Wangzj
Wangzj 2 years ago
commit 58d25e3b04

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*.iml
.gradle
/local.properties
/.idea/caches
/.idea/libraries
/.idea/modules.xml
/.idea/workspace.xml
/.idea/navEditor.xml
/.idea/assetWizardSettings.xml
.DS_Store
/build
/captures
.externalNativeBuild
.cxx
local.properties

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# Default ignored files
/shelf/
/workspace.xml

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="CompilerConfiguration">
<bytecodeTargetLevel target="11" />
</component>
</project>

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="deploymentTargetDropDown">
<targetSelectedWithDropDown>
<Target>
<type value="QUICK_BOOT_TARGET" />
<deviceKey>
<Key>
<type value="VIRTUAL_DEVICE_PATH" />
<value value="C:\Users\Lenovo\.android\avd\Pixel_XL_API_30.avd" />
</Key>
</deviceKey>
</Target>
</targetSelectedWithDropDown>
<timeTargetWasSelectedWithDropDown value="2022-10-25T13:49:43.646135700Z" />
</component>
</project>

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="GradleMigrationSettings" migrationVersion="1" />
<component name="GradleSettings">
<option name="linkedExternalProjectsSettings">
<GradleProjectSettings>
<option name="testRunner" value="GRADLE" />
<option name="distributionType" value="DEFAULT_WRAPPED" />
<option name="externalProjectPath" value="$PROJECT_DIR$" />
<option name="modules">
<set>
<option value="$PROJECT_DIR$" />
<option value="$PROJECT_DIR$/app" />
</set>
</option>
</GradleProjectSettings>
</option>
</component>
</project>

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ExternalStorageConfigurationManager" enabled="true" />
<component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="Android Studio default JDK" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/build/classes" />
</component>
<component name="ProjectType">
<option name="id" value="Android" />
</component>
</project>

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# Default ignored files
/shelf/
/workspace.xml

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="GradleSettings">
<option name="linkedExternalProjectsSettings">
<GradleProjectSettings>
<option name="testRunner" value="GRADLE" />
<option name="distributionType" value="DEFAULT_WRAPPED" />
<option name="externalProjectPath" value="$PROJECT_DIR$" />
</GradleProjectSettings>
</option>
</component>
</project>

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ExternalStorageConfigurationManager" enabled="true" />
<component name="ProjectRootManager" version="2" project-jdk-name="Android Studio default JDK" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/build/classes" />
</component>
<component name="ProjectType">
<option name="id" value="Android" />
</component>
</project>

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# For more information about using CMake with Android Studio, read the
# documentation: https://d.android.com/studio/projects/add-native-code.html
# Sets the minimum version of CMake required to build the native library.
cmake_minimum_required(VERSION 3.4.1)
# Creates and names a library, sets it as either STATIC
# or SHARED, and provides the relative paths to its source code.
# You can define multiple libraries, and CMake builds them for you.
# Gradle automatically packages shared libraries with your APK.
add_library( # Sets the name of the library.
native-test
# Sets the library as a shared library.
SHARED
# Provides a relative path to your source file(s).
src/main/jni/native-test.c )
# Searches for a specified prebuilt library and stores the path as a
# variable. Because CMake includes system libraries in the search path by
# default, you only need to specify the name of the public NDK library
# you want to add. CMake verifies that the library exists before
# completing its build.
find_library( # Sets the name of the path variable.
log-lib
# Specifies the name of the NDK library that
# you want CMake to locate.
log )
# Specifies libraries CMake should link to your target library. You
# can link multiple libraries, such as libraries you define in this
# build script, prebuilt third-party libraries, or system libraries.
target_link_libraries( # Specifies the target library.
native-test
# Links the target library to the log library
# included in the NDK.
${log-lib} )

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plugins {
id 'com.android.application'
}
android {
namespace 'com.example.hamburger'
compileSdk 32
defaultConfig {
applicationId "com.example.hamburger"
minSdk 21
targetSdk 32
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
externalNativeBuild {
cmake {
cppFlags ""
}
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
externalNativeBuild {
cmake {
path "CMakeLists.txt"
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
buildFeatures {
viewBinding true
}
}
dependencies {
implementation 'androidx.appcompat:appcompat:1.4.1'
implementation 'com.google.android.material:material:1.5.0'
implementation 'androidx.constraintlayout:constraintlayout:2.1.3'
implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.4.1'
implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.4.1'
implementation 'androidx.navigation:navigation-fragment:2.4.1'
implementation 'androidx.navigation:navigation-ui:2.4.1'
implementation files('libs\\mysql-connector-java-5.1.49.jar')
testImplementation 'junit:junit:4.13.2'
androidTestImplementation 'androidx.test.ext:junit:1.1.3'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
implementation 'com.jakewharton:butterknife:10.0.0'
annotationProcessor 'com.jakewharton:butterknife-compiler:10.0.0'
//noinspection GradleCompatible
androidTestImplementation 'com.android.support.test:runner:1.0.2'
//noinspection GradleCompatible
//implementation 'com.android.support:recyclerview-v7:28.0.0'
implementation 'androidx.appcompat:appcompat:1.0.0'
//noinspection DuplicatePlatformClasses
implementation fileTree(include: ['*.jar'], dir: 'libs')
implementation files('libs/json-simple-1.1.jar')
}

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# Add project specific ProGuard rules here.
# You can control the set of applied configuration files using the
# proguardFiles setting in build.gradle.
#
# For more details, see
# http://developer.android.com/guide/developing/tools/proguard.html
# If your project uses WebView with JS, uncomment the following
# and specify the fully qualified class name to the JavaScript interface
# class:
#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
# public *;
#}
# Uncomment this to preserve the line number information for
# debugging stack traces.
#-keepattributes SourceFile,LineNumberTable
# If you keep the line number information, uncomment this to
# hide the original source file name.
#-renamesourcefileattribute SourceFile

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package com.example.hamburger;
import android.content.Context;
import androidx.test.platform.app.InstrumentationRegistry;
import androidx.test.ext.junit.runners.AndroidJUnit4;
import org.junit.Test;
import org.junit.runner.RunWith;
import static org.junit.Assert.*;
/**
* Instrumented test, which will execute on an Android device.
*
* @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
*/
@RunWith(AndroidJUnit4.class)
public class ExampleInstrumentedTest {
@Test
public void useAppContext() {
// Context of the app under test.
Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
assertEquals("com.example.hamburger", appContext.getPackageName());
}
}

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<?xml version="1.0" encoding="utf-8"?>
<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
<background android:drawable="@color/ic_launcher_background"/>
<foreground android:drawable="@mipmap/ic_launcher_foreground"/>
</adaptive-icon>

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<?xml version="1.0" encoding="utf-8"?>
<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
<background android:drawable="@color/ic_launcher_background"/>
<foreground android:drawable="@mipmap/ic_launcher_foreground"/>
</adaptive-icon>

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<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="ic_launcher_background">#0E3B53</color>
</resources>

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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<application
android:allowBackup="true"
android:dataExtractionRules="@xml/data_extraction_rules"
android:fullBackupContent="@xml/backup_rules"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/Theme.Hamburger"
tools:targetApi="31">
<activity
android:name=".MainActivity2"
android:exported="false"
android:label="@string/title_activity_main2">
<meta-data
android:name="android.app.lib_name"
android:value="" />
</activity>
<activity
android:name=".MainActivity"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<meta-data
android:name="android.app.lib_name"
android:value="" />
</activity>
<activity
android:name=".main_window"
android:exported="true" />
<activity
android:name=".register"
android:exported="true" />
<activity
android:name=".notifications"
android:exported="true" />
<activity android:name="com.example.dadac.testrosbridge.TransferSta"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="com.dadac.testrosbridge.RosBridgeActivity"/>
</application>
</manifest>

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package com.dadac.testrosbridge;
import android.app.Application;
import com.jilk.ros.rosbridge.ROSBridgeClient;
/**
* @ Create by dadac on 2018/10/8.
* @Function:
* @Return:
*/
public class RCApplication extends Application {
ROSBridgeClient client;
@Override
public void onCreate() {
super.onCreate();
}
@Override
public void onTerminate() {
if (client != null)
client.disconnect();
super.onTerminate();
}
public ROSBridgeClient getRosClient() {
return client;
}
public void setRosClient(ROSBridgeClient client) {
this.client = client;
}
}

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package com.dadac.testrosbridge;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import com.example.hamburger.R;
import com.jilk.ros.ROSClient;
import com.jilk.ros.rosbridge.ROSBridgeClient;
import com.jilk.ros.rosbridge.implementation.PublishEvent;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;
import de.greenrobot.event.EventBus;
/**
* @ Create by dadac on 2018/10/8.
* @Function: service
* @Return:
*/
public class RosBridgeActivity extends Activity implements View.OnClickListener {
ROSBridgeClient client;
String ip = "10.8.87.23"; //虚拟机的 IP
// String ip = "192.168.10.20"; //半残废机器人的IP
// String ip = "192.168.10.200"; //机器人的IP
String port = "9090";
boolean isSubscrible = true;
private static int flagSubscrible = 0;
private Button DC_Button_Subscrible;
private Button DC_Button_Publish;
private EditText DC_EditText_EnterWord;
private TextView DC_TextView_ShowData;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_dashboard);
EventBus.getDefault().register(this);
onConnect(ip, port);
subMenuShow();
}
//初始化界面的参数
private void subMenuShow() {
DC_Button_Subscrible = (Button) findViewById(R.id.DC_Button_Subscrible);
DC_Button_Subscrible.setOnClickListener(this);
DC_Button_Publish = (Button) findViewById(R.id.DC_Button_Publish);
DC_Button_Publish.setOnTouchListener(new ComponentOnTouch());
DC_EditText_EnterWord = (EditText) findViewById(R.id.DC_EditText_EnterWord);
DC_TextView_ShowData = (TextView) findViewById(R.id.DC_TextView_ShowData);
}
/**
* @Function:
* @Return:
*/
public void onConnect(String ip, String port) {
client = new ROSBridgeClient("ws://" + ip + ":" + port);
boolean conneSucc = client.connect(new ROSClient.ConnectionStatusListener() {
@Override
public void onConnect() {
client.setDebug(true);
((RCApplication) getApplication()).setRosClient(client);
showTip("Connect ROS success");
Log.d("dachen", "Connect ROS success");
}
@Override
public void onDisconnect(boolean normal, String reason, int code) {
showTip("ROS disconnect");
Log.d("dachen", "ROS disconnect");
}
@Override
public void onError(Exception ex) {
ex.printStackTrace();
showTip("ROS communication error");
Log.d("dachen", "ROS communication error");
}
});
}
//接收来自Ros端的数据
private void ReceiveDataToRos() {
if (isSubscrible == true) {
String msg1 = "{\"op\":\"subscribe\",\"topic\":\"/chatter\"}";
client.send(msg1);
} else if (isSubscrible == false) {
String msg2 = "{\"op\":\"unsubscribe\",\"topic\":\"/chatter\"}";
client.send(msg2);
}
}
//发送数据到ROS端
private void SendDataToRos(String data) {
String msg1 = "{ \"op\": \"publish\", \"topic\": \"/chatter\", \"msg\": { \"data\": \"" + data + " \" }}";
// String msg2 = "{\"op\":\"publish\",\"topic\":\"/cmd_vel\",\"msg\":{\"linear\":{\"x\":" + 0 + ",\"y\":" +
// 0 + ",\"z\":0},\"angular\":{\"x\":0,\"y\":0,\"z\":" + 0.5 + "}}}";
client.send(msg1);
}
private void showTip(final String tip) {
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(RosBridgeActivity.this, tip, Toast.LENGTH_SHORT).show();
}
});
}
public void onEvent(final PublishEvent event) {
if ("/chatter".equals(event.name)) {
parseChatterTopic(event);
return;
}
Log.d("dachen", event.msg);
}
private void parseChatterTopic(PublishEvent event) {
try {
JSONParser parser = new JSONParser();
org.json.simple.JSONObject jsonObject = (org.json.simple.JSONObject) parser.parse(event.msg);
String jsondata = (String) jsonObject.get("data");
DC_TextView_ShowData.setText(jsondata);
Log.i("dachen", jsondata);
} catch (ParseException e) {
e.printStackTrace();
}
}
@SuppressLint("NonConstantResourceId")
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.DC_Button_Subscrible:
if (flagSubscrible % 2 == 0) {
isSubscrible = true;
DC_Button_Subscrible.setText("Subscrible");
}
if (flagSubscrible % 2 == 1) {
isSubscrible = false;
DC_Button_Subscrible.setText("unSubscrible");
}
flagSubscrible++;
ReceiveDataToRos();
break;
default:
break;
}
}
private class ComponentOnTouch implements View.OnTouchListener {
@SuppressLint("NonConstantResourceId")
@Override
public boolean onTouch(View v, MotionEvent event) {
switch (v.getId()) {
case R.id.DC_Button_Publish:
onTouchChange("up", event.getAction());
break;
default:
break;
}
return true;
}
}
private boolean Btn_LongPress = false;
class MyThread extends Thread {
@Override
public void run() {
while (Btn_LongPress) {
try {
Thread.sleep(10);
} catch (InterruptedException e) {
e.printStackTrace();
}
SendDataToRos("3");
}
}
}
private void onTouchChange(String methodName, int eventAction) {
MyThread myThread = new MyThread();
// 按下松开分别对应启动停止线程方法
if ("up".equals(methodName)) {
if (eventAction == MotionEvent.ACTION_DOWN) {
myThread.start();
Btn_LongPress = true;
} else if (eventAction == MotionEvent.ACTION_UP) {
SendDataToRos("stop");
if (myThread != null)
Btn_LongPress = false;
}
}
}
}

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package com.example.dadac.testrosbridge;
/**
* @ Create by dadac on 2018/10/8.
* @Function: JNI
* @Return:
*/
public class JNICallAll {
// Used to load the 'native-lib' library on application startup.
static {
System.loadLibrary("native-test");
}
/**
* A native method that is implemented by the 'native-lib' native library,
* which is packaged with this application.
*/
public native String stringFromJNI();
}

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package com.example.dadac.testrosbridge;
import android.content.Intent;
//import android.support.v7.app.AppCompatActivity;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import com.dadac.testrosbridge.RosBridgeActivity;
import com.example.hamburger.R;
public class TransferSta extends AppCompatActivity {
private Button DC_Button_JumpToRos;
/* @Override
/*protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_dashboard);
DC_Button_JumpToRos = (Button) findViewById(R.id.DC_Button_JumpToRos);
}
public void JumpToActivity(View view) {
Intent myIntentRos = new Intent(TransferSta.this, RosBridgeActivity.class);
startActivity(myIntentRos);
}*/
}

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package com.example.hamburger;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.EditText;
import android.view.View;
import android.widget.Toast;
import android.widget.Button;
import android.os.Handler;
import android.os.Message;
import android.annotation.SuppressLint;
import com.example.hamburger.dao.UserDao;
public class MainActivity extends AppCompatActivity {
//这个类主要用来进行,账号密码的验证,以及监听事件的编写。
// 所以首先需要将一开始设计的输入文本框id name 和passwd获取。
EditText name;//创建账号
EditText passwd;//创建密码
private static final String TAG="mysql-hamburger-MainActivity";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
name=findViewById(R.id.name);//获取输入的账号
passwd=findViewById(R.id.passwd);//获取输入的密码
//这是能够登录的账号密码
String Usename = "admin";
String Upwd = "12345";
//创建两个String类储存从输入文本框获取到的内容
String user = name.getText().toString().trim();
String pwd = passwd.getText().toString().trim();
//获取按钮
Button button = (Button) findViewById(R.id.button);
Button button_1 = (Button) findViewById(R.id.register);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick (View v){
//监听按钮,如果点击,就跳转
Intent intent = new Intent();
//前一个MainActivity.this是目前页面后面一个是要跳转的下一个页面
intent.setClass(MainActivity.this, MainActivity2.class);
startActivity(intent);
//Toast.makeText(MainActivity.this, "欢迎你", Toast.LENGTH_SHORT).show();
}
});
/*//进行判断,如果两个内容都相等,就显现第一条语句,反之,第二条。
if(user.equals(Usename) & pwd.equals(Upwd)){
//按钮进行监听
}*/
//else{
// Toast.makeText(MainActivity.this, "身份验证错误,禁止访问", Toast.LENGTH_SHORT).show();
//}
//按钮进行监听
button_1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//监听按钮,如果点击,就跳转
Intent intent = new Intent();
//前一个MainActivity.this是目前页面后面一个是要跳转的下一个页面
intent.setClass(MainActivity.this, register.class);
startActivity(intent);
}
});
}
public void login(View view){
EditText EditTextAccount = findViewById(R.id.name);
EditText EditTextPassword = findViewById(R.id.passwd);
new Thread(){
@Override
public void run() {
UserDao userDao = new UserDao();
int msg = userDao.login(EditTextAccount.getText().toString(),EditTextPassword.getText().toString());
hand1.sendEmptyMessage(msg);
}
}.start();
}
public void reg(View view){
startActivity(new Intent(getApplicationContext(),register.class));
}
@SuppressLint("HandlerLeak")
final Handler hand1 = new Handler() {
@Override
public void handleMessage(Message msg) {
if (msg.what == 0){
Toast.makeText(getApplicationContext(), "登录失败", Toast.LENGTH_LONG).show();
} else if (msg.what == 1) {
Toast.makeText(getApplicationContext(), "登录成功", Toast.LENGTH_LONG).show();
} else if (msg.what == 2){
Toast.makeText(getApplicationContext(), "密码错误", Toast.LENGTH_LONG).show();
} else if (msg.what == 3){
Toast.makeText(getApplicationContext(), "账号不存在", Toast.LENGTH_LONG).show();
}
}
};
}

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package com.example.hamburger;
import android.os.Bundle;
import com.google.android.material.bottomnavigation.BottomNavigationView;
import androidx.appcompat.app.AppCompatActivity;
import androidx.navigation.NavController;
import androidx.navigation.Navigation;
import androidx.navigation.ui.AppBarConfiguration;
import androidx.navigation.ui.NavigationUI;
import com.example.hamburger.databinding.ActivityMain2Binding;
public class MainActivity2 extends AppCompatActivity {
private ActivityMain2Binding binding;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
binding = ActivityMain2Binding.inflate(getLayoutInflater());
setContentView(binding.getRoot());
BottomNavigationView navView = findViewById(R.id.nav_view);
// Passing each menu ID as a set of Ids because each
// menu should be considered as top level destinations.
AppBarConfiguration appBarConfiguration = new AppBarConfiguration.Builder(
R.id.navigation_home, R.id.navigation_dashboard, R.id.navigation_notifications)
.build();
NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment_activity_main2);
NavigationUI.setupActionBarWithNavController(this, navController, appBarConfiguration);
NavigationUI.setupWithNavController(binding.navView, navController);
}
}

@ -0,0 +1,38 @@
package com.example.hamburger;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import com.example.hamburger.R;
import com.example.hamburger.notifications;
import com.example.hamburger.ui.notifications.NotificationsFragment;
public class add extends AppCompatActivity {
EditText mytext;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add);
mytext = findViewById(R.id.mt);
}
public void Confirm() {
Button button = (Button) findViewById(R.id.conf);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent();
intent.setClass(add.this, NotificationsFragment.class);
startActivity(intent);
}
});
}
}

@ -0,0 +1,165 @@
package com.example.hamburger.dao;
import com.example.hamburger.entity.User;
import com.example.hamburger.utils.JDBCUtils;
import android.util.Log;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.HashMap;
/**
* author: yan
* date: 2022.02.17
* **/
public class UserDao {
private static final String TAG = "mysql-party-UserDao";
/**
* function:
* */
public int login(String userAccount, String userPassword){
HashMap<String, Object> map = new HashMap<>();
// 根据数据库名称,建立连接
Connection connection = JDBCUtils.getConn();
int msg = 0;
try {
// mysql简单的查询语句。这里是根据user表的userAccount字段来查询某条记录
String sql = "select * from user where userAccount = ?";
if (connection != null){// connection不为null表示与数据库建立了连接
PreparedStatement ps = connection.prepareStatement(sql);
if (ps != null){
Log.e(TAG,"账号:" + userAccount);
//根据账号进行查询
ps.setString(1, userAccount);
// 执行sql查询语句并返回结果集
ResultSet rs = ps.executeQuery();
int count = rs.getMetaData().getColumnCount();
//将查到的内容储存在map里
while (rs.next()){
// 注意下标是从1开始的
for (int i = 1;i <= count;i++){
String field = rs.getMetaData().getColumnName(i);
map.put(field, rs.getString(field));
}
}
connection.close();
ps.close();
if (map.size()!=0){
StringBuilder s = new StringBuilder();
//寻找密码是否匹配
for (String key : map.keySet()){
if(key.equals("userPassword")){
if(userPassword.equals(map.get(key))){
msg = 1; //密码正确
}
else
msg = 2; //密码错误
break;
}
}
}else {
Log.e(TAG, "查询结果为空");
msg = 3;
}
}else {
msg = 0;
}
}else {
msg = 0;
}
}catch (Exception e){
e.printStackTrace();
Log.d(TAG, "异常login" + e.getMessage());
msg = 0;
}
return msg;
}
/**
* function:
* */
public boolean register(User user){
HashMap<String, Object> map = new HashMap<>();
// 根据数据库名称,建立连接
Connection connection = JDBCUtils.getConn();
try {
String sql = "insert into user(userAccount,userPassword,userName,userType,userState,userDel) values (?,?,?,?,?,?)";
if (connection != null){// connection不为null表示与数据库建立了连接
PreparedStatement ps = connection.prepareStatement(sql);
if (ps != null){
//将数据插入数据库
ps.setString(1,user.getUserAccount());
ps.setString(2,user.getUserPassword());
ps.setString(3,user.getUserName());
ps.setInt(4,user.getUserType());
ps.setInt(5, user.getUserState());
ps.setInt(6,user.getUserDel());
// 执行sql查询语句并返回结果集
int rs = ps.executeUpdate();
if(rs>0)
return true;
else
return false;
}else {
return false;
}
}else {
return false;
}
}catch (Exception e){
e.printStackTrace();
Log.e(TAG, "异常register" + e.getMessage());
return false;
}
}
/**
* function:
* */
public User findUser(String userAccount) {
// 根据数据库名称,建立连接
Connection connection = JDBCUtils.getConn();
User user = null;
try {
String sql = "select * from user where userAccount = ?";
if (connection != null){// connection不为null表示与数据库建立了连接
PreparedStatement ps = connection.prepareStatement(sql);
if (ps != null) {
ps.setString(1, userAccount);
ResultSet rs = ps.executeQuery();
while (rs.next()) {
//注意下标是从1开始
int id = rs.getInt(1);
String userAccount1 = rs.getString(2);
String userPassword = rs.getString(3);
String userName = rs.getString(4);
int userType = rs.getInt(5);
int userState = rs.getInt(6);
int userDel = rs.getInt(7);
user = new User(id, userAccount1, userPassword, userName, userType, userState, userDel);
}
}
}
}catch (Exception e){
e.printStackTrace();
Log.d(TAG, "异常findUser" + e.getMessage());
return null;
}
return user;
}
}

@ -0,0 +1,83 @@
package com.example.hamburger.entity;
public class User {
private int id;
private String userAccount;
private String userPassword;
private String userName;
private int userType;
private int userState;
private int userDel;
public User() {
}
public User(int id, String userAccount, String userPassword, String userName, int userType, int userState, int userDel) {
this.id = id;
this.userAccount = userAccount;
this.userPassword = userPassword;
this.userName = userName;
this.userType = userType;
this.userState = userState;
this.userDel = userDel;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUserAccount() {
return userAccount;
}
public void setUserAccount(String userAccount) {
this.userAccount = userAccount;
}
public String getUserPassword() {
return userPassword;
}
public void setUserPassword(String userPassword) {
this.userPassword = userPassword;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public int getUserType() {
return userType;
}
public void setUserType(int userType) {
this.userType = userType;
}
public int getUserState() {
return userState;
}
public void setUserState(int userState) {
this.userState = userState;
}
public int getUserDel() {
return userDel;
}
public void setUserDel(int userDel) {
this.userDel = userDel;
}
}

@ -0,0 +1,15 @@
package com.example.hamburger;
import android.os.Bundle;
import androidx.appcompat.app.AppCompatActivity;
public class main_window extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//这个是获取布局文件的,这里是你下一个页面的布局文件//注意这个是跳转界面的不能设置错,应该是第一个
setContentView(R.layout.main_window);
}
}

@ -0,0 +1,29 @@
package com.example.hamburger;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class notifications extends AppCompatActivity {
private TextView tv;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_notifications);
Button button = (Button) findViewById(R.id.btn1);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent();
intent.setClass(notifications.this, add.class);
startActivity(intent);
}
});
}
}

@ -0,0 +1,65 @@
package com.example.hamburger;
import android.annotation.SuppressLint;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import androidx.appcompat.app.AppCompatActivity;
public class register extends AppCompatActivity {
EditText name;//创建账号
EditText passwd;//创建密码
EditText ackpasswd;
@SuppressLint("MissingInflatedId")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//这个是获取布局文件的,这里是你下一个页面的布局文件//注意这个是跳转界面的不能设置错,应该是第一个
setContentView(R.layout.activity_register);
name=findViewById(R.id.user_name);//获取输入的账号
passwd=findViewById(R.id.new_passwd);//获取输入的密码
ackpasswd=findViewById(R.id.ack_passwd);
}
public void Register_(){
//获取按钮
Button button = (Button) findViewById(R.id.register_);
//按钮进行监听
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//监听按钮,如果点击,就跳转
Intent intent = new Intent();
//前一个MainActivity.this是目前页面后面一个是要跳转的下一个页面
intent.setClass(register.this, MainActivity.class);
startActivity(intent);
}
});
}
public void Ret(){
//获取按钮
Button button = (Button) findViewById(R.id.ret);
//按钮进行监听
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//监听按钮,如果点击,就跳转
Intent intent = new Intent();
//前一个MainActivity.this是目前页面后面一个是要跳转的下一个页面
intent.setClass(register.this, MainActivity.class);
startActivity(intent);
}
});
}
}

@ -0,0 +1,37 @@
package com.example.hamburger.ui.dashboard;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;
import androidx.lifecycle.ViewModelProvider;
import com.example.hamburger.databinding.FragmentDashboardBinding;
public class DashboardFragment extends Fragment {
private FragmentDashboardBinding binding;
public View onCreateView(@NonNull LayoutInflater inflater,
ViewGroup container, Bundle savedInstanceState) {
DashboardViewModel dashboardViewModel =
new ViewModelProvider(this).get(DashboardViewModel.class);
binding = FragmentDashboardBinding.inflate(inflater, container, false);
View root = binding.getRoot();
final TextView textView = binding.v1;
dashboardViewModel.getText().observe(getViewLifecycleOwner(), textView::setText);
return root;
}
@Override
public void onDestroyView() {
super.onDestroyView();
binding = null;
}
}

@ -0,0 +1,19 @@
package com.example.hamburger.ui.dashboard;
import androidx.lifecycle.LiveData;
import androidx.lifecycle.MutableLiveData;
import androidx.lifecycle.ViewModel;
public class DashboardViewModel extends ViewModel {
private final MutableLiveData<String> mText;
public DashboardViewModel() {
mText = new MutableLiveData<>();
mText.setValue("");
}
public LiveData<String> getText() {
return mText;
}
}

@ -0,0 +1,37 @@
package com.example.hamburger.ui.home;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;
import androidx.lifecycle.ViewModelProvider;
import com.example.hamburger.databinding.FragmentHomeBinding;
public class HomeFragment extends Fragment {
private FragmentHomeBinding binding;
public View onCreateView(@NonNull LayoutInflater inflater,
ViewGroup container, Bundle savedInstanceState) {
HomeViewModel homeViewModel =
new ViewModelProvider(this).get(HomeViewModel.class);
binding = FragmentHomeBinding.inflate(inflater, container, false);
View root = binding.getRoot();
final TextView textView = binding.TextView1;
homeViewModel.getText().observe(getViewLifecycleOwner(), textView::setText);
return root;
}
@Override
public void onDestroyView() {
super.onDestroyView();
binding = null;
}
}

@ -0,0 +1,19 @@
package com.example.hamburger.ui.home;
import androidx.lifecycle.LiveData;
import androidx.lifecycle.MutableLiveData;
import androidx.lifecycle.ViewModel;
public class HomeViewModel extends ViewModel {
private final MutableLiveData<String> mText;
public HomeViewModel() {
mText = new MutableLiveData<>();
mText.setValue("This is home fragment");
}
public LiveData<String> getText() {
return mText;
}
}

@ -0,0 +1,57 @@
package com.example.hamburger.ui.notifications;
import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;
import androidx.lifecycle.ViewModelProvider;
import com.example.hamburger.R;
import com.example.hamburger.databinding.FragmentNotificationsBinding;
public class NotificationsFragment extends Fragment{
private FragmentNotificationsBinding binding;
private NotificationsViewModel notificationsViewModel;
private TextView tv;
public View onCreateView(@NonNull LayoutInflater inflater,
ViewGroup container, Bundle savedInstanceState) {
NotificationsViewModel notificationsViewModel =
new ViewModelProvider(this).get(NotificationsViewModel.class);
binding = FragmentNotificationsBinding.inflate(inflater, container, false);
View root = binding.getRoot();
final TextView textView = binding.textNotifications;
notificationsViewModel.getText().observe(getViewLifecycleOwner(), textView::setText);
final Button button=root.findViewById(R.id.btn1);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent();
intent.setClass(getActivity(), add.class);
startActivity(intent);
}
});
return root;
}
@Override
public void onDestroyView() {
super.onDestroyView();
binding = null;
}
}

@ -0,0 +1,19 @@
package com.example.hamburger.ui.notifications;
import androidx.lifecycle.LiveData;
import androidx.lifecycle.MutableLiveData;
import androidx.lifecycle.ViewModel;
public class NotificationsViewModel extends ViewModel {
private final MutableLiveData<String> mText;
public NotificationsViewModel() {
mText = new MutableLiveData<>();
mText.setValue("This is notifications fragment");
}
public LiveData<String> getText() {
return mText;
}
}

@ -0,0 +1,37 @@
package com.example.hamburger.ui.notifications;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import com.example.hamburger.R;
import com.example.hamburger.notifications;
public class add extends AppCompatActivity {
EditText mytext;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add);
mytext = findViewById(R.id.mt);
}
public void Confirm() {
Button button = (Button) findViewById(R.id.conf);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent();
intent.setClass(add.this, NotificationsFragment.class);
startActivity(intent);
}
});
}
}

@ -0,0 +1,37 @@
package com.example.hamburger.utils;
import java.sql.Connection;
import java.sql.DriverManager;
/**
* function
*/
public class JDBCUtils {
private static final String TAG = "mysql-party-JDBCUtils";
private static String driver = "com.mysql.jdbc.Driver";// MySql驱动
private static String dbName = "Hotel_system";// 数据库名称
private static String user = "root";// 用户名
private static String password = "123456";// 密码
public static Connection getConn(){
Connection connection = null;
try{
Class.forName(driver);// 动态加载类
String ip = "10.0.2.2";// 写成本机地址不能写成localhost同时手机和电脑连接的网络必须是同一个
// 尝试建立到给定数据库URL的连接
connection = DriverManager.getConnection("jdbc:mysql://" + ip + ":3306/" + dbName,
user, password);
}catch (Exception e){
e.printStackTrace();
}
return connection;
}
}

@ -0,0 +1,139 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros;
import com.jilk.ros.message.Clock;
import com.jilk.ros.message.Log;
import com.jilk.ros.rosapi.message.Empty;
import com.jilk.ros.rosapi.message.GetTime;
import com.jilk.ros.rosapi.message.MessageDetails;
import com.jilk.ros.rosapi.message.Type;
import com.jilk.ros.rosbridge.ROSBridgeClient;
public class Example {
public Example() {}
public static void main(String[] args) {
ROSBridgeClient client = new ROSBridgeClient("ws://10.8.87.23:9090");
client.connect();
//testTopic(client);
try {
testService(client);
}
catch (RuntimeException ex) {
ex.printStackTrace();
}
finally {
client.disconnect();
}
}
public static void testService(ROSBridgeClient client) {
try {
Service<Empty, GetTime> timeService =
new Service<Empty, GetTime>("/rosapi/get_time", Empty.class, GetTime.class, client);
timeService.verify();
//System.out.println("Time (secs): " + timeService.callBlocking(new Empty()).time.sec);
Service<com.jilk.ros.rosapi.message.Service, Type> serviceTypeService =
new Service<com.jilk.ros.rosapi.message.Service, Type>("/rosapi/service_type",
com.jilk.ros.rosapi.message.Service.class, Type.class, client);
serviceTypeService.verify();
String type = serviceTypeService.callBlocking(new com.jilk.ros.rosapi.message.Service("/rosapi/service_response_details")).type;
Service<Type, MessageDetails> serviceDetails =
new Service<Type, MessageDetails>("/rosapi/service_response_details",
Type.class, MessageDetails.class, client);
serviceDetails.verify();
//serviceDetails.callBlocking(new Type(type)).print();
com.jilk.ros.Topic<Log> logTopic =
new com.jilk.ros.Topic<Log>("/rosout", Log.class, client);
logTopic.verify();
/*
System.out.println("Nodes");
for (String s : client.getNodes())
System.out.println(" " + s);
System.out.println("Topics");
for (String s : client.getTopics()) {
System.out.println(s + ":");
client.getTopicMessageDetails(s).print();
}
System.out.println("Services");
for (String s : client.getServices()) {
System.out.println(s + ":");
client.getServiceRequestDetails(s).print();
System.out.println("-----------------");
client.getServiceResponseDetails(s).print();
}
*/
}
catch (InterruptedException ex) {
System.out.println("Process was interrupted.");
}
/*
Service<Empty, Topics> topicService =
new Service<Empty, Topics>("/rosapi/topics", Empty.class, Topics.class, client);
Service<Topic, Type> typeService =
new Service<Topic, Type>("/rosapi/topic_type", Topic.class, Type.class, client);
Service<Type, MessageDetails> messageService =
new Service<Type, MessageDetails>("/rosapi/message_details", Type.class, MessageDetails.class, client);
try {
Topics topics = topicService.callBlocking(new Empty());
for (String topicString : topics.topics) {
Topic topic = new Topic();
topic.topic = topicString;
Type type = typeService.callBlocking(topic);
MessageDetails details = messageService.callBlocking(type);
System.out.println("Topic: " + topic.topic + " Type: " + type.type);
details.print();
System.out.println();
}
Type type = new Type();
type.type = "time";
System.out.print("Single type check on \'time\': ");
messageService.callBlocking(type).print();
}
catch (InterruptedException ex) {
System.out.println("testService: process was interrupted.");
}
*/
}
public static void testTopic(ROSBridgeClient client) {
com.jilk.ros.Topic<Clock> clockTopic = new com.jilk.ros.Topic<Clock>("/clock", Clock.class, client);
clockTopic.subscribe();
try {
Thread.sleep(20000);} catch(InterruptedException ex) {}
Clock cl = null;
try {
cl = clockTopic.take(); // just gets one
}
catch (InterruptedException ex) {}
cl.print();
cl.clock.nsecs++;
clockTopic.unsubscribe();
clockTopic.advertise();
clockTopic.publish(cl);
clockTopic.unadvertise();
}
}

@ -0,0 +1,26 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros;
import com.jilk.ros.message.Message;
public interface MessageHandler<T extends Message> {
public void onMessage(T message);
}

@ -0,0 +1,68 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros;
import com.jilk.ros.message.Message;
import com.jilk.ros.rosapi.message.TypeDef;
import com.jilk.ros.rosbridge.FullMessageHandler;
import com.jilk.ros.rosbridge.ROSBridgeClient;
import com.jilk.ros.rosbridge.operation.Operation;
public abstract class ROSClient {
public ROSClient() {}
public static ROSClient create(String uriString) {
// if we ever implement other ROSClient types, we'll key off the URI protocol (e.g., ws://)
// we'd also have to abstract out Topic and Service since they depend on the ROSBridge operations
return new ROSBridgeClient(uriString);
}
public abstract boolean connect();
public abstract boolean connect(ConnectionStatusListener listener);
public abstract void disconnect();
public abstract void send(Operation operation);
public abstract void send(String json);
public abstract void register(Class<? extends Operation> c,
String s,
Class<? extends Message> m,
FullMessageHandler h);
public abstract void unregister(Class<? extends Operation> c, String s);
public abstract void setDebug(boolean debug);
public abstract String[] getNodes() throws InterruptedException;
public abstract String[] getTopics() throws InterruptedException;
public abstract String[] getServices() throws InterruptedException;
public abstract TypeDef getTopicMessageDetails(String topic) throws InterruptedException;
public abstract TypeDef[] getTopicMessageList(String topic) throws InterruptedException;
public abstract TypeDef getServiceRequestDetails(String service) throws InterruptedException;
public abstract TypeDef[] getServiceRequestList(String service) throws InterruptedException;
public abstract TypeDef getServiceResponseDetails(String service) throws InterruptedException;
public abstract TypeDef[] getServiceResponseList(String service) throws InterruptedException;
public abstract TypeDef getTypeDetails(String type) throws InterruptedException;
public abstract TypeDef[] getTypeList(String type) throws InterruptedException;
public abstract void typeMatch(TypeDef t, Class<? extends Message> c) throws InterruptedException;
public abstract Object getUnderlyingClient(); // for debugging
public interface ConnectionStatusListener {
public void onConnect();
public void onDisconnect(boolean normal, String reason, int code);
public void onError(Exception ex);
}
}

@ -0,0 +1,134 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros;
import com.jilk.ros.message.Message;
import com.jilk.ros.rosbridge.FullMessageHandler;
import com.jilk.ros.rosbridge.operation.CallService;
import com.jilk.ros.rosbridge.operation.ServiceResponse;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.CountDownLatch;
public class Service<CallType extends Message, ResponseType extends Message> extends Message implements FullMessageHandler {
private String service;
private Class<? extends ResponseType> responseType;
private Class<? extends CallType> callType;
private ROSClient client;
private Map<String, CallRecord> calls;
public Service(String service, Class<? extends CallType> callType,
Class<? extends ResponseType> responseType, ROSClient client) {
this.service = service;
this.client = client;
this.responseType = responseType;
this.callType = callType;
calls = new HashMap<String, CallRecord>();
}
// A result can only be returned once; it is cleared from the hash before
// being sent/returned. This is to ensure that results do not accumulate
// indefinitely. If callers need to keep these around they can set up their
// own hash.
@Override
public void onMessage(String id, Message response) {
//System.out.print("Service.onMessage: ");
//response.print();
CallRecord call = calls.get(id);
if(call == null) {
System.out.print("No caller service response");
return;
}
if (call.handler != null) {
calls.remove(id);
call.handler.onMessage((ResponseType) response);
}
else {
call.result = (ResponseType) response;
call.latch.countDown();
}
}
public String call(CallType args) {
return callImpl(args, null);
}
public void callWithHandler(CallType args, MessageHandler<ResponseType> responseHandler) {
callImpl(args, responseHandler);
}
public ResponseType callBlocking(CallType args) throws InterruptedException {
return take(call(args));
}
private String callImpl(CallType args, MessageHandler<ResponseType> responseHandler) {
client.register(ServiceResponse.class, service, responseType, this); // do this once on creation?
CallService messageCallService = new CallService(service, args);
String id = messageCallService.id;
CallRecord callRecord = new CallRecord(responseHandler);
calls.put(id, callRecord);
client.send(messageCallService);
return id;
}
public ResponseType poll(String id) {
CallRecord call = calls.get(id);
if (call.result != null)
calls.remove(id);
return call.result;
}
public ResponseType take(String id) throws InterruptedException {
CallRecord call = calls.get(id);
call.latch.await();
calls.remove(id);
return call.result;
}
public void verify() throws InterruptedException {
boolean hasService = false;
for (String s : client.getServices()) {
if (s.equals(service)) {
hasService = true;
break;
}
}
if (!hasService)
throw new RuntimeException("Service \'" + service + "\' not available.");
client.typeMatch(client.getServiceRequestDetails(service), callType);
client.typeMatch(client.getServiceResponseDetails(service), responseType);
}
private class CallRecord {
public ResponseType result;
public CountDownLatch latch;
public MessageHandler<ResponseType> handler;
public CallRecord(MessageHandler<ResponseType> handler) {
this.result = null;
this.latch = new CountDownLatch(1);
this.handler = handler;
}
}
}

@ -0,0 +1,144 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros;
import com.jilk.ros.message.Message;
import com.jilk.ros.rosbridge.FullMessageHandler;
import com.jilk.ros.rosbridge.operation.Advertise;
import com.jilk.ros.rosbridge.operation.Operation;
import com.jilk.ros.rosbridge.operation.Publish;
import com.jilk.ros.rosbridge.operation.Subscribe;
import com.jilk.ros.rosbridge.operation.Unadvertise;
import com.jilk.ros.rosbridge.operation.Unsubscribe;
import java.util.concurrent.LinkedBlockingQueue;
public class Topic<T extends Message> extends LinkedBlockingQueue<T> implements FullMessageHandler {
protected String topic;
private Class<? extends T> type;
private String messageType;
private ROSClient client;
private Thread handlerThread;
public Topic(String topic, Class<? extends T> type, ROSClient client) {
this.topic = topic;
this.client = client;
this.type = type;
messageType = Message.getMessageType(type);
handlerThread = null;
}
@Override
public void onMessage(String id, Message message) {
add((T) message);
}
// warning: there is a delay between the completion of this method and
// the completion of the subscription; it takes longer than
// publishing multiple other messages, for example.
public void subscribe(MessageHandler<T> handler) {
startRunner(handler);
subscribe();
}
public void subscribe() {
client.register(Publish.class, topic, type, this);
send(new Subscribe(topic, messageType));
}
public void unsubscribe() {
// need to handle race conditions in incoming message handler
// so that once unsubscribe has happened the handler gets no more
// messages
send(new Unsubscribe(topic));
client.unregister(Publish.class, topic);
stopRunner();
}
private void startRunner(MessageHandler<T> handler) {
stopRunner();
handlerThread = new Thread(new MessageRunner(handler));
handlerThread.setName("Message handler for " + topic);
handlerThread.start();
}
private void stopRunner() {
if (handlerThread != null) {
handlerThread.interrupt();
clear();
handlerThread = null;
}
}
public void advertise() {
send(new Advertise(topic, messageType));
}
public void publish(T message) {
send(new Publish(topic, message));
}
public void unadvertise() {
send(new Unadvertise(topic));
}
private void send(Operation operation) {
client.send(operation);
}
public void verify() throws InterruptedException {
boolean hasTopic = false;
for (String s : client.getTopics()) {
if (s.equals(topic)) {
hasTopic = true;
break;
}
}
if (!hasTopic)
throw new RuntimeException("Topic \'" + topic + "\' not available.");
client.typeMatch(client.getTopicMessageDetails(topic), type);
}
private class MessageRunner implements Runnable {
private MessageHandler<T> handler;
public MessageRunner(MessageHandler<T> handler) {
this.handler = handler;
}
@Override
public void run() {
while (!Thread.interrupted()) {
try {
handler.onMessage(take());
}
catch (InterruptedException ex) {
break;
}
}
}
}
}

@ -0,0 +1,9 @@
package com.jilk.ros.message;
/**
* Created by xxhong on 16-11-17.
*/
@MessageType(string = "std_msgs/Int16MultiArray")
public class AudioMsg extends Message {
public short[] data;
}

@ -0,0 +1,25 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.message;
@MessageType(string = "rosgraph_msgs/Clock")
public class Clock extends Message {
public TimePrimitive clock;
}

@ -0,0 +1,24 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.message;
@MessageType(string = "std_msgs/Duration")
public class Duration extends DurationPrimitive {
}

@ -0,0 +1,25 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.message;
@MessageType(string = "duration")
public class DurationPrimitive extends TimePrimitive {
}

@ -0,0 +1,24 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.message;
@MessageType(string = "std_srvs/Empty")
public class Empty extends Message {
}

@ -0,0 +1,27 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.message;
@MessageType(string = "std_msgs/Header")
public class Header extends Message {
public long seq;
public TimePrimitive stamp;
public String frame_id;
}

@ -0,0 +1,32 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.message;
@MessageType(string = "rosgraph_msgs/Log")
public class Log extends Message {
public Header header;
public byte level;
public String name;
public String msg;
public String file;
public String function;
public long line;
public String[] topics;
}

@ -0,0 +1,202 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.message;
import java.lang.reflect.Array;
import java.lang.reflect.Field;
import java.util.Map;
@MessageType(string = "message")
public abstract class Message {
// Some requirements about message types:
// - It must have a MessageType declaration to be recognized on inbound messages
// - Every field must be explicitly designated as public
// - Every field that is not a primitive or near-primitive must be another Message class
// - If there is a non-empty constructor, you must also have an empty constructor
// - If it is set up as an inner class, it needs an explicit nullary constructor
// (note: I have seen an inner class otherwise fail, I have not tested it with the explicit constructor)
public static void register(Class c, Map<String, Class> messageClasses) {
try {
typecheck(c);
// Must register the class and not have duplicate
// This is not recursive because only the top level message class
// needs to be determined from the string - others are top-down.
String messageString = getMessageType(c);
Class existingClass = messageClasses.get(messageString);
if (existingClass != null && !existingClass.equals(c))
throw new MessageException("Message String \'" + messageString +
"\' is assigned to two different classes (" +
c.getName() + " and " + existingClass.getName() + ")");
messageClasses.put(messageString, c);
}
catch (MessageException ex) {
// should be changed to be a hooked method to give library user control
System.out.println(ex.getMessage());
}
}
public static String getMessageType(Class c) {
return ((MessageType) c.getAnnotation(MessageType.class)).string();
}
// this has never been used or tested but kind of belongs here
// commented out because it uses ReflectiveOperationException which is not available on Android
/*
public static Message newInstance(String className) {
try {
Class messageClass = Class.forName(className);
if (Message.class.isAssignableFrom(messageClass))
return (Message) messageClass.newInstance();
else throw new ClassCastException();
}
catch (ReflectiveOperationException ex) {
throw new RuntimeException("Unable to create message of class \'" + className + "\'.", ex);
}
}
*/
// Could probably do more checking here, but not sure what right now
private static void typecheck(Class c) throws MessageException {
// Must inherit from Message
if (!Message.class.isAssignableFrom(c))
throw new MessageException("Class \'" + c.getName() +
"\' does not extend Message");
// Must have the MessageType annotation
if (getMessageType(c) == null)
throw new MessageException("Class \'" + c.getName() +
"\' is missing the MessageType annotation");
// All fields must also be valid Message classes
// Note that this also serves to force-load all the message classes
// so that they get registered
for (Field f : c.getFields()) {
Class fc = f.getType();
if (fc.isArray()) {
Class ac = fc.getComponentType();
if (!isPrimitive(ac))
typecheck(ac);
}
else if (!isPrimitive(fc))
typecheck(fc);
}
}
public void print() {
printMessage(this, "");
}
private static void printMessage(Object o, String indent) {
for (Field f : o.getClass().getFields()) {
Class c = f.getType();
Object fieldObject = getFieldObject(f, o);
if (fieldObject != null) {
if (isPrimitive(c))
System.out.println(indent + f.getName() + ": " + fieldObject);
else if (c.isArray()) {
System.out.println(indent + f.getName() + ": [");
printArray(fieldObject, indent + " ");
System.out.println(indent + "]");
}
else {
System.out.println(indent + f.getName() + ":");
printMessage(fieldObject, indent + " ");
}
}
}
}
private static void printArray(Object array, String indent) {
Class arrayClass = array.getClass().getComponentType();
for (int i = 0; i < Array.getLength(array); i++) {
Object elementObject = Array.get(array, i);
if (elementObject != null) {
if (isPrimitive(arrayClass))
System.out.println(indent + i + ": " + elementObject);
else if (arrayClass.isArray()) { // this is not actually allowed in ROS
System.out.println(indent + i + ": [");
printArray(elementObject, indent + " ");
System.out.println(indent + "]");
}
else {
System.out.println(indent + i + ":");
printMessage(elementObject, indent + " ");
}
}
}
// remember to print array indices
}
public static boolean isPrimitive(Class c) {
return (c.isPrimitive() ||
c.equals(String.class) ||
Number.class.isAssignableFrom(c) ||
c.equals(Boolean.class));
}
// Copied from com.jilk.ros.rosbridge.JSON
private static Object getFieldObject(Field f, Object o) {
Object fo = null;
try {
fo = f.get(o);
}
catch (IllegalAccessException ex) {
ex.printStackTrace();
}
return fo;
}
public void copyFrom(Message source) {
try {
if (source.getClass() != getClass())
throw new RuntimeException("Attempt to copy non-matching classes");
for (Field f : getClass().getFields()) {
Class fc = f.getType();
if (fc.isArray())
throw new RuntimeException("copyFrom - array types not implemented");
else if (!isPrimitive(fc))
((Message) f.get(this)).copyFrom((Message) f.get(source));
else {
Object value = f.get(source);
f.set(this, value);
}
}
}
catch (IllegalAccessException ex) {
throw new RuntimeException("copyFrom error", ex);
}
catch (ClassCastException ex) {
throw new RuntimeException("copyFrom error", ex);
}
// ReflectiveOperationException is not available on Android (Java 1.6)
/*
catch (ReflectiveOperationException ex) {
throw new RuntimeException ("copyFrom error", ex);
}
*/
}
}

@ -0,0 +1,32 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.message;
public class MessageException extends Exception {
public MessageException(String message) {
super(message);
}
public MessageException(String message, Throwable cause) {
super(message, cause);
}
}

@ -0,0 +1,32 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.message;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
public @interface MessageType {
String string() default "";
}

@ -0,0 +1,13 @@
package com.jilk.ros.message;
/**
* Created by xxhong on 16-11-17.
*/
@MessageType(string = "std_msgs/String")
public class SemanticRequest extends Message {
public SemanticRequest(String args) {
jsonStr = args;
}
public String jsonStr;
}

@ -0,0 +1,9 @@
package com.jilk.ros.message;
/**
* Created by xxhong on 16-11-17.
*/
@MessageType(string = "std_msgs/String")
public class SemanticResponse extends Message {
public String result;
}

@ -0,0 +1,9 @@
package com.jilk.ros.message;
/**
* Created by xxhong on 16-11-17.
*/
@MessageType(string = "std_msgs/String")
public class StdMsg extends Message {
public String data;
}

@ -0,0 +1,24 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.message;
@MessageType(string = "std_msgs/Time")
public class Time extends TimePrimitive {
}

@ -0,0 +1,26 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.message;
@MessageType(string = "time")
public class TimePrimitive extends Message {
public int secs; // when requesting this format from ROSbridge, it uses 'sec' (no 's')
public int nsecs; // when requesting this format from ROSbridge, it uses 'nsec'
}

@ -0,0 +1,27 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.rosapi.message;
import com.jilk.ros.message.Message;
import com.jilk.ros.message.MessageType;
@MessageType(string = "std_msgs/Empty")
public class Empty extends Message {
}

@ -0,0 +1,30 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.rosapi.message;
import com.jilk.ros.message.Message;
import com.jilk.ros.message.MessageType;
import com.jilk.ros.message.TimePrimitive;
@MessageType(string = "rosapi/GetTimeResponse")
public class GetTime extends Message {
public TimePrimitive time;
}

@ -0,0 +1,28 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.rosapi.message;
import com.jilk.ros.message.Message;
import com.jilk.ros.message.MessageType;
@MessageType(string = "rosapi/MessageDetails")
public class MessageDetails extends Message {
public TypeDef[] typedefs;
}

@ -0,0 +1,28 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.rosapi.message;
import com.jilk.ros.message.Message;
import com.jilk.ros.message.MessageType;
@MessageType(string = "rosapi/Nodes")
public class Nodes extends Message {
public String[] nodes;
}

@ -0,0 +1,34 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.rosapi.message;
import com.jilk.ros.message.Message;
import com.jilk.ros.message.MessageType;
@MessageType(string = "rosapi/Service")
public class Service extends Message {
public String service;
public Service() {}
public Service(String service) {
this.service = service;
}
}

@ -0,0 +1,28 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.rosapi.message;
import com.jilk.ros.message.Message;
import com.jilk.ros.message.MessageType;
@MessageType(string = "rosapi/Services")
public class Services extends Message {
public String[] services;
}

@ -0,0 +1,34 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.rosapi.message;
import com.jilk.ros.message.Message;
import com.jilk.ros.message.MessageType;
@MessageType(string = "rosapi/Topic")
public class Topic extends Message {
public String topic;
public Topic() {}
public Topic(String topic) {
this.topic = topic;
}
}

@ -0,0 +1,28 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.rosapi.message;
import com.jilk.ros.message.Message;
import com.jilk.ros.message.MessageType;
@MessageType(string = "rosapi/Topics")
public class Topics extends Message {
public String[] topics;
}

@ -0,0 +1,34 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.rosapi.message;
import com.jilk.ros.message.Message;
import com.jilk.ros.message.MessageType;
@MessageType(string = "rosapi/Type")
public class Type extends Message {
public String type;
public Type() {}
public Type(String type) {
this.type = type;
}
}

@ -0,0 +1,55 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.rosapi.message;
import com.jilk.ros.message.Message;
import com.jilk.ros.message.MessageType;
@MessageType(string = "rosapi/TypeDef")
public class TypeDef extends Message {
public String type;
public String[] fieldnames;
public String[] fieldtypes;
public int[] fieldarraylen;
public String[] examples;
public static boolean match(String type, Class c) {
boolean result = false;
if (
(type.equals("bool") && ((boolean.class.equals(c)) || (Boolean.class.equals(c)))) ||
(type.equals("int8") && ((byte.class.equals(c)) || (Byte.class.equals(c)))) ||
(type.equals("byte") && ((byte.class.equals(c)) || (Byte.class.equals(c)))) || // deprecated
(type.equals("uint8") && ((short.class.equals(c)) || (Short.class.equals(c)))) ||
(type.equals("char") && ((short.class.equals(c)) || (Short.class.equals(c)))) || // deprecated
(type.equals("int16") && ((short.class.equals(c)) || (Short.class.equals(c)))) ||
(type.equals("uint16") && ((int.class.equals(c)) || (Integer.class.equals(c)))) ||
(type.equals("int32") && ((int.class.equals(c)) || (Integer.class.equals(c)))) ||
(type.equals("uint32") && ((long.class.equals(c)) || (Long.class.equals(c)))) ||
(type.equals("int64") && ((long.class.equals(c)) || (Long.class.equals(c)))) ||
(type.equals("float32") && ((float.class.equals(c)) || (Float.class.equals(c)))) ||
(type.equals("float64") && ((double.class.equals(c)) || (Double.class.equals(c)))) ||
(type.equals("uint64") && (java.math.BigInteger.class.equals(c))) ||
(type.equals("string") && (String.class.equals(c)))
)
result = true;
return result;
}
}

@ -0,0 +1,26 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.rosbridge;
import com.jilk.ros.message.Message;
public interface FullMessageHandler<T extends Message> {
public void onMessage(String id, T message);
}

@ -0,0 +1,260 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.rosbridge;
import com.jilk.ros.ROSClient;
import com.jilk.ros.Service;
import com.jilk.ros.message.Message;
import com.jilk.ros.message.MessageType;
import com.jilk.ros.rosapi.message.Empty;
import com.jilk.ros.rosapi.message.MessageDetails;
import com.jilk.ros.rosapi.message.Nodes;
import com.jilk.ros.rosapi.message.Services;
import com.jilk.ros.rosapi.message.Topic;
import com.jilk.ros.rosapi.message.Topics;
import com.jilk.ros.rosapi.message.Type;
import com.jilk.ros.rosapi.message.TypeDef;
import com.jilk.ros.rosbridge.implementation.ROSBridgeWebSocketClient;
import com.jilk.ros.rosbridge.operation.Operation;
import java.lang.reflect.Field;
public class ROSBridgeClient extends ROSClient {
String uriString;
ROSBridgeWebSocketClient client;
public ROSBridgeClient(String uriString) {
this.uriString = uriString;
}
@Override
public boolean connect() {
return connect(null);
}
@Override
public boolean connect(ROSClient.ConnectionStatusListener listener) {
boolean result = false;
client = ROSBridgeWebSocketClient.create(uriString);
if (client != null) {
client.setListener(listener);
try {
result = client.connectBlocking();
}
catch (InterruptedException ex) {}
}
return result;
}
@Override
public void disconnect() {
try {
client.closeBlocking();
}
catch (InterruptedException ex) {}
}
@Override
public void send(Operation operation) {
client.send(operation);
}
@Override
public void send(String json) {
client.send(json);
}
@Override
public void register(Class<? extends Operation> c,
String s,
Class<? extends Message> m,
FullMessageHandler h) {
client.register(c, s, m, h);
}
@Override
public void unregister(Class<? extends Operation> c, String s) {
client.unregister(c, s);
}
@Override
public void setDebug(boolean debug) {
client.setDebug(debug);
}
@Override
public String[] getNodes() throws InterruptedException {
Service<Empty, Nodes> nodeService =
new Service<Empty, Nodes>("/rosapi/nodes", Empty.class, Nodes.class, this);
return nodeService.callBlocking(new Empty()).nodes;
}
@Override
public String[] getTopics() throws InterruptedException {
Service<Empty, Topics> topicsService =
new Service<Empty, Topics>("/rosapi/topics", Empty.class, Topics.class, this);
return topicsService.callBlocking(new Empty()).topics;
}
@Override
public String[] getServices() throws InterruptedException {
Service<Empty, Services> servicesService =
new Service<Empty, Services>("/rosapi/services", Empty.class, Services.class, this);
return servicesService.callBlocking(new Empty()).services;
}
@Override
public TypeDef getTopicMessageDetails(String topic) throws InterruptedException {
return getTypeDetails(getTopicType(topic));
}
@Override
public TypeDef[] getTopicMessageList(String topic) throws InterruptedException {
return getTypeList(getTopicType(topic));
}
@Override
public TypeDef getServiceRequestDetails(String service) throws InterruptedException {
return getTypeDetails(getServiceType(service), "Request", "/rosapi/service_request_details");
}
@Override
public TypeDef[] getServiceRequestList(String service) throws InterruptedException {
return getTypeList(getServiceType(service), "Request", "/rosapi/service_request_details");
}
@Override
public TypeDef getServiceResponseDetails(String service) throws InterruptedException {
return getTypeDetails(getServiceType(service), "Response", "/rosapi/service_response_details");
}
@Override
public TypeDef[] getServiceResponseList(String service) throws InterruptedException {
return getTypeList(getServiceType(service), "Response", "/rosapi/service_response_details");
}
@Override
public TypeDef[] getTypeList(String type) throws InterruptedException {
return getTypeList(type, "", "/rosapi/message_details");
}
@Override
public TypeDef getTypeDetails(String type) throws InterruptedException {
return getTypeDetails(type, "", "/rosapi/message_details");
}
private TypeDef[] getTypeList(String type, String suffix, String serviceName) throws InterruptedException {
Service<Type, MessageDetails> messageDetailsService =
new Service<Type, MessageDetails>(serviceName,
Type.class, MessageDetails.class, this);
return messageDetailsService.callBlocking(new Type(type)).typedefs;
}
private TypeDef getTypeDetails(String type, String suffix, String serviceName) throws InterruptedException {
Service<Type, MessageDetails> messageDetailsService =
new Service<Type, MessageDetails>(serviceName,
Type.class, MessageDetails.class, this);
return findType(type + suffix, messageDetailsService.callBlocking(new Type(type)).typedefs);
}
private String getTopicType(String topic) throws InterruptedException {
Service<Topic, Type> topicTypeService =
new Service<Topic, Type>("/rosapi/topic_type",
Topic.class, Type.class, this);
return topicTypeService.callBlocking(new Topic(topic)).type;
}
private String getServiceType(String service) throws InterruptedException {
Service<com.jilk.ros.rosapi.message.Service, Type> serviceTypeService =
new Service<com.jilk.ros.rosapi.message.Service, Type>("/rosapi/service_type",
com.jilk.ros.rosapi.message.Service.class, Type.class, this);
return serviceTypeService.callBlocking(new com.jilk.ros.rosapi.message.Service(service)).type;
}
private TypeDef findType(String type, TypeDef[] types) {
TypeDef result = null;
for (TypeDef t : types) {
if (t.type.equals(type)) {
result = t;
break;
}
}
//System.out.println("ROSBridgeClient.findType: ");
//result.print();
return result;
}
@Override
public void typeMatch(TypeDef t, Class<? extends Message> c) throws InterruptedException {
if (c == null)
throw new RuntimeException("No registered message type found for: " + t.type);
Field[] fields = c.getFields();
for (int i = 0; i < t.fieldnames.length; i++) {
// Field names
String classFieldName = fields[i].getName();
String typeFieldName = t.fieldnames[i];
if (!classFieldName.equals(typeFieldName))
typeMatchError(t, c, "field name", typeFieldName, classFieldName);
// Array type of field
boolean typeIsArray = (t.fieldarraylen[i] >= 0);
boolean fieldIsArray = fields[i].getType().isArray();
if (typeIsArray != fieldIsArray)
typeMatchError(t, c, "array mismatch", typeFieldName, classFieldName);
// Get base type of field
Class fieldClass = fields[i].getType();
if (fieldIsArray)
fieldClass = fields[i].getType().getComponentType();
String type = t.fieldtypes[i];
// Field type for primitivesclient
if (Message.isPrimitive(fieldClass)) {
if (!TypeDef.match(type, fieldClass))
typeMatchError(t, c, "type mismatch", type, fieldClass.getName());
}
// Field type for non-primitive classes, and recurse
else {
if (!Message.class.isAssignableFrom(fieldClass))
throw new RuntimeException("Member " + classFieldName +
" of class " + fieldClass.getName() + " does not extend Message.");
String fieldClassString = ((MessageType) fieldClass.getAnnotation(MessageType.class)).string();
if (!type.equals(fieldClassString))
typeMatchError(t, c, "message type mismatch", type, fieldClassString);
typeMatch(getTypeDetails(type), fieldClass);
}
}
}
private void typeMatchError(TypeDef t, Class<? extends Message> c,
String error, String tString, String cString) {
throw new RuntimeException("Type match error between " +
t.type + " and " + c.getName() + ": " +
error + ": \'" + tString + "\' does not match \'" + cString + "\'.");
}
@Override
public Object getUnderlyingClient() {
return client;
}
}

@ -0,0 +1,575 @@
package com.jilk.ros.rosbridge.implementation;
import java.util.Arrays;
/** A very fast and memory efficient class to encode and decode to and from BASE64 in full accordance
* with RFC 2045.<br><br>
* On Windows XP sp1 with 1.4.2_04 and later ;), this encoder and decoder is about 10 times faster
* on small arrays (10 - 1000 bytes) and 2-3 times as fast on larger arrays (10000 - 1000000 bytes)
* compared to <code>sun.misc.Encoder()/Decoder()</code>.<br><br>
*
* On byte arrays the encoder is about 20% faster than Jakarta Commons Base64 Codec for encode and
* about 50% faster for decoding large arrays. This implementation is about twice as fast on very small
* arrays (&lt 30 bytes). If source/destination is a <code>String</code> this
* version is about three times as fast due to the fact that the Commons Codec result has to be recoded
* to a <code>String</code> from <code>byte[]</code>, which is very expensive.<br><br>
*
* This encode/decode algorithm doesn't create any temporary arrays as many other codecs do, it only
* allocates the resulting array. This produces less garbage and it is possible to handle arrays twice
* as large as algorithms that create a temporary array. (E.g. Jakarta Commons Codec). It is unknown
* whether Sun's <code>sun.misc.Encoder()/Decoder()</code> produce temporary arrays but since performance
* is quite low it probably does.<br><br>
*
* The encoder produces the same output as the Sun one except that the Sun's encoder appends
* a trailing line separator if the last character isn't a pad. Unclear why but it only adds to the
* length and is probably a side effect. Both are in conformance with RFC 2045 though.<br>
* Commons codec seem to always att a trailing line separator.<br><br>
*
* <b>Note!</b>
* The encode/decode method pairs (types) come in three versions with the <b>exact</b> same algorithm and
* thus a lot of code redundancy. This is to not create any temporary arrays for transcoding to/from different
* format types. The methods not used can simply be commented out.<br><br>
*
* There is also a "fast" version of all decode methods that works the same way as the normal ones, but
* har a few demands on the decoded input. Normally though, these fast verions should be used if the source if
* the input is known and it hasn't bee tampered with.<br><br>
*
* If you find the code useful or you find a bug, please send me a note at base64 @ miginfocom . com.
*
* Licence (BSD):
* ==============
*
* Copyright (c) 2004, Mikael Grev, MiG InfoCom AB. (base64 @ miginfocom . com)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice, this
* list of conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
* Neither the name of the MiG InfoCom AB nor the names of its contributors may be
* used to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* @version 2.2
* @author Mikael Grev
* Date: 2004-aug-02
* Time: 11:31:11
*/
public class Base64
{
private static final char[] CA = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".toCharArray();
private static final int[] IA = new int[256];
static {
Arrays.fill(IA, -1);
for (int i = 0, iS = CA.length; i < iS; i++)
IA[CA[i]] = i;
IA['='] = 0;
}
// ****************************************************************************************
// * char[] version
// ****************************************************************************************
/** Encodes a raw byte array into a BASE64 <code>char[]</code> representation i accordance with RFC 2045.
* @param sArr The bytes to convert. If <code>null</code> or length 0 an empty array will be returned.
* @param lineSep Optional "\r\n" after 76 characters, unless end of file.<br>
* No line separator will be in breach of RFC 2045 which specifies max 76 per line but will be a
* little faster.
* @return A BASE64 encoded array. Never <code>null</code>.
*/
public final static char[] encodeToChar(byte[] sArr, boolean lineSep)
{
// Check special case
int sLen = sArr != null ? sArr.length : 0;
if (sLen == 0)
return new char[0];
int eLen = (sLen / 3) * 3; // Length of even 24-bits.
int cCnt = ((sLen - 1) / 3 + 1) << 2; // Returned character count
int dLen = cCnt + (lineSep ? (cCnt - 1) / 76 << 1 : 0); // Length of returned array
char[] dArr = new char[dLen];
// Encode even 24-bits
for (int s = 0, d = 0, cc = 0; s < eLen;) {
// Copy next three bytes into lower 24 bits of int, paying attension to sign.
int i = (sArr[s++] & 0xff) << 16 | (sArr[s++] & 0xff) << 8 | (sArr[s++] & 0xff);
// Encode the int into four chars
dArr[d++] = CA[(i >>> 18) & 0x3f];
dArr[d++] = CA[(i >>> 12) & 0x3f];
dArr[d++] = CA[(i >>> 6) & 0x3f];
dArr[d++] = CA[i & 0x3f];
// Add optional line separator
if (lineSep && ++cc == 19 && d < dLen - 2) {
dArr[d++] = '\r';
dArr[d++] = '\n';
cc = 0;
}
}
// Pad and encode last bits if source isn't even 24 bits.
int left = sLen - eLen; // 0 - 2.
if (left > 0) {
// Prepare the int
int i = ((sArr[eLen] & 0xff) << 10) | (left == 2 ? ((sArr[sLen - 1] & 0xff) << 2) : 0);
// Set last four chars
dArr[dLen - 4] = CA[i >> 12];
dArr[dLen - 3] = CA[(i >>> 6) & 0x3f];
dArr[dLen - 2] = left == 2 ? CA[i & 0x3f] : '=';
dArr[dLen - 1] = '=';
}
return dArr;
}
/** Decodes a BASE64 encoded char array. All illegal characters will be ignored and can handle both arrays with
* and without line separators.
* @param sArr The source array. <code>null</code> or length 0 will return an empty array.
* @return The decoded array of bytes. May be of length 0. Will be <code>null</code> if the legal characters
* (including '=') isn't divideable by 4. (I.e. definitely corrupted).
*/
public final static byte[] decode(char[] sArr)
{
// Check special case
int sLen = sArr != null ? sArr.length : 0;
if (sLen == 0)
return new byte[0];
// Count illegal characters (including '\r', '\n') to know what size the returned array will be,
// so we don't have to reallocate & copy it later.
int sepCnt = 0; // Number of separator characters. (Actually illegal characters, but that's a bonus...)
for (int i = 0; i < sLen; i++) // If input is "pure" (I.e. no line separators or illegal chars) base64 this loop can be commented out.
if (IA[sArr[i]] < 0)
sepCnt++;
// Check so that legal chars (including '=') are evenly divideable by 4 as specified in RFC 2045.
if ((sLen - sepCnt) % 4 != 0)
return null;
int pad = 0;
for (int i = sLen; i > 1 && IA[sArr[--i]] <= 0;)
if (sArr[i] == '=')
pad++;
int len = ((sLen - sepCnt) * 6 >> 3) - pad;
byte[] dArr = new byte[len]; // Preallocate byte[] of exact length
for (int s = 0, d = 0; d < len;) {
// Assemble three bytes into an int from four "valid" characters.
int i = 0;
for (int j = 0; j < 4; j++) { // j only increased if a valid char was found.
int c = IA[sArr[s++]];
if (c >= 0)
i |= c << (18 - j * 6);
else
j--;
}
// Add the bytes
dArr[d++] = (byte) (i >> 16);
if (d < len) {
dArr[d++]= (byte) (i >> 8);
if (d < len)
dArr[d++] = (byte) i;
}
}
return dArr;
}
/** Decodes a BASE64 encoded char array that is known to be resonably well formatted. The method is about twice as
* fast as {@link #decode(char[])}. The preconditions are:<br>
* + The array must have a line length of 76 chars OR no line separators at all (one line).<br>
* + Line separator must be "\r\n", as specified in RFC 2045
* + The array must not contain illegal characters within the encoded string<br>
* + The array CAN have illegal characters at the beginning and end, those will be dealt with appropriately.<br>
* @param sArr The source array. Length 0 will return an empty array. <code>null</code> will throw an exception.
* @return The decoded array of bytes. May be of length 0.
*/
public final static byte[] decodeFast(char[] sArr)
{
// Check special case
int sLen = sArr.length;
if (sLen == 0)
return new byte[0];
int sIx = 0, eIx = sLen - 1; // Start and end index after trimming.
// Trim illegal chars from start
while (sIx < eIx && IA[sArr[sIx]] < 0)
sIx++;
// Trim illegal chars from end
while (eIx > 0 && IA[sArr[eIx]] < 0)
eIx--;
// get the padding count (=) (0, 1 or 2)
int pad = sArr[eIx] == '=' ? (sArr[eIx - 1] == '=' ? 2 : 1) : 0; // Count '=' at end.
int cCnt = eIx - sIx + 1; // Content count including possible separators
int sepCnt = sLen > 76 ? (sArr[76] == '\r' ? cCnt / 78 : 0) << 1 : 0;
int len = ((cCnt - sepCnt) * 6 >> 3) - pad; // The number of decoded bytes
byte[] dArr = new byte[len]; // Preallocate byte[] of exact length
// Decode all but the last 0 - 2 bytes.
int d = 0;
for (int cc = 0, eLen = (len / 3) * 3; d < eLen;) {
// Assemble three bytes into an int from four "valid" characters.
int i = IA[sArr[sIx++]] << 18 | IA[sArr[sIx++]] << 12 | IA[sArr[sIx++]] << 6 | IA[sArr[sIx++]];
// Add the bytes
dArr[d++] = (byte) (i >> 16);
dArr[d++] = (byte) (i >> 8);
dArr[d++] = (byte) i;
// If line separator, jump over it.
if (sepCnt > 0 && ++cc == 19) {
sIx += 2;
cc = 0;
}
}
if (d < len) {
// Decode last 1-3 bytes (incl '=') into 1-3 bytes
int i = 0;
for (int j = 0; sIx <= eIx - pad; j++)
i |= IA[sArr[sIx++]] << (18 - j * 6);
for (int r = 16; d < len; r -= 8)
dArr[d++] = (byte) (i >> r);
}
return dArr;
}
// ****************************************************************************************
// * byte[] version
// ****************************************************************************************
/** Encodes a raw byte array into a BASE64 <code>byte[]</code> representation i accordance with RFC 2045.
* @param sArr The bytes to convert. If <code>null</code> or length 0 an empty array will be returned.
* @param lineSep Optional "\r\n" after 76 characters, unless end of file.<br>
* No line separator will be in breach of RFC 2045 which specifies max 76 per line but will be a
* little faster.
* @return A BASE64 encoded array. Never <code>null</code>.
*/
public final static byte[] encodeToByte(byte[] sArr, boolean lineSep)
{
// Check special case
int sLen = sArr != null ? sArr.length : 0;
if (sLen == 0)
return new byte[0];
int eLen = (sLen / 3) * 3; // Length of even 24-bits.
int cCnt = ((sLen - 1) / 3 + 1) << 2; // Returned character count
int dLen = cCnt + (lineSep ? (cCnt - 1) / 76 << 1 : 0); // Length of returned array
byte[] dArr = new byte[dLen];
// Encode even 24-bits
for (int s = 0, d = 0, cc = 0; s < eLen;) {
// Copy next three bytes into lower 24 bits of int, paying attension to sign.
int i = (sArr[s++] & 0xff) << 16 | (sArr[s++] & 0xff) << 8 | (sArr[s++] & 0xff);
// Encode the int into four chars
dArr[d++] = (byte) CA[(i >>> 18) & 0x3f];
dArr[d++] = (byte) CA[(i >>> 12) & 0x3f];
dArr[d++] = (byte) CA[(i >>> 6) & 0x3f];
dArr[d++] = (byte) CA[i & 0x3f];
// Add optional line separator
if (lineSep && ++cc == 19 && d < dLen - 2) {
dArr[d++] = '\r';
dArr[d++] = '\n';
cc = 0;
}
}
// Pad and encode last bits if source isn't an even 24 bits.
int left = sLen - eLen; // 0 - 2.
if (left > 0) {
// Prepare the int
int i = ((sArr[eLen] & 0xff) << 10) | (left == 2 ? ((sArr[sLen - 1] & 0xff) << 2) : 0);
// Set last four chars
dArr[dLen - 4] = (byte) CA[i >> 12];
dArr[dLen - 3] = (byte) CA[(i >>> 6) & 0x3f];
dArr[dLen - 2] = left == 2 ? (byte) CA[i & 0x3f] : (byte) '=';
dArr[dLen - 1] = '=';
}
return dArr;
}
/** Decodes a BASE64 encoded byte array. All illegal characters will be ignored and can handle both arrays with
* and without line separators.
* @param sArr The source array. Length 0 will return an empty array. <code>null</code> will throw an exception.
* @return The decoded array of bytes. May be of length 0. Will be <code>null</code> if the legal characters
* (including '=') isn't divideable by 4. (I.e. definitely corrupted).
*/
public final static byte[] decode(byte[] sArr)
{
// Check special case
int sLen = sArr.length;
// Count illegal characters (including '\r', '\n') to know what size the returned array will be,
// so we don't have to reallocate & copy it later.
int sepCnt = 0; // Number of separator characters. (Actually illegal characters, but that's a bonus...)
for (int i = 0; i < sLen; i++) // If input is "pure" (I.e. no line separators or illegal chars) base64 this loop can be commented out.
if (IA[sArr[i] & 0xff] < 0)
sepCnt++;
// Check so that legal chars (including '=') are evenly divideable by 4 as specified in RFC 2045.
if ((sLen - sepCnt) % 4 != 0)
return null;
int pad = 0;
for (int i = sLen; i > 1 && IA[sArr[--i] & 0xff] <= 0;)
if (sArr[i] == '=')
pad++;
int len = ((sLen - sepCnt) * 6 >> 3) - pad;
byte[] dArr = new byte[len]; // Preallocate byte[] of exact length
for (int s = 0, d = 0; d < len;) {
// Assemble three bytes into an int from four "valid" characters.
int i = 0;
for (int j = 0; j < 4; j++) { // j only increased if a valid char was found.
int c = IA[sArr[s++] & 0xff];
if (c >= 0)
i |= c << (18 - j * 6);
else
j--;
}
// Add the bytes
dArr[d++] = (byte) (i >> 16);
if (d < len) {
dArr[d++]= (byte) (i >> 8);
if (d < len)
dArr[d++] = (byte) i;
}
}
return dArr;
}
/** Decodes a BASE64 encoded byte array that is known to be resonably well formatted. The method is about twice as
* fast as {@link #decode(byte[])}. The preconditions are:<br>
* + The array must have a line length of 76 chars OR no line separators at all (one line).<br>
* + Line separator must be "\r\n", as specified in RFC 2045
* + The array must not contain illegal characters within the encoded string<br>
* + The array CAN have illegal characters at the beginning and end, those will be dealt with appropriately.<br>
* @param sArr The source array. Length 0 will return an empty array. <code>null</code> will throw an exception.
* @return The decoded array of bytes. May be of length 0.
*/
public final static byte[] decodeFast(byte[] sArr)
{
// Check special case
int sLen = sArr.length;
if (sLen == 0)
return new byte[0];
int sIx = 0, eIx = sLen - 1; // Start and end index after trimming.
// Trim illegal chars from start
while (sIx < eIx && IA[sArr[sIx] & 0xff] < 0)
sIx++;
// Trim illegal chars from end
while (eIx > 0 && IA[sArr[eIx] & 0xff] < 0)
eIx--;
// get the padding count (=) (0, 1 or 2)
int pad = sArr[eIx] == '=' ? (sArr[eIx - 1] == '=' ? 2 : 1) : 0; // Count '=' at end.
int cCnt = eIx - sIx + 1; // Content count including possible separators
int sepCnt = sLen > 76 ? (sArr[76] == '\r' ? cCnt / 78 : 0) << 1 : 0;
int len = ((cCnt - sepCnt) * 6 >> 3) - pad; // The number of decoded bytes
byte[] dArr = new byte[len]; // Preallocate byte[] of exact length
// Decode all but the last 0 - 2 bytes.
int d = 0;
for (int cc = 0, eLen = (len / 3) * 3; d < eLen;) {
// Assemble three bytes into an int from four "valid" characters.
int i = IA[sArr[sIx++]] << 18 | IA[sArr[sIx++]] << 12 | IA[sArr[sIx++]] << 6 | IA[sArr[sIx++]];
// Add the bytes
dArr[d++] = (byte) (i >> 16);
dArr[d++] = (byte) (i >> 8);
dArr[d++] = (byte) i;
// If line separator, jump over it.
if (sepCnt > 0 && ++cc == 19) {
sIx += 2;
cc = 0;
}
}
if (d < len) {
// Decode last 1-3 bytes (incl '=') into 1-3 bytes
int i = 0;
for (int j = 0; sIx <= eIx - pad; j++)
i |= IA[sArr[sIx++]] << (18 - j * 6);
for (int r = 16; d < len; r -= 8)
dArr[d++] = (byte) (i >> r);
}
return dArr;
}
// ****************************************************************************************
// * String version
// ****************************************************************************************
/** Encodes a raw byte array into a BASE64 <code>String</code> representation i accordance with RFC 2045.
* @param sArr The bytes to convert. If <code>null</code> or length 0 an empty array will be returned.
* @param lineSep Optional "\r\n" after 76 characters, unless end of file.<br>
* No line separator will be in breach of RFC 2045 which specifies max 76 per line but will be a
* little faster.
* @return A BASE64 encoded array. Never <code>null</code>.
*/
public final static String encodeToString(byte[] sArr, boolean lineSep)
{
// Reuse char[] since we can't create a String incrementally anyway and StringBuffer/Builder would be slower.
return new String(encodeToChar(sArr, lineSep));
}
/** Decodes a BASE64 encoded <code>String</code>. All illegal characters will be ignored and can handle both strings with
* and without line separators.<br>
* <b>Note!</b> It can be up to about 2x the speed to call <code>decode(str.toCharArray())</code> instead. That
* will create a temporary array though. This version will use <code>str.charAt(i)</code> to iterate the string.
* @param str The source string. <code>null</code> or length 0 will return an empty array.
* @return The decoded array of bytes. May be of length 0. Will be <code>null</code> if the legal characters
* (including '=') isn't divideable by 4. (I.e. definitely corrupted).
*/
public final static byte[] decode(String str)
{
// Check special case
int sLen = str != null ? str.length() : 0;
if (sLen == 0)
return new byte[0];
// Count illegal characters (including '\r', '\n') to know what size the returned array will be,
// so we don't have to reallocate & copy it later.
int sepCnt = 0; // Number of separator characters. (Actually illegal characters, but that's a bonus...)
for (int i = 0; i < sLen; i++) // If input is "pure" (I.e. no line separators or illegal chars) base64 this loop can be commented out.
if (IA[str.charAt(i)] < 0)
sepCnt++;
// Check so that legal chars (including '=') are evenly divideable by 4 as specified in RFC 2045.
if ((sLen - sepCnt) % 4 != 0)
return null;
// Count '=' at end
int pad = 0;
for (int i = sLen; i > 1 && IA[str.charAt(--i)] <= 0;)
if (str.charAt(i) == '=')
pad++;
int len = ((sLen - sepCnt) * 6 >> 3) - pad;
byte[] dArr = new byte[len]; // Preallocate byte[] of exact length
for (int s = 0, d = 0; d < len;) {
// Assemble three bytes into an int from four "valid" characters.
int i = 0;
for (int j = 0; j < 4; j++) { // j only increased if a valid char was found.
int c = IA[str.charAt(s++)];
if (c >= 0)
i |= c << (18 - j * 6);
else
j--;
}
// Add the bytes
dArr[d++] = (byte) (i >> 16);
if (d < len) {
dArr[d++]= (byte) (i >> 8);
if (d < len)
dArr[d++] = (byte) i;
}
}
return dArr;
}
/** Decodes a BASE64 encoded string that is known to be resonably well formatted. The method is about twice as
* fast as {@link #decode(String)}. The preconditions are:<br>
* + The array must have a line length of 76 chars OR no line separators at all (one line).<br>
* + Line separator must be "\r\n", as specified in RFC 2045
* + The array must not contain illegal characters within the encoded string<br>
* + The array CAN have illegal characters at the beginning and end, those will be dealt with appropriately.<br>
* @param s The source string. Length 0 will return an empty array. <code>null</code> will throw an exception.
* @return The decoded array of bytes. May be of length 0.
*/
public final static byte[] decodeFast(String s)
{
// Check special case
int sLen = s.length();
if (sLen == 0)
return new byte[0];
int sIx = 0, eIx = sLen - 1; // Start and end index after trimming.
// Trim illegal chars from start
while (sIx < eIx && IA[s.charAt(sIx) & 0xff] < 0)
sIx++;
// Trim illegal chars from end
while (eIx > 0 && IA[s.charAt(eIx) & 0xff] < 0)
eIx--;
// get the padding count (=) (0, 1 or 2)
int pad = s.charAt(eIx) == '=' ? (s.charAt(eIx - 1) == '=' ? 2 : 1) : 0; // Count '=' at end.
int cCnt = eIx - sIx + 1; // Content count including possible separators
int sepCnt = sLen > 76 ? (s.charAt(76) == '\r' ? cCnt / 78 : 0) << 1 : 0;
int len = ((cCnt - sepCnt) * 6 >> 3) - pad; // The number of decoded bytes
byte[] dArr = new byte[len]; // Preallocate byte[] of exact length
// Decode all but the last 0 - 2 bytes.
int d = 0;
for (int cc = 0, eLen = (len / 3) * 3; d < eLen;) {
// Assemble three bytes into an int from four "valid" characters.
int i = IA[s.charAt(sIx++)] << 18 | IA[s.charAt(sIx++)] << 12 | IA[s.charAt(sIx++)] << 6 | IA[s.charAt(sIx++)];
// Add the bytes
dArr[d++] = (byte) (i >> 16);
dArr[d++] = (byte) (i >> 8);
dArr[d++] = (byte) i;
// If line separator, jump over it.
if (sepCnt > 0 && ++cc == 19) {
sIx += 2;
cc = 0;
}
}
if (d < len) {
// Decode last 1-3 bytes (incl '=') into 1-3 bytes
int i = 0;
for (int j = 0; sIx <= eIx - pad; j++)
i |= IA[s.charAt(sIx++)] << (18 - j * 6);
for (int r = 16; d < len; r -= 8)
dArr[d++] = (byte) (i >> r);
}
return dArr;
}
}

@ -0,0 +1,335 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.rosbridge.implementation;
import com.jilk.ros.message.Message;
import com.jilk.ros.rosbridge.indication.Indication;
import com.jilk.ros.rosbridge.operation.Wrapper;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import java.io.StringReader;
import java.lang.reflect.Array;
import java.lang.reflect.Field;
// The slightly crazy abstractions here are designed to isolate knowledge of
// the JSON library and data types from the Operation details of rosbridge.
// Why is this important? A few reasons I can see. First, we might want
// to change JSON libraries and this encapsulates all use of JSON-simple.
// Second, as much as possible I would like the semantics of the rosbridge
// protocol to be encapsulated in the Operation and its subclasses rather
// than in a module that is essentially about serialization.
//
// Unfortunately the hierarchical Message abstraction is a bit broken
// at the top level. Beginning at the actual operation (e.g., Publish), the
// types of the fields are determined either by the fields themselves or by
// an indicator. However, the type of the operation itself is not determined
// this way, because the indicator is in the object itself, which means it
// would have to be created before its type is known. Rather than build in
// exceptions, I elected to create a "Wrapper" operation type that simply
// wraps the concrete operation and copies its "op" field.
//
public class JSON {
/**
* Translates a Message recursively into JSON. Normally the Message is also an
* Operation, but it does not have to be. The caller constructs a complete
* message using @Operation and @Message types. This includes situations
* where one or more fields are marked to be turned into arrays, using @AsArray.
* @param m the @Message object to be recursively translated.
* @return the complete JSON string.
*/
public static String toJSON(Message m) {
JSONObject jo = convertObjectToJSONObject(m); // Object to JSON-Simple
return jo.toJSONString(); // JSON-Simple to string
}
/**
* Translates JSON into a hierarchical Operation/Message structure.
* This includes handling fields that are @Indicated and @AsArray. If the
* @Class parameter is a @Wrapper, this is a special case whereby the
* object is wrapped to create a consistent hierarchy.
* @param json the source JSON string
* @param c the top level class of the JSON. Normally @Wrapper
* @param r the @Registry containing topic registrations
* @return the fully instantiated message hierarchy represented
* by the JSON string.
*/
public static Message toMessage(String json, Class c, Registry<Class> r) {
JSONObject joUnwrapped = convertStringToJSONObject(json); // String to JSON-Simple
JSONObject jo = joUnwrapped;
if (Wrapper.class.isAssignableFrom(c))
jo = wrap(joUnwrapped, c); // wrap: a hack to make the hierarchy homogeneous
return convertJSONObjectToMessage(jo, c, r); // JSON-Simple to Message
}
// *** Create JSON from Messages *** //
// Translate the object into a JSON-Simple object, field-by-field,
// recursively via convertElementToJSON.
// except for the case where AsArray is indicated
private static JSONObject convertObjectToJSONObject(Object o) {
JSONObject result = new JSONObject();
for (Field f : o.getClass().getFields()) {
Object fieldObject = getFieldObject(f, o);
if (fieldObject != null) {
Object resultObject;
if (Indication.isBase64Encoded(f))
resultObject = convertByteArrayToBase64JSONString(fieldObject);
else if (Indication.asArray(f))
resultObject = convertObjectToJSONArray(fieldObject);
else resultObject = convertElementToJSON(fieldObject);
result.put(f.getName(), resultObject);
}
}
return result;
}
// Convert an array type to a JSON-Simple array, element-by-element,
// recursively via convertElementToJSON.
private static JSONArray convertArrayToJSONArray(Object array) {
JSONArray result = new JSONArray();
for (int i = 0; i < Array.getLength(array); i++) {
Object elementObject = Array.get(array, i);
if (elementObject != null) {
Object resultObject = convertElementToJSON(elementObject);
result.add(resultObject);
}
}
return result;
}
// For AsArray objects, convert the object to a JSON-Simple array
// NOTE: This relies on later versions of the JDK providing
// the fields in order.
private static JSONArray convertObjectToJSONArray(Object o) {
JSONArray result = new JSONArray();
for (Field f : o.getClass().getFields()) {
Object fieldObject = getFieldObject(f, o);
if (fieldObject != null) {
Object resultObject = convertElementToJSON(fieldObject);
result.add(resultObject);
}
}
return result;
}
// Convert the individual field or array element items recursively
private static Object convertElementToJSON(Object elementObject) {
Class elementClass = elementObject.getClass();
Object resultObject;
if (Message.isPrimitive(elementClass))
resultObject = elementObject;
else if (elementClass.isArray())
resultObject = convertArrayToJSONArray(elementObject);
else
resultObject = convertObjectToJSONObject(elementObject);
return resultObject;
}
// Special case for Base 64-encoded fields
private static Object convertByteArrayToBase64JSONString(Object fieldObject) {
return Base64.encodeToString((byte[]) fieldObject, false);
}
// This is just to buffer the code from the exception. Better error
// handling needed here.
private static Object getFieldObject(Field f, Object o) {
Object fo = null;
try {
fo = f.get(o);
}
catch (IllegalAccessException ex) {
ex.printStackTrace();
}
return fo;
}
// *** Create Messages from JSON *** //
// Use the JSON-simple parser to create the JSON-Simple object
private static JSONObject convertStringToJSONObject(String json) {
JSONObject result = null;
StringReader r = new StringReader(json);
JSONParser jp = new JSONParser();
try {
result = (JSONObject) jp.parse(r);
}
catch (Throwable t) {
System.out.println(t.getMessage());
}
r.close();
return result;
}
// A bit of a hack to create a consistent hierarchy with jsonbridge operations
// At least it does not depend on any specific field names, it just copies the
// Indicator and Indicated fields.
private static JSONObject wrap(JSONObject jo, Class c) {
JSONObject result = new JSONObject();
String indicatorName = Indication.getIndicatorName(c);
String indicatedName = Indication.getIndicatedName(c);
result.put(indicatorName, jo.get(indicatorName));
result.put(indicatedName, jo);
return result;
}
// Convert the JSON-Simple object to the indicated message, field-by-field
// recursively via convertElementToField.
private static Message convertJSONObjectToMessage(JSONObject jo, Class c, Registry<Class> r) {
//System.out.println("JSON.convertJSONObjectToMessage: " + jo.toJSONString());
try {
Message result = (Message) c.newInstance();
for (Field f : c.getFields()) {
Class fc = getFieldClass(result, jo, f, r);
Object lookup = jo.get(f.getName());
if (lookup != null) {
Object value = convertElementToField(lookup, fc, f, r);
f.set(result, value);
}
}
return result;
}
catch (Exception ex) {
//ex.printStackTrace();
return null;
}
}
// Convert the JSON-Simple array to the indicated message, element-by-element
// recursively via convertElementToField.
private static Object convertJSONArrayToArray(JSONArray ja, Class c, Registry<Class> r) {
Object result = Array.newInstance(c, ja.size());
for (int i = 0; i < ja.size(); i++) {
Object lookup = ja.get(i);
Object value = null;
if (lookup != null) {
if (lookup.getClass().equals(JSONObject.class))
value = convertJSONObjectToMessage((JSONObject) lookup, c, r);
else if (lookup.getClass().equals(JSONArray.class)) // this is not actually allowed in ROS
value = convertJSONArrayToArray((JSONArray) lookup, c.getComponentType(), r);
else
value = convertJSONPrimitiveToPrimitive(lookup, c);
Array.set(result, i, value);
}
}
return result;
}
// Convert a JSON-Simple array to a Message, field-by-field of the Message,
// element-by-element of the array, recursively via convertElementToField.
// NOTE: This relies on later versions of the JDK providing
// the fields in order.
private static Message convertJSONArrayToMessage(JSONArray ja, Class c, Registry<Class> r) {
try {
Message result = (Message) c.newInstance();
int arrayIndex = 0;
for (Field f : c.getFields()) {
Class fc = getFieldClass(result, null, f, r);
Object lookup = ja.get(arrayIndex++); // yes we are assuming that the fields are delivered in order
if (lookup != null) {
Object value = convertElementToField(lookup, fc, f, r);
f.set(result, value);
}
}
return result;
}
catch (Exception ex) {
ex.printStackTrace();
return null;
}
}
// Convert an individual array or object element to a field in the Message,
// recursively, and applying AsArray if needed.
private static Object convertElementToField(Object element, Class fc, Field f, Registry<Class> r) {
//System.out.println("JSON.convertElementToField: " + f.getName() + " " + fc.getName());
Object value;
if (element.getClass().equals(JSONObject.class)) {
//System.out.println("JSON.convertElementToField: JSON Object " + ((JSONObject) element).toJSONString());
value = convertJSONObjectToMessage((JSONObject) element, fc, r);
}
else if (element.getClass().equals(JSONArray.class)) {
//System.out.println("JSON.convertElementToField: JSON Array " + ((JSONArray) element).toJSONString());
if (Indication.asArray(f))
value = convertJSONArrayToMessage((JSONArray) element, fc, r);
else value = convertJSONArrayToArray((JSONArray) element, fc, r);
}
else {
//System.out.println("JSON.convertElementToField: Primitive " + element);
if (Indication.isBase64Encoded(f))
value = convertBase64JSONStringToByteArray(element);
else value = convertJSONPrimitiveToPrimitive(element, fc);
}
return value;
}
// Note that this is not checking ranges
public static Object convertJSONPrimitiveToPrimitive(Object o, Class c) {
Object result = o;
if (c.isPrimitive() || Number.class.isAssignableFrom(c)) {
if (c.equals(double.class) || c.equals(Double.class))
result = new Double(((Number) o).doubleValue());
else if (c.equals(float.class) || c.equals(Float.class))
result = new Float(((Number) o).floatValue());
else if (c.equals(long.class) || c.equals(Long.class))
result = new Long(((Number) o).longValue());
else if (int.class.equals(c) || c.equals(Integer.class))
result = new Integer(((Number) o).intValue());
else if (c.equals(short.class) || c.equals(Short.class))
result = new Short(((Number) o).shortValue());
else if (c.equals(byte.class) || c.equals(Byte.class))
result = new Byte(((Number) o).byteValue());
}
return result;
}
public static byte[] convertBase64JSONStringToByteArray(Object element) {
return Base64.decode((String) element);
}
// Determine the target class of a field in the object or array, based
// directly on the field's type, or using the Indicator if applicable,
// The Indicator field only provides the topic/service, so we have to look
// up the Class in the registry.
public static Class getFieldClass(Message parent, JSONObject jo, Field f, Registry<Class> r) {
Class fc;
fc = f.getType();
if (fc.isArray())
fc = f.getType().getComponentType();
if (Indication.isIndicated(f) && (jo != null)) {
//fc = Indication.getIndication(parent,
// (String) jo.get(Indication.getIndicatorName(parent.getClass())));
fc = r.lookup(parent.getClass(),
(String) jo.get(Indication.getIndicatorName(parent.getClass())));
//System.out.println("JSON.getFieldClass: parent class " + parent.getClass().getName() +
// " Indicator: " + Indication.getIndicatorName(parent.getClass()) +
// " result: " + fc.getName());
}
return fc;
}
}

@ -0,0 +1,24 @@
package com.jilk.ros.rosbridge.implementation;
import com.jilk.ros.rosbridge.operation.Operation;
/**EventBus event entity,describe ros server response info
* Created by xxhong on 16-11-22.
*/
public class PublishEvent {
public String msg;
public String id;
public String name;
public String op;
public PublishEvent(Operation operation, String name, String content) {
if(operation != null) {
id = operation.id;
op = operation.op;
}
this.name = name;
msg = content;
}
}

@ -0,0 +1,202 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
* <p>
* This file is part of the Java ROSBridge Client.
* <p>
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* <p>
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* <p>
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*/
package com.jilk.ros.rosbridge.implementation;
import com.jilk.ros.ROSClient;
import com.jilk.ros.message.Message;
import com.jilk.ros.rosbridge.FullMessageHandler;
import com.jilk.ros.rosbridge.operation.Operation;
import com.jilk.ros.rosbridge.operation.Publish;
import com.jilk.ros.rosbridge.operation.ServiceResponse;
import org.java_websocket.client.WebSocketClient;
import org.java_websocket.framing.CloseFrame;
import org.java_websocket.handshake.ServerHandshake;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;
import java.lang.reflect.Field;
import java.net.Socket;
import java.net.URI;
import java.net.URISyntaxException;
import java.nio.channels.SocketChannel;
import de.greenrobot.event.EventBus;
public class ROSBridgeWebSocketClient extends WebSocketClient {
private Registry<Class> classes;
private Registry<FullMessageHandler> handlers;
private boolean debug;
private ROSClient.ConnectionStatusListener listener;
ROSBridgeWebSocketClient(URI serverURI) {
super(serverURI);
classes = new Registry<Class>();
handlers = new Registry<FullMessageHandler>();
Operation.initialize(classes); // note, this ensures that the Message Map is initialized too
listener = null;
}
public static ROSBridgeWebSocketClient create(String URIString) {
ROSBridgeWebSocketClient client = null;
try {
URI uri = new URI(URIString);
client = new ROSBridgeWebSocketClient(uri);
} catch (URISyntaxException ex) {
ex.printStackTrace();
}
return client;
}
public void setListener(ROSClient.ConnectionStatusListener listener) {
this.listener = listener;
}
@Override
public void onOpen(ServerHandshake handshakedata) {
if (listener != null)
listener.onConnect();
}
@Override
public void onMessage(String message) {
if (debug) System.out.println("<ROS " + message);
//System.out.println("ROSBridgeWebSocketClient.onMessage (message): " + message);
Operation operation = Operation.toOperation(message, classes);
//System.out.println("ROSBridgeWebSocketClient.onMessage (operation): ");
//operation.print();
FullMessageHandler handler = null;
Message msg = null;
if (operation instanceof Publish) {
Publish p = (Publish) operation;
handler = handlers.lookup(Publish.class, p.topic);
msg = p.msg;
} else if (operation instanceof ServiceResponse) {
ServiceResponse r = ((ServiceResponse) operation);
handler = handlers.lookup(ServiceResponse.class, r.service);
msg = r.values;
}
// later we will add clauses for Fragment, PNG, and Status. When rosbridge has it, we'll have one for service requests.
// need to handle "result: null" possibility for ROSBridge service responses
// this is probably some sort of call to the operation for "validation." Do it
// as part of error handling.
if (handler != null && message.contains("\"id\":"))
handler.onMessage(operation.id, msg);
else {
if (debug)
System.out.print("No handler: id# " + operation.id + ", op:" + operation.op);
if (operation instanceof Publish) {
Publish publish = ((Publish) operation);
JSONParser jsonParser = new JSONParser();
try {
JSONObject jsonObject = (JSONObject) jsonParser.parse(message);
String content = jsonObject.get("msg").toString();
EventBus.getDefault().post(new PublishEvent(operation, publish.topic, content));
} catch (ParseException e) {
e.printStackTrace();
}
System.out.println("Publish " + publish.topic);
} else if (operation instanceof ServiceResponse) {
ServiceResponse serviceResponse = ((ServiceResponse) operation);
JSONParser jsonParser = new JSONParser();
try {
JSONObject jsonObject = (JSONObject) jsonParser.parse(message);
String content = jsonObject.get("values").toString();
System.out.println(content);
EventBus.getDefault().post(new PublishEvent(operation, serviceResponse.service, content));
} catch (ParseException e) {
e.printStackTrace();
}
System.out.println("Service Response " + serviceResponse.service);
}
}
}
@Override
public void onClose(int code, String reason, boolean remote) {
if (listener != null) {
boolean normal = (remote || (code == CloseFrame.NORMAL));
listener.onDisconnect(normal, reason, code);
}
}
@Override
public void onError(Exception ex) {
if (listener != null)
listener.onError(ex);
else ex.printStackTrace();
}
// There is a bug in V1.2 of java_websockets that seems to appear only in Android, specifically,
// it does not shut down the thread and starts using gobs of RAM (symptom is frequent garbage collection).
// This method goes into the WebSocketClient object and hard-closes the socket, which causes the thread
// to exit (note, just interrupting the thread does not work).
@Override
public void closeBlocking() throws InterruptedException {
super.closeBlocking();
try {
Field channelField = this.getClass().getSuperclass().getDeclaredField("channel");
channelField.setAccessible(true);
SocketChannel channel = (SocketChannel) channelField.get(this);
if (channel != null && channel.isOpen()) {
Socket socket = channel.socket();
if (socket != null)
socket.close();
}
} catch (Exception ex) {
System.out.println("Exception in Websocket close hack.");
ex.printStackTrace();
}
}
public void send(Operation operation) {
String json = operation.toJSON();
if (debug) System.out.println("ROS> " + json);
send(json);
}
public void register(Class<? extends Operation> c,
String s,
Class<? extends Message> m,
FullMessageHandler h) {
Message.register(m, classes.get(Message.class));
classes.register(c, s, m);
if (h != null)
handlers.register(c, s, h);
}
public void unregister(Class<? extends Operation> c, String s) {
handlers.unregister(c, s);
// Note that there is no concept of unregistering a class - it can get replaced is all
}
public Class<? extends Message> getRegisteredMessage(String messageString) {
return classes.lookup(Message.class, messageString);
}
public void setDebug(boolean debug) {
this.debug = debug;
}
}

@ -0,0 +1,49 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.rosbridge.implementation;
import java.util.HashMap;
import java.util.Map;
public class Registry<T> extends HashMap<Class, Map<String, T>> {
public void register(Class c, String s, T t) {
Map<String, T> table = get(c);
if (table == null) {
table = new HashMap<String, T>();
put(c, table);
}
table.put(s, t);
}
public void unregister(Class c, String s) {
Map<String, T> table = get(c);
if (table != null)
table.remove(s);
}
public T lookup(Class c, String s) {
T result = null;
Map<String, T> table = get(c);
if (table != null)
result = table.get(s);
return result;
}
}

@ -0,0 +1,30 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.rosbridge.indication;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.FIELD)
public @interface AsArray {
}

@ -0,0 +1,30 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.rosbridge.indication;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.FIELD)
public @interface Base64Encoded {
}

@ -0,0 +1,31 @@
/**
* Copyright (c) 2014 Jilk Systems, Inc.
*
* This file is part of the Java ROSBridge Client.
*
* The Java ROSBridge Client is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Java ROSBridge Client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Java ROSBridge Client. If not, see http://www.gnu.org/licenses/.
*
*/
package com.jilk.ros.rosbridge.indication;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface Indicate {
// if later we want multiple indicated fields, use an int here
}

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