diff --git a/doc/实践模板-开源软件泛读、标注和维护报告文档.docx b/doc/实践模板-开源软件泛读、标注和维护报告文档.docx index 9a1bf8a..b92fb35 100644 Binary files a/doc/实践模板-开源软件泛读、标注和维护报告文档.docx and b/doc/实践模板-开源软件泛读、标注和维护报告文档.docx differ diff --git a/src/Notes2/src/net/micode/notes/gtask/remote/GTaskClient.java b/src/Notes2/src/net/micode/notes/gtask/remote/GTaskClient.java new file mode 100644 index 0000000..f317ad5 --- /dev/null +++ b/src/Notes2/src/net/micode/notes/gtask/remote/GTaskClient.java @@ -0,0 +1,633 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.micode.notes.gtask.remote; + +import android.accounts.Account; +import android.accounts.AccountManager; +import android.accounts.AccountManagerFuture; +import android.app.Activity; +import android.os.Bundle; +import android.text.TextUtils; +import android.util.Log; + +import net.micode.notes.gtask.data.Node; +import net.micode.notes.gtask.data.Task; +import net.micode.notes.gtask.data.TaskList; +import net.micode.notes.gtask.exception.ActionFailureException; +import net.micode.notes.gtask.exception.NetworkFailureException; +import net.micode.notes.tool.GTaskStringUtils; +import net.micode.notes.ui.NotesPreferenceActivity; + +import org.apache.http.HttpEntity; +import org.apache.http.HttpResponse; +import org.apache.http.client.ClientProtocolException; +import org.apache.http.client.entity.UrlEncodedFormEntity; +import org.apache.http.client.methods.HttpGet; +import org.apache.http.client.methods.HttpPost; +import org.apache.http.cookie.Cookie; +import org.apache.http.impl.client.BasicCookieStore; +import org.apache.http.impl.client.DefaultHttpClient; +import org.apache.http.message.BasicNameValuePair; +import org.apache.http.params.BasicHttpParams; +import org.apache.http.params.HttpConnectionParams; +import org.apache.http.params.HttpParams; +import org.apache.http.params.HttpProtocolParams; +import org.json.JSONArray; +import org.json.JSONException; +import org.json.JSONObject; + +import java.io.BufferedReader; +import java.io.IOException; +import java.io.InputStream; +import java.io.InputStreamReader; +import java.util.LinkedList; +import java.util.List; +import java.util.zip.GZIPInputStream; +import java.util.zip.Inflater; +import java.util.zip.InflaterInputStream; + +//标明了这个类的名字 +public class GTaskClient { + private static final String TAG = GTaskClient.class.getSimpleName(); //私有化一个用于日志输出的标签常量 + + private static final String GTASK_URL = "https://mail.google.com/tasks/"; //私有化Google Tasks 的基本 URL 地址 + + private static final String GTASK_GET_URL = "https://mail.google.com/tasks/ig";//私有化获取任务的 URL 地址 + + private static final String GTASK_POST_URL = "https://mail.google.com/tasks/r/ig";//私有化提交任务的 URL 地址 + + private static GTaskClient mInstance = null; //mInstance 是 GTaskClient 类的单例实例 + + private DefaultHttpClient mHttpClient;//mHttpClient 是一个 DefaultHttpClient 对象,用于发送 HTTP 请求 + + private String mGetUrl; //mGetUrl 和 mPostUrl 是用于存储获取任务和提交任务的 URL 地址 + + private String mPostUrl;//mGetUrl 和 mPostUrl 是用于存储获取任务和提交任务的 URL 地址 + + private long mClientVersion;//私有化客户端版本的长整型变量 + + private boolean mLoggedin;//表示是否已登录的布尔型变量 + + private long mLastLoginTime;//上次登录时间的长整型变量 + + private int mActionId;//表示当前操作的整型变量 + + private Account mAccount;//一个 Account 对象,用于存储用户账号信息 + + private JSONArray mUpdateArray;//一个 JSONArray 对象,用于存储任务更新信息 + + + //GTaskClient 类的一个私有构造方法,使用 private 关键字修饰,表示只能在类内部调用 + private GTaskClient() { + mHttpClient = null; //初始化为null + mGetUrl = GTASK_GET_URL; + mPostUrl = GTASK_POST_URL; + mClientVersion = -1; + mLoggedin = false; + mLastLoginTime = 0; + mActionId = 1; + mAccount = null; + mUpdateArray = null; + } + + //用来获取的实例化对象 + public static synchronized GTaskClient getInstance() { //使用 public 关键字修饰,表示可以从任何地方访问 + if (mInstance == null) { //首先判断 mInstance 是否为 null,即判断是否已经存在单例实例 + mInstance = new GTaskClient();//如果 mInstance 为 null,则创建一个新的 GTaskClient 实例,并赋值给 mInstance + } + return mInstance; //返回mInstance这个实例化对象 + } + + //用来实现登录操作的函数,传入的参数是一个Activity + public boolean login(Activity activity) { + // we suppose that the cookie would expire after 5 minutes + // then we need to re-login + // 设置登录操作限制时间,如果超时则需要重新登录 + final long interval = 1000 * 60 * 5; // 判断距离最后一次登录操作是否超过5分钟 + if (mLastLoginTime + interval < System.currentTimeMillis()) { // 判断上次登录时间加上限制时间是否小于当前系统时间 + mLoggedin = false; // 如果超时了,设置登录状态为未登录 + } + + // need to re-login after account switch + //重新登录操作 + if (mLoggedin && !TextUtils.equals(getSyncAccount().name, NotesPreferenceActivity.getSyncAccountName(activity))) { // 如果已经登录且同步账户名称发生变化 + mLoggedin = false; // 设置登录状态为未登录 + } + + //如果没超过时间,则不需要重新登录 + if (mLoggedin) { // 如果已经登录 + Log.d(TAG, "already logged in"); // 打印日志,表示已经登录 + return true; // 返回已经登录的状态 + } + + mLastLoginTime = System.currentTimeMillis(); // 更新最后登录时间为当前系统时间 + String authToken = loginGoogleAccount(activity, false); // 尝试使用谷歌账户登录,获取授权令牌 + if (authToken == null) { // 如果获取的授权令牌为空 + Log.e(TAG, "login google account failed"); // 打印错误日志,表示谷歌账户登录失败 + return false; // 返回登录失败的状态 + } + + // login with custom domain if necessary + //尝试使用用户自己的域名登录 + if (!(mAccount.name.toLowerCase().endsWith("gmail.com") || mAccount.name.toLowerCase().endsWith("googlemail.com"))) { // 如果用户账户不是以gmail.com或googlemail.com结尾 + StringBuilder url = new StringBuilder(GTASK_URL).append("a/"); // 构建自定义域名的URL + int index = mAccount.name.indexOf('@') + 1; // 获取@符号后的索引位置 + String suffix = mAccount.name.substring(index); // 获取@符号后的字符串作为域名后缀 + url.append(suffix + "/"); // 拼接域名后缀到URL + mGetUrl = url.toString() + "ig"; // 设置用户对应的getUrl + mPostUrl = url.toString() + "r/ig"; // 设置用户对应的postUrl + + if (tryToLoginGtask(activity, authToken)) { // 尝试使用自定义域名登录 + mLoggedin = true; // 设置登录状态为已登录 + } + } + + // try to login with google official URL + //如果用户账户无法登录,则使用谷歌官方的URI进行登录 + if (!mLoggedin) { // 如果之前的登录尝试未成功 + mGetUrl = GTASK_GET_URL; // 设置使用谷歌官方URL进行get请求 + mPostUrl = GTASK_POST_URL; // 设置使用谷歌官方URL进行post请求 + if (!tryToLoginGtask(activity, authToken)) { // 尝试使用谷歌官方的URL进行登录 + return false; // 如果登录失败,返回登录失败状态 + } + } + + mLoggedin = true; // 设置登录状态为已登录 + return true; // 返回登录成功的状态 + } + + + //具体实现登录谷歌账户的方法 + private String loginGoogleAccount(Activity activity, boolean invalidateToken) { + String authToken; // 定义一个用于存储认证令牌的变量 + + AccountManager accountManager = AccountManager.get(activity); // 获取账户管理器实例,用于管理用户账户信息 + + Account[] accounts = accountManager.getAccountsByType("com.google"); // 获取所有类型为"com.google"的账户列表 + + if (accounts.length == 0) { // 如果没有找到Google账户 + Log.e(TAG, "there is no available google account"); // 记录错误日志,表示没有可用的Google账户 + return null; // 返回空值 + } + + String accountName = NotesPreferenceActivity.getSyncAccountName(activity); // 获取同步账户的名称 + + Account account = null; + for (Account a : accounts) { // 遍历查找已记录的账户信息 + if (a.name.equals(accountName)) { // 如果找到了同名的账户 + account = a; // 将找到的账户赋给account变量 + break; // 跳出循环 + } + } + if (account != null) { // 如果找到了匹配的账户 + mAccount = account; // 将匹配的账户信息存储在mAccount中 + } else { + Log.e(TAG, "unable to get an account with the same name in the settings"); // 记录错误日志,表示无法获取相同名称的账户 + return null; // 返回空值 + } + + // get the token now + // 获取认证令牌 + AccountManagerFuture accountManagerFuture = accountManager.getAuthToken(account, "goanna_mobile", null, activity, null, null); // 异步获取指定账户的认证令牌 + try { + Bundle authTokenBundle = accountManagerFuture.getResult(); // 获取异步操作的结果 + authToken = authTokenBundle.getString(AccountManager.KEY_AUTHTOKEN); // 从结果中获取认证令牌 + + // 如果需要废除认证令牌 + if (invalidateToken) { + accountManager.invalidateAuthToken("com.google", authToken); // 废除认证令牌 + loginGoogleAccount(activity, false); // 重新调用登录方法 + } + } catch (Exception e) { + Log.e(TAG, "get auth token failed"); // 记录获取认证令牌失败的错误日志 + authToken = null; // 将认证令牌置为空 + } + + return authToken; // 返回获取到的认证令牌 + } + + + //尝试登陆Gtask,这只是一个预先判断令牌是否是有效以及是否能登上GTask的方法,而不是具体实现登陆的方法 + private boolean tryToLoginGtask(Activity activity, String authToken) { + if (!loginGtask(authToken)) { + // maybe the auth token is out of date, now let's invalidate the + // token and try again + //删除过一个无效的authToken,申请一个新的后再次尝试登陆 + authToken = loginGoogleAccount(activity, true); + if (authToken == null) { + Log.e(TAG, "login google account failed"); + return false; + } + + if (!loginGtask(authToken)) { + Log.e(TAG, "login gtask failed"); + return false; + } + } + return true; + } + + //实现登录GTask的具体操作 + private boolean loginGtask(String authToken) { + int timeoutConnection = 10000; + int timeoutSocket = 15000; //socket是一种通信连接实现数据的交换的端口 + HttpParams httpParameters = new BasicHttpParams(); //实例化一个新的HTTP参数类 + HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection); //设置连接超时时间 + HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket); //设置设置端口超时时间 + mHttpClient = new DefaultHttpClient(httpParameters); + BasicCookieStore localBasicCookieStore = new BasicCookieStore(); //设置本地cookie + mHttpClient.setCookieStore(localBasicCookieStore); + HttpProtocolParams.setUseExpectContinue(mHttpClient.getParams(), false); + + // login gtask + try { + String loginUrl = mGetUrl + "?auth=" + authToken; //设置登录的url + HttpGet httpGet = new HttpGet(loginUrl); //通过登录的uri实例化网页上资源的查找 + HttpResponse response = null; + response = mHttpClient.execute(httpGet); + + //获取CookieStore里存放的cookie + // get the cookie now + List cookies = mHttpClient.getCookieStore().getCookies(); + boolean hasAuthCookie = false; + for (Cookie cookie : cookies) { //看如果存有“GTL”,则说明有验证成功的有效的cookie + if (cookie.getName().contains("GTL")) { + hasAuthCookie = true; + } + } + if (!hasAuthCookie) { + Log.w(TAG, "it seems that there is no auth cookie"); + } + + // get the client version + //获取client的内容 + String resString = getResponseContent(response.getEntity()); + String jsBegin = "_setup("; + String jsEnd = ")}"; + int begin = resString.indexOf(jsBegin); + int end = resString.lastIndexOf(jsEnd); + String jsString = null; + if (begin != -1 && end != -1 && begin < end) { //if循环用来在返回的Content中截取从_setup(开始到)}中间的字符串内容,也就是gtask_url的内容 + jsString = resString.substring(begin + jsBegin.length(), end); + } + JSONObject js = new JSONObject(jsString); + mClientVersion = js.getLong("v"); + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + return false; + } catch (Exception e) { + // simply catch all exceptions + Log.e(TAG, "httpget gtask_url failed"); + return false; + } + + return true; + } + + private int getActionId() { + return mActionId++; + } + + //实例化创建一个用于向网络传输数据的对象 + private HttpPost createHttpPost() { + HttpPost httpPost = new HttpPost(mPostUrl); + httpPost.setHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8"); + httpPost.setHeader("AT", "1"); + return httpPost; //返回一个空的httpPost实例化对象 + } + + //通过URL获取响应后返回的数据 + private String getResponseContent(HttpEntity entity) throws IOException { + String contentEncoding = null; + if (entity.getContentEncoding() != null) { //使用getContentEncoding()获取网络上的资源和数据 + contentEncoding = entity.getContentEncoding().getValue(); + Log.d(TAG, "encoding: " + contentEncoding); + } + + InputStream input = entity.getContent(); + if (contentEncoding != null && contentEncoding.equalsIgnoreCase("gzip")) { //GZIP是使用DEFLATE进行压缩数据的另一个压缩库 + input = new GZIPInputStream(entity.getContent()); + } else if (contentEncoding != null && contentEncoding.equalsIgnoreCase("deflate")) { //DEFLATE是一个无专利的压缩算法,它可以实现无损数据压缩 + Inflater inflater = new Inflater(true); + input = new InflaterInputStream(entity.getContent(), inflater); + } + + try { + InputStreamReader isr = new InputStreamReader(input); + BufferedReader br = new BufferedReader(isr); //是一个包装类,它可以包装字符流,将字符流放入缓存里,先把字符读到缓存里,到缓存满了时候,再读入内存,是为了提供读的效率而设计的 + StringBuilder sb = new StringBuilder(); + + while (true) { + String buff = br.readLine(); + if (buff == null) { + return sb.toString(); + } + sb = sb.append(buff); + } + } finally { + input.close(); + } + } + + //通过JSON发送请求 + //请求的具体内容在json的实例化对象js中然后传入 + private JSONObject postRequest(JSONObject js) throws NetworkFailureException { + if (!mLoggedin) { + Log.e(TAG, "please login first"); + throw new ActionFailureException("not logged in"); + } + + //实例化一个httpPost的对象用来向服务器传输数据,在这里就是发送请求,而请求的内容在js里 + HttpPost httpPost = createHttpPost(); + try { + LinkedList list = new LinkedList(); + list.add(new BasicNameValuePair("r", js.toString())); + UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list, "UTF-8"); + httpPost.setEntity(entity); + + // execute the post + //执行这个请求 + HttpResponse response = mHttpClient.execute(httpPost); + String jsString = getResponseContent(response.getEntity()); + return new JSONObject(jsString); + + } catch (ClientProtocolException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new NetworkFailureException("postRequest failed"); + } catch (IOException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new NetworkFailureException("postRequest failed"); + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("unable to convert response content to jsonobject"); + } catch (Exception e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("error occurs when posting request"); + } + } + + //创建单个任务 + //传入参数是一个.gtask.data.Task包里Task类的对象 + public void createTask(Task task) throws NetworkFailureException { + commitUpdate(); + try { + + JSONObject jsPost = new JSONObject();//利用json获取Task里的内容,并且创建相应的jsPost + JSONArray actionList = new JSONArray(); + + // action_list + actionList.put(task.getCreateAction(getActionId())); + jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); + + // client_version + jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); + + // post + JSONObject jsResponse = postRequest(jsPost); + JSONObject jsResult = (JSONObject) jsResponse.getJSONArray( + GTaskStringUtils.GTASK_JSON_RESULTS).get(0); + task.setGid(jsResult.getString(GTaskStringUtils.GTASK_JSON_NEW_ID)); //使用task.setGid设置task的new_ID + + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("create task: handing jsonobject failed"); + } + } + + //创建一个任务列表 + public void createTaskList(TaskList tasklist) throws NetworkFailureException { + commitUpdate(); + try { + JSONObject jsPost = new JSONObject(); + JSONArray actionList = new JSONArray(); + + // action_list + actionList.put(tasklist.getCreateAction(getActionId())); + jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); + + // client version + jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); + + // post + JSONObject jsResponse = postRequest(jsPost); + JSONObject jsResult = (JSONObject) jsResponse.getJSONArray( + GTaskStringUtils.GTASK_JSON_RESULTS).get(0); + tasklist.setGid(jsResult.getString(GTaskStringUtils.GTASK_JSON_NEW_ID)); + + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("create tasklist: handing jsonobject failed"); + } + } + + //同步更新操作 + public void commitUpdate() throws NetworkFailureException { + if (mUpdateArray != null) { + try { + JSONObject jsPost = new JSONObject(); //使用JSONObject进行数据存储 + + // action_list + jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, mUpdateArray); //使用jsPost.put,Put的信息包括UpdateArray和ClientVersion + + // client_version + jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); + + postRequest(jsPost); //使用postRequest发送这个jspost,进行处理 + mUpdateArray = null; + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("commit update: handing jsonobject failed"); + } + } + } + + //添加更新的事项 + public void addUpdateNode(Node node) throws NetworkFailureException { + if (node != null) { + // too many update items may result in an error + // set max to 10 items + if (mUpdateArray != null && mUpdateArray.length() > 10) { + commitUpdate(); //调用commitUpdate()来提交更新 + } + + if (mUpdateArray == null) + mUpdateArray = new JSONArray(); + mUpdateArray.put(node.getUpdateAction(getActionId())); + } + } + + //用来移动任务,它通过构建 JSON 对象和发送 POST 请求来实现任务的移动操作 + public void moveTask(Task task, TaskList preParent, TaskList curParent) + throws NetworkFailureException { + commitUpdate(); + try { + JSONObject jsPost = new JSONObject(); + JSONArray actionList = new JSONArray(); + JSONObject action = new JSONObject(); + + // action_list + //type——移动类型,ID——操作的 ID,GTASK_JSON_ID——要移动的任务的 ID + //SOURCE_LIST——要移动任务的原始父任务列表的 ID,DEST_PARENT——要移动任务的新父任务列表的 ID + action.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, + GTaskStringUtils.GTASK_JSON_ACTION_TYPE_MOVE); + action.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, getActionId()); + action.put(GTaskStringUtils.GTASK_JSON_ID, task.getGid()); + if (preParent == curParent && task.getPriorSibling() != null) { + // put prioring_sibing_id only if moving within the tasklist and + // it is not the first one + //设置优先级ID,只有当移动是发生在文件中 + action.put(GTaskStringUtils.GTASK_JSON_PRIOR_SIBLING_ID, task.getPriorSibling()); + } + action.put(GTaskStringUtils.GTASK_JSON_SOURCE_LIST, preParent.getGid());//设置移动前所属列表 + action.put(GTaskStringUtils.GTASK_JSON_DEST_PARENT, curParent.getGid());//设置当前所属列表 + if (preParent != curParent) { + // put the dest_list only if moving between tasklists + action.put(GTaskStringUtils.GTASK_JSON_DEST_LIST, curParent.getGid()); + } + actionList.put(action); + //最后将ACTION_LIST加入到jsPost中 + jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); + + // client_version + jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); + + postRequest(jsPost); + + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("move task: handing jsonobject failed"); + } + } + + //用来删除节点,它通过构建 JSON 对象和发送 POST 请求来实现节点的删除操作 + public void deleteNode(Node node) throws NetworkFailureException { + commitUpdate(); // 提交更新操作 + + try { + JSONObject jsPost = new JSONObject(); // 创建一个新的JSON对象,用于存储POST请求的参数 + JSONArray actionList = new JSONArray(); // 创建一个新的JSON数组,用于存储操作列表 + + // action_list + node.setDeleted(true); // 标志该节点已被删除 + actionList.put(node.getUpdateAction(getActionId())); // 将删除操作的ID加入到操作列表中 + jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); // 将操作列表加入到POST请求参数中 + + // client_version + jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); // 将客户端版本号加入到POST请求参数中 + + postRequest(jsPost); // 发送POST请求 + mUpdateArray = null; // 将更新数组置为空 + } catch (JSONException e) { // 捕获JSON异常 + Log.e(TAG, e.toString()); // 记录错误日志 + e.printStackTrace(); + throw new ActionFailureException("delete node: handing jsonobject failed"); // 抛出操作失败异常 + } + } + + + //获取任务列表 + public JSONArray getTaskLists() throws NetworkFailureException { + if (!mLoggedin) { // 如果未登录 + Log.e(TAG, "please login first"); // 记录错误日志 + throw new ActionFailureException("not logged in"); // 抛出操作失败异常 + } + + try { + HttpGet httpGet = new HttpGet(mGetUrl); // 创建一个HTTP GET请求对象 + HttpResponse response = null; // 定义一个HTTP响应对象 + + response = mHttpClient.execute(httpGet); // 执行HTTP GET请求,并将响应存储在response对象中 + + // get the task list + String resString = getResponseContent(response.getEntity()); // 从响应实体中获取响应内容 + String jsBegin = "_setup("; // 定义JS脚本开始标记 + String jsEnd = ")}"; // 定义JS脚本结束标记 + int begin = resString.indexOf(jsBegin); // 查找JS脚本开始标记的位置 + int end = resString.lastIndexOf(jsEnd); // 查找JS脚本结束标记的位置 + String jsString = null; + + // 如果找到了JS脚本开始和结束标记 + if (begin != -1 && end != -1 && begin < end) { + jsString = resString.substring(begin + jsBegin.length(), end); // 截取JS脚本字符串 + } + + JSONObject js = new JSONObject(jsString); // 创建一个新的JSON对象,用于解析JS脚本字符串 + return js.getJSONObject("t").getJSONArray(GTaskStringUtils.GTASK_JSON_LISTS); // 返回解析结果中的任务列表信息 + } catch (ClientProtocolException e) { // 捕获客户端协议异常 + Log.e(TAG, e.toString()); // 记录错误日志 + e.printStackTrace(); + throw new NetworkFailureException("gettasklists: httpget failed"); // 抛出网络操作失败异常 + } catch (IOException e) { // 捕获IO异常 + Log.e(TAG, e.toString()); // 记录错误日志 + e.printStackTrace(); + throw new NetworkFailureException("gettasklists: httpget failed"); // 抛出网络操作失败异常 + } catch (JSONException e) { // 捕获JSON异常 + Log.e(TAG, e.toString()); // 记录错误日志 + e.printStackTrace(); + throw new ActionFailureException("get task lists: handing jasonobject failed"); // 抛出操作失败异常 + } + } + + + //通过传入的TASKList的gid,从网络上获取相应属于这个任务列表的任务 + public JSONArray getTaskList(String listGid) throws NetworkFailureException { + commitUpdate(); + try { + JSONObject jsPost = new JSONObject();//创建一个新的 JSONObject jsPost 用于存储 POST 请求的数据。 + JSONArray actionList = new JSONArray();//创建一个新的 JSONArray actionList 用于存列表。 + JSONObject action = new JSONObject();//创建一个新的 JSONObject action 用于表示单个操作。 + + // action_list + action.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, + GTaskStringUtils.GTASK_JSON_ACTION_TYPE_GETALL); + action.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, getActionId());//这里设置为传入的listGid + action.put(GTaskStringUtils.GTASK_JSON_LIST_ID, listGid); + action.put(GTaskStringUtils.GTASK_JSON_GET_DELETED, false); + actionList.put(action); + jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); + + // client_version + jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); + + JSONObject jsResponse = postRequest(jsPost); + return jsResponse.getJSONArray(GTaskStringUtils.GTASK_JSON_TASKS); + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("get task list: handing jsonobject failed"); + } + } + + //用于获取同步账户信息 + public Account getSyncAccount() { + return mAccount; + } + + //重置更新内容 + public void resetUpdateArray() { + mUpdateArray = null; + } +}