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/*
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* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package net.micode.notes.gtask.remote;
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public class GTaskManager {
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private static final String TAG = GTaskManager.class.getSimpleName();
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public static final int STATE_SUCCESS = 0;
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public static final int STATE_NETWORK_ERROR = 1;
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public static final int STATE_INTERNAL_ERROR = 2;
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public static final int STATE_SYNC_IN_PROGRESS = 3;
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public static final int STATE_SYNC_CANCELLED = 4;
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private static GTaskManager mInstance = null;
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private Activity mActivity;
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private Context mContext;
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private ContentResolver mContentResolver;
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private boolean mSyncing;
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private boolean mCancelled;
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private HashMap<String, TaskList> mGTaskListHashMap;
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private HashMap<String, Node> mGTaskHashMap;
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private HashMap<String, MetaData> mMetaHashMap;
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private TaskList mMetaList;
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private HashSet<Long> mLocalDeleteIdMap;
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private HashMap<String, Long> mGidToNid;
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private HashMap<Long, String> mNidToGid;
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private GTaskManager() { //对象初始化函数
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mSyncing = false; //正在同步,flase代表未执行
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mCancelled = false; //全局标识，flase代表可以执行
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mGTaskListHashMap = new HashMap<String, TaskList>(); //<>代表Java的泛型,就是创建一个用类型作为参数的类。
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mGTaskHashMap = new HashMap<String, Node>();
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mMetaHashMap = new HashMap<String, MetaData>();
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mMetaList = null;
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mLocalDeleteIdMap = new HashSet<Long>();
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mGidToNid = new HashMap<String, Long>(); //GoogleID to NodeID??
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mNidToGid = new HashMap<Long, String>(); //NodeID to GoogleID???通过hashmap散列表建立映射
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}
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/**
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* 包含关键字synchronized，语言级同步，指明该函数可能运行在多线程的环境下。
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* 功能：类初始化函数
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* @author TTS
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* @return GtaskManger
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*/
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public static synchronized GTaskManager getInstance() { //可能运行在多线程环境下，使用语言级同步--synchronized
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if (mInstance == null) {
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mInstance = new GTaskManager();
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}
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return mInstance;
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}
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/**
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* 包含关键字synchronized，语言级同步，指明该函数可能运行在多线程的环境下。
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* @author TTS
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* @param activity
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*/
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public synchronized void setActivityContext(Activity activity) {
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// used for getting auth token
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mActivity = activity;
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}
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/**
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* 核心函数
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* 功能：实现了本地同步操作和远端同步操作
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* @author TTS
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* @param context-----获取上下文
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* @param asyncTask-------用于同步的异步操作类
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* @return int
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*/
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public int sync(Context context, GTaskASyncTask asyncTask) { //核心函数
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if (mSyncing) {
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Log.d(TAG, "Sync is in progress"); //创建日志文件（调试信息），debug
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return STATE_SYNC_IN_PROGRESS;
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}
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mContext = context;
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mContentResolver = mContext.getContentResolver();
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mSyncing = true;
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mCancelled = false;
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mGTaskListHashMap.clear();
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mGTaskHashMap.clear();
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mMetaHashMap.clear();
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mLocalDeleteIdMap.clear();
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mGidToNid.clear();
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mNidToGid.clear();
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try {
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GTaskClient client = GTaskClient.getInstance(); //getInstance即为创建一个实例,client--客户机
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client.resetUpdateArray(); //JSONArray类型，reset即置为NULL
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// login google task
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if (!mCancelled) {
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if (!client.login(mActivity)) {
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throw new NetworkFailureException("login google task failed");
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}
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}
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// get the task list from google
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asyncTask.publishProgess(mContext.getString(R.string.sync_progress_init_list));
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initGTaskList(); //获取Google上的JSONtasklist转为本地TaskList
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// do content sync work
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asyncTask.publishProgess(mContext.getString(R.string.sync_progress_syncing));
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syncContent();
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} catch (NetworkFailureException e) { //分为两种异常，此类异常为网络异常
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Log.e(TAG, e.toString()); //创建日志文件（调试信息），error
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return STATE_NETWORK_ERROR;
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} catch (ActionFailureException e) { //此类异常为操作异常
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Log.e(TAG, e.toString());
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return STATE_INTERNAL_ERROR;
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} catch (Exception e) {
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Log.e(TAG, e.toString());
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e.printStackTrace();
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return STATE_INTERNAL_ERROR;
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} finally {
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mGTaskListHashMap.clear();
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mGTaskHashMap.clear();
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mMetaHashMap.clear();
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mLocalDeleteIdMap.clear();
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mGidToNid.clear();
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mNidToGid.clear();
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mSyncing = false;
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}
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return mCancelled ? STATE_SYNC_CANCELLED : STATE_SUCCESS;
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}
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/**
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*功能：初始化GtaskList，获取Google上的JSONtasklist转为本地TaskList。
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*获得的数据存储在mMetaList，mGTaskListHashMap，mGTaskHashMap
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*@author TTS
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*@exception NetworkFailureException
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*@return void
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*/
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private void initGTaskList() throws NetworkFailureException {
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if (mCancelled)
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return;
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GTaskClient client = GTaskClient.getInstance(); //getInstance即为创建一个实例，client应指远端客户机
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try {
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//Json对象是Name Value对(即子元素)的无序集合，相当于一个Map对象。JsonObject类是bantouyan-json库对Json对象的抽象，提供操纵Json对象的各种方法。
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//其格式为{"key1":value1,"key2",value2....};key 必须是字符串。
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//因为ajax请求不刷新页面，但配合js可以实现局部刷新，因此json常常被用来作为异步请求的返回对象使用。
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JSONArray jsTaskLists = client.getTaskLists(); //原注释为get task list------lists？？？
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// init meta list first
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mMetaList = null; //TaskList类型
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for (int i = 0; i < jsTaskLists.length(); i++) {
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JSONObject object = jsTaskLists.getJSONObject(i); //JSONObject与JSONArray一个为对象，一个为数组。此处取出单个JASONObject
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String gid = object.getString(GTaskStringUtils.GTASK_JSON_ID);
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String name = object.getString(GTaskStringUtils.GTASK_JSON_NAME);
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if (name.equals(GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_META)) {
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mMetaList = new TaskList(); //MetaList意为元表,Tasklist类型，此处为初始化
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mMetaList.setContentByRemoteJSON(object); //将JSON中部分数据复制到自己定义的对象中相对应的数据：name->mname...
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// load meta data
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JSONArray jsMetas = client.getTaskList(gid); //原注释为get action_list------list？？？
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for (int j = 0; j < jsMetas.length(); j++) {
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object = (JSONObject) jsMetas.getJSONObject(j);
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MetaData metaData = new MetaData(); //继承自Node
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metaData.setContentByRemoteJSON(object);
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if (metaData.isWorthSaving()) { //if not worth to save，metadata将不加入mMetaList
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mMetaList.addChildTask(metaData);
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if (metaData.getGid() != null) {
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mMetaHashMap.put(metaData.getRelatedGid(), metaData);
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}
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}
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}
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}
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}
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// create meta list if not existed
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if (mMetaList == null) {
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mMetaList = new TaskList();
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mMetaList.setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX
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+ GTaskStringUtils.FOLDER_META);
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GTaskClient.getInstance().createTaskList(mMetaList);
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}
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// init task list
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for (int i = 0; i < jsTaskLists.length(); i++) {
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JSONObject object = jsTaskLists.getJSONObject(i);
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String gid = object.getString(GTaskStringUtils.GTASK_JSON_ID); //通过getString函数传入本地某个标志数据的名称，获取其在远端的名称。
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String name = object.getString(GTaskStringUtils.GTASK_JSON_NAME);
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if (name.startsWith(GTaskStringUtils.MIUI_FOLDER_PREFFIX)
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&& !name.equals(GTaskStringUtils.MIUI_FOLDER_PREFFIX
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+ GTaskStringUtils.FOLDER_META)) {
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TaskList tasklist = new TaskList(); //继承自Node
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tasklist.setContentByRemoteJSON(object);
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mGTaskListHashMap.put(gid, tasklist);
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mGTaskHashMap.put(gid, tasklist); //为什么加两遍？？？
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// load tasks
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JSONArray jsTasks = client.getTaskList(gid);
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for (int j = 0; j < jsTasks.length(); j++) {
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object = (JSONObject) jsTasks.getJSONObject(j);
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gid = object.getString(GTaskStringUtils.GTASK_JSON_ID);
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Task task = new Task();
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task.setContentByRemoteJSON(object);
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if (task.isWorthSaving()) {
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task.setMetaInfo(mMetaHashMap.get(gid));
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tasklist.addChildTask(task);
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mGTaskHashMap.put(gid, task);
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}
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}
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}
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}
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} catch (JSONException e) {
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Log.e(TAG, e.toString());
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e.printStackTrace();
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throw new ActionFailureException("initGTaskList: handing JSONObject failed");
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}
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}
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/**
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* 功能：本地内容同步操作
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* @throws NetworkFailureException
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* @return 无返回值
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*/
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private void syncContent() throws NetworkFailureException { //本地内容同步操作
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int syncType;
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Cursor c = null; //数据库指针
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String gid; //GoogleID??
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Node node; //Node包含Sync_Action的不同类型
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mLocalDeleteIdMap.clear(); //HashSet<Long>类型
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if (mCancelled) {
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return;
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}
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// for local deleted note
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try {
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c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE,
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"(type<>? AND parent_id=?)", new String[] {
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String.valueOf(Notes.TYPE_SYSTEM), String.valueOf(Notes.ID_TRASH_FOLER)
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}, null);
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if (c != null) {
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while (c.moveToNext()) {
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gid = c.getString(SqlNote.GTASK_ID_COLUMN);
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node = mGTaskHashMap.get(gid);
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if (node != null) {
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mGTaskHashMap.remove(gid);
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doContentSync(Node.SYNC_ACTION_DEL_REMOTE, node, c);
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}
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mLocalDeleteIdMap.add(c.getLong(SqlNote.ID_COLUMN));
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}
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} else {
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Log.w(TAG, "failed to query trash folder");
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}
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} finally {
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if (c != null) {
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c.close();
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c = null;
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}
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}
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// sync folder first
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syncFolder();
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// for note existing in database
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try {
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c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE,
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"(type=? AND parent_id<>?)", new String[] {
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String.valueOf(Notes.TYPE_NOTE), String.valueOf(Notes.ID_TRASH_FOLER)
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}, NoteColumns.TYPE + " DESC");
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if (c != null) {
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while (c.moveToNext()) {
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gid = c.getString(SqlNote.GTASK_ID_COLUMN);
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node = mGTaskHashMap.get(gid);
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if (node != null) {
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mGTaskHashMap.remove(gid);
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mGidToNid.put(gid, c.getLong(SqlNote.ID_COLUMN)); //通过hashmap建立联系
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mNidToGid.put(c.getLong(SqlNote.ID_COLUMN), gid); //通过hashmap建立联系
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syncType = node.getSyncAction(c);
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} else {
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if (c.getString(SqlNote.GTASK_ID_COLUMN).trim().length() == 0) {
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// local add
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syncType = Node.SYNC_ACTION_ADD_REMOTE;
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} else {
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// remote delete
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syncType = Node.SYNC_ACTION_DEL_LOCAL;
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}
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}
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doContentSync(syncType, node, c);
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}
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} else {
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Log.w(TAG, "failed to query existing note in database");
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}
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} finally {
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if (c != null) {
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c.close();
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c = null;
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}
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}
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// go through remaining items
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Iterator<Map.Entry<String, Node>> iter = mGTaskHashMap.entrySet().iterator(); //Iterator迭代器
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while (iter.hasNext()) {
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Map.Entry<String, Node> entry = iter.next();
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node = entry.getValue();
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doContentSync(Node.SYNC_ACTION_ADD_LOCAL, node, null);
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}
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// mCancelled can be set by another thread, so we neet to check one by //thread----线程
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// one
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// clear local delete table
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if (!mCancelled) {
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if (!DataUtils.batchDeleteNotes(mContentResolver, mLocalDeleteIdMap)) {
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throw new ActionFailureException("failed to batch-delete local deleted notes");
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}
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}
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// refresh local sync id
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if (!mCancelled) {
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GTaskClient.getInstance().commitUpdate();
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refreshLocalSyncId();
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}
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}
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/**
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* 功能：
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* @author TTS
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* @throws NetworkFailureException
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*/
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private void syncFolder() throws NetworkFailureException {
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Cursor c = null;
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String gid;
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Node node;
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int syncType;
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if (mCancelled) {
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return;
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}
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// for root folder
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try {
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c = mContentResolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI,
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Notes.ID_ROOT_FOLDER), SqlNote.PROJECTION_NOTE, null, null, null);
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if (c != null) {
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c.moveToNext();
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gid = c.getString(SqlNote.GTASK_ID_COLUMN);
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node = mGTaskHashMap.get(gid);
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if (node != null) {
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mGTaskHashMap.remove(gid);
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mGidToNid.put(gid, (long) Notes.ID_ROOT_FOLDER);
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mNidToGid.put((long) Notes.ID_ROOT_FOLDER, gid);
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// for system folder, only update remote name if necessary
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if (!node.getName().equals(
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GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_DEFAULT))
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doContentSync(Node.SYNC_ACTION_UPDATE_REMOTE, node, c);
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} else {
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doContentSync(Node.SYNC_ACTION_ADD_REMOTE, node, c);
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}
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} else {
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Log.w(TAG, "failed to query root folder");
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}
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} finally {
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if (c != null) {
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c.close();
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c = null;
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}
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}
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// for call-note folder
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try {
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c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE, "(_id=?)",
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new String[] {
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String.valueOf(Notes.ID_CALL_RECORD_FOLDER)
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}, null);
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if (c != null) {
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if (c.moveToNext()) {
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gid = c.getString(SqlNote.GTASK_ID_COLUMN);
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node = mGTaskHashMap.get(gid);
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if (node != null) {
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|
|
mGTaskHashMap.remove(gid);
|
|
|
mGidToNid.put(gid, (long) Notes.ID_CALL_RECORD_FOLDER);
|
|
|
mNidToGid.put((long) Notes.ID_CALL_RECORD_FOLDER, gid);
|
|
|
// for system folder, only update remote name if
|
|
|
// necessary
|
|
|
if (!node.getName().equals(
|
|
|
GTaskStringUtils.MIUI_FOLDER_PREFFIX
|
|
|
+ GTaskStringUtils.FOLDER_CALL_NOTE))
|
|
|
doContentSync(Node.SYNC_ACTION_UPDATE_REMOTE, node, c);
|
|
|
} else {
|
|
|
doContentSync(Node.SYNC_ACTION_ADD_REMOTE, node, c);
|
|
|
}
|
|
|
}
|
|
|
} else {
|
|
|
Log.w(TAG, "failed to query call note folder");
|
|
|
}
|
|
|
} finally {
|
|
|
if (c != null) {
|
|
|
c.close();
|
|
|
c = null;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// for local existing folders
|
|
|
try {
|
|
|
c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE,
|
|
|
"(type=? AND parent_id<>?)", new String[] {
|
|
|
String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)
|
|
|
}, NoteColumns.TYPE + " DESC");
|
|
|
if (c != null) {
|
|
|
while (c.moveToNext()) {
|
|
|
gid = c.getString(SqlNote.GTASK_ID_COLUMN);
|
|
|
node = mGTaskHashMap.get(gid);
|
|
|
if (node != null) {
|
|
|
mGTaskHashMap.remove(gid);
|
|
|
mGidToNid.put(gid, c.getLong(SqlNote.ID_COLUMN));
|
|
|
mNidToGid.put(c.getLong(SqlNote.ID_COLUMN), gid);
|
|
|
syncType = node.getSyncAction(c);
|
|
|
} else {
|
|
|
if (c.getString(SqlNote.GTASK_ID_COLUMN).trim().length() == 0) {
|
|
|
// local add
|
|
|
syncType = Node.SYNC_ACTION_ADD_REMOTE;
|
|
|
} else {
|
|
|
// remote delete
|
|
|
syncType = Node.SYNC_ACTION_DEL_LOCAL;
|
|
|
}
|
|
|
}
|
|
|
doContentSync(syncType, node, c);
|
|
|
}
|
|
|
} else {
|
|
|
Log.w(TAG, "failed to query existing folder");
|
|
|
}
|
|
|
} finally {
|
|
|
if (c != null) {
|
|
|
c.close();
|
|
|
c = null;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// for remote add folders
|
|
|
Iterator<Map.Entry<String, TaskList>> iter = mGTaskListHashMap.entrySet().iterator();
|
|
|
while (iter.hasNext()) {
|
|
|
Map.Entry<String, TaskList> entry = iter.next();
|
|
|
gid = entry.getKey();
|
|
|
node = entry.getValue();
|
|
|
if (mGTaskHashMap.containsKey(gid)) {
|
|
|
mGTaskHashMap.remove(gid);
|
|
|
doContentSync(Node.SYNC_ACTION_ADD_LOCAL, node, null);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
if (!mCancelled)
|
|
|
GTaskClient.getInstance().commitUpdate();
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 功能：syncType分类，addLocalNode，addRemoteNode，deleteNode，updateLocalNode，updateRemoteNode
|
|
|
* @author TTS
|
|
|
* @param syncType
|
|
|
* @param node
|
|
|
* @param c
|
|
|
* @throws NetworkFailureException
|
|
|
*/
|
|
|
private void doContentSync(int syncType, Node node, Cursor c) throws NetworkFailureException {
|
|
|
if (mCancelled) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
MetaData meta;
|
|
|
switch (syncType) {
|
|
|
case Node.SYNC_ACTION_ADD_LOCAL:
|
|
|
addLocalNode(node);
|
|
|
break;
|
|
|
case Node.SYNC_ACTION_ADD_REMOTE:
|
|
|
addRemoteNode(node, c);
|
|
|
break;
|
|
|
case Node.SYNC_ACTION_DEL_LOCAL:
|
|
|
meta = mMetaHashMap.get(c.getString(SqlNote.GTASK_ID_COLUMN));
|
|
|
if (meta != null) {
|
|
|
GTaskClient.getInstance().deleteNode(meta);
|
|
|
}
|
|
|
mLocalDeleteIdMap.add(c.getLong(SqlNote.ID_COLUMN));
|
|
|
break;
|
|
|
case Node.SYNC_ACTION_DEL_REMOTE:
|
|
|
meta = mMetaHashMap.get(node.getGid());
|
|
|
if (meta != null) {
|
|
|
GTaskClient.getInstance().deleteNode(meta);
|
|
|
}
|
|
|
GTaskClient.getInstance().deleteNode(node);
|
|
|
break;
|
|
|
case Node.SYNC_ACTION_UPDATE_LOCAL:
|
|
|
updateLocalNode(node, c);
|
|
|
break;
|
|
|
case Node.SYNC_ACTION_UPDATE_REMOTE:
|
|
|
updateRemoteNode(node, c);
|
|
|
break;
|
|
|
case Node.SYNC_ACTION_UPDATE_CONFLICT:
|
|
|
// merging both modifications maybe a good idea
|
|
|
// right now just use local update simply
|
|
|
updateRemoteNode(node, c);
|
|
|
break;
|
|
|
case Node.SYNC_ACTION_NONE:
|
|
|
break;
|
|
|
case Node.SYNC_ACTION_ERROR:
|
|
|
default:
|
|
|
throw new ActionFailureException("unkown sync action type");
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 功能：本地增加Node
|
|
|
* @author TTS
|
|
|
* @param node
|
|
|
* @throws NetworkFailureException
|
|
|
*/
|
|
|
private void addLocalNode(Node node) throws NetworkFailureException {
|
|
|
if (mCancelled) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
SqlNote sqlNote;
|
|
|
if (node instanceof TaskList) {
|
|
|
if (node.getName().equals(
|
|
|
GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_DEFAULT)) {
|
|
|
sqlNote = new SqlNote(mContext, Notes.ID_ROOT_FOLDER);
|
|
|
} else if (node.getName().equals(
|
|
|
GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_CALL_NOTE)) {
|
|
|
sqlNote = new SqlNote(mContext, Notes.ID_CALL_RECORD_FOLDER);
|
|
|
} else {
|
|
|
sqlNote = new SqlNote(mContext);
|
|
|
sqlNote.setContent(node.getLocalJSONFromContent());
|
|
|
sqlNote.setParentId(Notes.ID_ROOT_FOLDER);
|
|
|
}
|
|
|
} else {
|
|
|
sqlNote = new SqlNote(mContext);
|
|
|
JSONObject js = node.getLocalJSONFromContent();
|
|
|
try {
|
|
|
if (js.has(GTaskStringUtils.META_HEAD_NOTE)) {
|
|
|
JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
|
|
|
if (note.has(NoteColumns.ID)) {
|
|
|
long id = note.getLong(NoteColumns.ID);
|
|
|
if (DataUtils.existInNoteDatabase(mContentResolver, id)) {
|
|
|
// the id is not available, have to create a new one
|
|
|
note.remove(NoteColumns.ID);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
if (js.has(GTaskStringUtils.META_HEAD_DATA)) {
|
|
|
JSONArray dataArray = js.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
|
|
|
for (int i = 0; i < dataArray.length(); i++) {
|
|
|
JSONObject data = dataArray.getJSONObject(i);
|
|
|
if (data.has(DataColumns.ID)) {
|
|
|
long dataId = data.getLong(DataColumns.ID);
|
|
|
if (DataUtils.existInDataDatabase(mContentResolver, dataId)) {
|
|
|
// the data id is not available, have to create
|
|
|
// a new one
|
|
|
data.remove(DataColumns.ID);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
}
|
|
|
} catch (JSONException e) {
|
|
|
Log.w(TAG, e.toString());
|
|
|
e.printStackTrace();
|
|
|
}
|
|
|
sqlNote.setContent(js);
|
|
|
|
|
|
Long parentId = mGidToNid.get(((Task) node).getParent().getGid());
|
|
|
if (parentId == null) {
|
|
|
Log.e(TAG, "cannot find task's parent id locally");
|
|
|
throw new ActionFailureException("cannot add local node");
|
|
|
}
|
|
|
sqlNote.setParentId(parentId.longValue());
|
|
|
}
|
|
|
|
|
|
// create the local node
|
|
|
sqlNote.setGtaskId(node.getGid());
|
|
|
sqlNote.commit(false);
|
|
|
|
|
|
// update gid-nid mapping
|
|
|
mGidToNid.put(node.getGid(), sqlNote.getId());
|
|
|
mNidToGid.put(sqlNote.getId(), node.getGid());
|
|
|
|
|
|
// update meta
|
|
|
updateRemoteMeta(node.getGid(), sqlNote);
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 功能：update本地node
|
|
|
* @author TTS
|
|
|
* @param node
|
|
|
* ----同步操作的基础数据类型
|
|
|
* @param c
|
|
|
* ----Cursor
|
|
|
* @throws NetworkFailureException
|
|
|
*/
|
|
|
private void updateLocalNode(Node node, Cursor c) throws NetworkFailureException {
|
|
|
if (mCancelled) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
SqlNote sqlNote;
|
|
|
// update the note locally
|
|
|
sqlNote = new SqlNote(mContext, c);
|
|
|
sqlNote.setContent(node.getLocalJSONFromContent());
|
|
|
|
|
|
Long parentId = (node instanceof Task) ? mGidToNid.get(((Task) node).getParent().getGid())
|
|
|
: new Long(Notes.ID_ROOT_FOLDER);
|
|
|
if (parentId == null) {
|
|
|
Log.e(TAG, "cannot find task's parent id locally");
|
|
|
throw new ActionFailureException("cannot update local node");
|
|
|
}
|
|
|
sqlNote.setParentId(parentId.longValue());
|
|
|
sqlNote.commit(true);
|
|
|
|
|
|
// update meta info
|
|
|
updateRemoteMeta(node.getGid(), sqlNote);
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 功能：远程增加Node
|
|
|
* 需要updateRemoteMeta
|
|
|
* @author TTS
|
|
|
* @param node
|
|
|
* ----同步操作的基础数据类型
|
|
|
* @param c
|
|
|
* --Cursor
|
|
|
* @throws NetworkFailureException
|
|
|
*/
|
|
|
private void addRemoteNode(Node node, Cursor c) throws NetworkFailureException {
|
|
|
if (mCancelled) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
SqlNote sqlNote = new SqlNote(mContext, c); //从本地mContext中获取内容
|
|
|
Node n;
|
|
|
|
|
|
// update remotely
|
|
|
if (sqlNote.isNoteType()) {
|
|
|
Task task = new Task();
|
|
|
task.setContentByLocalJSON(sqlNote.getContent());
|
|
|
|
|
|
String parentGid = mNidToGid.get(sqlNote.getParentId());
|
|
|
if (parentGid == null) {
|
|
|
Log.e(TAG, "cannot find task's parent tasklist"); //调试信息
|
|
|
throw new ActionFailureException("cannot add remote task");
|
|
|
}
|
|
|
mGTaskListHashMap.get(parentGid).addChildTask(task); //在本地生成的GTaskList中增加子结点
|
|
|
|
|
|
//登录远程服务器，创建Task
|
|
|
GTaskClient.getInstance().createTask(task);
|
|
|
n = (Node) task;
|
|
|
|
|
|
// add meta
|
|
|
updateRemoteMeta(task.getGid(), sqlNote);
|
|
|
} else {
|
|
|
TaskList tasklist = null;
|
|
|
|
|
|
// we need to skip folder if it has already existed
|
|
|
String folderName = GTaskStringUtils.MIUI_FOLDER_PREFFIX;
|
|
|
if (sqlNote.getId() == Notes.ID_ROOT_FOLDER)
|
|
|
folderName += GTaskStringUtils.FOLDER_DEFAULT;
|
|
|
else if (sqlNote.getId() == Notes.ID_CALL_RECORD_FOLDER)
|
|
|
folderName += GTaskStringUtils.FOLDER_CALL_NOTE;
|
|
|
else
|
|
|
folderName += sqlNote.getSnippet();
|
|
|
|
|
|
//iterator迭代器，通过统一的接口迭代所有的map元素
|
|
|
Iterator<Map.Entry<String, TaskList>> iter = mGTaskListHashMap.entrySet().iterator();
|
|
|
while (iter.hasNext()) {
|
|
|
Map.Entry<String, TaskList> entry = iter.next();
|
|
|
String gid = entry.getKey();
|
|
|
TaskList list = entry.getValue();
|
|
|
|
|
|
if (list.getName().equals(folderName)) {
|
|
|
tasklist = list;
|
|
|
if (mGTaskHashMap.containsKey(gid)) {
|
|
|
mGTaskHashMap.remove(gid);
|
|
|
}
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// no match we can add now
|
|
|
if (tasklist == null) {
|
|
|
tasklist = new TaskList();
|
|
|
tasklist.setContentByLocalJSON(sqlNote.getContent());
|
|
|
GTaskClient.getInstance().createTaskList(tasklist);
|
|
|
mGTaskListHashMap.put(tasklist.getGid(), tasklist);
|
|
|
}
|
|
|
n = (Node) tasklist;
|
|
|
}
|
|
|
|
|
|
// update local note
|
|
|
sqlNote.setGtaskId(n.getGid());
|
|
|
sqlNote.commit(false);
|
|
|
sqlNote.resetLocalModified();
|
|
|
sqlNote.commit(true);
|
|
|
|
|
|
// gid-id mapping //创建id间的映射
|
|
|
mGidToNid.put(n.getGid(), sqlNote.getId());
|
|
|
mNidToGid.put(sqlNote.getId(), n.getGid());
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 功能：更新远端的Node，包含meta更新(updateRemoteMeta)
|
|
|
* @author TTS
|
|
|
* @param node
|
|
|
* ----同步操作的基础数据类型
|
|
|
* @param c
|
|
|
* --Cursor
|
|
|
* @throws NetworkFailureException
|
|
|
*/
|
|
|
private void updateRemoteNode(Node node, Cursor c) throws NetworkFailureException {
|
|
|
if (mCancelled) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
SqlNote sqlNote = new SqlNote(mContext, c);
|
|
|
|
|
|
// update remotely
|
|
|
node.setContentByLocalJSON(sqlNote.getContent());
|
|
|
GTaskClient.getInstance().addUpdateNode(node); //GTaskClient用途为从本地登陆远端服务器
|
|
|
|
|
|
// update meta
|
|
|
updateRemoteMeta(node.getGid(), sqlNote);
|
|
|
|
|
|
// move task if necessary
|
|
|
if (sqlNote.isNoteType()) {
|
|
|
Task task = (Task) node;
|
|
|
TaskList preParentList = task.getParent();
|
|
|
//preParentList为通过node获取的父节点列表
|
|
|
|
|
|
String curParentGid = mNidToGid.get(sqlNote.getParentId());
|
|
|
//curParentGid为通过光标在数据库中找到sqlNote的mParentId，再通过mNidToGid由long类型转为String类型的Gid
|
|
|
|
|
|
if (curParentGid == null) {
|
|
|
Log.e(TAG, "cannot find task's parent tasklist");
|
|
|
throw new ActionFailureException("cannot update remote task");
|
|
|
}
|
|
|
TaskList curParentList = mGTaskListHashMap.get(curParentGid);
|
|
|
//通过HashMap找到对应Gid的TaskList
|
|
|
|
|
|
if (preParentList != curParentList) { //?????????????
|
|
|
preParentList.removeChildTask(task);
|
|
|
curParentList.addChildTask(task);
|
|
|
GTaskClient.getInstance().moveTask(task, preParentList, curParentList);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// clear local modified flag
|
|
|
sqlNote.resetLocalModified();
|
|
|
//commit到本地数据库
|
|
|
sqlNote.commit(true);
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 功能：升级远程meta。 meta---元数据----计算机文件系统管理数据---管理数据的数据。
|
|
|
* @author TTS
|
|
|
* @param gid
|
|
|
* ---GoogleID为String类型
|
|
|
* @param sqlNote
|
|
|
* ---同步前的数据库操作，故使用类SqlNote
|
|
|
* @throws NetworkFailureException
|
|
|
*/
|
|
|
private void updateRemoteMeta(String gid, SqlNote sqlNote) throws NetworkFailureException {
|
|
|
if (sqlNote != null && sqlNote.isNoteType()) {
|
|
|
MetaData metaData = mMetaHashMap.get(gid);
|
|
|
if (metaData != null) {
|
|
|
metaData.setMeta(gid, sqlNote.getContent());
|
|
|
GTaskClient.getInstance().addUpdateNode(metaData);
|
|
|
} else {
|
|
|
metaData = new MetaData();
|
|
|
metaData.setMeta(gid, sqlNote.getContent());
|
|
|
mMetaList.addChildTask(metaData);
|
|
|
mMetaHashMap.put(gid, metaData);
|
|
|
GTaskClient.getInstance().createTask(metaData);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 功能：刷新本地，给sync的ID对应上最后更改过的对象
|
|
|
* @author TTS
|
|
|
* @return void
|
|
|
* @throws NetworkFailureException
|
|
|
*/
|
|
|
private void refreshLocalSyncId() throws NetworkFailureException {
|
|
|
if (mCancelled) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
// get the latest gtask list //获取最近的（最晚的）gtask list
|
|
|
mGTaskHashMap.clear();
|
|
|
mGTaskListHashMap.clear();
|
|
|
mMetaHashMap.clear();
|
|
|
initGTaskList();
|
|
|
|
|
|
Cursor c = null;
|
|
|
try {
|
|
|
c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE,
|
|
|
"(type<>? AND parent_id<>?)", new String[] {
|
|
|
String.valueOf(Notes.TYPE_SYSTEM), String.valueOf(Notes.ID_TRASH_FOLER)
|
|
|
}, NoteColumns.TYPE + " DESC"); //query语句：五个参数，NoteColumns.TYPE + " DESC"-----为按类型递减顺序返回查询结果。new String[] {String.valueOf(Notes.TYPE_SYSTEM), String.valueOf(Notes.ID_TRASH_FOLER)}------为选择参数。"(type<>? AND parent_id<>?)"-------指明返回行过滤器。SqlNote.PROJECTION_NOTE--------应返回的数据列的名字。Notes.CONTENT_NOTE_URI--------contentProvider包含所有数据集所对应的uri
|
|
|
if (c != null) {
|
|
|
while (c.moveToNext()) {
|
|
|
String gid = c.getString(SqlNote.GTASK_ID_COLUMN);
|
|
|
Node node = mGTaskHashMap.get(gid);
|
|
|
if (node != null) {
|
|
|
mGTaskHashMap.remove(gid);
|
|
|
ContentValues values = new ContentValues(); //在ContentValues中创建键值对。准备通过contentResolver写入数据
|
|
|
values.put(NoteColumns.SYNC_ID, node.getLastModified());
|
|
|
mContentResolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, //进行批量更改，选择参数为NULL，应该可以用insert替换，参数分别为表名和需要更新的value对象。
|
|
|
c.getLong(SqlNote.ID_COLUMN)), values, null, null);
|
|
|
} else {
|
|
|
Log.e(TAG, "something is missed");
|
|
|
throw new ActionFailureException(
|
|
|
"some local items don't have gid after sync");
|
|
|
}
|
|
|
}
|
|
|
} else {
|
|
|
Log.w(TAG, "failed to query local note to refresh sync id");
|
|
|
}
|
|
|
} finally {
|
|
|
if (c != null) {
|
|
|
c.close();
|
|
|
c = null;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 功能：获取同步账号,mAccount.name
|
|
|
* @author TTS
|
|
|
* @return String
|
|
|
*/
|
|
|
public String getSyncAccount() {
|
|
|
return GTaskClient.getInstance().getSyncAccount().name;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 功能：取消同步，置mCancelled为true
|
|
|
* @author TTS
|
|
|
*/
|
|
|
public void cancelSync() {
|
|
|
mCancelled = true;
|
|
|
}
|
|
|
} |
