From 9cbb43a8ca42497dce0ead75faf92ab0331bdbb5 Mon Sep 17 00:00:00 2001 From: moneynewmoon <2075698549@qq.com> Date: Thu, 29 May 2025 15:26:31 +0800 Subject: [PATCH] remote --- GTaskClient.java | 618 +++++++++++++++++++++++++++++++ GTaskManager.java | 824 ++++++++++++++++++++++++++++++++++++++++++ GTaskSyncService.java | 181 ++++++++++ 3 files changed, 1623 insertions(+) create mode 100644 GTaskClient.java create mode 100644 GTaskManager.java create mode 100644 GTaskSyncService.java diff --git a/GTaskClient.java b/GTaskClient.java new file mode 100644 index 0000000..23464e2 --- /dev/null +++ b/GTaskClient.java @@ -0,0 +1,618 @@ +/* + * 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; +//导入Android账户相关类 +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; +//导入自定义数据结构和工具类 +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; +// 导入Apache HttpClient相关类 +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; +// JSON处理类 +import org.json.JSONArray; +import org.json.JSONException; +import org.json.JSONObject; +// Java IO相关类 +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; + + +public class GTaskClient { + // 日志标签 + private static final String TAG = GTaskClient.class.getSimpleName(); + // Google Tasks API地址 + private static final String GTASK_URL = "https://mail.google.com/tasks/"; + + private static final String GTASK_GET_URL = "https://mail.google.com/tasks/ig"; + + private static final String GTASK_POST_URL = "https://mail.google.com/tasks/r/ig"; + + private static GTaskClient mInstance = null; + // HTTP客户端和相关配置 + private DefaultHttpClient mHttpClient;// HTTP客户端实例 + + private String mGetUrl; + + private String mPostUrl; + + private long mClientVersion; + + private boolean mLoggedin; + + private long mLastLoginTime; + + private int mActionId; + + private Account mAccount; + + private JSONArray mUpdateArray; + // 私有构造函数 + private GTaskClient() { + mHttpClient = null; + mGetUrl = GTASK_GET_URL; + mPostUrl = GTASK_POST_URL; + mClientVersion = -1; + mLoggedin = false; + mLastLoginTime = 0; + mActionId = 1; + mAccount = null; + mUpdateArray = null; + } + // 获取单例实例 + public static synchronized GTaskClient getInstance() { + if (mInstance == null) { + mInstance = new GTaskClient(); + } + return mInstance; + } + + public boolean login(Activity activity) { + // we suppose that the cookie would expire after 5 minutes + // then we need to re-login + // 检查登录有效期（5分钟） + final long interval = 1000 * 60 * 5; + if (mLastLoginTime + interval < System.currentTimeMillis()) { + mLoggedin = false; + // 超时需重新登录 + } + + // need to re-login after account switch + // 检查账户是否变更 + if (mLoggedin + && !TextUtils.equals(getSyncAccount().name, NotesPreferenceActivity + .getSyncAccountName(activity))) { + mLoggedin = false; + } + + if (mLoggedin) { + Log.d(TAG, "already logged in"); + return true; + } +// 更新最后登录时间 + mLastLoginTime = System.currentTimeMillis(); +// 获取Google账户授权令牌 + String authToken = loginGoogleAccount(activity, false); + if (authToken == null) { + Log.e(TAG, "login google account failed"); + return false; + } + // 处理自定义域名账户 +// login with custom domain if necessary + if (!(mAccount.name.toLowerCase().endsWith("gmail.com") || mAccount.name.toLowerCase() + .endsWith("googlemail.com"))) { +// 构建自定义URL路径 + StringBuilder url = new StringBuilder(GTASK_URL).append("a/"); + int index = mAccount.name.indexOf('@') + 1; + String suffix = mAccount.name.substring(index); + url.append(suffix + "/"); + mGetUrl = url.toString() + "ig"; + mPostUrl = url.toString() + "r/ig"; + // 尝试登录自定义域名 + if (tryToLoginGtask(activity, authToken)) { + mLoggedin = true; + } + } + + // try to login with google official url + if (!mLoggedin) { + mGetUrl = GTASK_GET_URL; + mPostUrl = GTASK_POST_URL; + if (!tryToLoginGtask(activity, authToken)) { + return false; + } + } + + mLoggedin = true; + return true; + } + + private String loginGoogleAccount(Activity activity, boolean invalidateToken) { + String authToken; +// 账户管理器操作 + AccountManager accountManager = AccountManager.get(activity); + Account[] accounts = accountManager.getAccountsByType("com.google"); +// 无可用账户检查 + if (accounts.length == 0) { + Log.e(TAG, "there is no available google account"); + return null; + } +// 获取配置中的同步账户 + String accountName = NotesPreferenceActivity.getSyncAccountName(activity); + Account account = null; +// 遍历匹配账户名称 + for (Account a : accounts) { + if (a.name.equals(accountName)) { + account = a; + break; + } + } + if (account != null) { + // 设置当前账户 + mAccount = account; + } else { + Log.e(TAG, "unable to get an account with the same name in the settings"); + return null; + } + + // get the token now + AccountManagerFuture accountManagerFuture = accountManager.getAuthToken(account, + "goanna_mobile", null, activity, null, null); +// 获取授权令牌 + try { + Bundle authTokenBundle = accountManagerFuture.getResult(); + authToken = authTokenBundle.getString(AccountManager.KEY_AUTHTOKEN); +// 需要失效旧令牌时重新获取 + if (invalidateToken) { + accountManager.invalidateAuthToken("com.google", authToken); + loginGoogleAccount(activity, false); + } + } catch (Exception e) { + Log.e(TAG, "get auth token failed"); + authToken = null; + } + + return authToken; + } + + private boolean tryToLoginGtask(Activity activity, String authToken) { +// 首次登录尝试 + if (!loginGtask(authToken)) { + // maybe the auth token is out of date, now let's invalidate the + // token and try again + authToken = loginGoogleAccount(activity, true); + if (authToken == null) { + Log.e(TAG, "login google account failed"); + return false; + } +// 使用新令牌再次尝试登录 + if (!loginGtask(authToken)) { + Log.e(TAG, "login gtask failed"); + return false; + } + } + return true; + } + + private boolean loginGtask(String authToken) { +// 设置HTTP连接参数 + int timeoutConnection = 10000; + int timeoutSocket = 15000; + HttpParams httpParameters = new BasicHttpParams(); + HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection); + HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket); +// 初始化HTTP客户端 + mHttpClient = new DefaultHttpClient(httpParameters); + BasicCookieStore localBasicCookieStore = new BasicCookieStore(); + mHttpClient.setCookieStore(localBasicCookieStore); + HttpProtocolParams.setUseExpectContinue(mHttpClient.getParams(), false); + + // login gtask + try { +// 构建带认证令牌的登录URL + String loginUrl = mGetUrl + "?auth=" + authToken; + HttpGet httpGet = new HttpGet(loginUrl); + HttpResponse response = null; + response = mHttpClient.execute(httpGet); + + // get the cookie now + List cookies = mHttpClient.getCookieStore().getCookies(); + boolean hasAuthCookie = false; + for (Cookie cookie : cookies) { + if (cookie.getName().contains("GTL")) { + hasAuthCookie = true; + } + } + if (!hasAuthCookie) { + Log.w(TAG, "it seems that there is no auth cookie"); + } + + // get the client version +// 解析响应内容获取客户端版本 + 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) { + 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++; + } + + private HttpPost createHttpPost() { + HttpPost httpPost = new HttpPost(mPostUrl); +// 设置请求头信息 + httpPost.setHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8"); + httpPost.setHeader("AT", "1"); + return httpPost; + } + + private String getResponseContent(HttpEntity entity) throws IOException { + String contentEncoding = null; + if (entity.getContentEncoding() != null) { + contentEncoding = entity.getContentEncoding().getValue(); + Log.d(TAG, "encoding: " + contentEncoding); + } + + InputStream input = entity.getContent(); +// 处理压缩内容 + if (contentEncoding != null && contentEncoding.equalsIgnoreCase("gzip")) { + input = new GZIPInputStream(entity.getContent()); + } else if (contentEncoding != null && contentEncoding.equalsIgnoreCase("deflate")) { + Inflater inflater = new Inflater(true); + input = new InflaterInputStream(entity.getContent(), inflater); + } +// 读取响应内容 + try { + InputStreamReader isr = new InputStreamReader(input); + BufferedReader br = new BufferedReader(isr); + StringBuilder sb = new StringBuilder(); + + while (true) { + String buff = br.readLine(); + if (buff == null) { + return sb.toString(); + } + sb = sb.append(buff); + } + } finally { + input.close(); + } + } + + private JSONObject postRequest(JSONObject js) throws NetworkFailureException { +// 登录状态检查 + if (!mLoggedin) { + Log.e(TAG, "please login first"); + throw new ActionFailureException("not logged in"); + } + + HttpPost httpPost = createHttpPost(); + try { +// 构建POST参数 + LinkedList list = new LinkedList(); + list.add(new BasicNameValuePair("r", js.toString())); + UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list, "UTF-8"); + httpPost.setEntity(entity); +// 执行请求并处理响应 + // execute the post + 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"); + } + } + + public void createTask(Task task) throws NetworkFailureException { + commitUpdate(); +// 提交暂存的更新 + try { + JSONObject jsPost = new JSONObject(); + JSONArray actionList = new JSONArray(); +// 构建创建动作 + // action_list + actionList.put(task.getCreateAction(getActionId())); + jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); +// 添加客户端版本 + // client_version + jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); +// 发送请求并处理响应 + // 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)); +// 设置服务器生成ID + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("create task: handing jsonobject failed"); + } + } + + public void createTaskList(TaskList tasklist) throws NetworkFailureException { + commitUpdate();// 提交暂存的更新 + try { + JSONObject jsPost = new JSONObject(); + JSONArray actionList = new JSONArray(); + // 构建创建动作 + // action_list + actionList.put(tasklist.getCreateAction(getActionId())); + jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); +// 添加客户端版本 + // client version + jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); +// 发送请求并处理响应 + // 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));// 设置服务器生成ID + + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("create tasklist: handing jsonobject failed"); + } + } +// 提交暂存的更新操作（批量执行队列中的更新） + public void commitUpdate() throws NetworkFailureException { + if (mUpdateArray != null) { + try { + JSONObject jsPost = new JSONObject(); + // 设置操作列表字段（直接使用暂存的更新数组） + // action_list + jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, mUpdateArray); + // 添加客户端版本号 + // client_version + jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); + + postRequest(jsPost);// 发送批量更新请求 + mUpdateArray = null;// 清空更新队列 + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("commit update: handing jsonobject failed"); + } + } + } +// 向更新队列添加单个操作（自动处理批量限制） + public void addUpdateNode(Node node) throws NetworkFailureException { + if (node != null) { + // too many update items may result in an error + // set max to 10 items +// 限制更新队列最大长度为10（超过则先提交当前队列） + if (mUpdateArray != null && mUpdateArray.length() > 10) { + commitUpdate();// 提交当前队列// 初始化更新队列 + } + + if (mUpdateArray == null)// 初始化更新队列 + mUpdateArray = new JSONArray(); + // 添加节点的更新操作（调用Node对象生成操作JSON） + mUpdateArray.put(node.getUpdateAction(getActionId())); + } + } +// 移动任务到新位置（支持任务列表间移动和任务排序） + public void moveTask(Task task, TaskList preParent, TaskList curParent) + throws NetworkFailureException { + commitUpdate();// 先提交之前暂存的更新 + try { + JSONObject jsPost = new JSONObject(); + JSONArray actionList = new JSONArray(); + JSONObject action = new JSONObject();// 创建移动操作JSON对象 +// 设置操作类型为移动 + // action_list + 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()); +// 如果在同一任务列表内移动且非第一个任务，设置前置兄弟ID（用于排序） + if (preParent == curParent && task.getPriorSibling() != null) { + // put prioring_sibing_id only if moving within the tasklist and + // it is not the first one + action.put(GTaskStringUtils.GTASK_JSON_PRIOR_SIBLING_ID, task.getPriorSibling()); + } +// 设置源任务列表ID和目标父级ID（目标任务列表ID） + action.put(GTaskStringUtils.GTASK_JSON_SOURCE_LIST, preParent.getGid()); + action.put(GTaskStringUtils.GTASK_JSON_DEST_PARENT, curParent.getGid()); +// 如果跨任务列表移动，额外设置目标列表ID + if (preParent != curParent) { + // put the dest_list only if moving between tasklists + action.put(GTaskStringUtils.GTASK_JSON_DEST_LIST, curParent.getGid()); + } + actionList.put(action); // 添加操作到列表 + jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); + + // client_version + // 添加客户端版本号 + jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); + + postRequest(jsPost);// 发送移动请求 + + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("move task: handing jsonobject failed"); + } + } +// 删除任务或任务列表（标记为删除并提交更新） + public void deleteNode(Node node) throws NetworkFailureException { + commitUpdate();// 先提交之前暂存的更新 + try { + JSONObject jsPost = new JSONObject(); + JSONArray actionList = new JSONArray(); +// 标记节点为已删除 + // action_list + node.setDeleted(true); + // 添加删除操作 + actionList.put(node.getUpdateAction(getActionId())); + jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); + // 添加客户端版本号 + // client_version + jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); + + postRequest(jsPost); + mUpdateArray = null; + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("delete node: handing jsonobject failed"); + } + } + // 获取所有任务列表（从Google Tasks获取根任务列表数据） + public JSONArray getTaskLists() throws NetworkFailureException { + if (!mLoggedin) {// 未登录检查 + Log.e(TAG, "please login first"); + throw new ActionFailureException("not logged in"); + } + + try { + HttpGet httpGet = new HttpGet(mGetUrl);// 创建GET请求 + HttpResponse response = null; + response = mHttpClient.execute(httpGet); +// 解析响应内容 + // get the task list + 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) { + jsString = resString.substring(begin + jsBegin.length(), end); + } + JSONObject js = new JSONObject(jsString); +// 提取任务列表数据 + return js.getJSONObject("t").getJSONArray(GTaskStringUtils.GTASK_JSON_LISTS); + } catch (ClientProtocolException e) { +// HTTP协议异常 + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new NetworkFailureException("gettasklists: httpget failed"); + } catch (IOException e) { + // IO异常 + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new NetworkFailureException("gettasklists: httpget failed"); + } catch (JSONException e) { +// JSON解析异常 + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("get task lists: handing jasonobject failed"); + } + } +// 获取指定任务列表中的任务（支持获取未删除任务） + public JSONArray getTaskList(String listGid) throws NetworkFailureException { + commitUpdate(); + try { + JSONObject jsPost = new JSONObject(); + JSONArray actionList = new JSONArray(); + JSONObject action = new JSONObject(); +// 设置操作类型为获取所有任务 + // action_list + action.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, + GTaskStringUtils.GTASK_JSON_ACTION_TYPE_GETALL); + action.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, getActionId()); + action.put(GTaskStringUtils.GTASK_JSON_LIST_ID, listGid); + action.put(GTaskStringUtils.GTASK_JSON_GET_DELETED, false); + actionList.put(action);// 添加操作到列表 + 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"); + } + } +// 获取当前同步账户对象 + public Account getSyncAccount() { + return mAccount; + } +// 重置更新队列（清空待提交的操作） + public void resetUpdateArray() { + mUpdateArray = null; + } +} diff --git a/GTaskManager.java b/GTaskManager.java new file mode 100644 index 0000000..bb86b16 --- /dev/null +++ b/GTaskManager.java @@ -0,0 +1,824 @@ + +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * 授权协议：Apache License, 版本 2.0（"许可证"）； + * 除非遵守许可证，否则不得使用本文件。 + * 您可以在以下网址获取许可证副本： + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * 除非适用法律要求或书面同意，根据许可证分发的软件按"原样"提供， + * 不附带任何明示或暗示的保证或条件。请参阅许可证，了解具体的权限和限制。 + */ + +package net.micode.notes.gtask.remote; + +import android.app.Activity; +import android.content.ContentResolver; +import android.content.ContentUris; +import android.content.ContentValues; +import android.content.Context; +import android.database.Cursor; +import android.util.Log; + +import net.micode.notes.R; +import net.micode.notes.data.Notes; +import net.micode.notes.data.Notes.DataColumns; +import net.micode.notes.data.Notes.NoteColumns; +import net.micode.notes.gtask.data.MetaData; +import net.micode.notes.gtask.data.Node; +import net.micode.notes.gtask.data.SqlNote; +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.DataUtils; +import net.micode.notes.tool.GTaskStringUtils; + +import org.json.JSONArray; +import org.json.JSONException; +import org.json.JSONObject; + +import java.util.HashMap; +import java.util.HashSet; +import java.util.Iterator; +import java.util.Map; + + +public class GTaskManager { + private static final String TAG = GTaskManager.class.getSimpleName(); + + // 同步状态：成功 + public static final int STATE_SUCCESS = 0; + // 同步状态：网络错误 + public static final int STATE_NETWORK_ERROR = 1; + // 同步状态：内部错误 + public static final int STATE_INTERNAL_ERROR = 2; + // 同步状态：同步进行中 + public static final int STATE_SYNC_IN_PROGRESS = 3; + // 同步状态：同步已取消 + public static final int STATE_SYNC_CANCELLED = 4; + + private static GTaskManager mInstance = null; + + // 用于获取认证令牌的Activity + private Activity mActivity; + // 上下文环境 + private Context mContext; + // 内容解析器 + private ContentResolver mContentResolver; + // 同步进行中标志 + private boolean mSyncing; + // 同步取消标志 + private boolean mCancelled; + // 存储从Google获取的任务列表（键为GID） + private HashMap mGTaskListHashMap; + // 存储从Google获取的任务节点（键为GID） + private HashMap mGTaskHashMap; + // 存储元数据（键为关联的GID） + private HashMap mMetaHashMap; + // 元数据列表 + private TaskList mMetaList; + // 本地已删除笔记的ID集合 + private HashSet mLocalDeleteIdMap; + // GID到本地ID的映射 + private HashMap mGidToNid; + // 本地ID到GID的映射 + private HashMap mNidToGid; + + private GTaskManager() { + mSyncing = false; + mCancelled = false; + mGTaskListHashMap = new HashMap(); + mGTaskHashMap = new HashMap(); + mMetaHashMap = new HashMap(); + mMetaList = null; + mLocalDeleteIdMap = new HashSet(); + mGidToNid = new HashMap(); + mNidToGid = new HashMap(); + } + + // 获取单例实例 + public static synchronized GTaskManager getInstance() { + if (mInstance == null) { + mInstance = new GTaskManager(); + } + return mInstance; + } + + // 设置Activity上下文（用于获取认证令牌） + public synchronized void setActivityContext(Activity activity) { + mActivity = activity; + } + + // 执行同步操作 + public int sync(Context context, GTaskASyncTask asyncTask) { + if (mSyncing) { + Log.d(TAG, "Sync is in progress"); + return STATE_SYNC_IN_PROGRESS; + } + mContext = context; + mContentResolver = mContext.getContentResolver(); + mSyncing = true; + mCancelled = false; + // 清空各类映射和集合 + mGTaskListHashMap.clear(); + mGTaskHashMap.clear(); + mMetaHashMap.clear(); + mLocalDeleteIdMap.clear(); + mGidToNid.clear(); + mNidToGid.clear(); + + try { + GTaskClient client = GTaskClient.getInstance(); + client.resetUpdateArray(); + + // 登录Google任务 + if (!mCancelled) { + if (!client.login(mActivity)) { + throw new NetworkFailureException("login google task failed"); + } + } + + // 从Google获取任务列表并初始化 + asyncTask.publishProgess(mContext.getString(R.string.sync_progress_init_list)); + initGTaskList(); + + // 执行内容同步 + asyncTask.publishProgess(mContext.getString(R.string.sync_progress_syncing)); + syncContent(); + } catch (NetworkFailureException e) { + Log.e(TAG, e.toString()); + return STATE_NETWORK_ERROR; + } catch (ActionFailureException e) { + Log.e(TAG, e.toString()); + return STATE_INTERNAL_ERROR; + } catch (Exception e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + return STATE_INTERNAL_ERROR; + } finally { + // 清理资源 + mGTaskListHashMap.clear(); + mGTaskHashMap.clear(); + mMetaHashMap.clear(); + mLocalDeleteIdMap.clear(); + mGidToNid.clear(); + mNidToGid.clear(); + mSyncing = false; + } + + return mCancelled ? STATE_SYNC_CANCELLED : STATE_SUCCESS; + } + + // 初始化Google任务列表 + private void initGTaskList() throws NetworkFailureException { + if (mCancelled) + return; + GTaskClient client = GTaskClient.getInstance(); + try { + JSONArray jsTaskLists = client.getTaskLists(); + + // 先初始化元数据列表 + mMetaList = null; + for (int i = 0; i < jsTaskLists.length(); i++) { + JSONObject object = jsTaskLists.getJSONObject(i); + String gid = object.getString(GTaskStringUtils.GTASK_JSON_ID); + String name = object.getString(GTaskStringUtils.GTASK_JSON_NAME); + + // 处理元数据文件夹 + if (name.equals(GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_META)) { + mMetaList = new TaskList(); + mMetaList.setContentByRemoteJSON(object); + + // 加载元数据 + JSONArray jsMetas = client.getTaskList(gid); + for (int j = 0; j < jsMetas.length(); j++) { + object = (JSONObject) jsMetas.getJSONObject(j); + MetaData metaData = new MetaData(); + metaData.setContentByRemoteJSON(object); + if (metaData.isWorthSaving()) { + mMetaList.addChildTask(metaData); + if (metaData.getGid() != null) { + mMetaHashMap.put(metaData.getRelatedGid(), metaData); + } + } + } + } + } + + // 如果元数据列表不存在则创建 + if (mMetaList == null) { + mMetaList = new TaskList(); + mMetaList.setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_META); + GTaskClient.getInstance().createTaskList(mMetaList); + } + + // 初始化普通任务列表 + for (int i = 0; i < jsTaskLists.length(); i++) { + JSONObject object = jsTaskLists.getJSONObject(i); + String gid = object.getString(GTaskStringUtils.GTASK_JSON_ID); + String name = object.getString(GTaskStringUtils.GTASK_JSON_NAME); + + // 过滤系统文件夹并处理用户自定义文件夹 + if (name.startsWith(GTaskStringUtils.MIUI_FOLDER_PREFFIX) + && !name.equals(GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_META)) { + TaskList tasklist = new TaskList(); + tasklist.setContentByRemoteJSON(object); + mGTaskListHashMap.put(gid, tasklist); + mGTaskHashMap.put(gid, tasklist); + + // 加载任务列表中的任务 + JSONArray jsTasks = client.getTaskList(gid); + for (int j = 0; j < jsTasks.length(); j++) { + object = (JSONObject) jsTasks.getJSONObject(j); + gid = object.getString(GTaskStringUtils.GTASK_JSON_ID); + Task task = new Task(); + task.setContentByRemoteJSON(object); + if (task.isWorthSaving()) { + task.setMetaInfo(mMetaHashMap.get(gid)); + tasklist.addChildTask(task); + mGTaskHashMap.put(gid, task); + } + } + } + } + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("initGTaskList: handing JSONObject failed"); + } + } + + // 同步内容（包括笔记和文件夹） + private void syncContent() throws NetworkFailureException { + int syncType; + Cursor c = null; + String gid; + Node node; + + mLocalDeleteIdMap.clear(); + + if (mCancelled) { + return; + } + + // 处理本地已删除的笔记（存在于回收站中） + 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) + }, null); + if (c != null) { + while (c.moveToNext()) { + gid = c.getString(SqlNote.GTASK_ID_COLUMN); + node = mGTaskHashMap.get(gid); + if (node != null) { + mGTaskHashMap.remove(gid); + // 执行远程删除操作 + doContentSync(Node.SYNC_ACTION_DEL_REMOTE, node, c); + } + + mLocalDeleteIdMap.add(c.getLong(SqlNote.ID_COLUMN)); + } + } else { + Log.w(TAG, "failed to query trash folder"); + } + } finally { + if (c != null) { + c.close(); + c = null; + } + } + + // 先同步文件夹 + syncFolder(); + + // 处理数据库中存在的普通笔记 + try { + c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE, + "(type=? AND parent_id<>?)", new String[]{ + String.valueOf(Notes.TYPE_NOTE), 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) { + // 本地新增笔记，需同步到远程 + syncType = Node.SYNC_ACTION_ADD_REMOTE; + } else { + // 远程已删除，本地需删除 + syncType = Node.SYNC_ACTION_DEL_LOCAL; + } + } + doContentSync(syncType, node, c); + } + } else { + Log.w(TAG, "failed to query existing note in database"); + } + + } finally { + if (c != null) { + c.close(); + c = null; + } + } + + // 处理剩余的远程任务（本地不存在的远程任务，需新增到本地） + Iterator> iter = mGTaskHashMap.entrySet().iterator(); + while (iter.hasNext()) { + Map.Entry entry = iter.next(); + node = entry.getValue(); + doContentSync(Node.SYNC_ACTION_ADD_LOCAL, node, null); + } + + // 检查取消状态并清理本地删除记录 + if (!mCancelled) { + if (!DataUtils.batchDeleteNotes(mContentResolver, mLocalDeleteIdMap)) { + throw new ActionFailureException("failed to batch-delete local deleted notes"); + } + } + + // 提交更新并刷新本地同步ID + if (!mCancelled) { + GTaskClient.getInstance().commitUpdate(); + refreshLocalSyncId(); + } + + } + + // 同步文件夹（包括系统文件夹和用户自定义文件夹） + private void syncFolder() throws NetworkFailureException { + Cursor c = null; + String gid; + Node node; + int syncType; + + if (mCancelled) { + return; + } + + // 处理根文件夹（系统文件夹） + try { + c = mContentResolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, + Notes.ID_ROOT_FOLDER), SqlNote.PROJECTION_NOTE, null, null, null); + if (c != null) { + c.moveToNext(); + gid = c.getString(SqlNote.GTASK_ID_COLUMN); + node = mGTaskHashMap.get(gid); + if (node != null) { + mGTaskHashMap.remove(gid); + mGidToNid.put(gid, (long) Notes.ID_ROOT_FOLDER); + mNidToGid.put((long) Notes.ID_ROOT_FOLDER, gid); + // 仅在名称变更时更新远程名称 + if (!node.getName().equals( + GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_DEFAULT)) + doContentSync(Node.SYNC_ACTION_UPDATE_REMOTE, node, c); + } else { + // 本地不存在，需新增到远程 + doContentSync(Node.SYNC_ACTION_ADD_REMOTE, node, c); + } + } else { + Log.w(TAG, "failed to query root folder"); + } + } finally { + if (c != null) { + c.close(); + c = null; + } + } + + // 处理通话记录文件夹（系统文件夹） + try { + c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE, "(_id=?)", + new String[]{ + String.valueOf(Notes.ID_CALL_RECORD_FOLDER) + }, null); + if (c != null) { + if (c.moveToNext()) { + gid = c.getString(SqlNote.GTASK_ID_COLUMN); + node = mGTaskHashMap.get(gid); + if (node != null) { + mGTaskHashMap.remove(gid); + mGidToNid.put(gid, (long) Notes.ID_CALL_RECORD_FOLDER); + mNidToGid.put((long) Notes.ID_CALL_RECORD_FOLDER, gid); + // 仅在名称变更时更新远程名称 + if (!node.getName().equals( + GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_CALL_NOTE)) + doContentSync(Node.SYNC_ACTION_UPDATE_REMOTE, node, c); + } else { + // 本地不存在，需新增到远程 + 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; + } + } + + // 处理用户自定义文件夹 + 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) { + // 本地新增文件夹，需同步到远程 + syncType = Node.SYNC_ACTION_ADD_REMOTE; + } else { + // 远程已删除，本地需删除 + 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; + } + } + + // 处理远程新增的文件夹（本地不存在的远程文件夹，需新增到本地） + Iterator> iter = mGTaskListHashMap.entrySet().iterator(); + while (iter.hasNext()) { + Map.Entry 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(); + } + + // 执行具体的内容同步操作 + private void doContentSync(int syncType, Node node, Cursor c) throws NetworkFailureException { + if (mCancelled) { + return; + } + + MetaData meta; + switch (syncType) { + case Node.SYNC_ACTION_ADD_LOCAL: + // 新增远程任务到本地 + addLocalNode(node); + break; + case Node.SYNC_ACTION_ADD_REMOTE: + // 新增本地任务到远程 + addRemoteNode(node, c); + break; + case Node.SYNC_ACTION_DEL_LOCAL: + // 删除本地任务（远程已删除） + 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: + // 删除远程任务（本地已删除） + meta = mMetaHashMap.get(node.getGid()); + if (meta != null) { + GTaskClient.getInstance().deleteNode(meta); + } + GTaskClient.getInstance().deleteNode(node); + break; + case Node.SYNC_ACTION_UPDATE_LOCAL: + // 更新本地任务（远程已修改） + updateLocalNode(node, c); + break; + case Node.SYNC_ACTION_UPDATE_REMOTE: + // 更新远程任务（本地已修改） + updateRemoteNode(node, c); + break; + case Node.SYNC_ACTION_UPDATE_CONFLICT: + // 冲突处理：使用本地修改覆盖远程 + updateRemoteNode(node, c); + break; + case Node.SYNC_ACTION_NONE: + break; + case Node.SYNC_ACTION_ERROR: + default: + throw new ActionFailureException("unkown sync action type"); + } + } + + // 新增远程任务到本地数据库 + private void addLocalNode(Node node) throws NetworkFailureException { + if (mCancelled) { + return; + } + + SqlNote sqlNote; + if (node instanceof TaskList) { + // 处理系统文件夹 + 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 { + // 普通文件夹 + sqlNote = new SqlNote(mContext); + sqlNote.setContent(node.getLocalJSONFromContent()); + sqlNote.setParentId(Notes.ID_ROOT_FOLDER); + } + } else { + // 普通任务 + sqlNote = new SqlNote(mContext); + JSONObject js = node.getLocalJSONFromContent(); + try { + // 处理笔记ID冲突 + 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)) { + note.remove(NoteColumns.ID); + } + } + } + + // 处理数据项ID冲突 + 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)) { + data.remove(DataColumns.ID); + } + } + } + + } + } catch (JSONException e) { + Log.w(TAG, e.toString()); + e.printStackTrace(); + } + sqlNote.setContent(js); + + // 获取父文件夹ID + 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()); + } + + // 提交到本地数据库 + sqlNote.setGtaskId(node.getGid()); + sqlNote.commit(false); + + // 更新ID映射 + mGidToNid.put(node.getGid(), sqlNote.getId()); + mNidToGid.put(sqlNote.getId(), node.getGid()); + + // 更新元数据 + updateRemoteMeta(node.getGid(), sqlNote); + } + + // 更新本地任务（基于远程数据） + private void updateLocalNode(Node node, Cursor c) throws NetworkFailureException { + if (mCancelled) { + return; + } + + SqlNote sqlNote = new SqlNote(mContext, c); + sqlNote.setContent(node.getLocalJSONFromContent()); + + // 获取父文件夹ID + 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); + + // 更新元数据 + updateRemoteMeta(node.getGid(), sqlNote); + } + + // 新增本地任务到远程服务器 + private void addRemoteNode(Node node, Cursor c) throws NetworkFailureException { + if (mCancelled) { + return; + } + + SqlNote sqlNote = new SqlNote(mContext, c); + Node n; + + // 处理普通笔记 + if (sqlNote.isNoteType()) { + Task task = new Task(); + task.setContentByLocalJSON(sqlNote.getContent()); + + // 获取父任务列表GID + String parentGid = mNidToGid.get(sqlNote.getParentId()); + if (parentGid == null) { + Log.e(TAG, "cannot find task's parent tasklist"); + throw new ActionFailureException("cannot add remote task"); + } + mGTaskListHashMap.get(parentGid).addChildTask(task); + + // 创建远程任务 + GTaskClient.getInstance().createTask(task); + n = (Node) task; + + // 添加元数据 + updateRemoteMeta(task.getGid(), sqlNote); + } else { + // 处理文件夹 + TaskList tasklist = null; + 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(); + + // 检查文件夹是否已存在 + Iterator> iter = mGTaskListHashMap.entrySet().iterator(); + while (iter.hasNext()) { + Map.Entry 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; + } + } + + // 不存在则创建新文件夹 + if (tasklist == null) { + tasklist = new TaskList(); + tasklist.setContentByLocalJSON(sqlNote.getContent()); + GTaskClient.getInstance().createTaskList(tasklist); + mGTaskListHashMap.put(tasklist.getGid(), tasklist); + } + n = (Node) tasklist; + } + + // 更新本地笔记的GID + sqlNote.setGtaskId(n.getGid()); + sqlNote.commit(false); + sqlNote.resetLocalModified(); + sqlNote.commit(true); + + // 更新ID映射 + mGidToNid.put(n.getGid(), sqlNote.getId()); + mNidToGid.put(sqlNote.getId(), n.getGid()); + } + + // 更新远程任务（基于本地数据） + private void updateRemoteNode(Node node, Cursor c) throws NetworkFailureException { + if (mCancelled) { + return; + } + + SqlNote sqlNote = new SqlNote(mContext, c); + + // 更新远程任务内容 + node.setContentByLocalJSON(sqlNote.getContent()); + GTaskClient.getInstance().addUpdateNode(node); + + // 更新元数据 + updateRemoteMeta(node.getGid(), sqlNote); + + // 处理任务移动（如果父文件夹变更） + if (sqlNote.isNoteType()) { + Task task = (Task) node; + TaskList preParentList = task.getParent(); + + String curParentGid = mNidToGid.get(sqlNote.getParentId()); + if (curParentGid == null) { + Log.e(TAG, "cannot find task's parent tasklist"); + throw new ActionFailureException("cannot update remote task"); + } + TaskList curParentList = mGTaskListHashMap.get(curParentGid); + + if (preParentList != curParentList) { + preParentList.removeChildTask(task); + curParentList.addChildTask(task); + GTaskClient.getInstance().moveTask(task, preParentList, curParentList); + } + } + + // 清除本地修改标志 + sqlNote.resetLocalModified(); + sqlNote.commit(true); + } + + // 更新远程元数据 + 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); + } + } + } + + // 刷新本地同步ID（更新笔记的最后同步时间） + private void refreshLocalSyncId() throws NetworkFailureException { + if (mCancelled) { + return; + } + + // 重新获取最新任务列表 + 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"); + 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(); + values.put(NoteColumns.SYNC_ID, node.getLastModified()); + // 更新本地同步ID + mContentResolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, + 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; + } + } + } + + // 获取同步账户名 + public String getSyncAccount() { + return GTaskClient.getInstance().getSyncAccount().name; + } + + // 取消同步 + public void cancelSync() { + mCancelled = true; + } +} \ No newline at end of file diff --git a/GTaskSyncService.java b/GTaskSyncService.java new file mode 100644 index 0000000..387cbb1 --- /dev/null +++ b/GTaskSyncService.java @@ -0,0 +1,181 @@ + +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * 版权声明：本文件由MiCode开源社区开发，遵循Apache License, Version 2.0协议； + * 您仅在遵守协议的前提下使用本文件，完整协议可通过以下链接获取： + * http://www.apache.org/licenses/LICENSE-2.0 + * 注：未书面明确要求时，本软件按"原样"提供，不附带任何明示或暗示的保证。 + */ + +package net.micode.notes.gtask.remote; + +import android.app.Activity; +import android.app.Service; +import android.content.Context; +import android.content.Intent; +import android.os.Bundle; +import android.os.IBinder; + +/** + * Google任务同步服务类（后台服务组件） + * 负责管理同步任务的启动、取消，并通过广播通知外部同步状态（如是否同步中、进度信息） + */ +public class GTaskSyncService extends Service { + // 服务意图中传递的动作类型键名 + public final static String ACTION_STRING_NAME = "sync_action_type"; + // 动作类型：启动同步 + public final static int ACTION_START_SYNC = 0; + // 动作类型：取消同步 + public final static int ACTION_CANCEL_SYNC = 1; + // 动作类型：无效操作 + public final static int ACTION_INVALID = 2; + // 同步状态广播的Action名称（用于发送同步状态通知） + public final static String GTASK_SERVICE_BROADCAST_NAME = "net.micode.notes.gtask.remote.gtask_sync_service"; + // 广播中传递的"是否正在同步"键名 + public final static String GTASK_SERVICE_BROADCAST_IS_SYNCING = "isSyncing"; + // 广播中传递的"进度消息"键名 + public final static String GTASK_SERVICE_BROADCAST_PROGRESS_MSG = "progressMsg"; + + // 当前运行的异步同步任务实例（静态变量，全局唯一） + private static GTaskASyncTask mSyncTask = null; + // 当前同步进度的文本描述（静态变量，记录最新进度） + private static String mSyncProgress = ""; + + /** + * 启动同步任务（内部方法） + * 检查是否已有同步任务运行，若无则创建新任务并执行 + */ + private void startSync() { + if (mSyncTask == null) { // 避免重复启动同步任务 + // 创建异步任务实例，传入服务上下文和完成监听器 + mSyncTask = new GTaskASyncTask(this, new GTaskASyncTask.OnCompleteListener() { + @Override + public void onComplete() { + // 同步完成后：清空任务实例 -> 发送广播 -> 停止服务自身 + mSyncTask = null; + sendBroadcast(""); // 发送同步结束的广播（进度消息为空） + stopSelf(); // 停止当前服务 + } + }); + sendBroadcast(""); // 发送同步开始的广播（进度消息为空） + mSyncTask.execute(); // 执行异步同步任务（触发后台同步逻辑） + } + } + + /** + * 取消当前同步任务（内部方法） + * 若存在运行中的同步任务，则调用其取消方法 + */ + private void cancelSync() { + if (mSyncTask != null) { + mSyncTask.cancelSync(); // 触发异步任务的取消逻辑 + } + } + + /** + * 服务创建时的回调方法 + * 初始化成员变量（确保服务启动时无残留任务） + */ + @Override + public void onCreate() { + mSyncTask = null; // 清空同步任务实例 + } + + /** + * 处理服务启动命令的回调方法 + * 根据意图中传递的动作类型（启动/取消同步）执行对应操作 + * @param intent 启动服务的意图（可能携带动作类型参数） + * @param flags 启动标志（如START_FLAG_REDELIVERY） + * @param startId 服务启动的唯一ID + * @return 服务重启策略（此处返回START_STICKY，意外终止后自动重启） + */ + @Override + public int onStartCommand(Intent intent, int flags, int startId) { + Bundle bundle = intent.getExtras(); // 获取意图携带的参数包 + if (bundle != null && bundle.containsKey(ACTION_STRING_NAME)) { + // 根据动作类型执行操作 + switch (bundle.getInt(ACTION_STRING_NAME, ACTION_INVALID)) { + case ACTION_START_SYNC: // 启动同步 + startSync(); + break; + case ACTION_CANCEL_SYNC: // 取消同步 + cancelSync(); + break; + default: // 无效动作，不处理 + break; + } + return START_STICKY; // 服务意外终止后自动重启 + } + return super.onStartCommand(intent, flags, startId); + } + + /** + * 系统内存不足时的回调方法 + * 释放资源，取消当前同步任务以避免内存溢出 + */ + @Override + public void onLowMemory() { + if (mSyncTask != null) { + mSyncTask.cancelSync(); // 内存不足时强制取消同步任务 + } + } + + /** + * 绑定服务时的回调方法（本服务不支持绑定） + * @param intent 绑定意图 + * @return 始终返回null（表示不支持绑定） + */ + public IBinder onBind(Intent intent) { + return null; + } + + /** + * 发送同步状态广播（通知外部当前同步状态） + * @param msg 当前同步进度的文本描述（如"正在初始化任务列表..."） + */ + public void sendBroadcast(String msg) { + mSyncProgress = msg; // 更新全局进度信息 + Intent intent = new Intent(GTASK_SERVICE_BROADCAST_NAME); // 创建广播意图 + intent.putExtra(GTASK_SERVICE_BROADCAST_IS_SYNCING, mSyncTask != null); // 是否同步中（任务存在则为true） + intent.putExtra(GTASK_SERVICE_BROADCAST_PROGRESS_MSG, msg); // 传递进度消息 + sendBroadcast(intent); // 发送广播 + } + + /** + * 静态方法：外部调用启动同步服务 + * @param activity 启动服务的Activity上下文（用于设置GTaskManager的Activity引用） + */ + public static void startSync(Activity activity) { + GTaskManager.getInstance().setActivityContext(activity); // 设置GTaskManager的Activity（用于获取认证令牌） + Intent intent = new Intent(activity, GTaskSyncService.class); // 创建启动服务的意图 + intent.putExtra(GTaskSyncService.ACTION_STRING_NAME, GTaskSyncService.ACTION_START_SYNC); // 传递启动同步动作 + activity.startService(intent); // 启动服务 + } + + /** + * 静态方法：外部调用取消同步服务 + * @param context 上下文（用于启动服务） + */ + public static void cancelSync(Context context) { + Intent intent = new Intent(context, GTaskSyncService.class); // 创建启动服务的意图 + intent.putExtra(GTaskSyncService.ACTION_STRING_NAME, GTaskSyncService.ACTION_CANCEL_SYNC); // 传递取消同步动作 + context.startService(intent); // 启动服务（触发取消逻辑） + } + + /** + * 静态方法：检查当前是否正在同步 + * @return true表示同步中，false表示未同步 + */ + public static boolean isSyncing() { + return mSyncTask != null; // 通过任务实例是否存在判断 + } + + /** + * 静态方法：获取当前同步进度的文本描述 + * @return 进度消息字符串（如"正在同步笔记..."） + */ + public static String getProgressString() { + return mSyncProgress; // 返回全局进度变量 + } +} \ No newline at end of file