From a554890cc812fa127eb1bffd5d4374d9ed4ef5b8 Mon Sep 17 00:00:00 2001 From: pef3vtsy6 <2675173368@qq.com> Date: Mon, 30 Dec 2024 20:27:26 +0800 Subject: [PATCH] ADD file via upload --- GTaskManager.java | 830 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 830 insertions(+) create mode 100644 GTaskManager.java diff --git a/GTaskManager.java b/GTaskManager.java new file mode 100644 index 0000000..f56a717 --- /dev/null +++ b/GTaskManager.java @@ -0,0 +1,830 @@ +/* + * 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; + +// 导入所需的Android类和自定义类 + +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; + +// GTaskManager类用于管理与Google Tasks的同步操作 +public class GTaskManager { + // 定义日志标签 + private static final String TAG = GTaskManager.class.getSimpleName(); + + // 定义同步状态常量 + public static final int STATE_SUCCESS = 0; + public static final int STATE_NETWORK_ERROR = 1; + public static final int STATE_INTERNAL_ERROR = 2; + public static final int STATE_SYNC_IN_PROGRESS = 3; + public static final int STATE_SYNC_CANCELLED = 4; + + // 单例模式，GTaskManager的实例 + private static GTaskManager mInstance = null; + + // Activity和Context引用，用于访问Android系统服务 + private Activity mActivity; + private Context mContext; + + // ContentResolver用于访问和修改内容提供者中的数据 + private ContentResolver mContentResolver; + + // 同步状态标志 + private boolean mSyncing; + private boolean mCancelled; + + // 用于存储任务列表、任务和元数据的哈希映射 + private HashMap mGTaskListHashMap; + private HashMap mGTaskHashMap; + private HashMap mMetaHashMap; + + // 元数据列表 + private TaskList mMetaList; + + // 本地删除ID映射 + private HashSet mLocalDeleteIdMap; + + // GID到NID的映射 + private HashMap mGidToNid; + + // NID到GID的映射 + private HashMap mNidToGid; + + // 私有构造函数，确保单例模式 + 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GTaskManager的实例 + public static synchronized GTaskManager getInstance() { + if (mInstance == null) { + mInstance = new GTaskManager(); + } + return mInstance; + } + + // 设置Activity上下文 + public synchronized void setActivityContext(Activity activity) { + // 用于获取授权令牌 + mActivity = activity; + } + + // 同步方法，接受上下文和异步任务参数 + public int sync(Context context, GTaskASyncTask asyncTask) { + // 如果正在同步，则返回状态码 + if (mSyncing) { + Log.d(TAG, "Sync is in progress"); + return STATE_SYNC_IN_PROGRESS; + } + mContext = context; + mContentResolver = mContext.getContentResolver(); + mSyncing = true; + mCancelled = false; + // 清空哈希映射和集合 + mGTaskListHashMap.clear(); + mGTaskHashMap.clear(); + mMetaHashMap.clear(); + mLocalDeleteIdMap.clear(); + mGidToNid.clear(); + mNidToGid.clear(); + + try { + // 获取GTaskClient实例 + GTaskClient client = GTaskClient.getInstance(); + client.resetUpdateArray(); + + // 登录Google Tasks + if (!mCancelled) { + if (!client.login(mActivity)) { + throw new NetworkFailureException("login google task failed"); + } + } + + // 从Google获取任务列表 + asyncTask.publishProgess(mContext.getString(R.string.sync_progress_init_list)); + initGTaskList(); + + // 执行内容同步工作 + 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 { + // 清空哈希映射和集合 + mGTaskListHashMap.clear(); + mGTaskHashMap.clear(); + mMetaHashMap.clear(); + mLocalDeleteIdMap.clear(); + mGidToNid.clear(); + mNidToGid.clear(); + mSyncing = false; + } + + // 返回同步状态 + return mCancelled ? STATE_SYNC_CANCELLED : STATE_SUCCESS; + } + + // 初始化GTask列表 + private void initGTaskList() throws NetworkFailureException { + if (mCancelled) + return; + GTaskClient client = GTaskClient.getInstance(); + try { + // 获取任务列表JSON数组 + JSONArray jsTaskLists = client.getTaskLists(); + + // 首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); + + // 检查是否是元数据列表 + 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); + + // 检查是否是任务列表 + 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 + 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"); + } + } + + // 私有方法，用于同步内容，可能会抛出网络故障异常 +private void syncContent() throws NetworkFailureException { + int syncType; // 同步类型 + Cursor c = null; // 数据库游标 + String gid; // 用于存储全局ID + Node node; // 节点对象 + + mLocalDeleteIdMap.clear(); // 清除本地删除ID映射 + + if (mCancelled) { + return; // 如果取消同步，则直接返回 + } + + // 处理本地已删除的笔记 + 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); + 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; + } + } + + // 首先同步文件夹 + syncFolder(); + + // 处理数据库中存在的笔记 + 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) { + // 本地添加 + syncType = Node.SYNC_ACTION_ADD_REMOTE; + } else { + // 远程删除 + 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; + } + } + + // 处理剩余项 + Iterator> iter = mGTaskHashMap.entrySet().iterator(); + while (iter.hasNext()) { + Map.Entry entry = iter.next(); + node = entry.getValue(); + doContentSync(Node.SYNC_ACTION_ADD_LOCAL, node, null); + } + + // 如果没有被取消，则清除本地删除表 + if (!mCancelled) { + if (!DataUtils.batchDeleteNotes(mContentResolver, mLocalDeleteIdMap)) { + throw new ActionFailureException("failed to batch-delete local deleted notes"); + } + } + + // 如果没有被取消，则刷新本地同步ID + if (!mCancelled) { + GTaskClient.getInstance().commitUpdate(); + refreshLocalSyncId(); + } +} + +// 私有方法，用于同步文件夹，可能会抛出网络故障异常 +private void syncFolder() throws NetworkFailureException { + Cursor c = null; // 数据库游标 + String gid; // 用于存储全局ID + Node node; // 节点对象 + int syncType; // 同步类型 + + if (mCancelled) { + return; // 如果取消同步，则直接返回 + } + + // 处理根文件夹 + 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); + // 对于系统文件夹，只有在必要时才更新远程名称 + if (!node.getName().equals( + GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_DEFAULT)) + doContentSync(Node.SYNC_ACTION_UPDATE_REMOTE, node, c); + } else { + 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 + 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); + // 对于系统文件夹，只有在必要时才更新远程名称 + if (!node.getName().equals( + GTaskStringUtils.MIUI_FOLDER_PREFFIX + + GTaskStringUtils.FOLDER_CALL_NOTE)) + doContentSync(Node.SYNC_ACTION_UPDATE_REMOTE, node, c); + } else { + 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; + } + } + + // 处理本地存在的文件夹 + 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) { + // 本地添加 + syncType = Node.SYNC_ACTION_ADD_REMOTE; + } else { + // 远程删除 + 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; + } + } + + // 处理远程添加的文件夹 + 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(); +} + + // 同步内容的方法，根据同步类型（syncType）、节点（node）和游标（c）执行不同的同步操作 +private void doContentSync(int syncType, Node node, Cursor c) throws NetworkFailureException { + // 如果同步被取消，则直接返回 + if (mCancelled) { + return; + } + + // 根据不同的同步类型执行不同的操作 + MetaData meta; // 用于存储元数据 + switch (syncType) { + case Node.SYNC_ACTION_ADD_LOCAL: // 本地添加节点 + addLocalNode(node); + break; + case Node.SYNC_ACTION_ADD_REMOTE: // 远程添加节点 + addRemoteNode(node, c); + break; + case Node.SYNC_ACTION_DEL_LOCAL: // 本地删除节点 + meta = mMetaHashMap.get(c.getString(SqlNote.GTASK_ID_COLUMN)); // 获取元数据 + if (meta != null) { + GTaskClient.getInstance().deleteNode(meta); // 删除节点 + } + mLocalDeleteIdMap.add(c.getLong(SqlNote.ID_COLUMN)); // 添加到本地删除ID映射 + break; + case Node.SYNC_ACTION_DEL_REMOTE: // 远程删除节点 + meta = mMetaHashMap.get(node.getGid()); // 获取元数据 + if (meta != null) { + GTaskClient.getInstance().deleteNode(meta); // 删除节点 + } + GTaskClient.getInstance().deleteNode(node); // 删除节点 + break; + case Node.SYNC_ACTION_UPDATE_LOCAL: // 本地更新节点 + updateLocalNode(node, c); + break; + case Node.SYNC_ACTION_UPDATE_REMOTE: // 远程更新节点 + updateRemoteNode(node, c); + break; + case Node.SYNC_ACTION_UPDATE_CONFLICT: // 更新冲突，目前使用本地更新 + updateRemoteNode(node, c); + break; + case Node.SYNC_ACTION_NONE: // 无操作 + break; + case Node.SYNC_ACTION_ERROR: // 错误处理 + default: + throw new ActionFailureException("unknown sync action type"); // 抛出异常 + } +} + +// 本地添加节点的方法 +private void addLocalNode(Node node) throws NetworkFailureException { + // 如果同步被取消，则直接返回 + if (mCancelled) { + return; + } + + SqlNote sqlNote; // SQL笔记对象 + // 根据节点类型创建不同的SQL笔记对象 + if (node instanceof TaskList) { + // 处理任务列表 + 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()); // 设置内容 + sqlNote.setParentId(Notes.ID_ROOT_FOLDER); // 设置父ID + } + } else { + // 处理任务 + sqlNote = new SqlNote(mContext); + JSONObject js = node.getLocalJSONFromContent(); + try { + // 处理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); + } + } + } + + 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); // 设置内容 + + Long parentId = mGidToNid.get(((Task) node).getParent().getGid()); // 获取父ID + if (parentId == null) { + Log.e(TAG, "cannot find task's parent id locally"); + throw new ActionFailureException("cannot add local node"); + } + sqlNote.setParentId(parentId.longValue()); // 设置父ID + } + + // 创建本地节点 + sqlNote.setGtaskId(node.getGid()); // 设置GTask ID + sqlNote.commit(false); // 提交 + + // 更新GID-NID映射 + mGidToNid.put(node.getGid(), sqlNote.getId()); + mNidToGid.put(sqlNote.getId(), node.getGid()); + + // 更新元数据 + updateRemoteMeta(node.getGid(), sqlNote); +} + +// 本地更新节点的方法 +private void updateLocalNode(Node node, Cursor c) throws NetworkFailureException { + // 如果同步被取消，则直接返回 + if (mCancelled) { + return; + } + + SqlNote sqlNote; // SQL笔记对象 + // 更新本地笔记 + sqlNote = new SqlNote(mContext, c); + sqlNote.setContent(node.getLocalJSONFromContent()); // 设置内容 + + 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()); // 设置父ID + sqlNote.commit(true); // 提交 + + // 更新元数据信息 + updateRemoteMeta(node.getGid(), sqlNote); +} + +// 远程添加节点的方法 +private void addRemoteNode(Node node, Cursor c) throws NetworkFailureException { + // 如果同步被取消，则直接返回 + if (mCancelled) { + return; + } + + SqlNote sqlNote = new SqlNote(mContext, c); // SQL笔记对象 + Node n; // 节点对象 + + // 远程更新 + if (sqlNote.isNoteType()) { + Task task = new Task(); // 任务对象 + task.setContentByLocalJSON(sqlNote.getContent()); // 设置内容 + + String parentGid = mNidToGid.get(sqlNote.getParentId()); // 获取父GID + if (parentGid == null) { + Log.e(TAG, "cannot find task's parent tasklist"); + throw new ActionFailureException("cannot add remote task"); + } + mGTaskListHashMap.get(parentGid).addChildTask(task); // 添加任务到任务列表 + + GTaskClient.getInstance().createTask(task); // 创建任务 + n = (Node) task; // 转换为节点 + + // 添加元数据 + updateRemoteMeta(task.getGid(), sqlNote); + } else { + TaskList tasklist = null; // 任务列表对象 + + // 如果文件夹已存在，则跳过 + 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> 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; + } + } + + // 如果没有匹配，则添加 + if (tasklist == null) { + tasklist = new TaskList(); // 创建任务列表 + tasklist.setContentByLocalJSON(sqlNote.getContent()); // 设置内容 + GTaskClient.getInstance().createTaskList(tasklist); // 创建任务列表 + mGTaskListHashMap.put(tasklist.getGid(), tasklist); // 添加到映射 + } + n = (Node) tasklist; // 转换为节点 + } + + // 更新本地笔记 + sqlNote.setGtaskId(n.getGid()); // 设置GTask ID + sqlNote.commit(false); // 提交 + sqlNote.resetLocalModified(); // 重置本地修改标志 + sqlNote.commit(true); // 提交 + + // GID-ID映射 + mGidToNid.put(n.getGid(), sqlNote.getId()); + mNidToGid.put(sqlNote.getId(), n.getGid()); +} + +// 远程更新节点的方法 +private void updateRemoteNode(Node node, Cursor c) throws + +NetworkFailureException { +// 如果同步被取消，则直接返回 +if (mCancelled) { +return; +} + +SqlNote sqlNote = new SqlNote(mContext, c); // SQL笔记对象 + +// 远程更新 +node.setContentByLocalJSON(sqlNote.getContent()); // 设置内容 +GTaskClient.getInstance().addUpdateNode(node); // 更新节点 + +// 更新元数据 +updateRemoteMeta(node.getGid(), sqlNote); + +// 如果需要，移动任务 +if (sqlNote.isNoteType()) { + Task task = (Task) node; // 任务对象 + TaskList preParentList = task.getParent(); // 之前的父任务列表 + + String curParentGid = mNidToGid.get(sqlNote.getParentId()); // 当前的父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); // 当前的父任务列表 + + if (preParentList != curParentList) { + preParentList.removeChildTask(task); // 从之前的父任务列表中移除任务 + curParentList.addChildTask(task); // 添加到当前的父任务列表 + GTaskClient.getInstance().moveTask(task, preParentList, curParentList); // 移动任务 + } +} + +// 清除本地修改标志 +sqlNote.resetLocalModified(); +sqlNote.commit(true); +} + +// 更新远程元数据的方法 +private void updateRemoteMeta(String gid, SqlNote sqlNote) throws NetworkFailureException { +if (sqlNote != null && sqlNote.isNoteType()) { +MetaData metaData = mMetaHashMap.get(gid); // 获取元数据 +if (metaData != null) { +metaData.setMeta(gid, sqlNote.getContent()); // 设置元数据 +GTaskClient.getInstance().addUpdateNode(metaData); // 更新元数据 +} else { +metaData = new MetaData(); // 创建元数据对象 +metaData.setMeta(gid, sqlNote.getContent()); // 设置元数据 +mMetaList.addChildTask(metaData); // 添加到元数据列表 +mMetaHashMap.put(gid, metaData); // 添加到映射 +GTaskClient.getInstance().createTask(metaData); // 创建元数据 +} +} +} + +// 刷新本地同步ID的方法 +private void refreshLocalSyncId() throws NetworkFailureException { +if (mCancelled) { +return; +} + +// 获取最新的gtask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()); + 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; + } +} +} + +// 获取同步账户的方法 +public String getSyncAccount() { +return GTaskClient.getInstance().getSyncAccount().name; +} + +// 取消同步的方法 +public void cancelSync() { +mCancelled = true; +}