2201_75665698 8 months ago
parent 2cf0415a25
commit 94407f0156

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/*
* 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.data;
import android.database.Cursor;
import android.util.Log;
import net.micode.notes.tool.GTaskStringUtils;
import org.json.JSONException;
import org.json.JSONObject;
/**
* MetaData Task
* GID
*/
public class MetaData extends Task {
private final static String TAG = MetaData.class.getSimpleName(); // 用于日志记录的 TAG
private String mRelatedGid = null; // 用于存储与该任务关联的 GIDGoogle Task ID
/**
* Meta GID
*
* @param gid GID
* @param metaInfo JSON
*/
public void setMeta(String gid, JSONObject metaInfo) {
try {
// 将 GID 添加到 metaInfo 中
metaInfo.put(GTaskStringUtils.META_HEAD_GTASK_ID, gid);
} catch (JSONException e) {
// 如果发生异常,记录错误日志
Log.e(TAG, "failed to put related gid");
}
// 设置当前任务的备注信息为 metaInfo 的字符串表示
setNotes(metaInfo.toString());
// 设置任务名称为默认的 Meta 任务名称
setName(GTaskStringUtils.META_NOTE_NAME);
}
/**
* GID
*
* @return GID
*/
public String getRelatedGid() {
return mRelatedGid;
}
/**
*
* notes null
*
* @return true false
*/
@Override
public boolean isWorthSaving() {
return getNotes() != null;
}
/**
* JSON
* notes GID
*
* @param js JSON
*/
@Override
public void setContentByRemoteJSON(JSONObject js) {
// 调用父类的相应方法,设置基本的任务内容
super.setContentByRemoteJSON(js);
// 如果备注不为空,尝试解析其中的 GID 信息
if (getNotes() != null) {
try {
// 将备注内容转换为 JSON 对象
JSONObject metaInfo = new JSONObject(getNotes().trim());
// 从 metaInfo 中获取 GID 并存储
mRelatedGid = metaInfo.getString(GTaskStringUtils.META_HEAD_GTASK_ID);
} catch (JSONException e) {
// 如果解析失败,记录警告日志,并将 GID 设置为 null
Log.w(TAG, "failed to get related gid");
mRelatedGid = null;
}
}
}
/**
* IllegalAccessError
*
* @param js JSON
* @throws IllegalAccessError
*/
@Override
public void setContentByLocalJSON(JSONObject js) {
throw new IllegalAccessError("MetaData:setContentByLocalJSON should not be called");
}
/**
* IllegalAccessError
*
* @return
* @throws IllegalAccessError
*/
@Override
public JSONObject getLocalJSONFromContent() {
throw new IllegalAccessError("MetaData:getLocalJSONFromContent should not be called");
}
/**
* IllegalAccessError
*
* @param c
* @return
* @throws IllegalAccessError
*/
@Override
public int getSyncAction(Cursor c) {
throw new IllegalAccessError("MetaData:getSyncAction should not be called");
}
}

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// 该类是一个抽象类,作为节点的基类,可能用于同步操作相关的数据管理
public abstract class Node {
// 定义同步操作的各种状态码
public static final int SYNC_ACTION_NONE = 0;
public static final int SYNC_ACTION_ADD_REMOTE = 1;
public static final int SYNC_ACTION_ADD_LOCAL = 2;
public static final int SYNC_ACTION_DEL_REMOTE = 3;
public static final int SYNC_ACTION_DEL_LOCAL = 4;
public static final int SYNC_ACTION_UPDATE_REMOTE = 5;
public static final int SYNC_ACTION_UPDATE_LOCAL = 6;
public static final int SYNC_ACTION_UPDATE_CONFLICT = 7;
public static final int SYNC_ACTION_ERROR = 8;
// 节点的全局唯一标识符
private String mGid;
// 节点的名称
private String mName;
// 最后修改时间
private long mLastModified;
// 节点是否已删除的标记
private boolean mDeleted;
// 构造函数,初始化成员变量
public Node() {
mGid = null;
mName = "";
mLastModified = 0;
mDeleted = false;
}
// 获取创建操作的 JSON 对象,具体实现由子类完成
public abstract JSONObject getCreateAction(int actionId);
// 获取更新操作的 JSON 对象,具体实现由子类完成
public abstract JSONObject getUpdateAction(int actionId);
// 根据远程的 JSON 对象设置节点的内容,具体实现由子类完成
public abstract void setContentByRemoteJSON(JSONObject js);
// 根据本地的 JSON 对象设置节点的内容,具体实现由子类完成
public abstract void setContentByLocalJSON(JSONObject js);
// 从节点的内容获取本地的 JSON 对象,具体实现由子类完成
public abstract JSONObject getLocalJSONFromContent();
// 获取同步操作的状态,具体实现由子类完成
public abstract int getSyncAction(Cursor c);
// 设置节点的全局唯一标识符
public void setGid(String gid) {
this.mGid = gid;
}
// 设置节点的名称
public void setName(String name) {
this.mName = name;
}
// 设置节点的最后修改时间
public void setLastModified(long lastModified) {
this.mLastModified = lastModified;
}
// 设置节点是否已删除
public void setDeleted(boolean deleted) {
this.mDeleted = deleted;
}
// 获取节点的全局唯一标识符
public String getGid() {
return this.mGid;
}
// 获取节点的名称
public String getName() {
return this.mName;
}
// 获取节点的最后修改时间
public long getLastModified() {
return this.mLastModified;
}
// 获取节点是否已删除的信息
public boolean getDeleted() {
return this.mDeleted;
}
}

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// 该类用于处理与 SQL 数据相关的操作,可能是在笔记应用中对数据的管理和同步操作
public class SqlData {
// 日志标签,使用类的简单名称
private static final String TAG = SqlData.class.getSimpleName();
// 表示无效的 ID
private static final int INVALID_ID = -99999;
// 数据查询的投影,指定了需要查询的数据列
public static final String[] PROJECTION_DATA = new String[] {
DataColumns.ID, DataColumns.MIME_TYPE, DataColumns.CONTENT, DataColumns.DATA1,
DataColumns.DATA3
};
// 投影中数据 ID 列的索引
public static final int DATA_ID_COLUMN = 0;
// 投影中数据 MIME 类型列的索引
public static final int DATA_MIME_TYPE_COLUMN = 1;
// 投影中数据内容列的索引
public static final int DATA_CONTENT_COLUMN = 2;
// 投影中数据 DATA1 列的索引
public static final int DATA_CONTENT_DATA_1_COLUMN = 3;
// 投影中数据 DATA3 列的索引
public static final int DATA_CONTENT_DATA_3_COLUMN = 4;
// 用于解析和操作数据的内容解析器
private ContentResolver mContentResolver;
// 标记是否为创建操作
private boolean mIsCreate;
// 数据的 ID
private long mDataId;
// 数据的 MIME 类型
private String mDataMimeType;
// 数据的内容
private String mDataContent;
// 数据的 DATA1 内容
private long mDataContentData1;
// 数据的 DATA3 内容
private String mDataContentData3;
// 存储不同的数据值,可能用于更新操作
private ContentValues mDiffDataValues;
// 构造函数,用于创建新的数据对象,初始化成员变量
public SqlData(Context context) {
mContentResolver = context.getContentResolver();
mIsCreate = true;
mDataId = INVALID_ID;
mDataMimeType = DataConstants.NOTE;
mDataContent = "";
mDataContentData1 = 0;
mDataContentData3 = "";
mDiffDataValues = new ContentValues();
}
// 构造函数,根据 Cursor 初始化数据对象,用于从数据库中加载数据
public SqlData(Context context, Cursor c) {
mContentResolver = context.getContentResolver();
mIsCreate = false;
loadFromCursor(c);
mDiffDataValues = new ContentValues();
}
// 从 Cursor 中加载数据
private void loadFromCursor(Cursor c) {
mDataId = c.getLong(DATA_ID_COLUMN);
mDataMimeType = c.getString(DATA_MIME_TYPE_COLUMN);
mDataContent = c.getString(DATA_CONTENT_COLUMN);
mDataContentData1 = c.getLong(DATA_CONTENT_DATA_1_COLUMN);
mDataContentData3 = c.getString(DATA_CONTENT_DATA_3_COLUMN);
}
// 根据 JSON 对象设置数据内容
public void setContent(JSONObject js) throws JSONException {
long dataId = js.has(DataColumns.ID)? js.getLong(DataColumns.ID) : INVALID_ID;
if (mIsCreate || mDataId!= dataId) {
mDiffDataValues.put(DataColumns.ID, dataId);
}
mDataId = dataId;
String dataMimeType = js.has(DataColumns.MIME_TYPE)? js.getString(DataColumns.MIME_TYPE)
: DataConstants.NOTE;
if (mIsCreate ||!mDataMimeType.equals(dataMimeType)) {
mDiffDataValues.put(DataColumns.MIME_TYPE, dataMimeType);
}
mDataMimeType = dataMimeType;
String dataContent = js.has(DataColumns.CONTENT)? js.getString(DataColumns.CONTENT) : "";
if (mIsCreate ||!mDataContent.equals(dataContent)) {
mDiffDataValues.put(DataColumns.CONTENT, dataContent);
}
mDataContent = dataContent;
long dataContentData1 = js.has(DataColumns.DATA1)? js.getLong(DataColumns.DATA1) : 0;
if (mIsCreate || mDataContentData1!= dataContentData1) {
mDiffDataValues.put(DataColumns.DATA1, dataContentData1);
}
mDataContentData3 = dataContentData1;
String dataContentData3 = js.has(DataColumns.DATA3)? js.getString(DataColumns.DATA3) : "";
if (mIsCreate ||!mDataContentData3.equals(dataContentData3)) {
mDiffDataValues.put(DataColumns.DATA3, dataContentData3);
}
mDataContentData3 = dataContentData3;
}
// 获取数据的 JSON 表示
public JSONObject getContent() throws JSONException {
if (mIsCreate) {
Log.e(TAG, "it seems that we haven't created this in database yet");
return null;
}
JSONObject js = new JSONObject();
js.put(DataColumns.ID, mDataId);
js.put(DataColumns.MIME_TYPE, mDataMimeType);
js.put(DataColumns.CONTENT, mDataContent);
js.put(DataColumns.DATA1, mDataContentData1);
js.put(DataColumns.DATA3, mDataContentData3);
return js;
}
// 提交数据更改,根据情况进行插入或更新操作
public void commit(long noteId, boolean validateVersion, long version) {
if (mIsCreate) {
if (mDataId == INVALID_ID && mDiffDataValues.containsKey(DataColumns.ID)) {
mDiffDataValues.remove(DataColumns.ID);
}
mDiffDataValues.put(DataColumns.NOTE_ID, noteId);
Uri uri = mContentResolver.insert(Notes.CONTENT_DATA_URI, mDiffDataValues);
try {
mDataId = Long.valueOf(uri.getPathSegments().get(1));
} catch (NumberFormatException e) {
Log.e(TAG, "Get note id error :" + e.toString());
throw new ActionFailureException("create note failed");
}
} else {
if (mDiffDataValues.size() > 0) {
int result = 0;
if (!validateVersion) {
result = mContentResolver.update(ContentUris.withAppendedId(
Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues, null, null);
} else {
result = mContentResolver.update(ContentUris.withAppendedId(
Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues,
"? in (SELECT " + NoteColumns.ID + " FROM " + TABLE.NOTE
+ " WHERE " + NoteColumns.VERSION + "=?)", new String[] {
String.valueOf(noteId), String.valueOf(version)
});
}
if (result == 0) {
Log.w(TAG, "there is no update. maybe user updates note when syncing");
}
}
}
mDiffDataValues.clear();
mIsCreate = false;
}
// 获取数据的 ID
public long getId() {
return mDataId;
}
}

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// 该类用于管理 SQL 笔记的数据操作,可能是在笔记应用中对笔记信息的管理和同步操作
public class SqlNote {
// 日志标签,使用类的简单名称
private static final String TAG = SqlNote.class.getSimpleName();
// 表示无效的 ID
private static final int INVALID_ID = -99999;
// 笔记查询的投影,指定了需要查询的笔记列
public static final String[] PROJECTION_NOTE = new String[] {
NoteColumns.ID, NoteColumns.ALERTED_DATE, NoteColumns.BG_COLOR_ID,
NoteColumns.CREATED_DATE, NoteColumns.HAS_ATTACHMENT, NoteColumns.MODIFIED_DATE,
NoteColumns.NOTES_COUNT, NoteColumns.PARENT_ID, NoteColumns.SNIPPET, NoteColumns.TYPE,
NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE, NoteColumns.SYNC_ID,
NoteColumns.LOCAL_MODIFIED, NoteColumns.ORIGIN_PARENT_ID, NoteColumns.GTASK_ID,
NoteColumns.VERSION
};
// 投影中笔记 ID 列的索引
public static final int ID_COLUMN = 0;
// 投影中提醒日期列的索引
public static final int ALERTED_DATE_COLUMN = 1;
// 投影中背景颜色 ID 列的索引
public static final int BG_COLOR_ID_COLUMN = 2;
// 投影中创建日期列的索引
public static final int CREATED_DATE_COLUMN = 3;
// 投影中有附件标记列的索引
public static final int HAS_ATTACHMENT_COLUMN = 4;
// 投影中修改日期列的索引
public static final int MODIFIED_DATE_COLUMN = 5;
// 投影中笔记计数列的索引
public static final int NOTES_COUNT_COLUMN = 6;
// 投影中父 ID 列的索引
public static final int PARENT_ID_COLUMN = 7;
// 投影中摘要列的索引
public static final int SNIPPET_COLUMN = 8;
// 投影中类型列的索引
public static final int TYPE_COLUMN = 9;
// 投影中窗口小部件 ID 列的索引
public static final int WIDGET_ID_COLUMN = 10;
// 投影中窗口小部件类型列的索引
public static final int WIDGET_TYPE_COLUMN = 11;
// 投影中同步 ID 列的索引
public static final int SYNC_ID_COLUMN = 12;
// 投影中本地修改标记列的索引
public static final int LOCAL_MODIFIED_COLUMN = 13;
// 投影中原父 ID 列的索引
public static final int ORIGIN_PARENT_ID_COLUMN = 14;
// 投影中 GTASK ID 列的索引
public static final int GTASK_ID_COLUMN = 15;
// 投影中版本列的索引
public static final int VERSION_COLUMN = 16;
// 上下文对象,用于获取系统服务等
private Context mContext;
// 内容解析器,用于操作内容提供者的数据
private ContentResolver mContentResolver;
// 标记是否为创建操作
private boolean mIsCreate;
// 笔记的 ID
private long mId;
// 笔记的提醒日期
private long mAlertDate;
// 笔记的背景颜色 ID
private int mBgColorId;
// 笔记的创建日期
private long mCreatedDate;
// 笔记是否有附件的标记
private int mHasAttachment;
// 笔记的修改日期
private long mModifiedDate;
// 笔记的父 ID
private long mParentId;
// 笔记的摘要
private String mSnippet;
// 笔记的类型
private int mType;
// 笔记关联的窗口小部件 ID
private int mWidgetId;
// 笔记关联的窗口小部件类型
private int mWidgetType;
// 笔记的原父 ID
private long mOriginParent;
// 笔记的版本
private long mVersion;
// 存储不同的笔记数据值,可能用于更新操作
private ContentValues mDiffNoteValues;
// 存储 SqlData 列表,可能用于存储笔记的数据内容
private ArrayList<SqlData> mDataList;
// 构造函数,用于创建新的笔记对象,初始化成员变量
public SqlNote(Context context) {
mContext = context;
mContentResolver = context.getContentResolver();
mIsCreate = true;
mId = INVALID_ID;
mAlertDate = 0;
mBgColorId = ResourceParser.getDefaultBgId(context);
mCreatedDate = System.currentTimeMillis();
mHasAttachment = 0;
mModifiedDate = System.currentTimeMillis();
mParentId = 0;
mSnippet = "";
mType = Notes.TYPE_NOTE;
mWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID;
mWidgetType = Notes.TYPE_WIDGET_INVALIDE;
mOriginParent = 0;
mVersion = 0;
mDiffNoteValues = new ContentValues();
mDataList = new ArrayList<SqlData>();
}
// 构造函数,根据 Cursor 初始化笔记对象,用于从数据库中加载笔记信息
public SqlNote(Context context, Cursor c) {
mContext = context;
mContentResolver = context.getContentResolver();
mIsCreate = false;
loadFromCursor(c);
mDataList = new ArrayList<SqlData>();
if (mType == Notes.TYPE_NOTE)
loadDataContent();
mDiffNoteValues = new ContentValues();
}
// 构造函数,根据笔记 ID 初始化笔记对象,从数据库中加载笔记信息
public SqlNote(Context context, long id) {
mContext = context;
mContentResolver = context.getContentResolver();
mIsCreate = false;
loadFromCursor(id);
mDataList = new ArrayList<SqlData>();
if (mType == Notes.TYPE_NOTE)
loadDataContent();
mDiffNoteValues = new ContentValues();
}
// 从指定的笔记 ID 加载笔记信息
private void loadFromCursor(long id) {
Cursor c = null;
try {
c = mContentResolver.query(Notes.CONTENT_NOTE_URI, PROJECTION_NOTE, "(_id=?)",
new String[] {
String.valueOf(id)
}, null);
if (c!= null) {
c.moveToNext();
loadFromCursor(c);
} else {
Log.w(TAG, "loadFromCursor: cursor = null");
}
} finally {
if (c!= null)
c.close();
}
}
// 从 Cursor 中加载笔记信息
private void loadFromCursor(Cursor c) {
mId = c.getLong(ID_COLUMN);
mAlertDate = c.getLong(ALERTED_DATE_COLUMN);
mBgColorId = c.getInt(BG_COLOR_ID_COLUMN);
mCreatedDate = c.getLong(CREATED_DATE_COLUMN);
mHasAttachment = c.getInt(HAS_ATTACHMENT_COLUMN);
mModifiedDate = c.getLong(MODIFIED_DATE_COLUMN);
mParentId = c.getLong(PARENT_ID_COLUMN);
mSnippet = c.getString(SNIPPET_COLUMN);
mType = c.getInt(TYPE_COLUMN);
mWidgetId = c.getInt(WIDGET_ID_COLUMN);
mWidgetType = c.getInt(WIDGET_TYPE_COLUMN);
mVersion = c.getLong(VERSION_COLUMN);
}
// 加载笔记的数据内容
private void loadDataContent() {
Cursor c = null;
mDataList.clear();
try {
c = mContentResolver.query(Notes.CONTENT_DATA_URI, SqlData.PROJECTION_DATA,
"(note_id=?)", new String[] {
String.valueOf(mId)
}, null);
if (c!= null) {
if (c.getCount() == 0) {
Log.w(TAG, "it seems that the note has not data");
return;
}
while (c.moveToNext()) {
SqlData data = new SqlData(mContext, c);
mDataList.add(data);
}
} else {
Log.w(TAG, "loadDataContent: cursor = null");
}
} finally {
if (c!= null)
c.close();
}
}
// 根据 JSON 对象设置笔记内容
public boolean setContent(JSONObject js) {
try {
JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_SYSTEM) {
Log.w(TAG, "cannot set system folder");
} else if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_FOLDER) {
// 对于文件夹,仅更新摘要和类型
String snippet = note.has(NoteColumns.SNIPPET)? note
.getString(NoteColumns.SNIPPET) : "";
if (mIsCreate ||!mSnippet.equals(snippet)) {
mDiffNoteValues.put(NoteColumns.SNIPPET, snippet);
}
mSnippet = snippet;
int type = note.has(NoteColumns.TYPE)? note.getInt(NoteColumns.TYPE)
: Notes.TYPE_NOTE;
if (mIsCreate || mType!= type) {
mDiffNoteValues.put(NoteColumns.TYPE, type);
}
mType = type;
} else if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_NOTE) {
JSONArray dataArray = js.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
long id = note.has(NoteColumns.ID)? note.getLong(NoteColumns.ID) : INVALID_ID;
if (mIsCreate || mId!= id) {
mDiffNoteValues.put(NoteColumns.ID, id);
}
mId = id;
long alertDate = note.has(NoteColumns.ALERTED_DATE)? note
.getLong(NoteColumns.ALERTED_DATE) : 0;
if (mIsCreate || mAlertDate!= alertDate) {
mDiffNoteValues.put(NoteColumns.ALERTED_DATE, alertDate);
}
mAlertDate = alertDate;
int bgColorId = note.has(NoteColumns.BG_COLOR_ID)? note
.getInt(NoteColumns.BG_COLOR_ID) : ResourceParser.getDefaultBgId(mContext);
if (mIsCreate || mBgColorId!= bgColorId) {
mDiffNoteValues.put(NoteColumns.BG_COLOR_ID, bgColorId);
}
mBgColorId = bgColorId;
long createDate = note.has(NoteColumns.CREATED_DATE)? note
.getLong(NoteColumns.CREATED_DATE) : System.currentTimeMillis();
if (mIsCreate || mCreatedDate!= createDate) {
mDiffNoteValues.put(NoteColumns.CREATED_DATE, createDate);
}
mCreatedDate = createDate;
int hasAttachment = note.has(NoteColumns.HAS_ATTACHMENT)? note
.getInt(NoteColumns.HAS_ATTACHMENT) : 0;
if (mIsCreate || mHasAttachment!= hasAttachment) {
mDiffNoteValues.put(NoteColumns.HAS_ATTACHMENT, hasAttachment);
}
mHasAttachment = hasAttachment;
long modifiedDate = note.has(NoteColumns.MODIFIED_DATE)? note
.getLong(NoteColumns.MODIFIED_DATE) : System.currentTimeMillis();
if (mIsCreate || mModifiedDate!= modifiedDate) {
mDiffNoteValues.put(NoteColumns.MODIFIED_DATE, modifiedDate);
}
mModifiedDate = modifiedDate;
long parentId = note.has(NoteColumns.PARENT_ID)? note
.getLong(NoteColumns.PARENT_ID) : 0;
if (mIsCreate || mParentId!= parentId) {
mDiffNoteValues.put(NoteColumns.PARENT_ID, parentId);
}
mParentId = parentId;
String snippet = note.has(NoteColumns.SNIPPET)? note
.getString(NoteColumns.SNIPPET) : "";
if (mIsCreate ||!mSnippet.equals(snippet)) {
mDiffNoteValues.put(NoteColumns.SNIPPET, snippet);
}
mSnippet = snippet;
int type = note.has(NoteColumns.TYPE)? note.getInt(NoteColumns.TYPE)
: Notes.TYPE_NOTE;
if (mIsCreate || mType!= type) {
mDiffNoteValues.put(NoteColumns.TYPE, type);
}
mType = type;
int widgetId = note.has(NoteColumns.WIDGET_ID)? note.getInt(NoteColumns.WIDGET_ID)
: AppWidgetManager.INVALID_APPWIDGET_ID;
if (mIsCreate || mWidgetId!= widgetId) {
mDiffNoteValues.put(NoteColumns.WIDGET_ID, widgetId);
}
mWidgetId = widgetId;
int widgetType = note.has(NoteColumns.WIDGET_TYPE)? note
.getInt(NoteColumns.WIDGET_TYPE) : Notes.TYPE_WIDGET_INVALIDE;
if (mIsCreate || mWidgetType!= widgetType) {
mDiffNoteValues.put(NoteColumns.WIDGET_TYPE, widgetType);
}
mWidgetType = widgetType;
long originParent = note.has(NoteColumns.ORIGIN_PARENT_ID)? note
.getLong(NoteColumns.ORIGIN_PARENT_ID) : 0;
if (mIsCreate || mOriginParent!= originParent) {
mDiffNoteValues.put(NoteColumns.ORIGIN_PARENT_ID, originParent);
}
mOriginParent = originParent;
for (int i = 0; i < dataArray.length(); i++) {
JSONObject data = dataArray.getJSONObject(i);
SqlData sqlData = null;
if (data.has(DataColumns.ID)) {
long dataId = data.getLong(DataColumns.ID);
for (SqlData temp : mDataList) {
if (dataId == temp.getId()) {
sqlData = temp;
}
}
}
if (sqlData == null) {
sqlData = new SqlData(mContext);
mDataList.add(sqlData);
}
sqlData.setContent(data);
}
}
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
return false;
}
return true;
}
// 获取笔记的 JSON 表示
public JSONObject getContent() {
try {
JSONObject js = new JSONObject();
if (mIsCreate) {
Log.e(TAG, "it seems that we haven't created this in database yet");
return null;
}
JSONObject note = new JSONObject();
if (mType == Notes.TYPE_NOTE) {
note.put(NoteColumns.ID, mId);
note.put(NoteColumns.ALERTED_DATE, mAlertDate);
note.put(NoteColumns.BG_COLOR_ID, mBgColorId);
note.put(NoteColumns.CREATED_DATE, mCreatedDate);
note.put(NoteColumns.HAS_ATTACHMENT, mHasAttachment);
note.put(NoteColumns.MODIFIED_DATE, mModifiedDate);
note.put(NoteColumns.PARENT_ID, mParentId);
note.put(NoteColumns.SNIPPET, mSnippet);
note.put(NoteColumns.TYPE, mType);
note.put(NoteColumns.WIDGET_ID, mWidgetId);
note.put(NoteColumns.WIDGET_TYPE, mWidgetType);
note.put(NoteColumns.ORIGIN_PARENT_ID, mOriginParent);
js.put(GTaskStringUtils.META_HEAD_NOTE, note);
JSONArray dataArray = new JSONArray();
for (SqlData sqlData : mDataList) {
JSONObject data = sqlData.getContent();
if (data!= null) {
dataArray.put(data);
}
}
js.put(GTaskStringUtils.META_HEAD_DATA, dataArray);
} else if (mType == Notes.TYPE_FOLDER || mType == Notes.TYPE_SYSTEM) {
note.put(NoteColumns.ID, mId);
note.put(NoteColumns.TYPE, mType);
note.put(NoteColumns.SNIPPET, mSnippet);
js.put(GTaskStringUtils.META_HEAD_NOTE, note);
}
return js;
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
}
return null;
}
// 设置笔记的父 ID
public void setParentId(long id) {
mParentId = id;
mDiffNoteValues.put(NoteColumns.PARENT_ID, id);
}
// 设置笔记的 GTASK ID
public void setGtaskId(String gid) {
mDiffNoteValues.put(NoteColumns.GTASK_ID, gid);
}
// 设置笔记的同步 ID
public void setSyncId(long syncId) {
mDiffNoteValues.put(NoteColumns.SYNC_ID, syncId);
}
// 重置本地修改标记
public void resetLocalModified() {
mDiffNoteValues.put(NoteColumns.LOCAL_MODIFIED, 0);
}
// 获取笔记的 ID
public long getId() {
return mId;
}
// 获取笔记的父 ID
public long getParentId() {
return mParentId;
}
// 获取笔记的摘要
public String getSnippet() {
return mSnippet;
}
// 判断是否为笔记类型
public boolean isNoteType() {
return mType == Notes.TYPE_NOTE;
}
// 提交笔记的更改,根据是否为创建操作进行插入或更新操作
public void commit(boolean validateVersion) {
if (mIsCreate) {
if (mId == INVALID_ID && mDiffNoteValues.containsKey(NoteColumns.ID)) {
mDiffNoteValues.remove(NoteColumns.ID);
}
Uri uri = mContentResolver.insert(Notes.CONTENT_NOTE_URI, mDiffNoteValues);
try {
mId = Long.valueOf(uri.getPathSegments().get(1));
} catch (NumberFormatException e) {
Log.e(TAG, "Get note id error :" + e.toString());
throw new ActionFailureException("create note failed");
}
if (mId == 0) {
throw new IllegalStateException("Create thread id failed");
}
if (mType == Notes.TYPE_NOTE) {
for (SqlData sqlData : mDataList) {
sqlData.commit(mId, false, -1);
}
}
} else {
if (mId <= 0 && mId!= Notes.ID_ROOT_FOLDER && mId!= Notes.ID_CALL_RECORD_FOLDER) {
Log.e(TAG, "No such note");
throw new IllegalStateException("Try to update note with invalid id");
}
if (mDiffNoteValues.size() > 0) {
mVersion++;
int result = 0;
if (!validateVersion) {
result = mContentResolver.update(Notes.CONTENT_NOTE_URI, mDiffNoteValues, "("
+ NoteColumns.ID + "=?)", new String[] {
String.valueOf(mId)
});
} else {
result = mContentResolver.update(Notes.CONTENT_NOTE_URI, mDiffNoteValues, "("
+ NoteColumns.ID + "=?) AND (" + NoteColumns.VERSION + "<=?)",
new String[] {
String.valueOf(mId), String.valueOf(mVersion)
});
}
if (result == 0) {
Log.w(TAG, "there is no update. maybe user updates note when syncing");
}
}
if (mType == Notes.TYPE_NOTE) {
for (SqlData sqlData : mDataList) {
sqlData.commit(mId, validateVersion, mVersion);
}
}
}
// 刷新本地信息
loadFromCursor(mId);
if (mType == Notes.TYPE_NOTE)
loadDataContent();
mDiffNoteValues.clear();
mIsCreate = false;
}
}

@ -0,0 +1,385 @@
// 该类 Task 继承自 Node 类,是一个表示任务的类,可能用于任务管理和同步操作
public class Task extends Node {
// 日志标签,使用类的简单名称
private static final String TAG = Task.class.getSimpleName();
// 标记任务是否完成
private boolean mCompleted;
// 任务的笔记信息
private String mNotes;
// 任务的元信息,存储为 JSONObject
private JSONObject mMetaInfo;
// 任务的前一个兄弟任务
private Task mPriorSibling;
// 任务所属的任务列表
private TaskList mParent;
// 构造函数,初始化任务的属性
public Task() {
super();
mCompleted = false;
mNotes = null;
mPriorSibling = null;
mParent = null;
mMetaInfo = null;
}
// 获取创建操作的 JSON 对象
public JSONObject getCreateAction(int actionId) {
JSONObject js = new JSONObject();
try {
// action_type
js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
GTaskStringUtils.GTASK_JSON_ACTION_TYPE_CREATE);
// action_id
js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId);
// index
js.put(GTaskStringUtils.GTASK_JSON_INDEX, mParent.getChildTaskIndex(this));
// entity_delta
JSONObject entity = new JSONObject();
entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName());
entity.put(GTaskStringUtils.GTASK_JSON_CREATOR_ID, "null");
entity.put(GTaskStringUtils.GTASK_JSON_ENTITY_TYPE,
GTaskStringUtils.GTASK_JSON_TYPE_TASK);
if (getNotes()!= null) {
entity.put(GTaskStringUtils.GTASK_JSON_NOTES, getNotes());
}
js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity);
// parent_id
js.put(GTaskStringUtils.GTASK_JSON_PARENT_ID, mParent.getGid());
// dest_parent_type
js.put(GTaskStringUtils.GTASK_JSON_DEST_PARENT_TYPE,
GTaskStringUtils.GTASK_JSON_TYPE_GROUP);
// list_id
js.put(GTaskStringUtils.GTASK_JSON_LIST_ID, mParent.getGid());
// prior_sibling_id
if (mPriorSibling!= null) {
js.put(GTaskStringUtils.GTASK_JSON_PRIOR_SIBLING_ID, mPriorSibling.getGid());
}
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("fail to generate task-create jsonobject");
}
return js;
}
// 获取更新操作的 JSON 对象
public JSONObject getUpdateAction(int actionId) {
JSONObject js = new JSONObject();
try {
// action_type
js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
GTaskStringUtils.GTASK_JSON_ACTION_TYPE_UPDATE);
// action_id
js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId);
// id
js.put(GTaskStringUtils.GTASK_JSON_ID, getGid());
// entity_delta
JSONObject entity = new JSONObject();
entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName());
if (getNotes()!= null) {
entity.put(GTaskStringUtils.GTASK_JSON_NOTES, getNotes());
}
entity.put(GTaskStringUtils.GTASK_JSON_DELETED, getDeleted());
js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity);
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("fail to generate task-update jsonobject");
}
return js;
}
// 根据远程的 JSON 对象设置任务的内容
public void setContentByRemoteJSON(JSONObject js) {
if (js!= null) {
try {
// id
if (js.has(GTaskStringUtils.GTASK_JSON_ID)) {
setGid(js.getString(GTaskStringUtils.GTASK_JSON_ID));
}
// last_modified
if (js.has(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)) {
setLastModified(js.getLong(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED));
}
// name
if (js.has(GTaskStringUtils.GTASK_JSON_NAME)) {
setName(js.getString(GTaskStringUtils.GTASK_JSON_NAME));
}
// notes
if (js.has(GTaskStringUtils.GTASK_JSON_NOTES)) {
setNotes(js.getString(GTaskStringUtils.GTASK_JSON_NOTES));
}
// deleted
if (js.has(GTaskStringUtils.GTASK_JSON_DELETED)) {
setDeleted(js.getBoolean(GTaskStringUtils.GTASK_JSON_DELETED));
}
// completed
if (js.has(GTaskStringUtils.GTASK_JSON_COMPLETED)) {
setCompleted(js.getBoolean(GTaskStringUtils.GTASK_JSON_COMPLETED));
}
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("fail to get task content from jsonobject");
}
}
}
// 根据本地的 JSON 对象设置任务的内容
public void setContentByLocalJSON(JSONObject js) {
if (js == null ||!js.has(GTaskStringUtils.META_HEAD_NOTE)
||!js.has(GTaskStringUtils.META_HEAD_DATA)) {
Log.w(TAG, "setContentByLocalJSON: nothing is avaiable");
}
try {
JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
JSONArray dataArray = js.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
if (note.getInt(NoteColumns.TYPE)!= Notes.TYPE_NOTE) {
Log.e(TAG, "invalid type");
return;
}
for (int i = 0; i < dataArray.length(); i++) {
JSONObject data = dataArray.getJSONObject(i);
if (TextUtils.equals(data.getString(DataColumns.MIME_TYPE), DataConstants.NOTE)) {
setName(data.getString(DataColumns.CONTENT));
break;
}
}
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
}
}
// 从任务的内容获取本地的 JSON 对象
public JSONObject getLocalJSONFromContent() {
String name = getName();
try {
if (mMetaInfo == null) {
// 新创建的任务
if (name == null) {
Log.w(TAG, "the note seems to be an empty one");
return null;
}
JSONObject js = new JSONObject();
JSONObject note = new JSONObject();
JSONArray dataArray = new JSONArray();
JSONObject data = new JSONObject();
data.put(DataColumns.CONTENT, name);
dataArray.put(data);
js.put(GTaskStringUtils.META_HEAD_DATA, dataArray);
note.put(NoteColumns.TYPE, Notes.TYPE_NOTE);
js.put(GTaskStringUtils.META_HEAD_NOTE, note);
return js;
} else {
// 已同步的任务
JSONObject note = mMetaInfo.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
JSONArray dataArray = mMetaInfo.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
for (int i = 0; i < dataArray.length(); i++) {
JSONObject data = dataArray.getJSONObject(i);
if (TextUtils.equals(data.getString(DataColumns.MIME_TYPE), DataConstants.NOTE)) {
data.put(DataColumns.CONTENT, getName());
break;
}
}
note.put(NoteColumns.TYPE, Notes.TYPE_NOTE);
return mMetaInfo;
}
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
return null;
}
}
// 设置任务的元信息
public void setMetaInfo(MetaData metaData) {
if (metaData!= null && metaData.getNotes()!= null) {
try {
mMetaInfo = new JSONObject(metaData.getNotes());
} catch (JSONException e) {
Log.w(TAG, e.toString());
mMetaInfo = null;
}
}
}
// 获取同步操作的状态
public int getSyncAction(Cursor c) {
try {
JSONObject noteInfo = null;
if (mMetaInfo!= null && mMetaInfo.has(GTaskStringUtils.META_HEAD_NOTE)) {
noteInfo = mMetaInfo.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
}
if (noteInfo == null) {
Log.w(TAG, "it seems that note meta has been deleted");
return SYNC_ACTION_UPDATE_REMOTE;
}
if (!noteInfo.has(NoteColumns.ID)) {
Log.w(TAG, "remote note id seems to be deleted");
return SYNC_ACTION_UPDATE_LOCAL;
}
// 验证笔记的 ID
if (c.getLong(SqlNote.ID_COLUMN)!= noteInfo.getLong(NoteColumns.ID)) {
Log.w(TAG, "note id doesn't match");
return SYNC_ACTION_UPDATE_LOCAL;
}
if (c.getInt(SqlNote.LOCAL_MODIFIED_COLUMN) == 0) {
// 本地没有更新
if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) {
// 两边都没有更新
return SYNC_ACTION_NONE;
} else {
// 将远程更新应用到本地
return SYNC_ACTION_UPDATE_LOCAL;
}
} else {
// 验证 gtask 的 ID
if (!c.getString(SqlNote.GTASK_ID_COLUMN).equals(getGid())) {
Log.e(TAG, "gtask id doesn't match");
return SYNC_ACTION_ERROR;
}
if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) {
// 仅本地修改
return SYNC_ACTION_UPDATE_REMOTE;
} else {
return SYNC_ACTION_UPDATE_CONFLICT;
}
}
} catch (Exception e) {
Log.e(TAG, e.toString());
e.printStackTrace();
}
return SYNC_ACTION_ERROR;
}
// 判断任务是否值得保存
public boolean isWorthSaving() {
return mMetaInfo!= null || (getName()!= null && getName().trim().length() > 0)
|| (getNotes()!= null && getNotes().trim().length() > 0);
}
// 设置任务完成状态
public void setCompleted(boolean completed) {
this.mCompleted = completed;
}
// 设置任务的笔记信息
public void setNotes(String notes) {
this.mNotes = notes;
}
// 设置任务的前一个兄弟任务
public void setPriorSibling(Task priorSibling) {
this.mPriorSibling = priorSibling;
}
// 设置任务的父任务列表
public void setParent(TaskList parent) {
this.mParent = parent;
}
// 获取任务完成状态
public boolean getCompleted() {
return this.mCompleted;
}
// 获取任务的笔记信息
public String getNotes() {
return this.mNotes;
}
// 获取任务的前一个兄弟任务
public Task getPriorSibling() {
return this.mPriorSibling;
}
// 获取任务的父任务列表
public TaskList getParent() {
return this.mParent;
}
}

@ -0,0 +1,381 @@
// 该类 TaskList 继承自 Node 类,是一个表示任务列表的类,用于管理任务列表及其相关操作
public class TaskList extends Node {
// 日志标签,使用类的简单名称
private static final String TAG = TaskList.class.getSimpleName();
// 任务列表的索引
private int mIndex;
// 存储任务列表中的任务
private ArrayList<Task> mChildren;
// 构造函数,初始化任务列表,创建一个空的任务列表并设置初始索引
public TaskList() {
super();
mChildren = new ArrayList<Task>();
mIndex = 1;
}
// 获取创建操作的 JSON 对象
public JSONObject getCreateAction(int actionId) {
JSONObject js = new JSONObject();
try {
// action_type
js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
GTaskStringUtils.GTASK_JSON_ACTION_TYPE_CREATE);
// action_id
js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId);
// index
js.put(GTaskStringUtils.GTASK_JSON_INDEX, mIndex);
// entity_delta
JSONObject entity = new JSONObject();
entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName());
entity.put(GTaskStringUtils.GTASK_JSON_CREATOR_ID, "null");
entity.put(GTaskStringUtils.GTASK_JSON_ENTITY_TYPE,
GTaskStringUtils.GTASK_JSON_TYPE_GROUP);
js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity);
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("fail to generate tasklist-create jsonobject");
}
return js;
}
// 获取更新操作的 JSON 对象
public JSONObject getUpdateAction(int actionId) {
JSONObject js = new JSONObject();
try {
// action_type
js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
GTaskStringUtils.GTASK_JSON_ACTION_TYPE_UPDATE);
// action_id
js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId);
// id
js.put(GTaskStringUtils.GTASK_JSON_ID, getGid());
// entity_delta
JSONObject entity = new JSONObject();
entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName());
entity.put(GTaskStringUtils.GTASK_JSON_DELETED, getDeleted());
js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity);
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("fail to generate tasklist-update jsonobject");
}
return js;
}
// 根据远程的 JSON 对象设置任务列表的内容
public void setContentByRemoteJSON(JSONObject js) {
if (js!= null) {
try {
// id
if (js.has(GTaskStringUtils.GTASK_JSON_ID)) {
setGid(js.getString(GTaskStringUtils.GTASK_JSON_ID));
}
// last_modified
if (js.has(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)) {
setLastModified(js.getLong(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED));
}
// name
if (js.has(GTaskStringUtils.GTASK_JSON_NAME)) {
setName(js.getString(GTaskStringUtils.GTASK_JSON_NAME));
}
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("fail to get tasklist content from jsonobject");
}
}
}
// 根据本地的 JSON 对象设置任务列表的内容
public void setContentByLocalJSON(JSONObject js) {
if (js == null ||!js.has(GTaskStringUtils.META_HEAD_NOTE)) {
Log.w(TAG, "setContentByLocalJSON: nothing is avaiable");
}
try {
JSONObject folder = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
if (folder.getInt(NoteColumns.TYPE) == Notes.TYPE_FOLDER) {
String name = folder.getString(NoteColumns.SNIPPET);
setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX + name);
} else if (folder.getInt(NoteColumns.TYPE) == Notes.TYPE_SYSTEM) {
if (folder.getLong(NoteColumns.ID) == Notes.ID_ROOT_FOLDER)
setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_DEFAULT);
else if (folder.getLong(NoteColumns.ID) == Notes.ID_CALL_RECORD_FOLDER)
setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX
+ GTaskStringUtils.FOLDER_CALL_NOTE);
else
Log.e(TAG, "invalid system folder");
} else {
Log.e(TAG, "error type");
}
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
}
}
// 从任务列表的内容获取本地的 JSON 对象
public JSONObject getLocalJSONFromContent() {
try {
JSONObject js = new JSONObject();
JSONObject folder = new JSONObject();
String folderName = getName();
if (getName().startsWith(GTaskStringUtils.MIUI_FOLDER_PREFFIX))
folderName = folderName.substring(GTaskStringUtils.MIUI_FOLDER_PREFFIX.length(),
folderName.length());
folder.put(NoteColumns.SNIPPET, folderName);
if (folderName.equals(GTaskStringUtils.FOLDER_DEFAULT)
|| folderName.equals(GTaskStringUtils.FOLDER_CALL_NOTE))
folder.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
else
folder.put(NoteColumns.TYPE, Notes.TYPE_FOLDER);
js.put(GTaskStringUtils.META_HEAD_NOTE, folder);
return js;
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
return null;
}
}
// 获取同步操作的状态
public int getSyncAction(Cursor c) {
try {
if (c.getInt(SqlNote.LOCAL_MODIFIED_COLUMN) == 0) {
// 本地没有更新
if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) {
// 两边都没有更新
return SYNC_ACTION_NONE;
} else {
// 将远程更新应用到本地
return SYNC_ACTION_UPDATE_LOCAL;
}
} else {
// 验证 gtask 的 ID
if (!c.getString(SqlNote.GTASK_ID_COLUMN).equals(getGid())) {
Log.e(TAG, "gtask id doesn't match");
return SYNC_ACTION_ERROR;
}
if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) {
// 仅本地修改
return SYNC_ACTION_UPDATE_REMOTE;
} else {
// 对于文件夹冲突,仅应用本地修改
return SYNC_ACTION_UPDATE_REMOTE;
}
}
} catch (Exception e) {
Log.e(TAG, e.toString());
e.printStackTrace();
}
return SYNC_ACTION_ERROR;
}
// 获取任务列表中任务的数量
public int getChildTaskCount() {
return mChildren.size();
}
// 向任务列表中添加任务
public boolean addChildTask(Task task) {
boolean ret = false;
if (task!= null &&!mChildren.contains(task)) {
ret = mChildren.add(task);
if (ret) {
// 设置前一个兄弟任务和父任务
task.setPriorSibling(mChildren.isEmpty()? null : mChildren
.get(mChildren.size() - 1));
task.setParent(this);
}
}
return ret;
}
// 在指定索引处添加任务
public boolean addChildTask(Task task, int index) {
if (index < 0 || index > mChildren.size()) {
Log.e(TAG, "add child task: invalid index");
return false;
}
int pos = mChildren.indexOf(task);
if (task!= null && pos == -1) {
mChildren.add(index, task);
// 更新任务列表
Task preTask = null;
Task afterTask = null;
if (index!= 0)
preTask = mChildren.get(index - 1);
if (index!= mChildren.size() - 1)
afterTask = mChildren.get(index + 1);
task.setPriorSibling(preTask);
if (afterTask!= null)
afterTask.setPriorSibling(task);
}
return true;
}
// 从任务列表中移除任务
public boolean removeChildTask(Task task) {
boolean ret = false;
int index = mChildren.indexOf(task);
if (index!= -1) {
ret = mChildren.remove(task);
if (ret) {
// 重置前一个兄弟任务和父任务
task.setPriorSibling(null);
task.setParent(null);
// 更新任务列表
if (index!= mChildren.size()) {
mChildren.get(index).setPriorSibling(
index == 0? null : mChildren.get(index - 1));
}
}
}
return ret;
}
// 移动任务到指定索引位置
public boolean moveChildTask(Task task, int index) {
if (index < 0 || index >= mChildren.size()) {
Log.e(TAG, "move child task: invalid index");
return false;
}
int pos = mChildren.indexOf(task);
if (pos == -1) {
Log.e(TAG, "move child task: the task should in the list");
return false;
}
if (pos == index)
return true;
return (removeChildTask(task) && addChildTask(task, index));
}
// 根据全局唯一标识符查找任务
public Task findChildTaskByGid(String gid) {
for (int i = 0; i < mChildren.size(); i++) {
Task t = mChildren.get(i);
if (t.getGid().equals(gid)) {
return t;
}
}
return null;
}
// 获取任务在任务列表中的索引
public int getChildTaskIndex(Task task) {
return mChildren.indexOf(task);
}
// 根据索引获取任务
public Task getChildTaskByIndex(int index) {
if (index < 0 || index >= mChildren.size()) {
Log.e(TAG, "getTaskByIndex: invalid index");
return null;
}
return mChildren.get(index);
}
// 根据全局唯一标识符获取任务(可能是笔误,应为 getChildTaskByGid
public Task getChilTaskByGid(String gid) {
for (Task task : mChildren) {
if (task.getGid().equals(gid))
return task;
}
return null;
}
// 获取任务列表中的任务列表
public ArrayList<Task> getChildTaskList() {
return this.mChildren;
}
// 设置任务列表的索引
public void setIndex(int index) {
this.mIndex = index;
}
// 获取任务列表的索引
public int getIndex() {
return this.mIndex;
}
}

@ -0,0 +1,54 @@
/*
* 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.exception;
/**
* `ActionFailureException` `RuntimeException`
*
*/
public class ActionFailureException extends RuntimeException {
// 该字段是为了实现序列化和反序列化时保持版本一致性
private static final long serialVersionUID = 4425249765923293627L;
/**
* `RuntimeException`
*/
public ActionFailureException() {
super();
}
/**
* `RuntimeException`
*
* @param paramString
*/
public ActionFailureException(String paramString) {
super(paramString);
}
/**
* Throwable
* `RuntimeException`
*
* @param paramString
* @param paramThrowable
*/
public ActionFailureException(String paramString, Throwable paramThrowable) {
super(paramString, paramThrowable);
}
}

@ -0,0 +1,56 @@
/*
* 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.exception;
/**
* `NetworkFailureException` `Exception`
*
*
*/
public class NetworkFailureException extends Exception {
// 该字段用于保证序列化和反序列化时的版本兼容性。
private static final long serialVersionUID = 2107610287180234136L;
/**
* `Exception`
*
*/
public NetworkFailureException() {
super();
}
/**
* `Exception`
*
* @param paramString
*/
public NetworkFailureException(String paramString) {
super(paramString);
}
/**
* `Throwable`
* `Exception`
*
* @param paramString
* @param paramThrowable
*/
public NetworkFailureException(String paramString, Throwable paramThrowable) {
super(paramString, paramThrowable);
}
}

@ -0,0 +1,116 @@
// 该类 GTaskASyncTask 继承自 AsyncTask用于执行异步任务可能是在后台执行 GTask 的同步操作并显示通知
public class GTaskASyncTask extends AsyncTask<Void, String, Integer> {
// 同步通知的 ID
private static int GTASK_SYNC_NOTIFICATION_ID = 5234235;
// 定义一个接口,用于任务完成时的回调
public interface OnCompleteListener {
void onComplete();
}
// 上下文对象,用于获取系统服务等操作
private Context mContext;
// 通知管理器,用于显示通知
private NotificationManager mNotifiManager;
// GTask 管理器,可能用于执行实际的同步操作
private GTaskManager mTaskManager;
// 完成监听器,用于任务完成时的回调
private OnCompleteListener mOnCompleteListener;
// 构造函数,初始化成员变量
public GTaskASyncTask(Context context, OnCompleteListener listener) {
mContext = context;
mOnCompleteListener = listener;
mNotifiManager = (NotificationManager) mContext
.getSystemService(Context.NOTIFICATION_SERVICE);
mTaskManager = GTaskManager.getInstance();
}
// 取消同步操作,调用 GTaskManager 的取消同步方法
public void cancelSync() {
mTaskManager.cancelSync();
}
// 发布进度,调用父类的 publishProgress 方法
public void publishProgess(String message) {
publishProgress(new String[] {
message
});
}
// 显示通知
private void showNotification(int tickerId, String content) {
// 创建通知对象,设置图标、时间戳等
Notification notification = new Notification(R.drawable.notification, mContext
.getString(tickerId), System.currentTimeMillis());
notification.defaults = Notification.DEFAULT_LIGHTS;
notification.flags = Notification.FLAG_AUTO_CANCEL;
PendingIntent pendingIntent;
if (tickerId!= R.string.ticker_success) {
// 根据不同的 tickerId 设置不同的 PendingIntent
pendingIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext,
NotesPreferenceActivity.class), 0);
} else {
pendingIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext,
NotesListActivity.class), 0);
}
// 设置通知的详细信息
notification.setLatestEventInfo(mContext, mContext.getString(R.string.app_name), content,
pendingIntent);
mNotifiManager.notify(GTASK_SYNC_NOTIFICATION_ID, notification);
}
// 在后台执行的任务,发布登录进度并调用 GTaskManager 的同步方法
@Override
protected Integer doInBackground(Void... unused) {
publishProgess(mContext.getString(R.string.sync_progress_login, NotesPreferenceActivity
.getSyncAccountName(mContext)));
return mTaskManager.sync(mContext, this);
}
// 在进度更新时显示通知,并根据上下文发送广播
@Override
protected void onProgressUpdate(String... progress) {
showNotification(R.string.ticker_syncing, progress[0]);
if (mContext instanceof GTaskSyncService) {
((GTaskSyncService) mContext).sendBroadcast(progress[0]);
}
}
// 任务执行完成后的操作,根据结果显示不同的通知,并调用完成监听器
@Override
protected void onPostExecute(Integer result) {
if (result == GTaskManager.STATE_SUCCESS) {
showNotification(R.string.ticker_success, mContext.getString(
R.string.success_sync_account, mTaskManager.getSyncAccount()));
NotesPreferenceActivity.setLastSyncTime(mContext, System.currentTimeMillis());
} else if (result == GTaskManager.STATE_NETWORK_ERROR) {
showNotification(R.string.ticker_fail, mContext.getString(R.string.error_sync_network));
} else if (result == GTaskManager.STATE_INTERNAL_ERROR) {
showNotification(R.string.ticker_fail, mContext.getString(R.string.error_sync_internal));
} else if (result == GTaskManager.STATE_SYNC_CANCELLED) {
showNotification(R.string.ticker_cancel, mContext
.getString(R.string.error_sync_cancelled));
}
if (mOnCompleteListener!= null) {
new Thread(new Runnable() {
public void run() {
mOnCompleteListener.onComplete();
}
}).start();
}
}
}

@ -0,0 +1,753 @@
/*
* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.micode.notes.gtask.remote;
import android.accounts.Account;
import android.accounts.AccountManager;
import android.accounts.AccountManagerFuture;
import android.app.Activity;
import android.os.Bundle;
import android.text.TextUtils;
import android.util.Log;
import net.micode.notes.gtask.data.Node;
import net.micode.notes.gtask.data.Task;
import net.micode.notes.gtask.data.TaskList;
import net.micode.notes.gtask.exception.ActionFailureException;
import net.micode.notes.gtask.exception.NetworkFailureException;
import net.micode.notes.tool.GTaskStringUtils;
import net.micode.notes.ui.NotesPreferenceActivity;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.cookie.Cookie;
import org.apache.http.impl.client.BasicCookieStore;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import org.apache.http.params.HttpProtocolParams;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.LinkedList;
import java.util.List;
import java.util.zip.GZIPInputStream;
import java.util.zip.Inflater;
import java.util.zip.InflaterInputStream;
// GTaskClient 类,用于与 Google Tasks 服务进行交互
public class GTaskClient {
// 日志标签,使用类的简单名称,方便日志输出时识别
private static final String TAG = GTaskClient.class.getSimpleName();
// Google Tasks 的基础 URL
private static final String GTASK_URL = "https://mail.google.com/tasks/";
// 获取任务列表数据的 URL
private static final String GTASK_GET_URL = "https://mail.google.com/tasks/ig";
// 发送任务列表操作的 URL
private static final String GTASK_POST_URL = "https://mail.google.com/tasks/r/ig";
// 单例对象,确保只有一个 GTaskClient 实例
private static GTaskClient mInstance = null;
// HTTP 客户端,用于发送 HTTP 请求
private DefaultHttpClient mHttpClient;
// 存储获取数据的 URL
private String mGetUrl;
// 存储发送数据的 URL
private String mPostUrl;
// 客户端版本号
private long mClientVersion;
// 登录状态
private boolean mLoggedin;
// 上次登录的时间戳
private long mLastLoginTime;
// 操作的唯一标识符,每次操作递增
private int mActionId;
// 存储用户的 Google 账户信息
private Account mAccount;
// 存储更新操作的 JSON 数组
private JSONArray mUpdateArray;
// 构造函数,初始化成员变量
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 GTaskClient 的单例实例
public static synchronized GTaskClient getInstance() {
if (mInstance == null) {
mInstance = new GTaskClient();
}
return mInstance;
}
// 登录方法,用于登录 Google Tasks 服务
public boolean login(Activity activity) {
// 假设 cookie 在 5 分钟后过期,需要重新登录
final long interval = 1000 * 60 * 5;
if (mLastLoginTime + interval < System.currentTimeMillis()) {
mLoggedin = false;
}
// 账户切换后需要重新登录
if (mLoggedin &&!TextUtils.equals(getSyncAccount().name, NotesPreferenceActivity.getSyncAccountName(activity))) {
mLoggedin = false;
}
if (mLoggedin) {
Log.d(TAG, "already logged in");
return true;
}
mLastLoginTime = System.currentTimeMillis();
// 调用 loginGoogleAccount 方法获取认证令牌
String authToken = loginGoogleAccount(activity, false);
if (authToken == null) {
Log.e(TAG, "login google account failed");
return false;
}
// 如果账户不是以 gmail.com 或 googlemail.com 结尾,使用自定义域名登录
if (!(mAccount.name.toLowerCase().endsWith("gmail.com") || mAccount.name.toLowerCase().endsWith("googlemail.com"))) {
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";
if (tryToLoginGtask(activity, authToken)) {
mLoggedin = true;
}
}
// 尝试使用谷歌官方 URL 登录
if (!mLoggedin) {
mGetUrl = GTASK_GET_URL;
mPostUrl = GTASK_POST_URL;
if (!tryToLoginGtask(activity, authToken)) {
return false;
}
}
mLoggedin = true;
return true;
}
// 登录 Google 账户
private String loginGoogleAccount(Activity activity, boolean invalidateToken) {
String authToken;
// 获取账户管理器
AccountManager accountManager = AccountManager.get(activity);
// 获取所有 Google 账户
Account[] accounts = accountManager.getAccountsByType("com.google");
if (accounts.length == 0) {
Log.e(TAG, "there is no available google account");
return null;
}
// 获取同步账户的名称
String accountName = NotesPreferenceActivity.getSyncAccountName(activity);
Account account = null;
for (Account a : accounts) {
if (a.name.equals(accountName)) {
account = a;
break;
}
}
if (account!= null) {
mAccount = account;
} else {
Log.e(TAG, "unable to get an account with the same name in the settings");
return null;
}
// 获取账户的认证令牌
AccountManagerFuture<Bundle> accountManagerFuture = accountManager.getAuthToken(account, "goanna_mobile", null, activity, null, null);
try {
Bundle authTokenBundle = accountManagerFuture.getResult();
authToken = authTokenBundle.getString(AccountManager.KEY_AUTHTOKEN);
if (invalidateToken) {
// 使令牌失效并重新登录
accountManager.invalidateAuthToken("com.google", authToken);
loginGoogleAccount(activity, false);
}
} catch (Exception e) {
Log.e(TAG, "get auth token failed");
authToken = null;
}
return authToken;
}
// 尝试登录 GTask 服务
private boolean tryToLoginGtask(Activity activity, String authToken) {
if (!loginGtask(authToken)) {
// 令牌可能过期,重新获取令牌并再次尝试登录
authToken = loginGoogleAccount(activity, true);
if (authToken == null) {
Log.e(TAG, "login google account failed");
return false;
}
if (!loginGtask(authToken)) {
Log.e(TAG, "login gtask failed");
return false;
}
}
return true;
}
// 执行 GTask 服务的登录操作
private boolean loginGtask(String authToken) {
int timeoutConnection = 10000;
int timeoutSocket = 15000;
// 设置 HTTP 请求的参数,包括连接超时和套接字超时
HttpParams httpParameters = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection);
HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);
mHttpClient = new DefaultHttpClient(httpParameters);
BasicCookieStore localBasicCookieStore = new BasicCookieStore();
mHttpClient.setCookieStore(localBasicCookieStore);
HttpProtocolParams.setUseExpectContinue(mHttpClient.getParams(), false);
// 执行登录请求
try {
String loginUrl = mGetUrl + "?auth=" + authToken;
HttpGet httpGet = new HttpGet(loginUrl);
HttpResponse response = null;
response = mHttpClient.execute(httpGet);
// 检查是否获得认证 cookie
List<Cookie> 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");
}
// 获取响应内容并解析客户端版本号
String resString = getResponseContent(response.getEntity());
String jsBegin = "_setup(";
String jsEnd = ")}</script>";
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) {
Log.e(TAG, "httpget gtask_url failed");
return false;
}
return true;
}
// 获取下一个操作的唯一标识符
private int getActionId() {
return mActionId++;
}
// 创建 HTTP POST 请求
private HttpPost createHttpPost() {
HttpPost httpPost = new HttpPost(mPostUrl);
// 设置请求头,指定内容类型和其他属性
httpPost.setHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");
httpPost.setHeader("AT", "1");
return httpPost;
}
// 获取 HTTP 响应的内容
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();
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);
}
try {
InputStreamReader isr = new InputStreamReader(input);
BufferedReader br = new BufferedReader(isr);
StringBuilder sb = new StringBuilder();
// 逐行读取响应内容
while (true) {
String buff = br.readLine();
if (buff == null) {
return sb.toString();
}
sb = sb.append(buff);
}
} finally {
input.close();
}
}
// 发送 POST 请求
private JSONObject postRequest(JSONObject js) throws NetworkFailureException {
if (!mLoggedin) {
Log.e(TAG, "please login first");
throw new ActionFailureException("not logged in");
}
HttpPost httpPost = createHttpPost();
try {
LinkedList<BasicNameValuePair> list = new LinkedList<BasicNameValuePair>();
list.add(new BasicNameValuePair("r", js.toString()));
// 创建 URL 编码的表单实体
UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list, "UTF-8");
httpPost.setEntity(entity);
// 执行 POST 请求
HttpResponse response = mHttpClient.execute(httpPost);
String jsString = getResponseContent(response.getEntity());
return new JSONObject(jsString);
} catch (ClientProtocolException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new NetworkFailureException("postRequest failed");
} catch (IOException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new NetworkFailureException("postRequest failed");
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("unable to convert response content to jsonobject");
} catch (Exception e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("error occurs when posting request");
}
}
// 创建任务
public void createTask(Task task) throws NetworkFailureException {
commitUpdate();
try {
JSONObject jsPost = new JSONObject();
JSONArray actionList = new JSONArray();
// 将任务的创建操作添加到动作列表中
actionList.put(task.getCreateAction(getActionId()));
jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList);
// 包含客户端版本号
jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion);
// 发送请求并处理响应
JSONObject jsResponse = postRequest(jsPost);
JSONObject jsResult = (JSONObject) jsResponse.getJSONArray(GTaskStringUtils.GTASK_JSON_RESULTS).get(0);
task.setGid(jsResult.getString(GTaskStringUtils.GTASK_JSON_NEW_ID));
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("create task: handing jsonobject failed");
}
}
// 创建任务列表
public void createTaskList(TaskList tasklist) throws NetworkFailureException {
commitUpdate();
try {
JSONObject jsPost = new JSONObject();
JSONArray actionList = new JSONArray();
// 将任务列表的创建操作添加到动作列表中
actionList.put(tasklist.getCreateAction(getActionId()));
jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList);
// 包含客户端版本号
jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion);
// 发送请求并处理响应
JSONObject jsResponse = postRequest(jsPost);
JSONObject jsResult = (JSONObject) jsResponse.getJSONArray(GTaskStringUtils.GTASK_JSON_RESULTS).get(0);
tasklist.setGid(jsResult.getString(GTaskStringUtils.GTASK_JSON_NEW_ID));
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("create tasklist: handing jsonobject failed");
}
}
// 提交更新操作
public void commitUpdate() throws NetworkFailureException {
if (mUpdateArray!= null) {
try {
JSONObject jsPost = new JSONObject();
// 将更新操作列表添加到请求中
jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, mUpdateArray);
// 包含客户端版本号
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("commit update: handing jsonobject failed");
}
}
}
// 添加节点更新操作
public void addUpdateNode(Node node) throws NetworkFailureException {
if (node!= null) {
// 为了避免过多更新操作,最多存储 10 个更新项
if (mUpdateArray!= null && mUpdateArray.length() > 10) {
commitUpdate();
}
if (mUpdateArray == null)
mUpdateArray = new JSONArray();
mUpdateArray.put(node.getUpdateAction(getActionId()));
}
}
// 移动任务
public void moveTask(Task task, TaskList preParent, TaskList curParent) throws NetworkFailureException {
commitUpdate();
try {
JSONObject jsPost = new JSONObject();
JSONArray actionList = new JSONArray();
JSONObject action = new JSONObject();
// 配置移动任务的操作信息
action.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, GTaskStringUtils.GTASK_JSON_ACTION_TYPE_MOVE);
action.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, getActionId());
action.put(GTaskStringUtils.GTASK_JSON_ID, task.getGid());
if (preParent == curParent && task.getPriorSibling()!= null) {
// 仅在任务列表内移动且不是第一个任务时添加前置兄弟任务的信息
action.put(GTaskStringUtils.GTASK_JSON_PRIOR_SIBLING_ID, task.getPriorSibling());
}
action.put(GTaskStringUtils.GTASK_JSON_SOURCE_LIST, preParent.getGid());
action.put(GTaskStringUtils.GTASK_JSON_DEST_PARENT, curParent.getGid());
if (preParent!= curParent) {
// 仅在任务列表间移动时添加目标列表信息
action.put(GTaskStringUtils.GTASK_JSON_DEST_LIST, curParent.getGid());
}
actionList.put(action);
jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList);
// 包含客户端版本号
jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion);
postRequest(jsPost);
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("move task: handing jsonobject failed");
}
}
// 该部分代码是 GTaskClient 类的部分方法,主要涉及节点删除、任务列表获取以及一些相关操作
// 删除节点的方法
public void deleteNode(Node node) throws NetworkFailureException {
// 首先调用 commitUpdate 方法,可能是为了提交之前的更新操作
commitUpdate();
try {
// 创建一个新的 JSON 对象用于存储要发送给服务器的请求信息
JSONObject jsPost = new JSONObject();
// 创建一个 JSON 数组,用于存储操作列表
JSONArray actionList = new JSONArray();
// action_list
// 将节点标记为已删除
node.setDeleted(true);
// 将节点的更新操作添加到操作列表中getActionId() 可能是获取一个唯一的操作 ID
actionList.put(node.getUpdateAction(getActionId()));
// 将操作列表添加到 JSON 对象中,使用了一个常量作为键,可能是约定的键名
jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList);
// client_version
// 将客户端版本添加到 JSON 对象中,可能是为了服务器端进行兼容性检查等操作
jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion);
// 调用 postRequest 方法发送请求,将创建的 JSON 对象作为请求参数
postRequest(jsPost);
// 将更新数组置为 null可能是清空之前的更新操作
mUpdateArray = null;
} catch (JSONException e) {
// 发生 JSON 异常时的处理,输出错误日志并抛出自定义异常
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("delete node: handing jsonobject failed");
}
}
// 获取任务列表的方法
public JSONArray getTaskLists() throws NetworkFailureException {
// 如果未登录,则输出错误日志并抛出异常
if (!mLoggedin) {
Log.e(TAG, "please login first");
throw new ActionFailureException("not logged in");
}
try {
// 创建一个 HTTP GET 请求
HttpGet httpGet = new HttpGet(mGetUrl);
HttpResponse response = null;
// 执行请求并获取响应
response = mHttpClient.execute(httpGet);
// get the task list
// 获取响应内容
String resString = getResponseContent(response.getEntity());
// 定义 JSON 数据的起始和结束标记,可能是为了提取有效 JSON 数据
String jsBegin = "_setup(";
String jsEnd = ")}</script>";
int begin = resString.indexOf(jsBegin);
int end = resString.lastIndexOf(jsEnd);
String jsString = null;
// 提取有效的 JSON 字符串
if (begin!= -1 && end!= -1 && begin < end) {
jsString = resString.substring(begin + jsBegin.length(), end);
}
// 将 JSON 字符串解析为 JSON 对象
JSONObject js = new JSONObject(jsString);
// 从 JSON 对象中获取任务列表数据,使用了一个常量作为键,可能是约定的键名
return js.getJSONObject("t").getJSONArray(GTaskStringUtils.GTASK_JSON_LISTS);
} catch (ClientProtocolException e) {
// 客户端协议异常处理,输出错误日志并抛出网络异常
Log.e(TAG, e.toString());
e.printStackTrace();
throw new NetworkFailureException("gettasklists: httpget failed");
} catch (IOException e) {
// IO 异常处理,输出错误日志并抛出网络异常
Log.e(TAG, e.toString());
e.printStackTrace();
throw new NetworkFailureException("gettasklists: httpget failed");
} catch (JSONException e) {
// JSON 异常处理,输出错误日志并抛出自定义异常
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("get task lists: handing jasonobject failed");
}
}
// 根据列表 GID 获取任务列表的方法
public JSONArray getTaskList(String listGid) throws NetworkFailureException {
// 调用 commitUpdate 方法,可能是为了提交之前的更新操作
commitUpdate();
try {
// 创建一个新的 JSON 对象用于存储请求信息
JSONObject jsPost = new JSONObject();
// 创建一个操作列表的 JSON 数组
JSONArray actionList = new JSONArray();
// 创建一个操作的 JSON 对象
JSONObject action = new JSONObject();
// action_list
// 设置操作类型,使用了一个常量作为操作类型,可能是约定的操作类型
action.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
GTaskStringUtils.GTASK_JSON_ACTION_TYPE_GETALL);
// 设置操作的 ID使用 getActionId() 获取唯一操作 ID
action.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, getActionId());
// 设置列表的 GID
action.put(GTaskStringUtils.GTASK_JSON_LIST_ID, listGid);
// 设置是否获取已删除的任务,这里设置为 false
action.put(GTaskStringUtils.GTASK_JSON_GET_DELET OF_NODE);
Log.e(TAG, "delete node: handing jsonobject failed");
}
}
// 获取任务列表
public JSONArray getTaskLists() throws NetworkFailureException {
if (!mLoggedin) {
Log.e(TAG, "please login first");
throw new ActionFailureException("not logged in");
}
try {
HttpGet httpGet = new HttpGet(mGetUrl);
HttpResponse response = null;
response = mHttpClient.execute(httpGet);
// 获取任务列表
String resString = getResponseContent(response.getEntity());
String jsBegin = "_setup(";
String jsEnd = ")}</script>";
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);
return js.getJSONObject("t").getJSONArray(GTaskStringUtils.GTASK_JSON_LISTS);
} catch (ClientProtocolException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new NetworkFailureException("gettasklists: httpget failed");
} catch (IOException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new NetworkFailureException("gettasklists: httpget failed");
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("get task lists: handing jasonobject failed");
}
}
// 根据列表 GID 获取任务列表
public JSONArray getTaskList(String listGid) throws NetworkFailureException {
commitUpdate();
try {
JSONObject jsPost = new JSONObject();
JSONArray actionList = new JSONArray();
JSONObject action = new JSONObject();
// 配置操作列表
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);
jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList);
// 包含客户端版本号
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");
}
}
// 获取同步账户
public Account getSyncAccount() {
return mAccount;
}
// 重置更新数组
public void resetUpdateArray() {
mUpdateArray = null;
}
}

@ -0,0 +1,918 @@
/*
* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.micode.notes.gtask.remote;
import android.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 GTask 的同步操作
public class GTaskManager {
// 日志标签,使用类的简单名称
private static final String TAG = GTaskManager.class.getSimpleName();
// 同步成功的状态码
public static final int STATE_SUCCESS = 0;
// 网络错误的状态码
public static final int STATE_NETWORK_ERROR = 1;
// 内部错误的状态码
public static final int STATE_INTERNAL_ERROR = 2;
// 同步正在进行的状态码
public static final int STATE_SYNC_IN_PROGRESS = 3;
// 同步已取消的状态码
public static final int STATE_SYNC_CANCELLED = 4;
// 单例实例
private static GTaskManager mInstance = null;
// 关联的 Activity可能用于执行一些与 UI 或账户认证相关的操作
private Activity mActivity;
// 上下文对象,用于访问系统资源
private Context mContext;
// 内容解析器,用于操作内容提供器的数据
private ContentResolver mContentResolver;
// 标记是否正在同步
private boolean mSyncing;
// 标记是否已取消同步
private boolean mCancelled;
// 存储任务列表的映射,键为字符串,值为 TaskList 对象
private HashMap<String, TaskList> mGTaskListHashMap;
// 存储节点的映射,键为字符串,值为 Node 对象
private HashMap<String, Node> mGTaskHashMap;
// 存储元数据的映射,键为字符串,值为 MetaData 对象
private HashMap<String, MetaData> mMetaHashMap;
// 元数据列表
private TaskList mMetaList;
// 存储本地删除的 ID 集合
private HashSet<Long> mLocalDeleteIdMap;
// 存储 GID 到 NID 的映射键为字符串GID值为 LongNID
private HashMap<String, Long> mGidToNid;
// 存储 NID 到 GID 的映射,键为 LongNID值为字符串GID
private HashMap<Long, String> mNidToGid;
// 私有构造函数,用于初始化成员变量
private GTaskManager() {
mSyncing = false;
mCancelled = false;
mGTaskListHashMap = new HashMap<String, TaskList>();
mGTaskHashMap = new HashMap<String, Node>();
mMetaHashMap = new HashMap<String, MetaData>();
mMetaList = null;
mLocalDeleteIdMap = new HashSet<Long>();
mGidToNid = new HashMap<String, Long>();
mNidToGid = new HashMap<Long, String>();
}
// 获取 GTaskManager 的单例实例
public static synchronized GTaskManager getInstance() {
if (mInstance == null) {
mInstance = new GTaskManager();
}
return mInstance;
}
// 设置活动上下文,可能用于获取认证令牌等操作
public synchronized void setActivityContext(Activity activity) {
// used for getting authtoken
mActivity = activity;
}
// 执行同步操作的方法
public int sync(Context context, GTaskASyncTask asyncTask) {
// 如果正在同步,输出日志信息并返回正在同步的状态码
if (mSyncing) {
Log.d(TAG, "Sync is in progress");
return STATE_SYNC_IN_PROGRESS;
}
mContext = context;
mContentResolver = mContext.getContentResolver();
mSyncing = true;
mCancelled = false;
// 清空各种映射和集合,为同步操作做准备
mGTaskListHashMap.clear();
mGTaskHashMap.clear();
mMetaHashMap.clear();
mLocalDeleteIdMap.clear();
mGidToNid.clear();
mNidToGid.clear();
try {
GTaskClient client = GTaskClient.getInstance();
// 重置 GTaskClient 的更新数组
client.resetUpdateArray();
// 登录 Google 任务,如果未取消且登录失败则抛出异常
if (!mCancelled) {
if (!client.login(mActivity)) {
throw new NetworkFailureException("login google task failed");
}
}
// 通知异步任务同步进度,开始初始化任务列表
asyncTask.publishProgess(mContext.getString(R.string.sync_progress_init_list));
initGTaskList();
// 通知异步任务同步进度,开始进行内容同步操作
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 {
// 无论是否发生异常,最终都清空各种映射和集合,并标记同步结束
mGTaskListHashMap.clear();
mGTaskHashMap.clear();
mMetaHashMap.clear();
mLocalDeleteIdMap.clear();
mGidToNid.clear();
mNidToGid.clear();
mSyncing = false;
}
// 根据是否取消返回相应的状态码
return mCancelled? STATE_SYNC_CANCELLED : STATE_SUCCESS;
}
}
// 该方法用于初始化 GTask 列表
private void initGTaskList() throws NetworkFailureException {
// 如果同步操作已被取消,则直接返回
if (mCancelled)
return;
// 获取 GTaskClient 的实例
GTaskClient client = GTaskClient.getInstance();
try {
// 从 GTaskClient 获取任务列表的 JSON 数组
JSONArray jsTaskLists = client.getTaskLists();
// 首先将元数据列表初始化为 null
mMetaList = null;
// 遍历任务列表的 JSON 数组
for (int i = 0; i < jsTaskLists.length(); i++) {
// 从 JSON 数组中获取每个任务列表的 JSONObject 表示
JSONObject object = jsTaskLists.getJSONObject(i);
// 获取任务列表的 GID 和名称
String gid = object.getString(GTaskStringUtils.GTASK_JSON_ID);
String name = object.getString(GTaskStringUtils.GTASK_JSON_NAME);
// 检查任务列表的名称是否是元数据文件夹
if (name.equals(GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_META)) {
// 创建一个新的任务列表对象,并根据远程 JSON 内容设置其内容
mMetaList = new TaskList();
mMetaList.setContentByRemoteJSON(object);
// 加载元数据
JSONArray jsMetas = client.getTaskList(gid);
for (int j = 0; j < jsMetas.length(); j++) {
// 获取元数据的 JSONObject 表示
object = (JSONObject) jsMetas.getJSONObject(j);
// 创建元数据对象并根据远程 JSON 内容设置其内容
MetaData metaData = new MetaData();
metaData.setContentByRemoteJSON(object);
// 如果元数据值得保存
if (metaData.isWorthSaving()) {
// 将元数据添加为元数据列表的子任务
mMetaList.addChildTask(metaData);
if (metaData.getGid()!= null) {
// 将元数据添加到元数据映射中
mMetaHashMap.put(metaData.getRelatedGid(), metaData);
}
}
}
}
}
// 如果元数据列表不存在,则创建一个新的元数据列表
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++) {
// 获取任务列表的 JSONObject 表示
JSONObject object = jsTaskLists.getJSONObject(i);
// 获取任务列表的 GID 和名称
String gid = object.getString(GTaskStringUtils.GTASK_JSON_ID);
String name = object.getString(GTaskStringUtils.GTASK_JSON_NAME);
// 检查任务列表名称是否以特定前缀开头且不是元数据文件夹
if (name.startsWith(GTaskStringUtils.MIUI_FOLDER_PREFFIX) &&
!name.equals(GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_META)) {
// 创建新的任务列表对象并根据远程 JSON 内容设置其内容
TaskList tasklist = new TaskList();
tasklist.setContentByRemoteJSON(object);
// 将任务列表添加到任务列表映射中
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++) {
// 获取任务的 JSONObject 表示
object = (JSONObject) jsTasks.getJSONObject(j);
gid = object.getString(GTaskStringUtils.GTASK_JSON_ID);
// 创建新的任务对象并根据远程 JSON 内容设置其内容
Task task = new Task();
task.setContentByRemoteJSON(object);
// 如果任务值得保存
if (task.isWorthSaving()) {
// 设置任务的元信息
task.setMetaInfo(mMetaHashMap.get(gid));
// 将任务添加为任务列表的子任务
tasklist.addChildTask(task);
// 将任务添加到任务映射中
mGTaskHashMap.put(gid, task);
}
}
}
}
} catch (JSONException e) {
// 打印日志并抛出操作失败异常
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("initGTaskList: handing JSONObject failed");
}
}
// 该方法用于同步内容
private void syncContent() throws NetworkFailureException {
int syncType;
Cursor c = null;
String gid;
Node node;
// 清空本地删除 ID 映射
mLocalDeleteIdMap.clear();
// 如果同步操作已取消,直接返回
if (mCancelled) {
return;
}
// 处理本地删除的笔记
try {
// 查询垃圾桶文件夹中的笔记
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()) {
// 获取笔记的 GID
gid = c.getString(SqlNote.GTASK_ID_COLUMN);
// 根据 GID 获取节点
node = mGTaskHashMap.get(gid);
if (node!= null) {
// 从任务映射中移除该节点
mGTaskHashMap.remove(gid);
// 执行远程删除操作
doContentSync(Node.SYNC_ACTION_DEL_REMOTE, node, c);
}
// 将笔记的本地 ID 添加到本地删除 ID 集合中
mLocalDeleteIdMap.add(c.getLong(SqlNote.ID_COLUMN));
}
} else {
Log.w(TAG, "failed to query trash folder");
}
} finally {
// 关闭游标
if (c!= null) {
c.close();
c = null;
}
}
// 先同步文件夹
syncFolder();
// 处理数据库中存在的笔记
try {
// 查询数据库中的笔记
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()) {
// 获取笔记的 GID
gid = c.getString(SqlNote.GTASK_ID_COLUMN);
// 根据 GID 获取节点
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);
// 获取同步类型
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;
}
}
// 执行内容同步操作
doContentSync(syncType, node, c);
}
} else {
Log.w(TAG, "failed to query existing note in database");
}
} finally {
// 关闭游标
if (c!= null) {
c.close();
c = null;
}
}
// 该部分代码是 GTaskManager 类的一部分,涉及同步操作的进一步处理,包括处理剩余项、同步文件夹等操作
// 遍历 mGTaskHashMap 中剩余的项
// go through remaining items
Iterator<Map.Entry<String, Node>> iter = mGTaskHashMap.entrySet().iterator();
while (iter.hasNext()) {
// 获取下一个映射项
Map.Entry<String, Node> entry = iter.next();
// 获取节点
node = entry.getValue();
// 调用 doContentSync 方法进行本地添加操作,传入的参数为 Node.SYNC_ACTION_ADD_LOCAL表示本地添加操作节点和空的 Cursor可能表示不需要数据库信息
doContentSync(Node.SYNC_ACTION_ADD_LOCAL, node, null);
}
// mCancelled 可以被另一个线程设置,所以需要逐个检查
// clear local delete table
// 如果同步未被取消
if (!mCancelled) {
// 尝试批量删除本地已删除的笔记,如果失败则抛出 ActionFailureException
if (!DataUtils.batchDeleteNotes(mContentResolver, mLocalDeleteIdMap)) {
throw new ActionFailureException("failed to batch-delete local deleted notes");
}
}
// refresh local sync id
// 如果同步未被取消
if (!mCancelled) {
// 调用 GTaskClient 的 commitUpdate 方法提交更新
GTaskClient.getInstance().commitUpdate();
// 调用 refreshLocalSyncId 方法刷新本地同步 ID
refreshLocalSyncId();
}
// 同步文件夹的方法,可能会抛出 NetworkFailureException 异常
private void syncFolder() throws NetworkFailureException {
// 定义游标、GID、节点和同步类型变量
Cursor c = null;
String gid;
Node node;
int syncType;
// 如果同步操作已取消,直接返回
if (mCancelled) {
return;
}
// for root folder
try {
// 查询根文件夹的信息
c = mContentResolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI,
Notes.ID_ROOT_FOLDER), SqlNote.PROJECTION_NOTE, null, null, null);
if (c!= null) {
// 将游标移动到下一个位置
c.moveToNext();
// 获取 GID
gid = c.getString(SqlNote.GTASK_ID_COLUMN);
// 从 mGTaskHashMap 中获取节点
node = mGTaskHashMap.get(gid);
if (node!= null) {
// 从映射中移除该节点
mGTaskHashMap.remove(gid);
// 将 GID 和根文件夹的 ID 映射存储到 mGidToNid 和 mNidToGid 中
mGidToNid.put(gid, (long) Notes.ID_ROOT_FOLDER);
mNidToGid.put((long) Notes.ID_ROOT_FOLDER, gid);
// 对于系统文件夹,如果节点的名称不等于特定的系统文件夹名称,调用 doContentSync 进行远程更新操作
if (!node.getName().equals(
GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_DEFAULT))
doContentSync(Node.SYNC_ACTION_UPDATE_REMOTE, node, c);
} else {
// 如果节点不存在,调用 doContentSync 进行远程添加操作
doContentSync(Node.SYNC_ACTION_ADD_REMOTE, node, c);
}
} else {
Log.w(TAG, "failed to query root folder");
}
} finally {
// 确保游标被关闭
if (c!= null) {
c.close();
c = null;
}
}
// for call-note folder
try {
// 查询通话记录文件夹的信息
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()) {
// 获取 GID
gid = c.getString(SqlNote.GTASK_ID_COLUMN);
// 从 mGTaskHashMap 中获取节点
node = mGTaskHashMap.get(gid);
if (node!= null) {
// 从映射中移除该节点
mGTaskHashMap.remove(gid);
// 将 GID 和通话记录文件夹的 ID 映射存储到 mGidToNid 和 mNidToGid 中
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,如果节点的名称不等于特定的通话记录文件夹名称,调用 doContentSync 进行远程更新操作
if (!node.getName().equals(
GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_CALL_NOTE))
doContentSync(Node.SYNC_ACTION_UPDATE_REMOTE, node, c);
} else {
// 如果节点不存在,调用 doContentSync 进行远程添加操作
doContentSync(Node.SYNC_ACTION_ADD_REMOTE, node, c);
}
}
} else {
Log.w(TAG, "failed to query call note folder");
}
} finally {
// 确保游标被关闭
if (c!= null) {
c.close();
c = null;
}
}
// for local existing folders
try {
// 查询本地存在的文件夹信息
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()) {
// 获取 GID
gid = c.getString(SqlNote.GTASK_ID_COLUMN);
// 从 mGTaskHashMap 中获取节点
node = mGTaskHashMap.get(gid);
if (node!= null) {
// 从映射中移除该节点
mGTaskHashMap.remove(gid);
// 将 GID 和当前文件夹的 ID 映射存储到 mGidToNid 和 mNidToGid 中
mGidToNid.put(gid, c.getLong(SqlNote.ID_COLUMN));
mNidToGid.put(c.getLong(SqlNote.ID_COLUMN), gid);
// 获取同步类型
syncType = node.getSyncAction(c);
} else {
// 如果 GID 长度为 0说明是本地添加操作
if (c.getString(SqlNote.GTASK_ID_COLUMN).trim().length() == 0) {
syncType = Node.SYNC_ACTION_ADD_REMOTE;
} else {
// 否则是远程删除操作
syncType = Node.SYNC_ACTION_DEL_LOCAL;
}
}
// 调用 doContentSync 进行相应的同步操作
doContentSync(syncType, node, c);
}
} else {
Log.w(TAG, "failed to query existing folder");
}
} finally {
// 确保游标被关闭
if (c!= null) {
c.close();
c = null;
}
}
// for remote add folders
// 遍历任务列表的 HashMap 的迭代器
Iterator<Map.Entry<String, TaskList>> iter = mGTaskListHashMap.entrySet().iterator();
while (iter.hasNext()) {
// 获取迭代器的下一个元素
Map.Entry<String, TaskList> entry = iter.next();
// 获取任务列表的 GID
gid = entry.getKey();
// 获取任务列表的节点
node = entry.getValue();
// 检查 GTaskHashMap 是否包含该 GID
if (mGTaskHashMap.containsKey(gid)) {
// 从 GTaskHashMap 中移除该 GID
mGTaskHashMap.remove(gid);
// 执行内容同步操作,同步类型为本地添加
doContentSync(Node.SYNC_ACTION_ADD_LOCAL, node, null);
}
}
// 如果同步操作未取消
if (!mCancelled)
// 调用 GTaskClient 的 commitUpdate 方法
GTaskClient.getInstance().commitUpdate();
// 执行内容同步操作的方法,根据不同的同步类型进行不同的操作
private void doContentSync(int syncType, Node node, Cursor c) throws NetworkFailureException {
if (mCancelled) {
return;
}
MetaData meta;
switch (syncType) {
// 本地添加节点
case Node.SYNC_ACTION_ADD_LOCAL:
addLocalNode(node);
break;
// 远程添加节点
case Node.SYNC_ACTION_ADD_REMOTE:
addRemoteNode(node, c);
break;
// 本地删除节点
case Node.SYNC_ACTION_DEL_LOCAL:
// 从元数据映射中获取元数据
meta = mMetaHashMap.get(c.getString(SqlNote.GTASK_ID_COLUMN));
if (meta!= null) {
// 调用 GTaskClient 的 deleteNode 方法删除元数据
GTaskClient.getInstance().deleteNode(meta);
}
// 将本地删除的节点 ID 添加到本地删除集合中
mLocalDeleteIdMap.add(c.getLong(SqlNote.ID_COLUMN));
break;
// 远程删除节点
case Node.SYNC_ACTION_DEL_REMOTE:
// 从元数据映射中获取元数据
meta = mMetaHashMap.get(node.getGid());
if (meta!= null) {
// 调用 GTaskClient 的 deleteNode 方法删除元数据
GTaskClient.getInstance().deleteNode(meta);
}
// 调用 GTaskClient 的 deleteNode 方法删除节点
GTaskClient.getInstance().deleteNode(node);
break;
// 本地更新节点
case Node.SYNC_ACTION_UPDATE_LOCAL:
updateLocalNode(node, c);
break;
// 远程更新节点
case Node.SYNC_ACTION_UPDATE_REMOTE:
updateRemoteNode(node, c);
break;
// 同步冲突
case Node.SYNC_ACTION_UPDATE_CONFLICT:
// 合并修改,目前只是简单地使用远程更新
updateRemoteNode(node, c);
break;
// 无同步操作
case Node.SYNC_ACTION_NONE:
break;
// 同步操作错误
case Node.SYNC_ACTION_ERROR:
default:
// 抛出异常,因为同步操作类型未知
throw new ActionFailureException("unkown sync action type");
}
}
// 本地添加节点的方法
private void addLocalNode(Node node) throws NetworkFailureException {
if (mCancelled) {
return;
}
SqlNote sqlNote;
if (node instanceof TaskList) {
// 根据节点名称创建不同的 SqlNote 对象
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);
// 设置 SqlNote 的内容
sqlNote.setContent(node.getLocalJSONFromContent());
// 设置父节点 ID
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)) {
// 如果 ID 已存在,移除 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)) {
// 如果数据 ID 已存在,移除数据 ID
data.remove(DataColumns.ID);
}
}
}
}
} catch (JSONException e) {
Log.w(TAG, e.toString());
e.printStackTrace();
}
// 设置 SqlNote 的内容
sqlNote.setContent(js);
// 获取父节点的 GID 对应的本地 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");
}
// 设置父节点 ID
sqlNote.setParentId(parentId.longValue());
}
// 创建本地节点
sqlNote.setGtaskId(node.getGid());
sqlNote.commit(false);
// 更新 GID 到 NID 的映射和 NID 到 GID 的映射
mGidToNid.put(node.getGid(), sqlNote.getId());
mNidToGid.put(sqlNote.getId(), node.getGid());
// 更新远程元数据
updateRemoteMeta(node.getGid(), sqlNote);
}
// 本地更新节点的方法
private void updateLocalNode(Node node, Cursor c) throws NetworkFailureException {
if (mCancelled) {
return;
}
SqlNote sqlNote;
// 本地更新笔记
sqlNote = new SqlNote(mContext, c);
sqlNote.setContent(node.getLocalJSONFromContent());
// 获取父节点的 GID 对应的本地 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");
}
// 设置父节点 ID
sqlNote.setParentId(parentId.longValue());
sqlNote.commit(true);
// 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 {
if (mCancelled) {
return;
}
SqlNote sqlNote = new SqlNote(mContext, c);
Node n;
// 远程更新
if (sqlNote.isNoteType()) {
Task task = new Task();
// 设置任务的内容
task.setContentByLocalJSON(sqlNote.getContent());
// 获取父任务列表的 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");
}
// 将任务添加到父任务列表中
mGTaskListHashMap.get(parentGid).addChildTask(task);
// 调用 GTaskClient 的 createTask 方法创建任务
GTaskClient.getInstance().createTask(task);
n = (Node) task;
// 添加元数据
updateRemoteMeta(task.getGid(), sqlNote);
} else {
TaskList tasklist = null;
// 构建文件夹名称
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();
// 遍历任务列表的 HashMap查找是否已存在该文件夹
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;
}
}
// 如果不存在,创建新的任务列表
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
sqlNote.setGtaskId(n.getGid());
sqlNote.commit(false);
sqlNote.resetLocalModified();
sqlNote.commit(true);
// 更新 GID 到 NID 的映射和 NID 到 GID 的映射
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 {
if (mCancelled) {
return;
}
SqlNote sqlNote = new SqlNote(mContext, c);
// 远程更新
node.setContentByLocalJSON(sqlNote.getContent());
GTaskClient.getInstance().addUpdateNode(node);
// 更新元数据
updateRemoteMeta(node.getGid(), sqlNote);
// 如果是任务,可能需要移动任务
if (sqlNote.isNoteType()) {
Task task = (Task) node;
TaskList preParentList = task.getParent();
// 获取当前父任务列表的 GID
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) {
// 移除任务从原父任务列表,并添加到新父任务列表
preParentList.removeChildTask(task);
curParentList.addChildTask(task);
// 调用 GTaskClient 的 moveTask 方法移动任务
GTaskClient.getInstance().moveTask(task, preParentList, curParentList);
}
}
// 清除本地修改标志
sqlNote.resetLocalModified();
sqlNote.commit(true);
}
// 更新远程元数据的方法
private void updateRemoteMeta(String gid, SqlNote sqlNote) throws NetworkFailureException {
if (sqlNote!= null && sqlNote.isNoteType()) {
MetaData metaData = mMetaHashMap.get(gid);
if (metaData!= null) {
// 更新元数据
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 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 {
// 查询本地笔记
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();
// 更新同步 ID
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;
}

@ -0,0 +1,155 @@
/*
*
* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
* Apache License, Version 2.0
* http://www.apache.org/licenses/LICENSE-2.0
*/
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;
// GTaskSyncService 类,用于实现 GTask 的同步服务
public class GTaskSyncService extends Service {
// 定义同步操作类型的字符串名称
public final static String ACTION_STRING_NAME = "sync_action_type";
// 开始同步操作的常量
public final static int ACTION_START_SYNC = 0;
// 取消同步操作的常量
public final static int ACTION_CANCEL_SYNC = 1;
// 无效操作的常量
public final static int ACTION_INVALID = 2;
// 服务广播的名称
public final static String GTASK_SERVICE_BROADCAST_NAME = "net.micode.notes.gtask.remote.gtask_sync_service";
// 广播中表示是否正在同步的键
public final static String GTASK_SERVICE_BROADCAST_IS_SYNCING = "isSyncing";
// 广播中表示同步进度消息的键
public final static String GTASK_SERVICE_BROADCAST_PROGRESS_MSG = "progressMsg";
// 存储同步任务的静态变量
private static GTaskASyncTask mSyncTask = null;
// 存储同步进度消息的静态变量
private static String mSyncProgress = "";
// 开始同步的方法
private void startSync() {
// 如果同步任务为空,则创建一个新的同步任务
if (mSyncTask == null) {
mSyncTask = new GTaskASyncTask(this, new GTaskASyncTask.OnCompleteListener() {
// 同步任务完成后的回调方法
public void onComplete() {
mSyncTask = null;
sendBroadcast("");
stopSelf();
}
});
sendBroadcast("");
// 执行同步任务
mSyncTask.execute();
}
}
// 取消同步的方法
private void cancelSync() {
// 如果同步任务不为空,则取消同步任务
if (mSyncTask!= null) {
mSyncTask.cancelSync();
}
}
// 服务创建时调用的方法
@Override
public void onCreate() {
mSyncTask = null;
}
// 服务启动时调用的方法,根据传入的意图执行不同的操作
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Bundle bundle = intent.getExtras();
if (bundle!= null && bundle.containsKey(ACTION_STRING_NAME)) {
switch (bundle.getInt(ACTION_STRING_NAME, ACTION_INVALID)) {
// 开始同步操作
case ACTION_START_SYNC:
startSync();
break;
// 取消同步操作
case ACTION_CANCEL_SYNC:
cancelSync();
break;
default:
break;
}
// 服务被杀死后会自动重启
return START_STICKY;
}
// 调用父类的 onStartCommand 方法
return super.onStartCommand(intent, flags, startId);
}
// 内存不足时调用的方法,如果有同步任务则取消同步任务
@Override
public void onLowMemory() {
if (mSyncTask!= null) {
mSyncTask.cancelSync();
}
}
// 服务绑定方法,返回 null 表示不支持绑定
@Override
public IBinder onBind(Intent intent) {
return null;
}
// 发送广播的方法
public void sendBroadcast(String msg) {
mSyncProgress = msg;
Intent intent = new Intent(GTASK_SERVICE_BROADCAST_NAME);
intent.putExtra(GTASK_SERVICE_BROADCAST_IS_SYNCING, mSyncTask!= null);
intent.putExtra(GTASK_SERVICE_BROADCAST_PROGRESS_MSG, msg);
sendBroadcast(intent);
}
// 静态方法,开始同步操作,设置活动上下文并启动服务
public static void startSync(Activity activity) {
GTaskManager.getInstance().setActivityContext(activity);
Intent intent = new Intent(activity, GTaskSyncService.class);
intent.putExtra(GTaskSyncService.ACTION_STRING_NAME, GTaskSyncService.ACTION_START_SYNC);
activity.startService(intent);
}
// 静态方法,取消同步操作,发送取消同步的意图并启动服务
public static void cancelSync(Context context) {
Intent intent = new Intent(context, GTaskSyncService.class);
intent.putExtra(GTaskSyncService.ACTION_STRING_NAME, GTaskSyncService.ACTION_CANCEL_SYNC);
context.startService(intent);
}
// 静态方法,检查是否正在同步
public static boolean isSyncing() {
return mSyncTask!= null;
}
// 静态方法,获取同步进度字符串
public static String getProgressString() {
return mSyncProgress;
}
}
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