From 846723508f45898c7a0d51cdaf6c7f5f3dee6e81 Mon Sep 17 00:00:00 2001 From: LWJ <2019440590@qq.com> Date: Fri, 21 Apr 2023 14:05:13 +0800 Subject: [PATCH] =?UTF-8?q?=E6=8F=90=E4=BA=A4gtask=E4=BB=A3=E7=A0=81?= =?UTF-8?q?=E7=B2=BE=E8=AF=BB?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- doc/gtask/.idea/.gitignore | 8 + doc/gtask/.idea/misc.xml | 6 + doc/gtask/.idea/modules.xml | 8 + doc/gtask/data/.idea/.gitignore | 0 doc/gtask/data/.idea/data.iml | 9 + doc/gtask/data/.idea/modules.xml | 8 + doc/gtask/data/.idea/workspace.xml | 39 + doc/gtask/data/MetaData.java | 120 +++ doc/gtask/data/Node.java | 106 +++ doc/gtask/data/SqlData.java | 240 +++++ doc/gtask/data/SqlNote.java | 593 ++++++++++++ doc/gtask/data/Task.java | 339 +++++++ doc/gtask/data/TaskList.java | 386 ++++++++ .../exception/ActionFailureException.java | 48 + .../exception/NetworkFailureException.java | 49 + doc/gtask/gtask.iml | 11 + doc/gtask/remote/GTaskASyncTask.java | 119 +++ doc/gtask/remote/GTaskClient.java | 628 +++++++++++++ doc/gtask/remote/GTaskManager.java | 862 ++++++++++++++++++ doc/gtask/remote/GTaskSyncService.java | 140 +++ 20 files changed, 3719 insertions(+) create mode 100644 doc/gtask/.idea/.gitignore create mode 100644 doc/gtask/.idea/misc.xml create mode 100644 doc/gtask/.idea/modules.xml create mode 100644 doc/gtask/data/.idea/.gitignore create mode 100644 doc/gtask/data/.idea/data.iml create mode 100644 doc/gtask/data/.idea/modules.xml create mode 100644 doc/gtask/data/.idea/workspace.xml create mode 100644 doc/gtask/data/MetaData.java create mode 100644 doc/gtask/data/Node.java create mode 100644 doc/gtask/data/SqlData.java create mode 100644 doc/gtask/data/SqlNote.java create mode 100644 doc/gtask/data/Task.java create mode 100644 doc/gtask/data/TaskList.java create mode 100644 doc/gtask/exception/ActionFailureException.java create mode 100644 doc/gtask/exception/NetworkFailureException.java create mode 100644 doc/gtask/gtask.iml create mode 100644 doc/gtask/remote/GTaskASyncTask.java create mode 100644 doc/gtask/remote/GTaskClient.java create mode 100644 doc/gtask/remote/GTaskManager.java create mode 100644 doc/gtask/remote/GTaskSyncService.java diff --git a/doc/gtask/.idea/.gitignore b/doc/gtask/.idea/.gitignore new file mode 100644 index 0000000..13566b8 --- /dev/null +++ b/doc/gtask/.idea/.gitignore @@ -0,0 +1,8 @@ +# Default ignored files +/shelf/ +/workspace.xml +# Editor-based HTTP Client requests +/httpRequests/ +# Datasource local storage ignored files +/dataSources/ +/dataSources.local.xml diff --git a/doc/gtask/.idea/misc.xml b/doc/gtask/.idea/misc.xml new file mode 100644 index 0000000..639900d --- /dev/null +++ b/doc/gtask/.idea/misc.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/doc/gtask/.idea/modules.xml b/doc/gtask/.idea/modules.xml new file mode 100644 index 0000000..210efeb --- /dev/null +++ b/doc/gtask/.idea/modules.xml @@ -0,0 +1,8 @@ + + + + + + + + \ No newline at end of file diff --git a/doc/gtask/data/.idea/.gitignore b/doc/gtask/data/.idea/.gitignore new file mode 100644 index 0000000..e69de29 diff --git a/doc/gtask/data/.idea/data.iml b/doc/gtask/data/.idea/data.iml new file mode 100644 index 0000000..d6ebd48 --- /dev/null +++ b/doc/gtask/data/.idea/data.iml @@ -0,0 +1,9 @@ + + + + + + + + + \ No newline at end of file diff --git a/doc/gtask/data/.idea/modules.xml b/doc/gtask/data/.idea/modules.xml new file mode 100644 index 0000000..91a0752 --- /dev/null +++ b/doc/gtask/data/.idea/modules.xml @@ -0,0 +1,8 @@ + + + + + + + + \ No newline at end of file diff --git a/doc/gtask/data/.idea/workspace.xml b/doc/gtask/data/.idea/workspace.xml new file mode 100644 index 0000000..4600dfb --- /dev/null +++ b/doc/gtask/data/.idea/workspace.xml @@ -0,0 +1,39 @@ + + + + + + + + + + + + + + 1681655453377 + + + + + + \ No newline at end of file diff --git a/doc/gtask/data/MetaData.java b/doc/gtask/data/MetaData.java new file mode 100644 index 0000000..dca0466 --- /dev/null +++ b/doc/gtask/data/MetaData.java @@ -0,0 +1,120 @@ +/* + * 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; + +public class MetaData extends Task { + /* + * 功能描述：得到类的简写名称存入字符串TAG中 + * 实现过程：调用getSimpleName ()函数 + */ + private final static String TAG = MetaData.class.getSimpleName(); + private String mRelatedGid = null; + /* + * 功能描述：设置数据，即生成元数据库 + * 实现过程：调用JSONObject库函数put ()，Task类中的setNotes ()和setName ()函数 + * 参数注解： + */ + public void setMeta(String gid, JSONObject metaInfo) + { + //对函数块进行注释 + try { + metaInfo.put(GTaskStringUtils.META_HEAD_GTASK_ID, gid); + /* + * 将这对键值放入metaInfo这个jsonobject对象中 + */ + } catch (JSONException e) { + Log.e(TAG, "failed to put related gid"); + /* + * 输出错误信息 + */ + } + setNotes(metaInfo.toString()); + setName(GTaskStringUtils.META_NOTE_NAME); + } + /* + * 功能描述：获取相关联的Gid + */ + public String getRelatedGid() { + return mRelatedGid; + } + /* + * 功能描述：判断当前数据是否为空，若为空则返回真即值得保存 + * Made By CuiCan + */ + @Override + public boolean isWorthSaving() { + return getNotes() != null; + } + /* + * 功能描述：使用远程json数据对象设置元数据内容 + * 实现过程：调用父类Task中的setContentByRemoteJSON ()函数，并 + * 参数注解： + */ + @Override + public void setContentByRemoteJSON(JSONObject js) { + super.setContentByRemoteJSON(js); + if (getNotes() != null) { + try { + JSONObject metaInfo = new JSONObject(getNotes().trim()); + mRelatedGid = metaInfo.getString(GTaskStringUtils.META_HEAD_GTASK_ID); + } catch (JSONException e) { + Log.w(TAG, "failed to get related gid"); + /* + * 输出警告信息 + */ + mRelatedGid = null; + } + } + } + /* + * 功能描述：使用本地json数据对象设置元数据内容，一般不会用到，若用到，则抛出异常 + * Made By CuiCan + */ + @Override + public void setContentByLocalJSON(JSONObject js) { + // this function should not be called + throw new IllegalAccessError("MetaData:setContentByLocalJSON should not be called"); + /* + * 传递非法参数异常 + */ + } + /* + * 功能描述：从元数据内容中获取本地json对象，一般不会用到，若用到，则抛出异常 + * Made By CuiCan + */ + @Override + public JSONObject getLocalJSONFromContent() { + throw new IllegalAccessError("MetaData:getLocalJSONFromContent should not be called"); + /* + * 传递非法参数异常 + * Made By Cui Can + */ + } + /* + * 功能描述：获取同步动作状态，一般不会用到，若用到，则抛出异常 + * Made By CuiCan + */ + @Override + public int getSyncAction(Cursor c) { + throw new IllegalAccessError("MetaData:getSyncAction should not be called"); + /* + * 传递非法参数异常 + * Made By Cui Can + */ + } + +} diff --git a/doc/gtask/data/Node.java b/doc/gtask/data/Node.java new file mode 100644 index 0000000..9bc7f75 --- /dev/null +++ b/doc/gtask/data/Node.java @@ -0,0 +1,106 @@ +/* + * 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 org.json.JSONObject; + +/** + * 应该是同步操作的基础数据类型，定义了相关指示同步操作的常量 + * 关键字：abstract + */ +public abstract class Node { + //定义了各种用于表征同步状态的常量 + public static final int SYNC_ACTION_NONE = 0;// 本地和云端都无可更新内容（即本地和云端内容一致） + + public static final int SYNC_ACTION_ADD_REMOTE = 1;// 需要在远程云端增加内容 + + public static final int SYNC_ACTION_ADD_LOCAL = 2;// 需要在本地增加内容 + + public static final int SYNC_ACTION_DEL_REMOTE = 3;// 需要在远程云端删除内容 + + public static final int SYNC_ACTION_DEL_LOCAL = 4;// 需要在本地删除内容 + + public static final int SYNC_ACTION_UPDATE_REMOTE = 5;// 需要将本地内容更新到远程云端 + + public static final int SYNC_ACTION_UPDATE_LOCAL = 6;// 需要将远程云端内容更新到本地 + + public static final int SYNC_ACTION_UPDATE_CONFLICT = 7;// 同步出现冲突 + + public static final int SYNC_ACTION_ERROR = 8;// 同步出现错误 + + private String mGid; + + private String mName; + + private long mLastModified;//记录最后一次修改时间 + + private boolean mDeleted;//表征是否被删除 + + public Node() { + mGid = null; + mName = ""; + mLastModified = 0; + mDeleted = false; + } + + public abstract JSONObject getCreateAction(int actionId); + + public abstract JSONObject getUpdateAction(int actionId); + + public abstract void setContentByRemoteJSON(JSONObject js); + + public abstract void setContentByLocalJSON(JSONObject js); + + public abstract JSONObject getLocalJSONFromContent(); + + public abstract int getSyncAction(Cursor c); + + public void setGid(String gid) { + this.mGid = gid; + } + + public void setName(String name) { + this.mName = name; + } + + public void setLastModified(long lastModified) { + this.mLastModified = lastModified; + } + + public void setDeleted(boolean deleted) { + this.mDeleted = deleted; + } + + public String getGid() { + return this.mGid; + } + + public String getName() { + return this.mName; + } + + public long getLastModified() { + return this.mLastModified; + } + + public boolean getDeleted() { + return this.mDeleted; + } + +} \ No newline at end of file diff --git a/doc/gtask/data/SqlData.java b/doc/gtask/data/SqlData.java new file mode 100644 index 0000000..487e2d9 --- /dev/null +++ b/doc/gtask/data/SqlData.java @@ -0,0 +1,240 @@ +/* + * 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. + */ + +/* + * Description：用于支持小米便签最底层的数据库相关操作，和sqlnote的关系上是子集关系，即data是note的子集（节点）。 + * SqlData其实就是也就是所谓数据中的数据 + */ + +package net.micode.notes.gtask.data; +/* + * 功能描述： + * 实现过程： + * 参数注解： + * Made By CuiCan + */ + +public class SqlData { + /* + * 功能描述：得到类的简写名称存入字符串TAG中 + * 实现过程：调用getSimpleName ()函数 + * Made By CuiCan + */ + private static final String TAG = SqlData.class.getSimpleName(); + + private static final int INVALID_ID = -99999;//为mDataId置初始值-99999 + + + /** + * 来自Notes类中定义的DataColumn中的一些常量 + */ + + // 集合了interface DataColumns中所有SF常量 + public static final String[] PROJECTION_DATA = new String[] { + DataColumns.ID, DataColumns.MIME_TYPE, DataColumns.CONTENT, DataColumns.DATA1, + DataColumns.DATA3 + }; + + /** + * 以下五个变量作为sql表中5列的编号 + */ + public static final int DATA_ID_COLUMN = 0; + + public static final int DATA_MIME_TYPE_COLUMN = 1; + + public static final int DATA_CONTENT_COLUMN = 2; + + public static final int DATA_CONTENT_DATA_1_COLUMN = 3; + + public static final int DATA_CONTENT_DATA_3_COLUMN = 4; + + private ContentResolver mContentResolver; + //判断是否直接用Content生成，是为true，否则为false + private boolean mIsCreate; + + private long mDataId; + + private String mDataMimeType; + + private String mDataContent; + + private long mDataContentData1; + + private String mDataContentData3; + + private ContentValues mDiffDataValues; + + /* + * 功能描述：构造函数，用于初始化数据 + * 参数注解：mContentResolver用于获取ContentProvider提供的数据 + * 参数注解： mIsCreate表征当前数据是用哪种方式创建（两种构造函数的参数不同） + * 参数注解： + * Made By CuiCan + */ + public SqlData(Context context) { + mContentResolver = context.getContentResolver(); + mIsCreate = true; + mDataId = INVALID_ID;//mDataId置初始值-99999 + mDataMimeType = DataConstants.NOTE; + mDataContent = ""; + mDataContentData1 = 0; + mDataContentData3 = ""; + mDiffDataValues = new ContentValues(); + } + + + /* + * 功能描述：构造函数，初始化数据 + * 参数注解：mContentResolver用于获取ContentProvider提供的数据 + * 参数注解： mIsCreate表征当前数据是用哪种方式创建（两种构造函数的参数不同） + * 参数注解： + * Made By CuiCan + */ + public SqlData(Context context, Cursor c) { + mContentResolver = context.getContentResolver(); + mIsCreate = false; + loadFromCursor(c); + mDiffDataValues = new ContentValues(); + } + + /* + * 功能描述：从光标处加载数据 + * 从当前的光标处将五列的数据加载到该类的对象 + * Made By CuiCan + */ + 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); + } + + + /* + * 功能描述：设置用于共享的数据，并提供异常抛出与处理机制 + * 参数注解： + * Made By CuiCan + */ + public void setContent(JSONObject js) throws JSONException { + //如果传入的JSONObject对象中有DataColumns.ID这一项，则设置，否则设为INVALID_ID + 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); + } + mDataContentData1 = dataContentData1; + + String dataContentData3 = js.has(DataColumns.DATA3) ? js.getString(DataColumns.DATA3) : ""; + if (mIsCreate || !mDataContentData3.equals(dataContentData3)) { + mDiffDataValues.put(DataColumns.DATA3, dataContentData3); + } + mDataContentData3 = dataContentData3; + } + + + /* + * 功能描述：获取共享的数据内容，并提供异常抛出与处理机制 + * 参数注解： + * Made By CuiCan + */ + public JSONObject getContent() throws JSONException { + if (mIsCreate) { + Log.e(TAG, "it seems that we haven't created this in database yet"); + return null; + } + //创建JSONObject对象。并将相关数据放入其中，并返回。 + 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; + } + + /* + * 功能描述：commit函数用于把当前造作所做的修改保存到数据库 + * 参数注解： + * Made By CuiCan + */ + 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; + } + + /* + * 功能描述：获取当前id + * 实现过程： + * 参数注解： + * Made By CuiCan + */ + public long getId() { + return mDataId; + } +} \ No newline at end of file diff --git a/doc/gtask/data/SqlNote.java b/doc/gtask/data/SqlNote.java new file mode 100644 index 0000000..26e99dd --- /dev/null +++ b/doc/gtask/data/SqlNote.java @@ -0,0 +1,593 @@ +/* + * 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. + */ + +/* + * Description：用于支持小米便签最底层的数据库相关操作，和sqldata的关系上是父集关系，即note是data的子父集。 + * 和SqlData相比，SqlNote算是真正意义上的数据了。 + */ + +package net.micode.notes.gtask.data; +/* + * 功能描述： + * 实现过程： + * 参数注解： + * Made By CuiCan + */ + +public class SqlNote { + /* + * 功能描述：得到类的简写名称存入字符串TAG中 + * 实现过程：调用getSimpleName ()函数 + * Made By CuiCan + */ + private static final String TAG = SqlNote.class.getSimpleName(); + + private static final int INVALID_ID = -99999; + // 集合了interface NoteColumns中所有SF常量（17个） + 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 + }; + + //以下设置17个列的编号 + public static final int ID_COLUMN = 0; + + public static final int ALERTED_DATE_COLUMN = 1; + + public static final int BG_COLOR_ID_COLUMN = 2; + + public static final int CREATED_DATE_COLUMN = 3; + + public static final int HAS_ATTACHMENT_COLUMN = 4; + + public static final int MODIFIED_DATE_COLUMN = 5; + + public static final int NOTES_COUNT_COLUMN = 6; + + public static final int PARENT_ID_COLUMN = 7; + + public static final int SNIPPET_COLUMN = 8; + + public static final int TYPE_COLUMN = 9; + + public static final int WIDGET_ID_COLUMN = 10; + + public static final int WIDGET_TYPE_COLUMN = 11; + + public static final int SYNC_ID_COLUMN = 12; + + public static final int LOCAL_MODIFIED_COLUMN = 13; + + public static final int ORIGIN_PARENT_ID_COLUMN = 14; + + public static final int GTASK_ID_COLUMN = 15; + + public static final int VERSION_COLUMN = 16; + + //一下定义了17个内部的变量，其中12个可以由content中获得，5个需要初始化为0或者new + private Context mContext; + + private ContentResolver mContentResolver; + + private boolean mIsCreate; + + private long mId; + + private long mAlertDate; + + private int mBgColorId; + + private long mCreatedDate; + + private int mHasAttachment; + + private long mModifiedDate; + + private long mParentId; + + private String mSnippet; + + private int mType; + + private int mWidgetId; + + private int mWidgetType; + + private long mOriginParent; + + private long mVersion; + + private ContentValues mDiffNoteValues; + + private ArrayList mDataList; + + /* + * 功能描述：构造函数 + * 参数注解： mIsCreate用于标示构造方式 + * 参数注解： + * Made By CuiCan + */ + //构造函数只有context，对所有的变量进行初始化 + public SqlNote(Context context) { + mContext = context; + mContentResolver = context.getContentResolver(); + mIsCreate = true; + mId = INVALID_ID; + mAlertDate = 0; + mBgColorId = ResourceParser.getDefaultBgId(context); + mCreatedDate = System.currentTimeMillis();//调用系统函数获得创建时间 + mHasAttachment = 0; + mModifiedDate = System.currentTimeMillis();//最后一次修改时间初始化为创建时间 + 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(); + } + + + /* + * 功能描述：构造函数 + * 参数注解： mIsCreate用于标示构造方式 + * 参数注解： + * Made By CuiCan + */ + //构造函数有context和一个数据库的cursor，多数变量通过cursor指向的一条记录直接进行初始化 + public SqlNote(Context context, Cursor c) { + mContext = context; + mContentResolver = context.getContentResolver(); + mIsCreate = false; + loadFromCursor(c); + mDataList = new ArrayList(); + // + if (mType == Notes.TYPE_NOTE) + loadDataContent(); + mDiffNoteValues = new ContentValues(); + } + + + /* + * 功能描述：构造函数 + * 参数注解： mIsCreate用于标示构造方式 + * 参数注解： + * Made By CuiCan + */ + public SqlNote(Context context, long id) { + mContext = context; + mContentResolver = context.getContentResolver(); + mIsCreate = false; + loadFromCursor(id); + mDataList = new ArrayList(); + if (mType == Notes.TYPE_NOTE) + loadDataContent(); + mDiffNoteValues = new ContentValues(); + + } + + /* + * 功能描述：通过id从光标处加载数据 + * Made By CuiCan + */ + 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);//通过id获得对应的ContentResolver中的cursor + if (c != null) { + c.moveToNext(); + loadFromCursor(c);//然后加载数据进行初始化，这样函数 + //SqlNote(Context context, long id)与SqlNote(Context context, long id)的实现方式基本相同 + } else { + Log.w(TAG, "loadFromCursor: cursor = null"); + } + } finally { + if (c != null) + c.close(); + } + } + + /* + * 功能描述：通过游标从光标处加载数据 + * Made By CuiCan + */ + private void loadFromCursor(Cursor c) { + //直接从一条记录中的获得以下变量的初始值 + 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); + } + + /* + * 功能描述：通过content机制获取共享数据并加载到数据库当前游标处 + * 参数注解： + * Made By CuiCan + */ + 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(); + } + } + + /* + * 功能描述：设置通过content机制用于共享的数据信息 + * 参数注解： + * Made By CuiCan + */ + 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) { + // for folder we can only update the snnipet and type + 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; + } + + /* + * 功能描述：获取content机制提供的数据并加载到note中 + * 参数注解： + * Made By CuiCan + */ + 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) {//类型为note时 + 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) {//类型为文件夹或者 + 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; + } + + /* + * 功能描述：给当前id设置父id + * 参数注解： + * Made By CuiCan + */ + public void setParentId(long id) { + mParentId = id; + mDiffNoteValues.put(NoteColumns.PARENT_ID, id); + } + + /* + * 功能描述：给当前id设置Gtaskid + * 参数注解： + * Made By CuiCan + */ + public void setGtaskId(String gid) { + mDiffNoteValues.put(NoteColumns.GTASK_ID, gid); + } + + /* + * 功能描述：给当前id设置同步id + * 参数注解： + * Made By CuiCan + */ + public void setSyncId(long syncId) { + mDiffNoteValues.put(NoteColumns.SYNC_ID, syncId); + } + + /* + * 功能描述：初始化本地修改，即撤销所有当前修改 + * 参数注解： + * Made By CuiCan + */ + public void resetLocalModified() { + mDiffNoteValues.put(NoteColumns.LOCAL_MODIFIED, 0); + } + + /* + * 功能描述：获得当前id + * 参数注解： + * Made By CuiCan + */ + public long getId() { + return mId; + } + + /* + * 功能描述：获得当前id的父id + * 参数注解： + * Made By CuiCan + */ + public long getParentId() { + return mParentId; + } + + /* + * 功能描述：获取小片段即用于显示的部分便签内容 + * 参数注解： + * Made By CuiCan + */ + public String getSnippet() { + return mSnippet; + } + + /* + * 功能描述：判断是否为便签类型 + * 参数注解： + * Made By CuiCan + */ + public boolean isNoteType() { + return mType == Notes.TYPE_NOTE; + } + + /* + * 功能描述：commit函数用于把当前造作所做的修改保存到数据库 + * 参数注解： + * Made By CuiCan + */ + 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) {//直接使用sqldata中的实现 + 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) {//构造字符串 + 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); + } + } + } + + // refresh local info + loadFromCursor(mId); + if (mType == Notes.TYPE_NOTE) + loadDataContent(); + + mDiffNoteValues.clear(); + mIsCreate = false; + } +} \ No newline at end of file diff --git a/doc/gtask/data/Task.java b/doc/gtask/data/Task.java new file mode 100644 index 0000000..17ca36a --- /dev/null +++ b/doc/gtask/data/Task.java @@ -0,0 +1,339 @@ +/* + * 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; + +public class Task extends Node { + private static final String TAG = Task.class.getSimpleName(); + + private boolean mCompleted;//是否完成 + + private String mNotes; + + private JSONObject mMetaInfo;//将在实例中存储数据的类型 + + private Task mPriorSibling;//对应的优先兄弟Task的指针（待完善） + + private TaskList mParent;//所在的任务列表的指针 + + public Task() { + super(); + mCompleted = false; + mNotes = null; + mPriorSibling = null;//TaskList中当前Task前面的Task的指针 + mParent = null;//当前Task所在的TaskList + mMetaInfo = null; + } + + 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 + if (mParent!= null) { + 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 + if (mParent!= null) { + 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; + } + + 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; + } + + 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"); + } + } + } + + public void setContentByLocalJSON(JSONObject js) { //��metadata����ʵʩ + 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(); + } + } + + public JSONObject getLocalJSONFromContent() { + String name = getName(); + try { + if (mMetaInfo == null) { + // new task created from web + 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 { + // synced task + 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; + } + } + + 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; + } + } + } + + 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; + } + + // validate the note id now + 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) { + // there is no local update + if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) { + // no update both side + return SYNC_ACTION_NONE; + } else { + // apply remote to local + return SYNC_ACTION_UPDATE_LOCAL; + } + } else { + // validate gtask 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()) { + // local modification only + 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; + } + + public boolean isWorthSaving() { + return mMetaInfo != null || (getName() != null && getName().trim().length() > 0) + || (getNotes() != null && getNotes().trim().length() > 0); + } + + public void setCompleted(boolean completed) { + this.mCompleted = completed; + } + + public void setNotes(String notes) { + this.mNotes = notes; + } + + public void setPriorSibling(Task priorSibling) { + this.mPriorSibling = priorSibling; + } + + public void setParent(TaskList parent) { + this.mParent = parent; + } + + public boolean getCompleted() { + return this.mCompleted; + } + + public String getNotes() { + return this.mNotes; + } + + public Task getPriorSibling() { + return this.mPriorSibling; + } + + public TaskList getParent() { + return this.mParent; + } + +} \ No newline at end of file diff --git a/doc/gtask/data/TaskList.java b/doc/gtask/data/TaskList.java new file mode 100644 index 0000000..0b335a0 --- /dev/null +++ b/doc/gtask/data/TaskList.java @@ -0,0 +1,386 @@ +/* + * 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; + +public class TaskList extends Node { + private static final String TAG = TaskList.class.getSimpleName();//tag标记 + + private int mIndex;//当前TaskList的指针 + + private ArrayList mChildren;//类中主要的保存数据的单元，用来实现一个以Task为元素的ArrayList + + public TaskList() { + super(); + mChildren = new ArrayList(); + mIndex = 1; + } + + /* (non-Javadoc) + * @see net.micode.notes.gtask.data.Node#getCreateAction(int) + * 生成并返回一个包含了一定数据的JSONObject实体 + */ + 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实体 + 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; + } + + /* (non-Javadoc) + * @see net.micode.notes.gtask.data.Node#getUpdateAction(int) + * 生成并返回一个包含了一定数据的JSONObject实体 + */ + 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; + } + + 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"); + } + } + } + + 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(); + } + } + + 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; + } + } + + public int getSyncAction(Cursor c) { + try { + if (c.getInt(SqlNote.LOCAL_MODIFIED_COLUMN) == 0) { + // there is no local update + if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) { + // no update both side + return SYNC_ACTION_NONE; + } else { + // apply remote to local + return SYNC_ACTION_UPDATE_LOCAL; + } + } else { + // validate gtask 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()) { + // local modification only + return SYNC_ACTION_UPDATE_REMOTE; + } else { + // for folder conflicts, just apply local modification + return SYNC_ACTION_UPDATE_REMOTE; + } + } + } catch (Exception e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + } + + return SYNC_ACTION_ERROR; + } + + /** + * @return + * 功能：获得TaskList的大小，即mChildren的大小 + */ + public int getChildTaskCount() { + return mChildren.size(); + } + + /** + * @param task + * @return 返回值为是否成功添加任务。 + * 功能：在当前任务表末尾添加新的任务。 + */ + public boolean addChildTask(Task task) { + boolean ret = false; + if (task != null && !mChildren.contains(task)) { + ret = mChildren.add(task); + if (ret) { + // need to set prior sibling and parent + task.setPriorSibling(mChildren.isEmpty() ? null : mChildren + .get(mChildren.size() - 1)); + task.setParent(this); + //注意：每一次ArrayList的变化都要紧跟相关Task中PriorSibling的更改 + //，接下来几个函数都有相关操作 + } + } + return ret; + } + + /** + * @param task + * @param index + * @return + * 功能：在当前任务表的指定位置添加新的任务。 + */ + 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); + + // update the task list + 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; + } + + /** + * @param task + * @return 返回删除是否成功 + * 功能：删除TaskList中的一个Task + */ + public boolean removeChildTask(Task task) { + boolean ret = false; + int index = mChildren.indexOf(task); + if (index != -1) { + ret = mChildren.remove(task); + + if (ret) { + // reset prior sibling and parent + task.setPriorSibling(null); + task.setParent(null); + + // update the task list + if (index != mChildren.size()) { + mChildren.get(index).setPriorSibling( + index == 0 ? null : mChildren.get(index - 1)); + } + } + } + return ret; + } + + /** + * @param task + * @param index + * @return + * 功能：将当前TaskList中含有的某个Task移到index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)); + //利用已实现好的功能完成当下功能； + } + + /** + * @param gid + * @return返回寻找结果 + * 功能：按gid寻找Task + */ + 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; + } + + /** + * @param task + * @return + * 功能：返回指定Task的index + */ + public int getChildTaskIndex(Task task) { + return mChildren.indexOf(task); + } + + /** + * @param index + * @return + * 功能：返回指定index的Task + */ + public Task getChildTaskByIndex(int index) { + if (index < 0 || index >= mChildren.size()) { + Log.e(TAG, "getTaskByIndex: invalid index"); + return null; + } + return mChildren.get(index); + } + + /** + * @param gid + * @return + * 功能：返回指定gid的Task + */ + public Task getChilTaskByGid(String gid) { + for (Task task : mChildren) {//一种常见的ArrayList的遍历方法（四种，见精读笔记） + if (task.getGid().equals(gid)) + return task; + } + return null; + } + + public ArrayList getChildTaskList() { + return this.mChildren; + } + + public void setIndex(int index) { + this.mIndex = index; + } + + public int getIndex() { + return this.mIndex; + } +} \ No newline at end of file diff --git a/doc/gtask/exception/ActionFailureException.java b/doc/gtask/exception/ActionFailureException.java new file mode 100644 index 0000000..837c153 --- /dev/null +++ b/doc/gtask/exception/ActionFailureException.java @@ -0,0 +1,48 @@ +/* + * 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. + */ + +/* + * Description：支持小米便签运行过程中的运行异常处理。 + */ + +package net.micode.notes.gtask.exception; + +public class ActionFailureException extends RuntimeException { + private static final long serialVersionUID = 4425249765923293627L; + /* + * serialVersionUID相当于java类的身份证。主要用于版本控制。 + * serialVersionUID作用是序列化时保持版本的兼容性，即在版本升级时反序列化仍保持对象的唯一性。 + * Made By Cuican + */ + + public ActionFailureException() { + super(); + } + /* + * 在JAVA类中使用super来引用父类的成分，用this来引用当前对象. + * 如果一个类从另外一个类继承，我们new这个子类的实例对象的时候，这个子类对象里面会有一个父类对象。 + * 怎么去引用里面的父类对象呢？使用super来引用 + * 也就是说，此处super()以及super (paramString)可认为是Exception ()和Exception (paramString) + * Made By Cuican + */ + public ActionFailureException(String paramString) { + super(paramString); + } + + public ActionFailureException(String paramString, Throwable paramThrowable) { + super(paramString, paramThrowable); + } +} diff --git a/doc/gtask/exception/NetworkFailureException.java b/doc/gtask/exception/NetworkFailureException.java new file mode 100644 index 0000000..a15eec9 --- /dev/null +++ b/doc/gtask/exception/NetworkFailureException.java @@ -0,0 +1,49 @@ +/* + * 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. + */ + +/* + * Description：支持小米便签运行过程中的网络异常处理。 + */ + +package net.micode.notes.gtask.exception; + +public class NetworkFailureException extends Exception { + private static final long serialVersionUID = 2107610287180234136L; + /* + * serialVersionUID相当于java类的身份证。主要用于版本控制。 + * serialVersionUID作用是序列化时保持版本的兼容性，即在版本升级时反序列化仍保持对象的唯一性。 + * Made By Cuican + */ + + public NetworkFailureException() { + super(); + } + + /* + * 在JAVA类中使用super来引用父类的成分，用this来引用当前对象. + * 如果一个类从另外一个类继承，我们new这个子类的实例对象的时候，这个子类对象里面会有一个父类对象。 + * 怎么去引用里面的父类对象呢？使用super来引用 + * 也就是说，此处super()以及super (paramString)可认为是Exception ()和Exception (paramString) + * Made By Cuican + */ + public NetworkFailureException(String paramString) { + super(paramString); + } + + public NetworkFailureException(String paramString, Throwable paramThrowable) { + super(paramString, paramThrowable); + } +} \ No newline at end of file diff --git a/doc/gtask/gtask.iml b/doc/gtask/gtask.iml new file mode 100644 index 0000000..8c543da --- /dev/null +++ b/doc/gtask/gtask.iml @@ -0,0 +1,11 @@ + + + + + + + + + + + \ No newline at end of file diff --git a/doc/gtask/remote/GTaskASyncTask.java b/doc/gtask/remote/GTaskASyncTask.java new file mode 100644 index 0000000..6547e64 --- /dev/null +++ b/doc/gtask/remote/GTaskASyncTask.java @@ -0,0 +1,119 @@ + +/* + * 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; + +/*异步操作类，实现GTask的异步操作过程 + * 主要方法： + * private void showNotification(int tickerId, String content) 向用户提示当前同步的状态，是一个用于交互的方法 + * protected Integer doInBackground(Void... unused) 此方法在后台线程执行，完成任务的主要工作，通常需要较长的时间 + * protected void onProgressUpdate(String... progress) 可以使用进度条增加用户体验度。 此方法在主线程执行，用于显示任务执行的进度。 + * protected void onPostExecute(Integer result) 相当于Handler 处理UI的方式，在这里面可以使用在doInBackground 得到的结果处理操作UI + */ +public class GTaskASyncTask extends AsyncTask { + + + private static int GTASK_SYNC_NOTIFICATION_ID = 5234235; + + public interface OnCompleteListener { + void onComplete(); + } + + private Context mContext; + + private NotificationManager mNotifiManager; + + private GTaskManager mTaskManager; + + private OnCompleteListener mOnCompleteListener; + + public GTaskASyncTask(Context context, OnCompleteListener listener) { + mContext = context; + mOnCompleteListener = listener; + mNotifiManager = (NotificationManager) mContext + .getSystemService(Context.NOTIFICATION_SERVICE); + mTaskManager = GTaskManager.getInstance(); + } + + public void cancelSync() { + mTaskManager.cancelSync(); + } + + public void publishProgess(String message) { // 发布进度单位，系统将会调用onProgressUpdate()方法更新这些值 + publishProgress(new String[] { + message + }); + } + + private void showNotification(int tickerId, String content) { + Notification notification = new Notification(R.drawable.notification, mContext + .getString(tickerId), System.currentTimeMillis()); + notification.defaults = Notification.DEFAULT_LIGHTS; // 调用系统自带灯光 + notification.flags = Notification.FLAG_AUTO_CANCEL; // 点击清除按钮或点击通知后会自动消失 + PendingIntent pendingIntent; //一个描述了想要启动一个Activity、Broadcast或是Service的意图 + if (tickerId != R.string.ticker_success) { + pendingIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext, + NotesPreferenceActivity.class), 0); //如果同步不成功，那么从系统取得一个用于启动一个NotesPreferenceActivity的PendingIntent对象 + + } else { + pendingIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext, + NotesListActivity.class), 0); //如果同步成功，那么从系统取得一个用于启动一个NotesListActivity的PendingIntent对象 + } + notification.setLatestEventInfo(mContext, mContext.getString(R.string.app_name), content, + pendingIntent); + mNotifiManager.notify(GTASK_SYNC_NOTIFICATION_ID, notification);//通过NotificationManager对象的notify（）方法来执行一个notification的消息 + } + + @Override + protected Integer doInBackground(Void... unused) { + publishProgess(mContext.getString(R.string.sync_progress_login, NotesPreferenceActivity + .getSyncAccountName(mContext))); //利用getString,将把 NotesPreferenceActivity.getSyncAccountName(mContext))的字符串内容传进sync_progress_login中 + return mTaskManager.sync(mContext, this); //进行后台同步具体操作 + } + + @Override + protected void onProgressUpdate(String... progress) { + showNotification(R.string.ticker_syncing, progress[0]); + if (mContext instanceof GTaskSyncService) { //instanceof 判断mContext是否是GTaskSyncService的实例 + ((GTaskSyncService) mContext).sendBroadcast(progress[0]); + } + } + + @Override + protected void onPostExecute(Integer result) { //用于在执行完后台任务后更新UI,显示结果 + if (result == GTaskManager.STATE_SUCCESS) { + showNotification(R.string.ticker_success, mContext.getString( + R.string.success_sync_account, mTaskManager.getSyncAccount())); + NotesPreferenceActivity.setLastSyncTime(mContext, System.currentTimeMillis()); //设置最新同步的时间 + } 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)); + } //几种不同情况下的结果显示 + if (mOnCompleteListener != null) { + new Thread(new Runnable() { //这里好像是方法内的一个线程，但是并不太懂什么意思 + + public void run() { //完成后的操作，使用onComplete()将所有值都重新初始化，相当于完成一次操作 + mOnCompleteListener.onComplete(); + } + }).start(); + } + } +} \ No newline at end of file diff --git a/doc/gtask/remote/GTaskClient.java b/doc/gtask/remote/GTaskClient.java new file mode 100644 index 0000000..5084993 --- /dev/null +++ b/doc/gtask/remote/GTaskClient.java @@ -0,0 +1,628 @@ +/* + * 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; + +/* + * 主要功能：实现GTASK的登录操作，进行GTASK任务的创建，创建任务列表，从网络上获取任务和任务列表的内容 + * 主要使用类或技术：accountManager JSONObject HttpParams authToken Gid + */ +public class GTaskClient { + private static final String TAG = GTaskClient.class.getSimpleName(); + + private static final String GTASK_URL = "https://mail.google.com/tasks/"; //这个是指定的URL + + private static final String GTASK_GET_URL = "https://mail.google.com/tasks/ig"; + + private static final String GTASK_POST_URL = "https://mail.google.com/tasks/r/ig"; + + private static GTaskClient mInstance = null; + + private DefaultHttpClient mHttpClient; + + private String mGetUrl; + + private String mPostUrl; + + private long mClientVersion; + + private boolean mLoggedin; + + private long mLastLoginTime; + + private int mActionId; + + private Account mAccount; + + private JSONArray mUpdateArray; + + private GTaskClient() { + mHttpClient = null; + mGetUrl = GTASK_GET_URL; + mPostUrl = GTASK_POST_URL; + mClientVersion = -1; + mLoggedin = false; + mLastLoginTime = 0; + mActionId = 1; + mAccount = null; + mUpdateArray = null; + } + + /*用来获取的实例化对象 + * 使用 getInstance() + * 返回mInstance这个实例化对象 + */ + public static synchronized GTaskClient getInstance() { + if (mInstance == null) { + mInstance = new GTaskClient(); + } + return mInstance; + } + + /*用来实现登录操作的函数，传入的参数是一个Activity + * 设置登录操作限制时间，如果超时则需要重新登录 + * 有两种登录方式，使用用户自己的URL登录或者使用谷歌官方的URL登录 + * 返回true或者false，即最后是否登陆成功 + */ + public boolean login(Activity activity) { + // we suppose that the cookie would expire after 5 minutes + // then we need to re-login + //判断距离最后一次登录操作是否超过5分钟 + final long interval = 1000 * 60 * 5; + if (mLastLoginTime + interval < System.currentTimeMillis()) { + mLoggedin = false; + } + + // need to re-login after account switch 重新登录操作 + if (mLoggedin + && !TextUtils.equals(getSyncAccount().name, NotesPreferenceActivity + .getSyncAccountName(activity))) { + mLoggedin = false; + } + + //如果没超过时间，则不需要重新登录 + if (mLoggedin) { + Log.d(TAG, "already logged in"); + return true; + } + + mLastLoginTime = System.currentTimeMillis();//更新最后登录时间，改为系统当前的时间 + String authToken = loginGoogleAccount(activity, false);//判断是否登录到谷歌账户 + if (authToken == null) { + Log.e(TAG, "login google account failed"); + return false; + } + + // login with custom domain if necessary + //尝试使用用户自己的域名登录 + if (!(mAccount.name.toLowerCase().endsWith("gmail.com") || mAccount.name.toLowerCase() //将用户账号名改为统一格式（小写）后判断是否为一个谷歌账号地址 + .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"; //设置用户对应的getUrl + mPostUrl = url.toString() + "r/ig"; //设置用户对应的postUrl + + if (tryToLoginGtask(activity, authToken)) { + mLoggedin = true; + } + } + + // try to login with google official url + //如果用户账户无法登录，则使用谷歌官方的URI进行登录 + if (!mLoggedin) { + mGetUrl = GTASK_GET_URL; + mPostUrl = GTASK_POST_URL; + if (!tryToLoginGtask(activity, authToken)) { + return false; + } + } + + mLoggedin = true; + return true; + } + + /*具体实现登录谷歌账户的方法 + * 使用令牌机制 + * 使用AccountManager来管理注册账号 + * 返回值是账号的令牌 + */ + private String loginGoogleAccount(Activity activity, boolean invalidateToken) { + String authToken; //令牌，是登录操作保证安全性的一个方法 + AccountManager accountManager = AccountManager.get(activity);//AccountManager这个类给用户提供了集中注册账号的接口 + Account[] accounts = accountManager.getAccountsByType("com.google");//获取全部以com.google结尾的account + + if (accounts.length == 0) { + Log.e(TAG, "there is no available google account"); + return null; + } + + String accountName = NotesPreferenceActivity.getSyncAccountName(activity); + Account account = null; + //遍历获得的accounts信息，寻找已经记录过的账户信息 + 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; + } + + // get the token now + //获取选中账号的令牌 + AccountManagerFuture accountManagerFuture = accountManager.getAuthToken(account, + "goanna_mobile", null, activity, null, null); + try { + Bundle authTokenBundle = accountManagerFuture.getResult(); + authToken = authTokenBundle.getString(AccountManager.KEY_AUTHTOKEN); + //如果是invalidateToken，那么需要调用invalidateAuthToken(String, String)方法废除这个无效token + if (invalidateToken) { + accountManager.invalidateAuthToken("com.google", authToken); + loginGoogleAccount(activity, false); + } + } catch (Exception e) { + Log.e(TAG, "get auth token failed"); + authToken = null; + } + + return authToken; + } + + //尝试登陆Gtask，这只是一个预先判断令牌是否是有效以及是否能登上GTask的方法,而不是具体实现登陆的方法 + private boolean tryToLoginGtask(Activity activity, String authToken) { + if (!loginGtask(authToken)) { + // maybe the auth token is out of authTokedate, now let's invalidate the + // token and try again + //删除过一个无效的authToken，申请一个新的后再次尝试登陆 + authToken = loginGoogleAccount(activity, true); + if (authToken == null) { + Log.e(TAG, "login google account failed"); + return false; + } + + if (!loginGtask(authToken)) { + Log.e(TAG, "login gtask failed"); + return false; + } + } + return true; + } + + //实现登录GTask的具体操作 + private boolean loginGtask(String authToken) { + int timeoutConnection = 10000; + int timeoutSocket = 15000; //socket是一种通信连接实现数据的交换的端口 + HttpParams httpParameters = new BasicHttpParams(); //实例化一个新的HTTP参数类 + HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection);//设置连接超时时间 + HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);//设置设置端口超时时间 + mHttpClient = new DefaultHttpClient(httpParameters); + BasicCookieStore localBasicCookieStore = new BasicCookieStore(); //设置本地cookie + mHttpClient.setCookieStore(localBasicCookieStore); + HttpProtocolParams.setUseExpectContinue(mHttpClient.getParams(), false); + + // login gtask + try { + String loginUrl = mGetUrl + "?auth=" + authToken; //设置登录的url + HttpGet httpGet = new HttpGet(loginUrl); //通过登录的uri实例化网页上资源的查找 + HttpResponse response = null; + response = mHttpClient.execute(httpGet); + + // get the cookie now + //获取CookieStore里存放的cookie,看如果存有“GTL(不知道什么意思)”，则说明有验证成功的有效的cookie + List cookies = mHttpClient.getCookieStore().getCookies(); + boolean hasAuthCookie = false; + for (Cookie cookie : cookies) { + if (cookie.getName().contains("GTL")) { + hasAuthCookie = true; + } + } + if (!hasAuthCookie) { + Log.w(TAG, "it seems that there is no auth cookie"); + } + + // get the client version + //获取client的内容，具体操作是在返回的Content中截取从_setup(开始到)}中间的字符串内容，也就是gtask_url的内容 + String resString = getResponseContent(response.getEntity()); + String jsBegin = "_setup("; + String jsEnd = ")}"; + int begin = resString.indexOf(jsBegin); + int end = resString.lastIndexOf(jsEnd); + String jsString = null; + if (begin != -1 && end != -1 && begin < end) { + jsString = resString.substring(begin + jsBegin.length(), end); + } + JSONObject js = new JSONObject(jsString); + mClientVersion = js.getLong("v"); + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + return false; + } catch (Exception e) { + // simply catch all exceptions + Log.e(TAG, "httpget gtask_url failed"); + return false; + } + + return true; + } + + private int getActionId() { + return mActionId++; + } + + /*实例化创建一个用于向网络传输数据的对象 + * 使用HttpPost类 + * 返回一个httpPost实例化对象，但里面还没有内容 + */ + private HttpPost createHttpPost() { + HttpPost httpPost = new HttpPost(mPostUrl); + httpPost.setHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8"); + httpPost.setHeader("AT", "1"); + return httpPost; + } + + /*通过URL获取响应后返回的数据，也就是网络上的数据和资源 + * 使用getContentEncoding()获取网络上的资源和数据 + * 返回值就是获取到的资源 + */ + private String getResponseContent(HttpEntity entity) throws IOException { + String contentEncoding = null; + if (entity.getContentEncoding() != null) {//通过URL得到HttpEntity对象，如果不为空则使用getContent（）方法创建一个流将数据从网络都过来 + contentEncoding = entity.getContentEncoding().getValue(); + Log.d(TAG, "encoding: " + contentEncoding); + } + + InputStream input = entity.getContent(); + if (contentEncoding != null && contentEncoding.equalsIgnoreCase("gzip")) {//GZIP是使用DEFLATE进行压缩数据的另一个压缩库 + input = new GZIPInputStream(entity.getContent()); + } else if (contentEncoding != null && contentEncoding.equalsIgnoreCase("deflate")) {//DEFLATE是一个无专利的压缩算法，它可以实现无损数据压缩 + Inflater inflater = new Inflater(true); + input = new InflaterInputStream(entity.getContent(), inflater); + } + + try { + InputStreamReader isr = new InputStreamReader(input); + BufferedReader br = new BufferedReader(isr);//是一个包装类，它可以包装字符流，将字符流放入缓存里，先把字符读到缓存里，到缓存满了时候，再读入内存，是为了提供读的效率而设计的 + StringBuilder sb = new StringBuilder(); + + while (true) { + String buff = br.readLine(); + if (buff == null) { + return sb.toString(); + } + sb = sb.append(buff); + } + } finally { + input.close(); + } + } + + /*通过JSON发送请求 + * 请求的具体内容在json的实例化对象js中然后传入 + * 利用UrlEncodedFormEntity entity和httpPost.setEntity(entity)方法把js中的内容放置到httpPost中 + * 执行请求后使用getResponseContent方法得到返回的数据和资源 + * 将资源再次放入json后返回 + */ + private JSONObject postRequest(JSONObject js) throws NetworkFailureException { + if (!mLoggedin) {//未登录 + Log.e(TAG, "please login first"); + throw new ActionFailureException("not logged in"); + } + + //实例化一个httpPost的对象用来向服务器传输数据，在这里就是发送请求，而请求的内容在js里 + HttpPost httpPost = createHttpPost(); + try { + LinkedList list = new LinkedList(); + list.add(new BasicNameValuePair("r", js.toString())); + UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list, "UTF-8"); //UrlEncodedFormEntity()的形式比较单一，是普通的键值对 + httpPost.setEntity(entity); + + // execute the post + //执行这个请求 + HttpResponse response = mHttpClient.execute(httpPost); + String jsString = getResponseContent(response.getEntity()); + return new JSONObject(jsString); + + } catch (ClientProtocolException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new NetworkFailureException("postRequest failed"); + } catch (IOException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new NetworkFailureException("postRequest failed"); + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("unable to convert response content to jsonobject"); + } catch (Exception e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("error occurs when posting request"); + } + } + + /*创建单个任务 + * 传入参数是一个.gtask.data.Task包里Task类的对象 + * 利用json获取Task里的内容,并且创建相应的jsPost + * 利用postRequest得到任务的返回信息 + * 使用task.setGid设置task的new_ID + */ + public void createTask(Task task) throws NetworkFailureException { + commitUpdate(); + try { + JSONObject jsPost = new JSONObject(); + JSONArray actionList = new JSONArray(); + + // action_list + actionList.put(task.getCreateAction(getActionId())); + jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); + + // client_version + jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); + + // post + JSONObject jsResponse = postRequest(jsPost); + JSONObject jsResult = (JSONObject) jsResponse.getJSONArray( + GTaskStringUtils.GTASK_JSON_RESULTS).get(0); + task.setGid(jsResult.getString(GTaskStringUtils.GTASK_JSON_NEW_ID)); + + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("create task: handing jsonobject failed"); + } + } + + /* + * 创建一个任务列表，与createTask几乎一样，区别就是最后设置的是tasklist的gid + */ + public void createTaskList(TaskList tasklist) throws NetworkFailureException { + commitUpdate(); + try { + JSONObject jsPost = new JSONObject(); + JSONArray actionList = new JSONArray(); + + // action_list + actionList.put(tasklist.getCreateAction(getActionId())); + jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); + + // client version + jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); + + // post + JSONObject jsResponse = postRequest(jsPost); + JSONObject jsResult = (JSONObject) jsResponse.getJSONArray( + GTaskStringUtils.GTASK_JSON_RESULTS).get(0); + tasklist.setGid(jsResult.getString(GTaskStringUtils.GTASK_JSON_NEW_ID)); + + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("create tasklist: handing jsonobject failed"); + } + } + + /* + * 同步更新操作 + * 使用JSONObject进行数据存储，使用jsPost.put，Put的信息包括UpdateArray和ClientVersion + * 使用postRequest发送这个jspost,进行处理 + */ + public void commitUpdate() throws NetworkFailureException { + if (mUpdateArray != null) { + try { + JSONObject jsPost = new JSONObject(); + + // action_list + jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, mUpdateArray); + + // client_version + jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); + + postRequest(jsPost); + mUpdateArray = null; + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("commit update: handing jsonobject failed"); + } + } + } + + /* + * 添加更新的事项 + * 调用commitUpdate()实现 + */ + public void addUpdateNode(Node node) throws NetworkFailureException { + if (node != null) { + // too many update items may result in an error + // set max to 10 items + if (mUpdateArray != null && mUpdateArray.length() > 10) { + commitUpdate(); + } + + if (mUpdateArray == null) + mUpdateArray = new JSONArray(); + mUpdateArray.put(node.getUpdateAction(getActionId())); + } + } + + /* + * 移动task,比如讲task移动到不同的task列表中去 + * 通过getGid获取task所属列表的gid + * 通过JSONObject.put(String name, Object value)函数设置移动后的task的相关属性值，从而达到移动的目的 + * 最后还是通过postRequest进行更新后的发送 + */ + public void moveTask(Task task, TaskList preParent, TaskList curParent) + throws NetworkFailureException { + commitUpdate(); + try { + JSONObject jsPost = new JSONObject(); + JSONArray actionList = new JSONArray(); + JSONObject action = new JSONObject(); + + // action_list + action.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, + GTaskStringUtils.GTASK_JSON_ACTION_TYPE_MOVE); + action.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, getActionId()); + action.put(GTaskStringUtils.GTASK_JSON_ID, task.getGid()); + if (preParent == curParent && task.getPriorSibling() != null) { + // put prioring_sibing_id only if moving within the tasklist and + // it is not the first one + //设置优先级ID，只有当移动是发生在文件中 + action.put(GTaskStringUtils.GTASK_JSON_PRIOR_SIBLING_ID, task.getPriorSibling()); + } + action.put(GTaskStringUtils.GTASK_JSON_SOURCE_LIST, preParent.getGid()); //设置移动前所属列表 + action.put(GTaskStringUtils.GTASK_JSON_DEST_PARENT, curParent.getGid()); //设置当前所属列表 + if (preParent != curParent) { + // put the dest_list only if moving between tasklists + action.put(GTaskStringUtils.GTASK_JSON_DEST_LIST, curParent.getGid()); + } + actionList.put(action); + //最后将ACTION_LIST加入到jsPost中 + jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); + + // client_version + jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); + + postRequest(jsPost); + + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("move task: handing jsonobject failed"); + } + } + + /* + * 删除操作节点 + * 还是利用JSON + * 删除过后使用postRequest发送删除后的结果 + */ + public void deleteNode(Node node) throws NetworkFailureException { + commitUpdate(); + try { + JSONObject jsPost = new JSONObject(); + JSONArray actionList = new JSONArray(); + + // action_list + node.setDeleted(true); + actionList.put(node.getUpdateAction(getActionId())); //这里会获取到删除操作的ID，加入到actionLiast中 + jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); + + // client_version + jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); + + postRequest(jsPost); + mUpdateArray = null; + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("delete node: handing jsonobject failed"); + } + } + + /* + * 获取任务列表 + * 首先通过GetURI使用getResponseContent从网上获取数据 + * 然后筛选出"_setup("到)}的部分，并且从中获取GTASK_JSON_LISTS的内容返回 + */ + 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); + + // get the task list + //筛选工作，把筛选出的字符串放入jsString + String resString = getResponseContent(response.getEntity()); + String jsBegin = "_setup("; + String jsEnd = ")}"; + int begin = resString.indexOf(jsBegin); + int end = resString.lastIndexOf(jsEnd); + String jsString = null; + if (begin != -1 && end != -1 && begin < end) { + jsString = resString.substring(begin + jsBegin.length(), end); + } + JSONObject js = new JSONObject(jsString); + //获取GTASK_JSON_LISTS + 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"); + } + } + + /* + * 通过传入的TASKList的gid,从网络上获取相应属于这个任务列表的任务 + */ + public JSONArray getTaskList(String listGid) throws NetworkFailureException { + commitUpdate(); + try { + JSONObject jsPost = new JSONObject(); + JSONArray actionList = new JSONArray(); + JSONObject action = new JSONObject(); + + // action_list + action.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, + GTaskStringUtils.GTASK_JSON_ACTION_TYPE_GETALL); + action.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, getActionId()); + action.put(GTaskStringUtils.GTASK_JSON_LIST_ID, listGid); //这里设置为传入的listGid + action.put(GTaskStringUtils.GTASK_JSON_GET_DELETED, false); + actionList.put(action); + jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); + + // client_version + jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); + + JSONObject jsResponse = postRequest(jsPost); + return jsResponse.getJSONArray(GTaskStringUtils.GTASK_JSON_TASKS); + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("get task list: handing jsonobject failed"); + } + } + + public Account getSyncAccount() { + return mAccount; + } + + //重置更新的内容 + public void resetUpdateArray() { + mUpdateArray = null; + } +} \ No newline at end of file diff --git a/doc/gtask/remote/GTaskManager.java b/doc/gtask/remote/GTaskManager.java new file mode 100644 index 0000000..b10e77c --- /dev/null +++ b/doc/gtask/remote/GTaskManager.java @@ -0,0 +1,862 @@ +/* + * 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; + +public class GTaskManager { + private static final String TAG = GTaskManager.class.getSimpleName(); + 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; + private static GTaskManager mInstance = null; + + private Activity mActivity; + private Context mContext; + private ContentResolver mContentResolver; + private boolean mSyncing; + private boolean mCancelled; + private HashMap mGTaskListHashMap; + private HashMap mGTaskHashMap; + private HashMap mMetaHashMap; + private TaskList mMetaList; + private HashSet mLocalDeleteIdMap; + private HashMap mGidToNid; + private HashMap mNidToGid; + + private GTaskManager() { //对象初始化函数 + mSyncing = false; //正在同步,flase代表未执行 + mCancelled = false; //全局标识，flase代表可以执行 + mGTaskListHashMap = new HashMap(); //<>代表Java的泛型,就是创建一个用类型作为参数的类。 + mGTaskHashMap = new HashMap(); + mMetaHashMap = new HashMap(); + mMetaList = null; + mLocalDeleteIdMap = new HashSet(); + mGidToNid = new HashMap(); //GoogleID to NodeID?? + mNidToGid = new HashMap(); //NodeID to GoogleID???通过hashmap散列表建立映射 + } + + /** + * 包含关键字synchronized，语言级同步，指明该函数可能运行在多线程的环境下。 + * 功能：类初始化函数 + * @author TTS + * @return GtaskManger + */ + public static synchronized GTaskManager getInstance() { //可能运行在多线程环境下，使用语言级同步--synchronized + if (mInstance == null) { + mInstance = new GTaskManager(); + } + return mInstance; + } + + /** + * 包含关键字synchronized，语言级同步，指明该函数可能运行在多线程的环境下。 + * @author TTS + * @param activity + */ + public synchronized void setActivityContext(Activity activity) { + // used for getting auth token + mActivity = activity; + } + + /** + * 核心函数 + * 功能：实现了本地同步操作和远端同步操作 + * @author TTS + * @param context-----获取上下文 + * @param asyncTask-------用于同步的异步操作类 + * @return int + */ + public int sync(Context context, GTaskASyncTask asyncTask) { //核心函数 + if (mSyncing) { + Log.d(TAG, "Sync is in progress"); //创建日志文件（调试信息），debug + return STATE_SYNC_IN_PROGRESS; + } + mContext = context; + mContentResolver = mContext.getContentResolver(); + mSyncing = true; + mCancelled = false; + mGTaskListHashMap.clear(); + mGTaskHashMap.clear(); + mMetaHashMap.clear(); + mLocalDeleteIdMap.clear(); + mGidToNid.clear(); + mNidToGid.clear(); + + try { + GTaskClient client = GTaskClient.getInstance(); //getInstance即为创建一个实例,client--客户机 + client.resetUpdateArray(); //JSONArray类型，reset即置为NULL + + // login google task + if (!mCancelled) { + if (!client.login(mActivity)) { + throw new NetworkFailureException("login google task failed"); + } + } + + // get the task list from google + asyncTask.publishProgess(mContext.getString(R.string.sync_progress_init_list)); + initGTaskList(); //获取Google上的JSONtasklist转为本地TaskList + + // do content sync work + asyncTask.publishProgess(mContext.getString(R.string.sync_progress_syncing)); + syncContent(); + } catch (NetworkFailureException e) { //分为两种异常，此类异常为网络异常 + Log.e(TAG, e.toString()); //创建日志文件（调试信息），error + return STATE_NETWORK_ERROR; + } catch (ActionFailureException e) { //此类异常为操作异常 + Log.e(TAG, e.toString()); + return STATE_INTERNAL_ERROR; + } catch (Exception e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + return STATE_INTERNAL_ERROR; + } finally { + mGTaskListHashMap.clear(); + mGTaskHashMap.clear(); + mMetaHashMap.clear(); + mLocalDeleteIdMap.clear(); + mGidToNid.clear(); + mNidToGid.clear(); + mSyncing = false; + } + + return mCancelled ? STATE_SYNC_CANCELLED : STATE_SUCCESS; + } + + /** + *功能：初始化GtaskList，获取Google上的JSONtasklist转为本地TaskList。 + *获得的数据存储在mMetaList，mGTaskListHashMap，mGTaskHashMap + *@author TTS + *@exception NetworkFailureException + *@return void + */ + private void initGTaskList() throws NetworkFailureException { + if (mCancelled) + return; + GTaskClient client = GTaskClient.getInstance(); //getInstance即为创建一个实例，client应指远端客户机 + try { + //Json对象是Name Value对(即子元素)的无序集合，相当于一个Map对象。JsonObject类是bantouyan-json库对Json对象的抽象，提供操纵Json对象的各种方法。 + //其格式为{"key1":value1,"key2",value2....};key 必须是字符串。 + //因为ajax请求不刷新页面，但配合js可以实现局部刷新，因此json常常被用来作为异步请求的返回对象使用。 + JSONArray jsTaskLists = client.getTaskLists(); //原注释为get task list------lists？？？ + + // init meta list first + mMetaList = null; //TaskList类型 + for (int i = 0; i < jsTaskLists.length(); i++) { + JSONObject object = jsTaskLists.getJSONObject(i); //JSONObject与JSONArray一个为对象，一个为数组。此处取出单个JASONObject + String gid = object.getString(GTaskStringUtils.GTASK_JSON_ID); + String name = object.getString(GTaskStringUtils.GTASK_JSON_NAME); + + if (name.equals(GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_META)) { + mMetaList = new TaskList(); //MetaList意为元表,Tasklist类型，此处为初始化 + mMetaList.setContentByRemoteJSON(object); //将JSON中部分数据复制到自己定义的对象中相对应的数据：name->mname... + + // load meta data + JSONArray jsMetas = client.getTaskList(gid); //原注释为get action_list------list？？？ + for (int j = 0; j < jsMetas.length(); j++) { + object = (JSONObject) jsMetas.getJSONObject(j); + MetaData metaData = new MetaData(); //继承自Node + metaData.setContentByRemoteJSON(object); + if (metaData.isWorthSaving()) { //if not worth to save，metadata将不加入mMetaList + mMetaList.addChildTask(metaData); + if (metaData.getGid() != null) { + mMetaHashMap.put(metaData.getRelatedGid(), metaData); + } + } + } + } + } + + // create meta list if not existed + if (mMetaList == null) { + mMetaList = new TaskList(); + mMetaList.setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX + + GTaskStringUtils.FOLDER_META); + GTaskClient.getInstance().createTaskList(mMetaList); + } + + // init task list + for (int i = 0; i < jsTaskLists.length(); i++) { + JSONObject object = jsTaskLists.getJSONObject(i); + String gid = object.getString(GTaskStringUtils.GTASK_JSON_ID); //通过getString函数传入本地某个标志数据的名称，获取其在远端的名称。 + String name = object.getString(GTaskStringUtils.GTASK_JSON_NAME); + + if (name.startsWith(GTaskStringUtils.MIUI_FOLDER_PREFFIX) + && !name.equals(GTaskStringUtils.MIUI_FOLDER_PREFFIX + + GTaskStringUtils.FOLDER_META)) { + TaskList tasklist = new TaskList(); //继承自Node + tasklist.setContentByRemoteJSON(object); + mGTaskListHashMap.put(gid, tasklist); + mGTaskHashMap.put(gid, tasklist); //为什么加两遍？？？ + + // load tasks + 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"); + } + } + + /** + * 功能：本地内容同步操作 + * @throws NetworkFailureException + * @return 无返回值 + */ + private void syncContent() throws NetworkFailureException { //本地内容同步操作 + int syncType; + Cursor c = null; //数据库指针 + String gid; //GoogleID?? + Node node; //Node包含Sync_Action的不同类型 + + mLocalDeleteIdMap.clear(); //HashSet类型 + + if (mCancelled) { + return; + } + + // for local deleted note + 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; + } + } + + // sync folder first + syncFolder(); + + // for note existing in database + 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)); //通过hashmap建立联系 + mNidToGid.put(c.getLong(SqlNote.ID_COLUMN), gid); //通过hashmap建立联系 + syncType = node.getSyncAction(c); + } else { + if (c.getString(SqlNote.GTASK_ID_COLUMN).trim().length() == 0) { + // local add + syncType = Node.SYNC_ACTION_ADD_REMOTE; + } else { + // remote delete + syncType = Node.SYNC_ACTION_DEL_LOCAL; + } + } + doContentSync(syncType, node, c); + } + } else { + Log.w(TAG, "failed to query existing note in database"); + } + + } finally { + if (c != null) { + c.close(); + c = null; + } + } + + // go through remaining items + Iterator> iter = mGTaskHashMap.entrySet().iterator(); //Iterator迭代器 + while (iter.hasNext()) { + Map.Entry entry = iter.next(); + node = entry.getValue(); + doContentSync(Node.SYNC_ACTION_ADD_LOCAL, node, null); + } + + // mCancelled can be set by another thread, so we neet to check one by //thread----线程 + // one + // clear local delete table + if (!mCancelled) { + if (!DataUtils.batchDeleteNotes(mContentResolver, mLocalDeleteIdMap)) { + throw new ActionFailureException("failed to batch-delete local deleted notes"); + } + } + + // refresh local sync id + if (!mCancelled) { + GTaskClient.getInstance().commitUpdate(); + refreshLocalSyncId(); + } + + } + + /** + * 功能： + * @author TTS + * @throws NetworkFailureException + */ + private void syncFolder() throws NetworkFailureException { + Cursor c = null; + String gid; + Node node; + int syncType; + + if (mCancelled) { + return; + } + + // for root folder + 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); + // for system folder, only update remote name if necessary + 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; + } + } + + // for call-note folder + 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); + // for system folder, only update remote name if + // necessary + if (!node.getName().equals( + GTaskStringUtils.MIUI_FOLDER_PREFFIX + + GTaskStringUtils.FOLDER_CALL_NOTE)) + doContentSync(Node.SYNC_ACTION_UPDATE_REMOTE, node, c); + } else { + doContentSync(Node.SYNC_ACTION_ADD_REMOTE, node, c); + } + } + } else { + Log.w(TAG, "failed to query call note folder"); + } + } finally { + if (c != null) { + c.close(); + c = null; + } + } + + // for local existing folders + try { + c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE, + "(type=? AND parent_id<>?)", new String[] { + String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER) + }, NoteColumns.TYPE + " DESC"); + if (c != null) { + while (c.moveToNext()) { + gid = c.getString(SqlNote.GTASK_ID_COLUMN); + node = mGTaskHashMap.get(gid); + if (node != null) { + mGTaskHashMap.remove(gid); + mGidToNid.put(gid, c.getLong(SqlNote.ID_COLUMN)); + mNidToGid.put(c.getLong(SqlNote.ID_COLUMN), gid); + syncType = node.getSyncAction(c); + } else { + if (c.getString(SqlNote.GTASK_ID_COLUMN).trim().length() == 0) { + // local add + syncType = Node.SYNC_ACTION_ADD_REMOTE; + } else { + // remote delete + syncType = Node.SYNC_ACTION_DEL_LOCAL; + } + } + doContentSync(syncType, node, c); + } + } else { + Log.w(TAG, "failed to query existing folder"); + } + } finally { + if (c != null) { + c.close(); + c = null; + } + } + + // for remote add folders + Iterator> 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(); + } + + /** + * 功能：syncType分类，addLocalNode，addRemoteNode，deleteNode，updateLocalNode，updateRemoteNode + * @author TTS + * @param syncType + * @param node + * @param c + * @throws NetworkFailureException + */ + private void doContentSync(int syncType, Node node, Cursor c) throws NetworkFailureException { + if (mCancelled) { + return; + } + + MetaData meta; + switch (syncType) { + case Node.SYNC_ACTION_ADD_LOCAL: + addLocalNode(node); + break; + case Node.SYNC_ACTION_ADD_REMOTE: + addRemoteNode(node, c); + break; + case Node.SYNC_ACTION_DEL_LOCAL: + meta = mMetaHashMap.get(c.getString(SqlNote.GTASK_ID_COLUMN)); + if (meta != null) { + GTaskClient.getInstance().deleteNode(meta); + } + mLocalDeleteIdMap.add(c.getLong(SqlNote.ID_COLUMN)); + break; + case Node.SYNC_ACTION_DEL_REMOTE: + meta = mMetaHashMap.get(node.getGid()); + if (meta != null) { + GTaskClient.getInstance().deleteNode(meta); + } + GTaskClient.getInstance().deleteNode(node); + break; + case Node.SYNC_ACTION_UPDATE_LOCAL: + updateLocalNode(node, c); + break; + case Node.SYNC_ACTION_UPDATE_REMOTE: + updateRemoteNode(node, c); + break; + case Node.SYNC_ACTION_UPDATE_CONFLICT: + // merging both modifications maybe a good idea + // right now just use local update simply + updateRemoteNode(node, c); + break; + case Node.SYNC_ACTION_NONE: + break; + case Node.SYNC_ACTION_ERROR: + default: + throw new ActionFailureException("unkown sync action type"); + } + } + + /** + * 功能：本地增加Node + * @author TTS + * @param node + * @throws NetworkFailureException + */ + private void addLocalNode(Node node) throws NetworkFailureException { + if (mCancelled) { + return; + } + + SqlNote sqlNote; + if (node instanceof TaskList) { + if (node.getName().equals( + GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_DEFAULT)) { + sqlNote = new SqlNote(mContext, Notes.ID_ROOT_FOLDER); + } else if (node.getName().equals( + GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_CALL_NOTE)) { + sqlNote = new SqlNote(mContext, Notes.ID_CALL_RECORD_FOLDER); + } else { + sqlNote = new SqlNote(mContext); + sqlNote.setContent(node.getLocalJSONFromContent()); + sqlNote.setParentId(Notes.ID_ROOT_FOLDER); + } + } else { + sqlNote = new SqlNote(mContext); + JSONObject js = node.getLocalJSONFromContent(); + try { + if (js.has(GTaskStringUtils.META_HEAD_NOTE)) { + JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE); + if (note.has(NoteColumns.ID)) { + long id = note.getLong(NoteColumns.ID); + if (DataUtils.existInNoteDatabase(mContentResolver, id)) { + // the id is not available, have to create a new one + note.remove(NoteColumns.ID); + } + } + } + + if (js.has(GTaskStringUtils.META_HEAD_DATA)) { + JSONArray dataArray = js.getJSONArray(GTaskStringUtils.META_HEAD_DATA); + for (int i = 0; i < dataArray.length(); i++) { + JSONObject data = dataArray.getJSONObject(i); + if (data.has(DataColumns.ID)) { + long dataId = data.getLong(DataColumns.ID); + if (DataUtils.existInDataDatabase(mContentResolver, dataId)) { + // the data id is not available, have to create + // a new one + data.remove(DataColumns.ID); + } + } + } + + } + } catch (JSONException e) { + Log.w(TAG, e.toString()); + e.printStackTrace(); + } + sqlNote.setContent(js); + + Long parentId = mGidToNid.get(((Task) node).getParent().getGid()); + if (parentId == null) { + Log.e(TAG, "cannot find task's parent id locally"); + throw new ActionFailureException("cannot add local node"); + } + sqlNote.setParentId(parentId.longValue()); + } + + // create the local node + sqlNote.setGtaskId(node.getGid()); + sqlNote.commit(false); + + // update gid-nid mapping + mGidToNid.put(node.getGid(), sqlNote.getId()); + mNidToGid.put(sqlNote.getId(), node.getGid()); + + // update meta + updateRemoteMeta(node.getGid(), sqlNote); + } + + /** + * 功能：update本地node + * @author TTS + * @param node + * ----同步操作的基础数据类型 + * @param c + * ----Cursor + * @throws NetworkFailureException + */ + private void updateLocalNode(Node node, Cursor c) throws NetworkFailureException { + if (mCancelled) { + return; + } + + SqlNote sqlNote; + // update the note locally + sqlNote = new SqlNote(mContext, c); + sqlNote.setContent(node.getLocalJSONFromContent()); + + Long parentId = (node instanceof Task) ? mGidToNid.get(((Task) node).getParent().getGid()) + : new Long(Notes.ID_ROOT_FOLDER); + if (parentId == null) { + Log.e(TAG, "cannot find task's parent id locally"); + throw new ActionFailureException("cannot update local node"); + } + sqlNote.setParentId(parentId.longValue()); + sqlNote.commit(true); + + // update meta info + updateRemoteMeta(node.getGid(), sqlNote); + } + + /** + * 功能：远程增加Node + * 需要updateRemoteMeta + * @author TTS + * @param node + * ----同步操作的基础数据类型 + * @param c + * --Cursor + * @throws NetworkFailureException + */ + private void addRemoteNode(Node node, Cursor c) throws NetworkFailureException { + if (mCancelled) { + return; + } + + SqlNote sqlNote = new SqlNote(mContext, c); //从本地mContext中获取内容 + Node n; + + // update remotely + if (sqlNote.isNoteType()) { + Task task = new Task(); + task.setContentByLocalJSON(sqlNote.getContent()); + + String parentGid = mNidToGid.get(sqlNote.getParentId()); + if (parentGid == null) { + Log.e(TAG, "cannot find task's parent tasklist"); //调试信息 + throw new ActionFailureException("cannot add remote task"); + } + mGTaskListHashMap.get(parentGid).addChildTask(task); //在本地生成的GTaskList中增加子结点 + + //登录远程服务器，创建Task + GTaskClient.getInstance().createTask(task); + n = (Node) task; + + // add meta + updateRemoteMeta(task.getGid(), sqlNote); + } else { + TaskList tasklist = null; + + // we need to skip folder if it has already existed + String folderName = GTaskStringUtils.MIUI_FOLDER_PREFFIX; + if (sqlNote.getId() == Notes.ID_ROOT_FOLDER) + folderName += GTaskStringUtils.FOLDER_DEFAULT; + else if (sqlNote.getId() == Notes.ID_CALL_RECORD_FOLDER) + folderName += GTaskStringUtils.FOLDER_CALL_NOTE; + else + folderName += sqlNote.getSnippet(); + + //iterator迭代器，通过统一的接口迭代所有的map元素 + Iterator> 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; + } + } + + // no match we can add now + if (tasklist == null) { + tasklist = new TaskList(); + tasklist.setContentByLocalJSON(sqlNote.getContent()); + GTaskClient.getInstance().createTaskList(tasklist); + mGTaskListHashMap.put(tasklist.getGid(), tasklist); + } + n = (Node) tasklist; + } + + // update local note + sqlNote.setGtaskId(n.getGid()); + sqlNote.commit(false); + sqlNote.resetLocalModified(); + sqlNote.commit(true); + + // gid-id mapping //创建id间的映射 + mGidToNid.put(n.getGid(), sqlNote.getId()); + mNidToGid.put(sqlNote.getId(), n.getGid()); + } + + /** + * 功能：更新远端的Node，包含meta更新(updateRemoteMeta) + * @author TTS + * @param node + * ----同步操作的基础数据类型 + * @param c + * --Cursor + * @throws NetworkFailureException + */ + private void updateRemoteNode(Node node, Cursor c) throws NetworkFailureException { + if (mCancelled) { + return; + } + + SqlNote sqlNote = new SqlNote(mContext, c); + + // update remotely + node.setContentByLocalJSON(sqlNote.getContent()); + GTaskClient.getInstance().addUpdateNode(node); //GTaskClient用途为从本地登陆远端服务器 + + // update meta + updateRemoteMeta(node.getGid(), sqlNote); + + // move task if necessary + if (sqlNote.isNoteType()) { + Task task = (Task) node; + TaskList preParentList = task.getParent(); + //preParentList为通过node获取的父节点列表 + + String curParentGid = mNidToGid.get(sqlNote.getParentId()); + //curParentGid为通过光标在数据库中找到sqlNote的mParentId，再通过mNidToGid由long类型转为String类型的Gid + + if (curParentGid == null) { + Log.e(TAG, "cannot find task's parent tasklist"); + throw new ActionFailureException("cannot update remote task"); + } + TaskList curParentList = mGTaskListHashMap.get(curParentGid); + //通过HashMap找到对应Gid的TaskList + + if (preParentList != curParentList) { //????????????? + preParentList.removeChildTask(task); + curParentList.addChildTask(task); + GTaskClient.getInstance().moveTask(task, preParentList, curParentList); + } + } + + // clear local modified flag + sqlNote.resetLocalModified(); + //commit到本地数据库 + sqlNote.commit(true); + } + + /** + * 功能：升级远程meta。 meta---元数据----计算机文件系统管理数据---管理数据的数据。 + * @author TTS + * @param gid + * ---GoogleID为String类型 + * @param sqlNote + * ---同步前的数据库操作，故使用类SqlNote + * @throws NetworkFailureException + */ + private void updateRemoteMeta(String gid, SqlNote sqlNote) throws NetworkFailureException { + if (sqlNote != null && sqlNote.isNoteType()) { + MetaData metaData = mMetaHashMap.get(gid); + if (metaData != null) { + metaData.setMeta(gid, sqlNote.getContent()); + GTaskClient.getInstance().addUpdateNode(metaData); + } else { + metaData = new MetaData(); + metaData.setMeta(gid, sqlNote.getContent()); + mMetaList.addChildTask(metaData); + mMetaHashMap.put(gid, metaData); + GTaskClient.getInstance().createTask(metaData); + } + } + } + + /** + * 功能：刷新本地，给sync的ID对应上最后更改过的对象 + * @author TTS + * @return void + * @throws NetworkFailureException + */ + private void refreshLocalSyncId() throws NetworkFailureException { + if (mCancelled) { + return; + } + + // get the latest gtask list //获取最近的（最晚的）gtask list + mGTaskHashMap.clear(); + mGTaskListHashMap.clear(); + mMetaHashMap.clear(); + initGTaskList(); + + Cursor c = null; + try { + c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE, + "(type<>? AND parent_id<>?)", new String[] { + String.valueOf(Notes.TYPE_SYSTEM), String.valueOf(Notes.ID_TRASH_FOLER) + }, NoteColumns.TYPE + " DESC"); //query语句：五个参数，NoteColumns.TYPE + " DESC"-----为按类型递减顺序返回查询结果。new String[] {String.valueOf(Notes.TYPE_SYSTEM), String.valueOf(Notes.ID_TRASH_FOLER)}------为选择参数。"(type<>? AND parent_id<>?)"-------指明返回行过滤器。SqlNote.PROJECTION_NOTE--------应返回的数据列的名字。Notes.CONTENT_NOTE_URI--------contentProvider包含所有数据集所对应的uri + if (c != null) { + while (c.moveToNext()) { + String gid = c.getString(SqlNote.GTASK_ID_COLUMN); + Node node = mGTaskHashMap.get(gid); + if (node != null) { + mGTaskHashMap.remove(gid); + ContentValues values = new ContentValues(); //在ContentValues中创建键值对。准备通过contentResolver写入数据 + values.put(NoteColumns.SYNC_ID, node.getLastModified()); + mContentResolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, //进行批量更改，选择参数为NULL，应该可以用insert替换，参数分别为表名和需要更新的value对象。 + c.getLong(SqlNote.ID_COLUMN)), values, null, null); + } else { + Log.e(TAG, "something is missed"); + throw new ActionFailureException( + "some local items don't have gid after sync"); + } + } + } else { + Log.w(TAG, "failed to query local note to refresh sync id"); + } + } finally { + if (c != null) { + c.close(); + c = null; + } + } + } + + /** + * 功能：获取同步账号,mAccount.name + * @author TTS + * @return String + */ + public String getSyncAccount() { + return GTaskClient.getInstance().getSyncAccount().name; + } + + /** + * 功能：取消同步，置mCancelled为true + * @author TTS + */ + public void cancelSync() { + mCancelled = true; + } +} \ No newline at end of file diff --git a/doc/gtask/remote/GTaskSyncService.java b/doc/gtask/remote/GTaskSyncService.java new file mode 100644 index 0000000..b64ec28 --- /dev/null +++ b/doc/gtask/remote/GTaskSyncService.java @@ -0,0 +1,140 @@ +/* + * 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; + +/* + * Service是在一段不定的时间运行在后台，不和用户交互的应用组件 + * 主要方法： + * private void startSync() 启动一个同步工作 + * private void cancelSync() 取消同步 + * public void onCreate() + * public int onStartCommand(Intent intent, int flags, int startId) service生命周期的组成部分，相当于重启service（比如在被暂停之后），而不是创建一个新的service + * public void onLowMemory() 在没有内存的情况下如果存在service则结束掉这的service + * public IBinder onBind() + * public void sendBroadcast(String msg) 发送同步的相关通知 + * public static void startSync(Activity activity) + * public static void cancelSync(Context context) + * public static boolean isSyncing() 判读是否在进行同步 + * public static String getProgressString() 获取当前进度的信息 + */ + +public class GTaskSyncService extends Service { + public final static String ACTION_STRING_NAME = "sync_action_type"; + + public final static int ACTION_START_SYNC = 0; + + public final static int ACTION_CANCEL_SYNC = 1; + + public final static int ACTION_INVALID = 2; + + public final static String GTASK_SERVICE_BROADCAST_NAME = "net.micode.notes.gtask.remote.gtask_sync_service"; + + public final static String GTASK_SERVICE_BROADCAST_IS_SYNCING = "isSyncing"; + + public final static String GTASK_SERVICE_BROADCAST_PROGRESS_MSG = "progressMsg"; + + private static GTaskASyncTask mSyncTask = null; + + private static String mSyncProgress = ""; + + //开始一个同步的工作 + private void startSync() { + if (mSyncTask == null) { + mSyncTask = new GTaskASyncTask(this, new GTaskASyncTask.OnCompleteListener() { + public void onComplete() { + mSyncTask = null; + sendBroadcast(""); + stopSelf(); + } + }); + sendBroadcast(""); + mSyncTask.execute(); //这个函数让任务是以单线程队列方式或线程池队列方式运行 + } + } + + + private void cancelSync() { + if (mSyncTask != null) { + mSyncTask.cancelSync(); + } + } + + @Override + public void onCreate() { //初始化一个service + mSyncTask = null; + } + + @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)) { + //两种情况，开始同步或者取消同步 + case ACTION_START_SYNC: + startSync(); + break; + case ACTION_CANCEL_SYNC: + cancelSync(); + break; + default: + break; + } + return START_STICKY; //等待新的intent来是这个service继续运行 + } + return super.onStartCommand(intent, flags, startId); + } + + @Override + public void onLowMemory() { + if (mSyncTask != null) { + mSyncTask.cancelSync(); + } + } + + public IBinder onBind(Intent intent) { //不知道干吗用的 + return null; + } + + public void sendBroadcast(String msg) { + mSyncProgress = msg; + Intent intent = new Intent(GTASK_SERVICE_BROADCAST_NAME); //创建一个新的Intent + intent.putExtra(GTASK_SERVICE_BROADCAST_IS_SYNCING, mSyncTask != null); //附加INTENT中的相应参数的值 + intent.putExtra(GTASK_SERVICE_BROADCAST_PROGRESS_MSG, msg); + sendBroadcast(intent); //发送这个通知 + } + + public static void startSync(Activity activity) {//执行一个service，service的内容里的同步动作就是开始同步 + GTaskManager.getInstance().setActivityContext(activity); + Intent intent = new Intent(activity, GTaskSyncService.class); + intent.putExtra(GTaskSyncService.ACTION_STRING_NAME, GTaskSyncService.ACTION_START_SYNC); + activity.startService(intent); + } + + public static void cancelSync(Context context) {//执行一个service，service的内容里的同步动作就是取消同步 + Intent intent = new Intent(context, GTaskSyncService.class); + intent.putExtra(GTaskSyncService.ACTION_STRING_NAME, GTaskSyncService.ACTION_CANCEL_SYNC); + context.startService(intent); + } + + public static boolean isSyncing() { + return mSyncTask != null; + } + + public static String getProgressString() { + return mSyncProgress; + } +} \ No newline at end of file