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ReadMiNotes/标注/TaskList.java

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/*
* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.micode.notes.gtask.data;
import android.database.Cursor;
import android.util.Log;
import net.micode.notes.data.Notes;
import net.micode.notes.data.Notes.NoteColumns;
import net.micode.notes.gtask.exception.ActionFailureException;
import net.micode.notes.tool.GTaskStringUtils;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
public class TaskList extends Node {
private static final String TAG = TaskList.class.getSimpleName();
private int mIndex;
private ArrayList<Task> mChildren;
public TaskList() {
super();
mChildren = new ArrayList<Task>();
mIndex = 1;
}
public JSONObject getCreateAction(int actionId) {
JSONObject js = new JSONObject();
try {
// action_type
js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
GTaskStringUtils.GTASK_JSON_ACTION_TYPE_CREATE);
// action_id
js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId);
// index
js.put(GTaskStringUtils.GTASK_JSON_INDEX, mIndex);
// entity_delta
JSONObject entity = new JSONObject();
entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName());
entity.put(GTaskStringUtils.GTASK_JSON_CREATOR_ID, "null");
entity.put(GTaskStringUtils.GTASK_JSON_ENTITY_TYPE,
GTaskStringUtils.GTASK_JSON_TYPE_GROUP);
js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity);
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("fail to generate tasklist-create jsonobject");
}
return js;
}
//获取更新操作的JSONObject
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) {
// 获取文件夹的摘要
String name = folder.getString(NoteColumns.SNIPPET);
// 设置文件夹的名称
setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX + name);
} else if (folder.getInt(NoteColumns.TYPE) == Notes.TYPE_SYSTEM) {
// 判断文件夹的ID是否为根文件夹
if (folder.getLong(NoteColumns.ID) == Notes.ID_ROOT_FOLDER)
// 设置文件夹的名称
setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_DEFAULT);
// 判断文件夹的ID是否为通话记录文件夹
else if (folder.getLong(NoteColumns.ID) == Notes.ID_CALL_RECORD_FOLDER)
// 设置文件夹的名称
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) {
// public void error(String e) {
Log.e(TAG, e.toString());
e.printStackTrace();
}
}
public JSONObject getLocalJSONFromContent() {
try {
JSONObject js = new JSONObject();
JSONObject folder = new JSONObject();
// 获取文件夹名
String folderName = getName();
// 如果文件夹名以MIUI_FOLDER_PREFFIX开头则截取文件夹名
if (getName().startsWith(GTaskStringUtils.MIUI_FOLDER_PREFFIX))
folderName = folderName.substring(GTaskStringUtils.MIUI_FOLDER_PREFFIX.length(),
folderName.length());
// 将文件夹名放入folder中
folder.put(NoteColumns.SNIPPET, folderName);
// 如果文件夹名等于FOLDER_DEFAULT或者FOLDER_CALL_NOTE则将文件夹类型设置为Notes.TYPE_SYSTEM
if (folderName.equals(GTaskStringUtils.FOLDER_DEFAULT)
|| folderName.equals(GTaskStringUtils.FOLDER_CALL_NOTE))
folder.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
// 否则将文件夹类型设置为Notes.TYPE_FOLDER
else
folder.put(NoteColumns.TYPE, Notes.TYPE_FOLDER);
// 将文件夹放入js中
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 {
// 判断本地修改列是否为0
if (c.getInt(SqlNote.LOCAL_MODIFIED_COLUMN) == 0) {
// there is no local update
// 判断远程更新列是否等于最后修改时间
if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) {
// no update both side
// 没有本地更新和远程更新,返回无操作
return SYNC_ACTION_NONE;
} else {
// apply remote to local
// 将远程更新应用到本地
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();
}
// 返回同步操作错误
return SYNC_ACTION_ERROR;
}
// 获取子任务的数量
public int getChildTaskCount() {
return mChildren.size();
}
// 添加子任务
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
// 设置前一个兄弟和父任务
task.setPriorSibling(mChildren.isEmpty() ? null : mChildren
.get(mChildren.size() - 1));
task.setParent(this);
}
}
return ret;
}
//添加中文注释后
public boolean addChildTask(Task task, int index) {
//检查索引是否有效
if (index < 0 || index > mChildren.size()) {
Log.e(TAG, "add child task: invalid index");
return false;
}
//检查任务是否已经存在
int pos = mChildren.indexOf(task);
if (task != null && pos == -1) {
//添加任务
mChildren.add(index, task);
// update the task list
Task preTask = null;
Task afterTask = null;
// 判断当前节点是否是第一个节点
if (index != 0)
preTask = mChildren.get(index - 1);
// 判断当前节点是否是最后一个节点
if (index != mChildren.size() - 1)
afterTask = mChildren.get(index + 1);
// 设置当前节点的前一个节点
task.setPriorSibling(preTask);
// 设置当前节点的后一个节点
if (afterTask != null)
afterTask.setPriorSibling(task);
}
return true;
}
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;
}
public boolean moveChildTask(Task task, int index) {
//检查index是否越界
if (index < 0 || index >= mChildren.size()) {
Log.e(TAG, "move child task: invalid index");
return false;
}
//检查task是否在mChildren中
int pos = mChildren.indexOf(task);
if (pos == -1) {
Log.e(TAG, "move child task: the task should in the list");
return false;
}
//如果task的索引和index相等则不需要移动
if (pos == index)
return true;
//从mChildren中移除task并将其添加到指定位置
return (removeChildTask(task) && addChildTask(task, index));
}
public Task findChildTaskByGid(String gid) {
for (int i = 0; i < mChildren.size(); i++) {
Task t = mChildren.get(i);
if (t.getGid().equals(gid)) {
return t;
}
}
return null;
}
//获取子任务索引
public int getChildTaskIndex(Task task) {
return mChildren.indexOf(task);
}
//根据索引获取子任务
public Task getChildTaskByIndex(int index) {
if (index < 0 || index >= mChildren.size()) {
Log.e(TAG, "getTaskByIndex: invalid index");
return null;
}
return mChildren.get(index);
}
//根据GID获取子任务
public Task getChilTaskByGid(String gid) {
for (Task task : mChildren) {
if (task.getGid().equals(gid))
return task;
}
return null;
}
public ArrayList<Task> getChildTaskList() {
return this.mChildren;
}
//设置索引
public void setIndex(int index) {
this.mIndex = index;
}
//获取索引
public int getIndex() {
return this.mIndex;
}
}