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/*
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* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package net.micode.notes.gtask.data;
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import android.database.Cursor;
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import android.text.TextUtils;
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import android.util.Log;
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import net.micode.notes.data.Notes;
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import net.micode.notes.data.Notes.DataColumns;
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import net.micode.notes.data.Notes.DataConstants;
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import net.micode.notes.data.Notes.NoteColumns;
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import net.micode.notes.gtask.exception.ActionFailureException;
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import net.micode.notes.tool.GTaskStringUtils;
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import org.json.JSONArray;
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import org.json.JSONException;
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import org.json.JSONObject;
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public class Task extends Node {
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private static final String TAG = Task.class.getSimpleName();
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private boolean mCompleted;
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private String mNotes;
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private JSONObject mMetaInfo;
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private Task mPriorSibling;
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private TaskList mParent;
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/**
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* 任务类，继承自BaseTask类
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*/
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public class Task extends BaseTask {
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private boolean mCompleted; // 任务是否已完成
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private String mNotes; // 任务的笔记
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private Task mPriorSibling; // 前一个任务
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private TaskList mParent; // 父任务列表
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private String mMetaInfo; // 元信息
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/**
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* 构造方法，初始化任务
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*/
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public Task() {
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super();
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mCompleted = false;
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mNotes = null;
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mPriorSibling = null;
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mParent = null;
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mMetaInfo = null;
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}
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/**
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* 生成创建任务的操作JSONObject对象
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*
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*/
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public JSONObject getCreateAction(int actionId) {
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JSONObject js = new JSONObject();
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try {
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// action_type
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js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
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GTaskStringUtils.GTASK_JSON_ACTION_TYPE_CREATE);
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// action_id
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js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId);
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// index
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js.put(GTaskStringUtils.GTASK_JSON_INDEX, mParent.getChildTaskIndex(this));
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// entity_delta
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JSONObject entity = new JSONObject();
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entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName());
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entity.put(GTaskStringUtils.GTASK_JSON_CREATOR_ID, "null");
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entity.put(GTaskStringUtils.GTASK_JSON_ENTITY_TYPE,
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GTaskStringUtils.GTASK_JSON_TYPE_TASK);
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if (getNotes() != null) {
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entity.put(GTaskStringUtils.GTASK_JSON_NOTES, getNotes());
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}
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js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity);
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// parent_id
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js.put(GTaskStringUtils.GTASK_JSON_PARENT_ID, mParent.getGid());
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// dest_parent_type
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js.put(GTaskStringUtils.GTASK_JSON_DEST_PARENT_TYPE,
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GTaskStringUtils.GTASK_JSON_TYPE_GROUP);
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// list_id
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js.put(GTaskStringUtils.GTASK_JSON_LIST_ID, mParent.getGid());
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// prior_sibling_id
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if (mPriorSibling != null) {
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js.put(GTaskStringUtils.GTASK_JSON_PRIOR_SIBLING_ID, mPriorSibling.getGid());
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}
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} catch (JSONException e) {
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Log.e(TAG, e.toString());
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e.printStackTrace();
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throw new ActionFailureException("fail to generate task-create jsonobject");
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}
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return js;
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}
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}
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public JSONObject getUpdateAction(int actionId) {
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JSONObject js = new JSONObject();
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try {
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// action_type
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js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
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GTaskStringUtils.GTASK_JSON_ACTION_TYPE_UPDATE);
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// action_id
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js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId);
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// id
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js.put(GTaskStringUtils.GTASK_JSON_ID, getGid());
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// entity_delta
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JSONObject entity = new JSONObject();
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entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName());
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if (getNotes() != null) {
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entity.put(GTaskStringUtils.GTASK_JSON_NOTES, getNotes());
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}
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entity.put(GTaskStringUtils.GTASK_JSON_DELETED, getDeleted());
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js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity);
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} catch (JSONException e) {
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Log.e(TAG, e.toString());
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e.printStackTrace();
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throw new ActionFailureException("fail to generate task-update jsonobject");
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}
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return js;
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}
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/**
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* 从远程JSON对象设置任务内容
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*/
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public void setContentByRemoteJSON(JSONObject js) {
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if (js != null) {
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try {
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// id
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if (js.has(GTaskStringUtils.GTASK_JSON_ID)) {
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setGid(js.getString(GTaskStringUtils.GTASK_JSON_ID));
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}
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// last_modified
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if (js.has(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)) {
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setLastModified(js.getLong(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED));
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}
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// name
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if (js.has(GTaskStringUtils.GTASK_JSON_NAME)) {
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setName(js.getString(GTaskStringUtils.GTASK_JSON_NAME));
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}
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// notes
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if (js.has(GTaskStringUtils.GTASK_JSON_NOTES)) {
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setNotes(js.getString(GTaskStringUtils.GTASK_JSON_NOTES));
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}
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// deleted
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if (js.has(GTaskStringUtils.GTASK_JSON_DELETED)) {
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setDeleted(js.getBoolean(GTaskStringUtils.GTASK_JSON_DELETED));
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}
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// completed
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if (js.has(GTaskStringUtils.GTASK_JSON_COMPLETED)) {
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setCompleted(js.getBoolean(GTaskStringUtils.GTASK_JSON_COMPLETED));
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}
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} catch (JSONException e) {
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Log.e(TAG, e.toString());
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e.printStackTrace();
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throw new ActionFailureException("从JSON对象获取任务内容失败");
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}
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}
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}
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/**
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* 通过本地 JSON 设置内容
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* */
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public void setContentByLocalJSON(JSONObject js) {
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// 如果 JSON 为空或缺少必要的头部信息，则无法设置内容
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if (js == null || !js.has(GTaskStringUtils.META_HEAD_NOTE)
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|| !js.has(GTaskStringUtils.META_HEAD_DATA)) {
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Log.w(TAG, "setContentByLocalJSON: nothing is avaiable");
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}
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try {
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// 获取头部笔记信息和数据数组
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JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
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JSONArray dataArray = js.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
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// 检查笔记类型是否为普通笔记
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if (note.getInt(NoteColumns.TYPE) != Notes.TYPE_NOTE) {
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Log.e(TAG, "invalid type");
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return;
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}
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// 遍历数据数组，查找笔记数据
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for (int i = 0; i < dataArray.length(); i++) {
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JSONObject data = dataArray.getJSONObject(i);
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// 如果数据的 MIME 类型为 "text/plain"，则设置为任务名称
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if (TextUtils.equals(data.getString(DataColumns.MIME_TYPE), DataConstants.NOTE)) {
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setName(data.getString(DataColumns.CONTENT));
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break;
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}
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}
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} catch (JSONException e) {
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Log.e(TAG, e.toString());
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e.printStackTrace();
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}
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}
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/**
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* 从任务内容获取本地JSON对象
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*/
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public JSONObject getLocalJSONFromContent() {
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String name = getName();
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try {
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if (mMetaInfo == null) {
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// 从Web创建的新任务
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if (name == null) {
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Log.w(TAG, "the note seems to be an empty one");
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return null;
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}
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JSONObject js = new JSONObject();
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JSONObject note = new JSONObject();
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JSONArray dataArray = new JSONArray();
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JSONObject data = new JSONObject();
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data.put(DataColumns.CONTENT, name);
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dataArray.put(data);
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js.put(GTaskStringUtils.META_HEAD_DATA, dataArray);
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note.put(NoteColumns.TYPE, Notes.TYPE_NOTE);
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js.put(GTaskStringUtils.META_HEAD_NOTE, note);
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return js;
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} else {
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// 同步的任务
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JSONObject note = mMetaInfo.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
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JSONArray dataArray = mMetaInfo.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
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for (int i = 0; i < dataArray.length(); i++) {
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JSONObject data = dataArray.getJSONObject(i);
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if (TextUtils.equals(data.getString(DataColumns.MIME_TYPE), DataConstants.NOTE)) {
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data.put(DataColumns.CONTENT, getName());
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break;
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}
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}
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note.put(NoteColumns.TYPE, Notes.TYPE_NOTE);
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return mMetaInfo;
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}
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} catch (JSONException e) {
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Log.e(TAG, e.toString());
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e.printStackTrace();
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return null;
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}
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}
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/**
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* 设置笔记元信息。
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*/
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public void setMetaInfo(MetaData metaData) {
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if (metaData != null && metaData.getNotes() != null) {
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try {
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mMetaInfo = new JSONObject(metaData.getNotes());
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} catch (JSONException e) {
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Log.w(TAG, e.toString());
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mMetaInfo = null;
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}
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}
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}
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/**
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* 获取同步操作类型。
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*/
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public int getSyncAction(Cursor c) {
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try {
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JSONObject noteInfo = null;
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if (mMetaInfo != null && mMetaInfo.has(GTaskStringUtils.META_HEAD_NOTE)) {
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noteInfo = mMetaInfo.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
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}
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if (noteInfo == null) {
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Log.w(TAG, "it seems that note meta has been deleted");
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return SYNC_ACTION_UPDATE_REMOTE;
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}
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if (!noteInfo.has(NoteColumns.ID)) {
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Log.w(TAG, "remote note id seems to be deleted");
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return SYNC_ACTION_UPDATE_LOCAL;
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}
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// validate the note id now
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if (c.getLong(SqlNote.ID_COLUMN) != noteInfo.getLong(NoteColumns.ID)) {
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Log.w(TAG, "note id doesn't match");
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return SYNC_ACTION_UPDATE_LOCAL;
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}
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if (c.getInt(SqlNote.LOCAL_MODIFIED_COLUMN) == 0) {
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// there is no local update
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if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) {
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// no update both side
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return SYNC_ACTION_NONE;
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} else {
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// apply remote to local
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return SYNC_ACTION_UPDATE_LOCAL;
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}
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} else {
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// validate gtask id
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if (!c.getString(SqlNote.GTASK_ID_COLUMN).equals(getGid())) {
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Log.e(TAG, "gtask id doesn't match");
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return SYNC_ACTION_ERROR;
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}
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if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) {
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// local modification only
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return SYNC_ACTION_UPDATE_REMOTE;
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} else {
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return SYNC_ACTION_UPDATE_CONFLICT;
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}
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}
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} catch (Exception e) {
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Log.e(TAG, e.toString());
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e.printStackTrace();
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}
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return SYNC_ACTION_ERROR;
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}
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/**
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* 任务类，表示一项任务
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*/
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public class Task {
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private String mName; // 任务名
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private boolean mCompleted; // 是否完成
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private String mNotes; // 任务笔记
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private Task mPriorSibling; // 前一个同级任务
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private TaskList mParent; // 父任务列表
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private JSONObject mMetaInfo; // 元数据
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/**
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* 判断任务是否值得保存，有元数据、任务名或任务笔记任一不为空时认为值得保存
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*/
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public boolean isWorthSaving() {
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return mMetaInfo != null || (getName() != null && getName().trim().length() > 0)
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|| (getNotes() != null && getNotes().trim().length() > 0);
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}
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/**
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* 设置任务是否完成
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*/
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public void setCompleted(boolean completed) {
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this.mCompleted = completed;
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}
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/**
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* 设置任务笔记
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*/
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public void setNotes(String notes) {
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this.mNotes = notes;
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}
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/**
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* 设置前一个同级任务
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*/
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public void setPriorSibling(Task priorSibling) {
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this.mPriorSibling = priorSibling;
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}
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/**
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* 设置父任务列表
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*/
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public void setParent(TaskList parent) {
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this.mParent = parent;
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}
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/**
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* 获取任务名
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*/
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public String getName() {
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return this.mName;
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}
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/**
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* 设置任务名
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*/
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public void setName(String name) {
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this.mName = name;
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}
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/**
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* 获取任务是否完成
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*/
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public boolean getCompleted() {
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return this.mCompleted;
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}
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/**
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* 获取任务笔记
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*/
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public String getNotes() {
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return this.mNotes;
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}
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/**
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* 获取前一个同级任务
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*/
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public Task getPriorSibling() {
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return this.mPriorSibling;
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}
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/**
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* 获取父任务列表
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*/
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public TaskList getParent() {
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return this.mParent;
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}
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/**
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* 获取任务的元数据
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*/
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public JSONObject getMetaInfo() {
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return this.mMetaInfo;
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}
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/**
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* 设置任务的元数据
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*/
|
|
|
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;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
}
|
