|  |  |  | @ -0,0 +1,395 @@ | 
			
		
	
		
			
				
					|  |  |  |  | /* | 
			
		
	
		
			
				
					|  |  |  |  |  * 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; | 
			
		
	
		
			
				
					|  |  |  |  | 
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					|  |  |  |  | import android.database.Cursor; | 
			
		
	
		
			
				
					|  |  |  |  | import android.text.TextUtils; | 
			
		
	
		
			
				
					|  |  |  |  | import android.util.Log; | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  | import net.micode.notes.data.Notes; | 
			
		
	
		
			
				
					|  |  |  |  | import net.micode.notes.data.Notes.DataColumns; | 
			
		
	
		
			
				
					|  |  |  |  | import net.micode.notes.data.Notes.DataConstants; | 
			
		
	
		
			
				
					|  |  |  |  | import net.micode.notes.data.Notes.NoteColumns; | 
			
		
	
		
			
				
					|  |  |  |  | import net.micode.notes.gtask.exception.ActionFailureException; | 
			
		
	
		
			
				
					|  |  |  |  | import net.micode.notes.tool.GTaskStringUtils; | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  | import org.json.JSONArray; | 
			
		
	
		
			
				
					|  |  |  |  | import org.json.JSONException; | 
			
		
	
		
			
				
					|  |  |  |  | import org.json.JSONObject; | 
			
		
	
		
			
				
					|  |  |  |  | 
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					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  | public class Task extends Node { | 
			
		
	
		
			
				
					|  |  |  |  |     private static final String TAG = Task.class.getSimpleName(); | 
			
		
	
		
			
				
					|  |  |  |  | 
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					|  |  |  |  |     private boolean mCompleted;//是否完成
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					|  |  |  |  |     private String mNotes;//备注信息
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					|  |  |  |  | 
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					|  |  |  |  |     private JSONObject mMetaInfo;//将在实例中存储数据的类型
 | 
			
		
	
		
			
				
					|  |  |  |  | 
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					|  |  |  |  |     private Task mPriorSibling;//对应的优先兄弟Task的指针
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					|  |  |  |  | 
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					|  |  |  |  |     private TaskList mParent;//所在的任务列表的指针
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					|  |  |  |  |     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; | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
					|  |  |  |  | //获取创建操作的JSON对象
 | 
			
		
	
		
			
				
					|  |  |  |  |     public JSONObject getCreateAction(int actionId) { | 
			
		
	
		
			
				
					|  |  |  |  |         JSONObject js = new JSONObject(); | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |         try { | 
			
		
	
		
			
				
					|  |  |  |  |             // action_type
 | 
			
		
	
		
			
				
					|  |  |  |  |             // 设置action类型为创建
 | 
			
		
	
		
			
				
					|  |  |  |  |             js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, | 
			
		
	
		
			
				
					|  |  |  |  |                     GTaskStringUtils.GTASK_JSON_ACTION_TYPE_CREATE); | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |             // action_id
 | 
			
		
	
		
			
				
					|  |  |  |  |             // 设置action的ID
 | 
			
		
	
		
			
				
					|  |  |  |  |             js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId); | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |             // index
 | 
			
		
	
		
			
				
					|  |  |  |  |             // 设置任务在父任务中的索引位置
 | 
			
		
	
		
			
				
					|  |  |  |  |             js.put(GTaskStringUtils.GTASK_JSON_INDEX, mParent.getChildTaskIndex(this)); | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |             // entity_delta
 | 
			
		
	
		
			
				
					|  |  |  |  |             // 创建一个实体对象,用于存储任务的创建信息
 | 
			
		
	
		
			
				
					|  |  |  |  |             JSONObject entity = new JSONObject(); | 
			
		
	
		
			
				
					|  |  |  |  |             // 设置任务名称
 | 
			
		
	
		
			
				
					|  |  |  |  |             entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName()); | 
			
		
	
		
			
				
					|  |  |  |  |             // 设置任务创建者ID
 | 
			
		
	
		
			
				
					|  |  |  |  |             entity.put(GTaskStringUtils.GTASK_JSON_CREATOR_ID, "null"); | 
			
		
	
		
			
				
					|  |  |  |  |              // 设置实体类型为任务
 | 
			
		
	
		
			
				
					|  |  |  |  |             entity.put(GTaskStringUtils.GTASK_JSON_ENTITY_TYPE, | 
			
		
	
		
			
				
					|  |  |  |  |                     GTaskStringUtils.GTASK_JSON_TYPE_TASK); | 
			
		
	
		
			
				
					|  |  |  |  |             if (getNotes() != null) { | 
			
		
	
		
			
				
					|  |  |  |  |                 // 设置任务备注
 | 
			
		
	
		
			
				
					|  |  |  |  |                 entity.put(GTaskStringUtils.GTASK_JSON_NOTES, getNotes()); | 
			
		
	
		
			
				
					|  |  |  |  |             } | 
			
		
	
		
			
				
					|  |  |  |  |             // 将实体对象添加到JSON对象中
 | 
			
		
	
		
			
				
					|  |  |  |  |             js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity); | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |             // parent_id
 | 
			
		
	
		
			
				
					|  |  |  |  |             // 设置父任务的ID
 | 
			
		
	
		
			
				
					|  |  |  |  |             js.put(GTaskStringUtils.GTASK_JSON_PARENT_ID, mParent.getGid()); | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |             // dest_parent_type
 | 
			
		
	
		
			
				
					|  |  |  |  |             // 设置目标父类型的值
 | 
			
		
	
		
			
				
					|  |  |  |  |             js.put(GTaskStringUtils.GTASK_JSON_DEST_PARENT_TYPE, | 
			
		
	
		
			
				
					|  |  |  |  |                     GTaskStringUtils.GTASK_JSON_TYPE_GROUP); | 
			
		
	
		
			
				
					|  |  |  |  | 
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					|  |  |  |  |             // list_id
 | 
			
		
	
		
			
				
					|  |  |  |  |             // 设置列表ID
 | 
			
		
	
		
			
				
					|  |  |  |  |             js.put(GTaskStringUtils.GTASK_JSON_LIST_ID, mParent.getGid()); | 
			
		
	
		
			
				
					|  |  |  |  | 
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					|  |  |  |  |             // prior_sibling_id
 | 
			
		
	
		
			
				
					|  |  |  |  |             // 如果存在前一个兄弟任务,则设置其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"); | 
			
		
	
		
			
				
					|  |  |  |  |         } | 
			
		
	
		
			
				
					|  |  |  |  | // 返回包含创建信息的JSON对象
 | 
			
		
	
		
			
				
					|  |  |  |  |         return js; | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
					|  |  |  |  | 
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					|  |  |  |  |     public JSONObject getUpdateAction(int actionId) { | 
			
		
	
		
			
				
					|  |  |  |  |         JSONObject js = new JSONObject(); | 
			
		
	
		
			
				
					|  |  |  |  | 
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					|  |  |  |  |         try { | 
			
		
	
		
			
				
					|  |  |  |  |             // action_type
 | 
			
		
	
		
			
				
					|  |  |  |  |             // 设置action类型为更新
 | 
			
		
	
		
			
				
					|  |  |  |  |             js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, | 
			
		
	
		
			
				
					|  |  |  |  |                     GTaskStringUtils.GTASK_JSON_ACTION_TYPE_UPDATE); | 
			
		
	
		
			
				
					|  |  |  |  | 
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					|  |  |  |  |             // action_id
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					|  |  |  |  |             // 设置action的ID
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					|  |  |  |  |             js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId); | 
			
		
	
		
			
				
					|  |  |  |  | 
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					|  |  |  |  |             // id
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					|  |  |  |  |             // 设置任务的ID
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					|  |  |  |  |             js.put(GTaskStringUtils.GTASK_JSON_ID, getGid()); | 
			
		
	
		
			
				
					|  |  |  |  | 
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					|  |  |  |  |             // entity_delta
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					|  |  |  |  |             // 创建一个实体对象,用于存储任务的更新信息
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					|  |  |  |  |             JSONObject entity = new JSONObject(); | 
			
		
	
		
			
				
					|  |  |  |  |             // 设置任务名称
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					|  |  |  |  |             entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName()); | 
			
		
	
		
			
				
					|  |  |  |  |             if (getNotes() != null) { | 
			
		
	
		
			
				
					|  |  |  |  |                 // 设置任务备注
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					|  |  |  |  |                 entity.put(GTaskStringUtils.GTASK_JSON_NOTES, getNotes()); | 
			
		
	
		
			
				
					|  |  |  |  |             } | 
			
		
	
		
			
				
					|  |  |  |  |              // 设置任务是否已删除
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					|  |  |  |  |             entity.put(GTaskStringUtils.GTASK_JSON_DELETED, getDeleted()); | 
			
		
	
		
			
				
					|  |  |  |  |             // 将实体对象添加到JSON对象中
 | 
			
		
	
		
			
				
					|  |  |  |  |             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"); | 
			
		
	
		
			
				
					|  |  |  |  |         } | 
			
		
	
		
			
				
					|  |  |  |  | // 返回包含更新信息的JSON对象
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					|  |  |  |  |         return js; | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
					|  |  |  |  | 
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					|  |  |  |  |     public void setContentByRemoteJSON(JSONObject js) { | 
			
		
	
		
			
				
					|  |  |  |  |         if (js != null) { | 
			
		
	
		
			
				
					|  |  |  |  |             try { | 
			
		
	
		
			
				
					|  |  |  |  |                 // id
 | 
			
		
	
		
			
				
					|  |  |  |  |                 if (js.has(GTaskStringUtils.GTASK_JSON_ID)) { | 
			
		
	
		
			
				
					|  |  |  |  |                     setGid(js.getString(GTaskStringUtils.GTASK_JSON_ID)); | 
			
		
	
		
			
				
					|  |  |  |  |                 }// 设置任务的ID
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					|  |  |  |  | 
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					|  |  |  |  |                 // last_modified
 | 
			
		
	
		
			
				
					|  |  |  |  |                 if (js.has(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)) { | 
			
		
	
		
			
				
					|  |  |  |  |                     setLastModified(js.getLong(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)); | 
			
		
	
		
			
				
					|  |  |  |  |                 }// 设置任务的最后修改时间
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					|  |  |  |  | 
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					|  |  |  |  |                 // name
 | 
			
		
	
		
			
				
					|  |  |  |  |                 if (js.has(GTaskStringUtils.GTASK_JSON_NAME)) { | 
			
		
	
		
			
				
					|  |  |  |  |                     setName(js.getString(GTaskStringUtils.GTASK_JSON_NAME)); | 
			
		
	
		
			
				
					|  |  |  |  |                 }// 设置任务的名称
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					|  |  |  |  | 
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					|  |  |  |  |                 // notes
 | 
			
		
	
		
			
				
					|  |  |  |  |                 if (js.has(GTaskStringUtils.GTASK_JSON_NOTES)) { | 
			
		
	
		
			
				
					|  |  |  |  |                     setNotes(js.getString(GTaskStringUtils.GTASK_JSON_NOTES)); | 
			
		
	
		
			
				
					|  |  |  |  |                 }// 设置任务的备注
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					|  |  |  |  | 
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					|  |  |  |  |                 // deleted
 | 
			
		
	
		
			
				
					|  |  |  |  |                 if (js.has(GTaskStringUtils.GTASK_JSON_DELETED)) { | 
			
		
	
		
			
				
					|  |  |  |  |                     setDeleted(js.getBoolean(GTaskStringUtils.GTASK_JSON_DELETED)); | 
			
		
	
		
			
				
					|  |  |  |  |                 }// 设置任务是否已删除
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					|  |  |  |  | 
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					|  |  |  |  |                 // completed
 | 
			
		
	
		
			
				
					|  |  |  |  |                 if (js.has(GTaskStringUtils.GTASK_JSON_COMPLETED)) { | 
			
		
	
		
			
				
					|  |  |  |  |                     setCompleted(js.getBoolean(GTaskStringUtils.GTASK_JSON_COMPLETED)); | 
			
		
	
		
			
				
					|  |  |  |  |                 }// 设置任务是否已完成
 | 
			
		
	
		
			
				
					|  |  |  |  |             } catch (JSONException e) { | 
			
		
	
		
			
				
					|  |  |  |  |                 Log.e(TAG, e.toString()); | 
			
		
	
		
			
				
					|  |  |  |  |                 e.printStackTrace(); | 
			
		
	
		
			
				
					|  |  |  |  |                 throw new ActionFailureException("fail to get task content from jsonobject"); | 
			
		
	
		
			
				
					|  |  |  |  |             }// 抛出异常,表示从JSON对象获取任务内容失败
 | 
			
		
	
		
			
				
					|  |  |  |  |         } | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |     public void setContentByLocalJSON(JSONObject js) { | 
			
		
	
		
			
				
					|  |  |  |  |         // 检查传入的 JSON 对象是否为空,或者是否包含必要的键值
 | 
			
		
	
		
			
				
					|  |  |  |  |         if (js == null || !js.has(GTaskStringUtils.META_HEAD_NOTE) | 
			
		
	
		
			
				
					|  |  |  |  |                 || !js.has(GTaskStringUtils.META_HEAD_DATA)) { | 
			
		
	
		
			
				
					|  |  |  |  |             Log.w(TAG, "setContentByLocalJSON: nothing is avaiable"); | 
			
		
	
		
			
				
					|  |  |  |  |         } | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |         try { | 
			
		
	
		
			
				
					|  |  |  |  |             // 获取 note 和 dataArray 对象
 | 
			
		
	
		
			
				
					|  |  |  |  |             JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE); | 
			
		
	
		
			
				
					|  |  |  |  |             JSONArray dataArray = js.getJSONArray(GTaskStringUtils.META_HEAD_DATA); | 
			
		
	
		
			
				
					|  |  |  |  |             // 检查 note 的类型是否为 Notes.TYPE_NOTE
 | 
			
		
	
		
			
				
					|  |  |  |  |             if (note.getInt(NoteColumns.TYPE) != Notes.TYPE_NOTE) { | 
			
		
	
		
			
				
					|  |  |  |  |                 Log.e(TAG, "invalid type"); | 
			
		
	
		
			
				
					|  |  |  |  |                 return; | 
			
		
	
		
			
				
					|  |  |  |  |             } | 
			
		
	
		
			
				
					|  |  |  |  |             // 遍历 dataArray,查找 MIME_TYPE 为 DataConstants.NOTE 的数据对象
 | 
			
		
	
		
			
				
					|  |  |  |  |             for (int i = 0; i < dataArray.length(); i++) { | 
			
		
	
		
			
				
					|  |  |  |  |                 JSONObject data = dataArray.getJSONObject(i); | 
			
		
	
		
			
				
					|  |  |  |  |                 if (TextUtils.equals(data.getString(DataColumns.MIME_TYPE), DataConstants.NOTE)) { | 
			
		
	
		
			
				
					|  |  |  |  |                     // 设置名称为找到的数据对象的 CONTENT 字段的值
 | 
			
		
	
		
			
				
					|  |  |  |  |                     setName(data.getString(DataColumns.CONTENT)); | 
			
		
	
		
			
				
					|  |  |  |  |                     break; | 
			
		
	
		
			
				
					|  |  |  |  |                 } | 
			
		
	
		
			
				
					|  |  |  |  |             } | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |         } catch (JSONException e) { | 
			
		
	
		
			
				
					|  |  |  |  |             Log.e(TAG, e.toString()); | 
			
		
	
		
			
				
					|  |  |  |  |             e.printStackTrace(); | 
			
		
	
		
			
				
					|  |  |  |  |         } | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |     public JSONObject getLocalJSONFromContent() { | 
			
		
	
		
			
				
					|  |  |  |  |         // 获取任务名称
 | 
			
		
	
		
			
				
					|  |  |  |  |         String name = getName(); | 
			
		
	
		
			
				
					|  |  |  |  |         try { | 
			
		
	
		
			
				
					|  |  |  |  |              // 如果元信息为空,说明这是一个从网页创建的新任务
 | 
			
		
	
		
			
				
					|  |  |  |  |             if (mMetaInfo == null) { | 
			
		
	
		
			
				
					|  |  |  |  |                 // new task created from web
 | 
			
		
	
		
			
				
					|  |  |  |  |                 // 如果任务名称为空,记录警告日志并返回null
 | 
			
		
	
		
			
				
					|  |  |  |  |                 if (name == null) { | 
			
		
	
		
			
				
					|  |  |  |  |                     Log.w(TAG, "the note seems to be an empty one"); | 
			
		
	
		
			
				
					|  |  |  |  |                     return null; | 
			
		
	
		
			
				
					|  |  |  |  |                 } | 
			
		
	
		
			
				
					|  |  |  |  |                 // 创建一个新的JSON对象用于存储任务信息
 | 
			
		
	
		
			
				
					|  |  |  |  |                 JSONObject js = new JSONObject(); | 
			
		
	
		
			
				
					|  |  |  |  |                 JSONObject note = new JSONObject(); | 
			
		
	
		
			
				
					|  |  |  |  |                 JSONArray dataArray = new JSONArray(); | 
			
		
	
		
			
				
					|  |  |  |  |                 JSONObject data = new JSONObject(); | 
			
		
	
		
			
				
					|  |  |  |  |                 // 将任务名称放入data对象的CONTENT字段中
 | 
			
		
	
		
			
				
					|  |  |  |  |                 data.put(DataColumns.CONTENT, name); | 
			
		
	
		
			
				
					|  |  |  |  |                 // 将data对象添加到dataArray中
 | 
			
		
	
		
			
				
					|  |  |  |  |                 dataArray.put(data); | 
			
		
	
		
			
				
					|  |  |  |  |                 // 将dataArray放入js对象的META_HEAD_DATA字段中
 | 
			
		
	
		
			
				
					|  |  |  |  |                 js.put(GTaskStringUtils.META_HEAD_DATA, dataArray); | 
			
		
	
		
			
				
					|  |  |  |  |                 // 设置note对象的TYPE字段为Notes.TYPE_NOTE
 | 
			
		
	
		
			
				
					|  |  |  |  |                 note.put(NoteColumns.TYPE, Notes.TYPE_NOTE); | 
			
		
	
		
			
				
					|  |  |  |  |                 // 将note对象放入js对象的META_HEAD_NOTE字段中
 | 
			
		
	
		
			
				
					|  |  |  |  |                 js.put(GTaskStringUtils.META_HEAD_NOTE, note); | 
			
		
	
		
			
				
					|  |  |  |  |                 // 返回包含任务信息的js对象
 | 
			
		
	
		
			
				
					|  |  |  |  |                 return js; | 
			
		
	
		
			
				
					|  |  |  |  |             } else { | 
			
		
	
		
			
				
					|  |  |  |  |                 // synced task
 | 
			
		
	
		
			
				
					|  |  |  |  |                 // 如果元信息不为空,说明这是一个已同步的任务
 | 
			
		
	
		
			
				
					|  |  |  |  |             // 获取note对象和dataArray对象
 | 
			
		
	
		
			
				
					|  |  |  |  |                 JSONObject note = mMetaInfo.getJSONObject(GTaskStringUtils.META_HEAD_NOTE); | 
			
		
	
		
			
				
					|  |  |  |  |                 JSONArray dataArray = mMetaInfo.getJSONArray(GTaskStringUtils.META_HEAD_DATA); | 
			
		
	
		
			
				
					|  |  |  |  |             // 遍历dataArray,找到类型为DataConstants.NOTE的数据对象
 | 
			
		
	
		
			
				
					|  |  |  |  |                 for (int i = 0; i < dataArray.length(); i++) { | 
			
		
	
		
			
				
					|  |  |  |  |                     JSONObject data = dataArray.getJSONObject(i); | 
			
		
	
		
			
				
					|  |  |  |  |                     if (TextUtils.equals(data.getString(DataColumns.MIME_TYPE), DataConstants.NOTE)) { | 
			
		
	
		
			
				
					|  |  |  |  |                         // 将任务名称放入找到的data对象的CONTENT字段中
 | 
			
		
	
		
			
				
					|  |  |  |  |                         data.put(DataColumns.CONTENT, getName()); | 
			
		
	
		
			
				
					|  |  |  |  |                         break; | 
			
		
	
		
			
				
					|  |  |  |  |                     } | 
			
		
	
		
			
				
					|  |  |  |  |                 } | 
			
		
	
		
			
				
					|  |  |  |  |             // 设置note对象的TYPE字段为Notes.TYPE_NOTE
 | 
			
		
	
		
			
				
					|  |  |  |  |                 note.put(NoteColumns.TYPE, Notes.TYPE_NOTE); | 
			
		
	
		
			
				
					|  |  |  |  |                 // 返回包含任务信息的mMetaInfo对象
 | 
			
		
	
		
			
				
					|  |  |  |  |                 return mMetaInfo; | 
			
		
	
		
			
				
					|  |  |  |  |             } | 
			
		
	
		
			
				
					|  |  |  |  |         } catch (JSONException e) { | 
			
		
	
		
			
				
					|  |  |  |  |             // 如果发生异常,记录错误日志并返回null
 | 
			
		
	
		
			
				
					|  |  |  |  |             Log.e(TAG, e.toString()); | 
			
		
	
		
			
				
					|  |  |  |  |             e.printStackTrace(); | 
			
		
	
		
			
				
					|  |  |  |  |             return null; | 
			
		
	
		
			
				
					|  |  |  |  |         } | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
					|  |  |  |  | // 设置元信息,将MetaData对象中的notes转换为JSONObject并存储到mMetaInfo中
 | 
			
		
	
		
			
				
					|  |  |  |  |     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; | 
			
		
	
		
			
				
					|  |  |  |  |             } | 
			
		
	
		
			
				
					|  |  |  |  |         } | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
					|  |  |  |  | // 根据Cursor对象获取同步操作类型
 | 
			
		
	
		
			
				
					|  |  |  |  |     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
 | 
			
		
	
		
			
				
					|  |  |  |  |             // 验证note id是否匹配
 | 
			
		
	
		
			
				
					|  |  |  |  |             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
 | 
			
		
	
		
			
				
					|  |  |  |  |                 // 没有本地更新
 | 
			
		
	
		
			
				
					|  |  |  |  |                 if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) { | 
			
		
	
		
			
				
					|  |  |  |  |                     // no update both side
 | 
			
		
	
		
			
				
					|  |  |  |  |                     // 两边都没有更新
 | 
			
		
	
		
			
				
					|  |  |  |  |                     return SYNC_ACTION_NONE; | 
			
		
	
		
			
				
					|  |  |  |  |                 } else { | 
			
		
	
		
			
				
					|  |  |  |  |                     // apply remote to local
 | 
			
		
	
		
			
				
					|  |  |  |  |                     // 应用远程到本地
 | 
			
		
	
		
			
				
					|  |  |  |  |                     return SYNC_ACTION_UPDATE_LOCAL; | 
			
		
	
		
			
				
					|  |  |  |  |                 } | 
			
		
	
		
			
				
					|  |  |  |  |             } else { | 
			
		
	
		
			
				
					|  |  |  |  |                 // validate gtask id
 | 
			
		
	
		
			
				
					|  |  |  |  |                 // 验证gtask id是否匹配
 | 
			
		
	
		
			
				
					|  |  |  |  |                 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
 | 
			
		
	
		
			
				
					|  |  |  |  |                     // 只有本地修改
 | 
			
		
	
		
			
				
					|  |  |  |  |                     return SYNC_ACTION_UPDATE_REMOTE; | 
			
		
	
		
			
				
					|  |  |  |  |                 } else { | 
			
		
	
		
			
				
					|  |  |  |  |                     return SYNC_ACTION_UPDATE_CONFLICT; | 
			
		
	
		
			
				
					|  |  |  |  |                 } | 
			
		
	
		
			
				
					|  |  |  |  |             } | 
			
		
	
		
			
				
					|  |  |  |  |         } catch (Exception e) { | 
			
		
	
		
			
				
					|  |  |  |  |             Log.e(TAG, e.toString()); | 
			
		
	
		
			
				
					|  |  |  |  |             e.printStackTrace(); | 
			
		
	
		
			
				
					|  |  |  |  |         } | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |         return SYNC_ACTION_ERROR; | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
					|  |  |  |  | // 判断任务是否有价值保存
 | 
			
		
	
		
			
				
					|  |  |  |  |     public boolean isWorthSaving() { | 
			
		
	
		
			
				
					|  |  |  |  |         return mMetaInfo != null || (getName() != null && getName().trim().length() > 0) | 
			
		
	
		
			
				
					|  |  |  |  |                 || (getNotes() != null && getNotes().trim().length() > 0); | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
					|  |  |  |  | // 设置任务完成状态
 | 
			
		
	
		
			
				
					|  |  |  |  |     public void setCompleted(boolean completed) { | 
			
		
	
		
			
				
					|  |  |  |  |         this.mCompleted = completed; | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
					|  |  |  |  | // 设置任务备注
 | 
			
		
	
		
			
				
					|  |  |  |  |     public void setNotes(String notes) { | 
			
		
	
		
			
				
					|  |  |  |  |         this.mNotes = notes; | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
					|  |  |  |  | // 设置前一个兄弟任务
 | 
			
		
	
		
			
				
					|  |  |  |  |     public void setPriorSibling(Task priorSibling) { | 
			
		
	
		
			
				
					|  |  |  |  |         this.mPriorSibling = priorSibling; | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
					|  |  |  |  | // 设置任务所属的任务列表
 | 
			
		
	
		
			
				
					|  |  |  |  |     public void setParent(TaskList parent) { | 
			
		
	
		
			
				
					|  |  |  |  |         this.mParent = parent; | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
					|  |  |  |  |  // 获取任务完成状态
 | 
			
		
	
		
			
				
					|  |  |  |  |     public boolean getCompleted() { | 
			
		
	
		
			
				
					|  |  |  |  |         return this.mCompleted; | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
					|  |  |  |  | // 获取任务备注
 | 
			
		
	
		
			
				
					|  |  |  |  |     public String getNotes() { | 
			
		
	
		
			
				
					|  |  |  |  |         return this.mNotes; | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
					|  |  |  |  |  // 获取前一个兄弟任务
 | 
			
		
	
		
			
				
					|  |  |  |  |     public Task getPriorSibling() { | 
			
		
	
		
			
				
					|  |  |  |  |         return this.mPriorSibling; | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
					|  |  |  |  |  // 获取任务所属的任务列表
 | 
			
		
	
		
			
				
					|  |  |  |  |     public TaskList getParent() { | 
			
		
	
		
			
				
					|  |  |  |  |         return this.mParent; | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  | } |