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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; // 任务完成状态
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private String mNotes; // 任务备注
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private JSONObject mMetaInfo; // 元数据（存储本地笔记与GTask的映射）
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private Task mPriorSibling; // 前一个兄弟任务（用于排序）
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private TaskList mParent; // 所属任务列表
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// 构造函数：初始化任务属性
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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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// 生成创建任务的JSON请求
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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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js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, "create"); // 动作类型
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js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId); // 动作ID
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js.put(GTaskStringUtils.GTASK_JSON_INDEX, mParent.getChildTaskIndex(this)); // 排序索引
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// 任务实体数据
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JSONObject entity = new JSONObject();
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entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName()); // 任务名称
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entity.put(GTaskStringUtils.GTASK_JSON_ENTITY_TYPE, "task"); // 实体类型
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if (getNotes() != null) entity.put(GTaskStringUtils.GTASK_JSON_NOTES, getNotes());
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js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity);
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// 父任务列表信息
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js.put(GTaskStringUtils.GTASK_JSON_PARENT_ID, mParent.getGid());
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js.put(GTaskStringUtils.GTASK_JSON_LIST_ID, mParent.getGid());
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// 前一个兄弟任务ID（用于排序）
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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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throw new ActionFailureException("生成创建任务JSON失败");
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}
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return js;
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}
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// 生成更新任务的JSON请求
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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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js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, "update"); // 动作类型
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js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId); // 动作ID
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js.put(GTaskStringUtils.GTASK_JSON_ID, getGid()); // 任务ID
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// 任务实体数据（仅更新变更字段）
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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) entity.put(GTaskStringUtils.GTASK_JSON_NOTES, getNotes());
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entity.put(GTaskStringUtils.GTASK_JSON_DELETED, getDeleted()); // 删除状态
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js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity);
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} catch (JSONException e) {
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throw new ActionFailureException("生成更新任务JSON失败");
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}
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return js;
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}
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// 从远程JSON（GTask数据）设置任务内容
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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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setGid(js.getString(GTaskStringUtils.GTASK_JSON_ID)); // 设置GTask ID
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setLastModified(js.getLong(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)); // 最后修改时间
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setName(js.getString(GTaskStringUtils.GTASK_JSON_NAME)); // 任务名称
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setNotes(js.getString(GTaskStringUtils.GTASK_JSON_NOTES)); // 任务备注
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setDeleted(js.getBoolean(GTaskStringUtils.GTASK_JSON_DELETED)); // 删除状态
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setCompleted(js.getBoolean(GTaskStringUtils.GTASK_JSON_COMPLETED)); // 完成状态
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} catch (JSONException e) {
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throw new ActionFailureException("解析远程JSON失败");
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}
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}
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}
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// 从本地JSON（笔记数据）设置任务内容
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public void setContentByLocalJSON(JSONObject js) {
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if (js == null || !js.has(GTaskStringUtils.META_HEAD_NOTE)) return;
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try {
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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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// 仅处理普通笔记类型
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if (note.getInt(NoteColumns.TYPE) != Notes.TYPE_NOTE) return;
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// 从数据列表中获取笔记内容作为任务名称
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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 (data.getString(DataColumns.MIME_TYPE).equals(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, "解析本地JSON失败", e);
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}
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}
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// 从任务内容生成本地JSON（用于存储到本地数据库）
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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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// 新建任务（无元数据）
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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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// 已同步任务（更新元数据）
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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 (data.getString(DataColumns.MIME_TYPE).equals(DataConstants.NOTE)) {
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data.put(DataColumns.CONTENT, name);
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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, "生成本地JSON失败", e);
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return null;
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}
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}
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// 设置元数据（本地笔记与GTask的映射）
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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, "解析元数据失败", e);
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mMetaInfo = null;
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}
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}
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}
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// 判断当前同步动作类型
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public int getSyncAction(Cursor c) {
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try {
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if (mMetaInfo == null || !mMetaInfo.has(GTaskStringUtils.META_HEAD_NOTE)) {
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return SYNC_ACTION_UPDATE_REMOTE; // 元数据不存在，需从远程更新
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}
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JSONObject noteInfo = mMetaInfo.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
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// 验证笔记ID
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if (c.getLong(SqlNote.ID_COLUMN) != noteInfo.getLong(NoteColumns.ID)) {
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return SYNC_ACTION_UPDATE_LOCAL; // ID不匹配，需更新本地
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}
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// 判断本地修改状态
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if (c.getInt(SqlNote.LOCAL_MODIFIED_COLUMN) == 0) {
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// 本地未修改
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if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) {
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return SYNC_ACTION_NONE; // 无变更
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} else {
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return SYNC_ACTION_UPDATE_LOCAL; // 远程有更新，需同步到本地
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}
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} else {
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// 本地已修改
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if (!c.getString(SqlNote.GTASK_ID_COLUMN).equals(getGid())) {
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return SYNC_ACTION_ERROR; // GTask ID不匹配，错误
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}
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if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) {
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return SYNC_ACTION_UPDATE_REMOTE; // 本地修改，需同步到远程
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} else {
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return SYNC_ACTION_UPDATE_CONFLICT; // 本地与远程都有修改，冲突
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}
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}
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} catch (Exception e) {
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Log.e(TAG, "获取同步动作失败", e);
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}
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return SYNC_ACTION_ERROR;
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}
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// 判断任务是否值得保存
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public boolean isWorthSaving() {
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return mMetaInfo != null ||
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(getName() != null && getName().trim().length() > 0) ||
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(getNotes() != null && getNotes().trim().length() > 0);
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}
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// Getter和Setter方法
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public void setCompleted(boolean completed) { this.mCompleted = completed; }
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public void setNotes(String notes) { this.mNotes = notes; }
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public void setPriorSibling(Task priorSibling) { this.mPriorSibling = priorSibling; }
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public void setParent(TaskList parent) { this.mParent = parent; }
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public boolean getCompleted() { return mCompleted; }
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public String getNotes() { return mNotes; }
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public Task getPriorSibling() { return mPriorSibling; }
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public TaskList getParent() { return mParent; }
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} |
