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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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// MetaData 类继承自 Task,用于处理任务的元数据信息
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package net.micode.notes.gtask.data;
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import android.database.Cursor;
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import android.util.Log;
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import net.micode.notes.tool.GTaskStringUtils;
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import org.json.JSONException;
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import org.json.JSONObject;
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public class MetaData extends Task {
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// 日志标签,用于日志记录
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private final static String TAG = MetaData.class.getSimpleName();
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// 存储相关的 Google 任务 ID
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private String mRelatedGid = null;
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/**
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* 设置元数据信息
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*
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* @param gid 相关的 Google 任务 ID
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* @param metaInfo 元数据信息,以 JSON 格式表示
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*/
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public void setMeta(String gid, JSONObject metaInfo) {
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try {
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// 将 Google 任务 ID 添加到元数据中
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metaInfo.put(GTaskStringUtils.META_HEAD_GTASK_ID, gid);
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} catch (JSONException e) {
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// 如果添加失败,记录错误日志
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Log.e(TAG, "failed to put related gid");
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}
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// 将元数据转换为字符串并设置为笔记
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setNotes(metaInfo.toString());
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// 设置元数据的名称
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setName(GTaskStringUtils.META_NOTE_NAME);
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}
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/**
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* 获取相关的 Google 任务 ID
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*
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* @return 返回 Google 任务 ID
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*/
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public String getRelatedGid() {
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return mRelatedGid;
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}
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/**
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* 判断元数据是否值得保存
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*
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* @return 如果笔记不为空,则返回 true,否则返回 false
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*/
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@Override
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public boolean isWorthSaving() {
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return getNotes() != null;
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}
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/**
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* 从远程 JSON 设置内容
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*
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* @param js 远程 JSON 对象
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*/
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@Override
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public void setContentByRemoteJSON(JSONObject js) {
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super.setContentByRemoteJSON(js);
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if (getNotes() != null) {
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try {
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// 解析笔记以获取 Google 任务 ID
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JSONObject metaInfo = new JSONObject(getNotes().trim());
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mRelatedGid = metaInfo.getString(GTaskStringUtils.META_HEAD_GTASK_ID);
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} catch (JSONException e) {
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// 如果解析失败,记录警告日志
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Log.w(TAG, "failed to get related gid");
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mRelatedGid = null;
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}
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}
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}
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/**
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* 从本地 JSON 设置内容
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* 此方法不应被调用
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*
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* @param js 本地 JSON 对象
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*/
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@Override
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public void setContentByLocalJSON(JSONObject js) {
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// 此方法不应被调用
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throw new IllegalAccessError("MetaData:setContentByLocalJSON should not be called");
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}
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/**
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* 从内容中获取本地 JSON
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* 此方法不应被调用
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*
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* @return 永远不会返回,将抛出异常
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*/
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@Override
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public JSONObject getLocalJSONFromContent() {
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throw new IllegalAccessError("MetaData:getLocalJSONFromContent should not be called");
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}
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/**
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* 基于游标获取同步操作
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* 此方法不应被调用
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*
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* @param c 游标
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* @return 永远不会返回,将抛出异常
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*/
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@Override
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public int getSyncAction(Cursor c) {
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throw new IllegalAccessError("MetaData:getSyncAction should not be called");
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}
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}
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