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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.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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//元数据类，继承自Task类，用于处理与Google Task相关的元数据信息
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public class MetaData extends Task {// 日志标签
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private final static String TAG = MetaData.class.getSimpleName();// 关联的Google Task ID
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private String mRelatedGid = null;//设置元数据信息
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public void setMeta(String gid, JSONObject metaInfo) {
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try { // 将Google Task 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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Log.e(TAG, "failed to put related gid");// 将元数据JSON对象转换为字符串并保存到notes字段
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}
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setNotes(metaInfo.toString());// 设置任务名称为预定义的元数据名称
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setName(GTaskStringUtils.META_NOTE_NAME);
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}
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public String getRelatedGid() {
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return mRelatedGid;
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}//检查是否需要保存
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@Override
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public boolean isWorthSaving() {
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return getNotes() != null;
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}//从远程JSON数据设置内容
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@Override
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public void setContentByRemoteJSON(JSONObject js) { // 调用父类方法处理基本数据
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super.setContentByRemoteJSON(js);// 如果notes字段不为空，尝试解析其中的Google Task ID
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if (getNotes() != null) {
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try {
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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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Log.w(TAG, "failed to get related gid");
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mRelatedGid = null;//从本地JSON数据设置内容（不应被调用）
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}
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}
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}
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@Override
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public void setContentByLocalJSON(JSONObject js) {// 此方法不应被调用，直接抛出异常
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// this function should not be called
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throw new IllegalAccessError("MetaData:setContentByLocalJSON should not be called");
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}
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@Override
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public JSONObject getLocalJSONFromContent() { // 此方法不应被调用，直接抛出异常
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throw new IllegalAccessError("MetaData:getLocalJSONFromContent should not be called");
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}
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@Override
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public int getSyncAction(Cursor c) { // 此方法不应被调用，直接抛出异常
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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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