test123/MetaData.java

/*
 * 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;

import android.database.Cursor;
import android.util.Log;

import net.micode.notes.tool.GTaskStringUtils;

import org.json.JSONException;
import org.json.JSONObject;

// MetaData类继承自Task类
public class MetaData extends Task {
        // 日志标签，用于记录日志
    private final static String TAG = MetaData.class.getSimpleName();
 // 关联的任务ID
    private String mRelatedGid = null;
  // 设置元数据信息
    public void setMeta(String gid, JSONObject metaInfo) {
        try {
             // 将关联的任务ID放入metaInfo对象中
            metaInfo.put(GTaskStringUtils.META_HEAD_GTASK_ID, gid);
        } catch (JSONException e) {
             // 如果发生异常，记录错误日志
            Log.e(TAG, "failed to put related gid");
        }
           // 将metaInfo对象转换为字符串并保存
        setNotes(metaInfo.toString());
               // 设置笔记名称
        setName(GTaskStringUtils.META_NOTE_NAME);
    }
    // 获取关联的任务ID
    public String getRelatedGid() {
        return mRelatedGid;
    }
    // 重写isWorthSaving方法，判断是否值得保存
    @Override
    public boolean isWorthSaving() {
          // 如果笔记内容不为空，则值得保存
        return getNotes() != null;
    }
   // 重写setContentByRemoteJSON方法，根据远程JSON设置内容
    @Override
    public void setContentByRemoteJSON(JSONObject js) {
           // 调用父类的方法
        super.setContentByRemoteJSON(js);
               // 如果笔记内容不为空，则解析并获取关联的任务ID
        if (getNotes() != null) {
            try {
                JSONObject metaInfo = new JSONObject(getNotes().trim());
                mRelatedGid = metaInfo.getString(GTaskStringUtils.META_HEAD_GTASK_ID);
            } catch (JSONException e) {
                          // 如果发生异常，记录警告日志并设置关联的任务ID为null
                Log.w(TAG, "failed to get related gid");
                mRelatedGid = null;
            }
        }
    }
    // 重写setContentByLocalJSON方法，此方法不应该被调用
    @Override
    public void setContentByLocalJSON(JSONObject js) {
             // 抛出非法访问错误
        // this function should not be called
        throw new IllegalAccessError("MetaData:setContentByLocalJSON should not be called");
    }
    // 重写getLocalJSONFromContent方法，此方法不应该被调用
    @Override
    public JSONObject getLocalJSONFromContent() {
                // 抛出非法访问错误
        throw new IllegalAccessError("MetaData:getLocalJSONFromContent should not be called");
    }
    // 重写getSyncAction方法，此方法不应该被调用
    @Override
    public int getSyncAction(Cursor c) {
           // 抛出非法访问错误
        throw new IllegalAccessError("MetaData:getSyncAction should not be called");
    }

}