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@ -24,59 +24,105 @@ 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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/**
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* MetaData类
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* 元数据任务,用于存储与Google Task相关的元信息
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* 继承自Task类,但仅用于存储元数据,不直接显示给用户
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*/
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public class MetaData extends Task {
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// 日志标签
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private final static String TAG = MetaData.class.getSimpleName();
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// 关联的Google Task ID
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private String mRelatedGid = null;
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/**
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* 设置元数据
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* 将Google Task ID和元信息存储在笔记内容中
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* @param gid Google Task ID
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* @param metaInfo 元信息JSON对象
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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 Task ID添加到元信息中
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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");
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}
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// 将元信息JSON字符串设置为笔记内容
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setNotes(metaInfo.toString());
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// 设置任务名称为元数据笔记的特定名称
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setName(GTaskStringUtils.META_NOTE_NAME);
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}
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/**
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* 获取关联的Google Task ID
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* @return Google Task 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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* 检查是否值得保存
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* 只有当笔记内容不为空时才值得保存
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* @return 是否值得保存
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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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* 解析远程JSON数据,提取关联的Google Task ID
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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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super.setContentByRemoteJSON(js); // 调用父类方法设置基础内容
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if (getNotes() != null) {
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try {
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// 从笔记内容中解析元信息JSON
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JSONObject metaInfo = new JSONObject(getNotes().trim());
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// 提取关联的Google Task ID
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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;
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mRelatedGid = null; // 解析失败时设置为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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* MetaData不应通过本地JSON设置内容,因此抛出异常
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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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// this function should not be called
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// 此函数不应被调用,因为MetaData不应从本地JSON加载
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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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* 从内容获取本地JSON
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* MetaData不应生成本地JSON,因此抛出异常
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* @return 本地JSON对象
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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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* 获取同步动作
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* MetaData不应进行同步操作,因此抛出异常
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* @param c 数据库游标
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* @return 同步动作类型
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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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}
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