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@ -31,19 +31,18 @@ import org.json.JSONArray;
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import org.json.JSONException;
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import org.json.JSONObject;
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/**
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* 任务类,继承自Node抽象类,用于表示Google Tasks中的任务
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* 负责处理任务的创建、更新、同步等操作,并与本地数据库中的笔记数据进行映射
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*/
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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;
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private String mNotes;
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private JSONObject mMetaInfo;
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private Task mPriorSibling;
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private TaskList mParent;
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private boolean mCompleted; // 任务是否已完成
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private String mNotes; // 任务备注信息
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private JSONObject mMetaInfo; // 任务元数据,存储与本地笔记的关联信息
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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; // 父任务列表
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public Task() {
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super();
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@ -54,21 +53,26 @@ public class Task extends Node {
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mMetaInfo = null;
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}
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/**
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* 生成创建任务的JSON请求
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* @param actionId 操作ID
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* @return JSON格式的创建任务请求
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*/
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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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// action_type
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// 设置操作类型为创建任务
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js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
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GTaskStringUtils.GTASK_JSON_ACTION_TYPE_CREATE);
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// action_id
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// 设置操作ID
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js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId);
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// index
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// 设置任务在列表中的索引位置
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js.put(GTaskStringUtils.GTASK_JSON_INDEX, mParent.getChildTaskIndex(this));
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// entity_delta
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// 设置任务实体信息
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JSONObject entity = new JSONObject();
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entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName());
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entity.put(GTaskStringUtils.GTASK_JSON_CREATOR_ID, "null");
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@ -79,17 +83,17 @@ public class Task extends Node {
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}
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js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity);
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// parent_id
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// 设置父任务列表ID
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js.put(GTaskStringUtils.GTASK_JSON_PARENT_ID, mParent.getGid());
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// dest_parent_type
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// 设置目标父类型为任务组
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js.put(GTaskStringUtils.GTASK_JSON_DEST_PARENT_TYPE,
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GTaskStringUtils.GTASK_JSON_TYPE_GROUP);
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// list_id
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// 设置任务列表ID
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js.put(GTaskStringUtils.GTASK_JSON_LIST_ID, mParent.getGid());
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// prior_sibling_id
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// 设置前一个兄弟任务ID(如果有)
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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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@ -97,27 +101,32 @@ public class Task extends Node {
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} catch (JSONException e) {
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Log.e(TAG, e.toString());
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e.printStackTrace();
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throw new ActionFailureException("fail to generate task-create jsonobject");
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throw new ActionFailureException("生成创建任务的JSON对象失败");
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}
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return js;
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}
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/**
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* 生成更新任务的JSON请求
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* @param actionId 操作ID
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* @return JSON格式的更新任务请求
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*/
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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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// action_type
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// 设置操作类型为更新任务
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js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
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GTaskStringUtils.GTASK_JSON_ACTION_TYPE_UPDATE);
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// action_id
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// 设置操作ID
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js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId);
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// id
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// 设置任务ID
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js.put(GTaskStringUtils.GTASK_JSON_ID, getGid());
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// entity_delta
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// 设置要更新的任务实体信息
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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) {
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@ -129,67 +138,78 @@ public class Task extends Node {
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} catch (JSONException e) {
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Log.e(TAG, e.toString());
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e.printStackTrace();
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throw new ActionFailureException("fail to generate task-update jsonobject");
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throw new ActionFailureException("生成更新任务的JSON对象失败");
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}
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return js;
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}
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/**
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* 从远程JSON数据设置任务内容
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* @param js 包含任务信息的JSON对象
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*/
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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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// id
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// 从JSON中提取并设置任务ID
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if (js.has(GTaskStringUtils.GTASK_JSON_ID)) {
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setGid(js.getString(GTaskStringUtils.GTASK_JSON_ID));
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}
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// last_modified
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// 提取并设置最后修改时间
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if (js.has(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)) {
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setLastModified(js.getLong(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED));
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}
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// name
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// 提取并设置任务名称
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if (js.has(GTaskStringUtils.GTASK_JSON_NAME)) {
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setName(js.getString(GTaskStringUtils.GTASK_JSON_NAME));
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}
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// notes
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// 提取并设置任务备注
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if (js.has(GTaskStringUtils.GTASK_JSON_NOTES)) {
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setNotes(js.getString(GTaskStringUtils.GTASK_JSON_NOTES));
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}
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// deleted
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// 提取并设置任务是否已删除
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if (js.has(GTaskStringUtils.GTASK_JSON_DELETED)) {
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setDeleted(js.getBoolean(GTaskStringUtils.GTASK_JSON_DELETED));
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}
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// completed
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// 提取并设置任务是否已完成
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if (js.has(GTaskStringUtils.GTASK_JSON_COMPLETED)) {
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setCompleted(js.getBoolean(GTaskStringUtils.GTASK_JSON_COMPLETED));
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}
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} catch (JSONException e) {
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Log.e(TAG, e.toString());
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e.printStackTrace();
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throw new ActionFailureException("fail to get task content from jsonobject");
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throw new ActionFailureException("从JSON对象获取任务内容失败");
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}
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}
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}
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/**
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* 从本地JSON数据设置任务内容
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* @param js 包含本地笔记信息的JSON对象
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*/
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public void setContentByLocalJSON(JSONObject js) {
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if (js == null || !js.has(GTaskStringUtils.META_HEAD_NOTE)
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|| !js.has(GTaskStringUtils.META_HEAD_DATA)) {
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Log.w(TAG, "setContentByLocalJSON: nothing is avaiable");
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Log.w(TAG, "setContentByLocalJSON: 没有可用数据");
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}
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try {
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// 提取笔记和数据信息
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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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// 确保笔记类型正确
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if (note.getInt(NoteColumns.TYPE) != Notes.TYPE_NOTE) {
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Log.e(TAG, "invalid type");
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Log.e(TAG, "无效的笔记类型");
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return;
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}
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// 从数据中提取任务名称
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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 (TextUtils.equals(data.getString(DataColumns.MIME_TYPE), DataConstants.NOTE)) {
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@ -204,16 +224,21 @@ public class Task extends Node {
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}
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}
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/**
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* 将任务内容转换为本地JSON格式
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* @return 包含任务信息的JSON对象
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*/
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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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// new task created from web
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// 从网页创建的新任务
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if (name == null) {
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Log.w(TAG, "the note seems to be an empty one");
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Log.w(TAG, "该笔记似乎为空");
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return null;
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}
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// 创建新的JSON对象表示任务
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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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@ -225,10 +250,11 @@ public class Task extends Node {
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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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// synced task
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// 已同步的任务,更新现有元数据
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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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// 更新任务名称
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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 (TextUtils.equals(data.getString(DataColumns.MIME_TYPE), DataConstants.NOTE)) {
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@ -247,6 +273,10 @@ public class Task extends Node {
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}
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}
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/**
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* 设置任务的元数据信息
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* @param metaData 元数据对象
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*/
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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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@ -258,6 +288,11 @@ public class Task extends Node {
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}
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}
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/**
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* 根据本地数据库状态确定同步操作类型
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* @param c 包含本地笔记信息的数据库游标
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* @return 同步操作类型(如更新远程、更新本地、冲突等)
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*/
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public int getSyncAction(Cursor c) {
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try {
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JSONObject noteInfo = null;
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@ -266,40 +301,42 @@ public class Task extends Node {
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}
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if (noteInfo == null) {
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Log.w(TAG, "it seems that note meta has been deleted");
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Log.w(TAG, "笔记元数据似乎已被删除");
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return SYNC_ACTION_UPDATE_REMOTE;
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}
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if (!noteInfo.has(NoteColumns.ID)) {
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Log.w(TAG, "remote note id seems to be deleted");
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Log.w(TAG, "远程笔记ID似乎已被删除");
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return SYNC_ACTION_UPDATE_LOCAL;
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}
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// validate the note id now
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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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Log.w(TAG, "note id doesn't match");
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Log.w(TAG, "笔记ID不匹配");
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return SYNC_ACTION_UPDATE_LOCAL;
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}
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// 判断是否有本地修改
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if (c.getInt(SqlNote.LOCAL_MODIFIED_COLUMN) == 0) {
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// there is no local update
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// 本地没有更新
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if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) {
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// no update both side
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// 两边都没有更新
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return SYNC_ACTION_NONE;
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} else {
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// apply remote to local
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// 应用远程更新到本地
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return SYNC_ACTION_UPDATE_LOCAL;
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}
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} else {
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// validate gtask id
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// 有本地修改,验证GTask ID
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if (!c.getString(SqlNote.GTASK_ID_COLUMN).equals(getGid())) {
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Log.e(TAG, "gtask id doesn't match");
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Log.e(TAG, "GTask ID不匹配");
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return SYNC_ACTION_ERROR;
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|
|
|
}
|
|
|
|
|
if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) {
|
|
|
|
|
// local modification only
|
|
|
|
|
// 只有本地修改
|
|
|
|
|
return SYNC_ACTION_UPDATE_REMOTE;
|
|
|
|
|
} else {
|
|
|
|
|
// 本地和远程都有修改,发生冲突
|
|
|
|
|
return SYNC_ACTION_UPDATE_CONFLICT;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
@ -311,11 +348,17 @@ public class Task extends Node {
|
|
|
|
|
return SYNC_ACTION_ERROR;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 判断任务是否值得保存
|
|
|
|
|
* @return 如果任务有名称或备注,则返回true,否则返回false
|
|
|
|
|
*/
|
|
|
|
|
public boolean isWorthSaving() {
|
|
|
|
|
return mMetaInfo != null || (getName() != null && getName().trim().length() > 0)
|
|
|
|
|
|| (getNotes() != null && getNotes().trim().length() > 0);
|
|
|
|
|
return mMetaInfo != null ||
|
|
|
|
|
(getName() != null && getName().trim().length() > 0) ||
|
|
|
|
|
(getNotes() != null && getNotes().trim().length() > 0);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// Getter和Setter方法
|
|
|
|
|
public void setCompleted(boolean completed) {
|
|
|
|
|
this.mCompleted = completed;
|
|
|
|
|
}
|
|
|
|
|
@ -347,5 +390,4 @@ public class Task extends Node {
|
|
|
|
|
public TaskList getParent() {
|
|
|
|
|
return this.mParent;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
}
|