Java tutorial
/* * 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 com.asd.littleprincesbeauty.data; import java.util.ArrayList; import org.json.JSONException; import org.json.JSONObject; import android.database.Cursor; import android.util.Log; import com.asd.littleprincesbeauty.data.tool.Notes; import com.asd.littleprincesbeauty.data.tool.Notes.NoteColumns; import com.asd.littleprincesbeauty.exception.ActionFailureException; import com.asd.littleprincesbeauty.tools.GTaskStringUtils; public class TaskList extends Node { private static final String TAG = TaskList.class.getSimpleName(); private int mIndex; private ArrayList<Task> mChildren; public TaskList() { super(); mChildren = new ArrayList<Task>(); mIndex = 1; } @Override public JSONObject getCreateAction(int actionId) { JSONObject js = new JSONObject(); try { // action_type js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, GTaskStringUtils.GTASK_JSON_ACTION_TYPE_CREATE); // action_id js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId); // index js.put(GTaskStringUtils.GTASK_JSON_INDEX, mIndex); // entity_delta JSONObject entity = new JSONObject(); entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName()); entity.put(GTaskStringUtils.GTASK_JSON_CREATOR_ID, "null"); entity.put(GTaskStringUtils.GTASK_JSON_ENTITY_TYPE, GTaskStringUtils.GTASK_JSON_TYPE_GROUP); js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity); } catch (JSONException e) { Log.e(TAG, e.toString()); e.printStackTrace(); throw new ActionFailureException("fail to generate tasklist-create jsonobject"); } return js; } @Override public JSONObject getUpdateAction(int actionId) { JSONObject js = new JSONObject(); try { // action_type js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, GTaskStringUtils.GTASK_JSON_ACTION_TYPE_UPDATE); // action_id js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId); // id js.put(GTaskStringUtils.GTASK_JSON_ID, getGid()); // entity_delta JSONObject entity = new JSONObject(); entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName()); entity.put(GTaskStringUtils.GTASK_JSON_DELETED, getDeleted()); js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity); } catch (JSONException e) { Log.e(TAG, e.toString()); e.printStackTrace(); throw new ActionFailureException("fail to generate tasklist-update jsonobject"); } return js; } @Override public void setContentByRemoteJSON(JSONObject js) { if (js != null) { try { // id if (js.has(GTaskStringUtils.GTASK_JSON_ID)) { setGid(js.getString(GTaskStringUtils.GTASK_JSON_ID)); } // last_modified if (js.has(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)) { setLastModified(js.getLong(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)); } // name if (js.has(GTaskStringUtils.GTASK_JSON_NAME)) { setName(js.getString(GTaskStringUtils.GTASK_JSON_NAME)); } } catch (JSONException e) { Log.e(TAG, e.toString()); e.printStackTrace(); throw new ActionFailureException("fail to get tasklist content from jsonobject"); } } } @Override public void setContentByLocalJSON(JSONObject js) { if (js == null || !js.has(GTaskStringUtils.META_HEAD_NOTE)) { Log.w(TAG, "setContentByLocalJSON: nothing is avaiable"); } try { JSONObject folder = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE); if (folder.getInt(NoteColumns.TYPE) == Notes.TYPE_FOLDER) { String name = folder.getString(NoteColumns.SNIPPET); setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX + name); } else if (folder.getInt(NoteColumns.TYPE) == Notes.TYPE_SYSTEM) { if (folder.getLong(NoteColumns.ID) == Notes.ID_ROOT_FOLDER) setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_DEFAULT); else if (folder.getLong(NoteColumns.ID) == Notes.ID_CALL_RECORD_FOLDER) setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_CALL_NOTE); else Log.e(TAG, "invalid system folder"); } else { Log.e(TAG, "error type"); } } catch (JSONException e) { Log.e(TAG, e.toString()); e.printStackTrace(); } } @Override public JSONObject getLocalJSONFromContent() { try { JSONObject js = new JSONObject(); JSONObject folder = new JSONObject(); String folderName = getName(); if (getName().startsWith(GTaskStringUtils.MIUI_FOLDER_PREFFIX)) folderName = folderName.substring(GTaskStringUtils.MIUI_FOLDER_PREFFIX.length(), folderName.length()); folder.put(NoteColumns.SNIPPET, folderName); if (folderName.equals(GTaskStringUtils.FOLDER_DEFAULT) || folderName.equals(GTaskStringUtils.FOLDER_CALL_NOTE)) folder.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); else folder.put(NoteColumns.TYPE, Notes.TYPE_FOLDER); js.put(GTaskStringUtils.META_HEAD_NOTE, folder); return js; } catch (JSONException e) { Log.e(TAG, e.toString()); e.printStackTrace(); return null; } } @Override public int getSyncAction(Cursor c) { try { if (c.getInt(SqlNote.LOCAL_MODIFIED_COLUMN) == 0) { // there is no local update if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) { // no update both side return SYNC_ACTION_NONE; } else { // apply remote to local return SYNC_ACTION_UPDATE_LOCAL; } } else { // validate gtask id if (!c.getString(SqlNote.GTASK_ID_COLUMN).equals(getGid())) { Log.e(TAG, "gtask id doesn't match"); return SYNC_ACTION_ERROR; } if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) { // local modification only return SYNC_ACTION_UPDATE_REMOTE; } else { // for folder conflicts, just apply local modification return SYNC_ACTION_UPDATE_REMOTE; } } } catch (Exception e) { Log.e(TAG, e.toString()); e.printStackTrace(); } return SYNC_ACTION_ERROR; } public int getChildTaskCount() { return mChildren.size(); } public boolean addChildTask(Task task) { boolean ret = false; if (task != null && !mChildren.contains(task)) { ret = mChildren.add(task); if (ret) { // need to set prior sibling and parent task.setPriorSibling(mChildren.isEmpty() ? null : mChildren.get(mChildren.size() - 1)); task.setParent(this); } } return ret; } public boolean addChildTask(Task task, int index) { if (index < 0 || index > mChildren.size()) { Log.e(TAG, "add child task: invalid index"); return false; } int pos = mChildren.indexOf(task); if (task != null && pos == -1) { mChildren.add(index, task); // update the task list Task preTask = null; Task afterTask = null; if (index != 0) preTask = mChildren.get(index - 1); if (index != mChildren.size() - 1) afterTask = mChildren.get(index + 1); task.setPriorSibling(preTask); if (afterTask != null) afterTask.setPriorSibling(task); } return true; } public boolean removeChildTask(Task task) { boolean ret = false; int index = mChildren.indexOf(task); if (index != -1) { ret = mChildren.remove(task); if (ret) { // reset prior sibling and parent task.setPriorSibling(null); task.setParent(null); // update the task list if (index != mChildren.size()) { mChildren.get(index).setPriorSibling(index == 0 ? null : mChildren.get(index - 1)); } } } return ret; } public boolean moveChildTask(Task task, int index) { if (index < 0 || index >= mChildren.size()) { Log.e(TAG, "move child task: invalid index"); return false; } int pos = mChildren.indexOf(task); if (pos == -1) { Log.e(TAG, "move child task: the task should in the list"); return false; } if (pos == index) return true; return (removeChildTask(task) && addChildTask(task, index)); } public Task findChildTaskByGid(String gid) { for (int i = 0; i < mChildren.size(); i++) { Task t = mChildren.get(i); if (t.getGid().equals(gid)) { return t; } } return null; } public int getChildTaskIndex(Task task) { return mChildren.indexOf(task); } public Task getChildTaskByIndex(int index) { if (index < 0 || index >= mChildren.size()) { Log.e(TAG, "getTaskByIndex: invalid index"); return null; } return mChildren.get(index); } public Task getChilTaskByGid(String gid) { for (Task task : mChildren) { if (task.getGid().equals(gid)) return task; } return null; } public ArrayList<Task> getChildTaskList() { return this.mChildren; } public void setIndex(int index) { this.mIndex = index; } public int getIndex() { return this.mIndex; } }