Java tutorial
/* * Copyright (C) 2013 Julien Vermet * * 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 fr.julienvermet.bugdroid.service; import org.json.JSONException; import org.json.JSONObject; import android.app.IntentService; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.os.Message; import android.os.Messenger; import android.util.Log; import fr.julienvermet.bugdroid.model.Account; import fr.julienvermet.bugdroid.model.Instance; import fr.julienvermet.bugdroid.util.NetworkUtils; import fr.julienvermet.bugdroid.util.NetworkUtils.NetworkResult; public class CommentIntentService extends IntentService { private static final String QUERY = "query"; private static final String BUG_ID = "bugId"; public static final String MESSENGER = "messenger"; public static final String JSON_DATA = "jsonData"; public static final String STATUS_CODE = "statusCode"; public static final String RESULT = "result"; private static final String COMMENT_SUFFIX = "bug/%d/comment"; private static final String ACCOUNT_SUFFIX = "?username=%s&password=%s"; public CommentIntentService() { super(CommentIntentService.class.getSimpleName()); } public static Intent getIntent(Context context, Instance instance, int bugId, JSONObject jsonData) { Intent intent = new Intent(context, CommentIntentService.class); String accountSuffix = ""; Account account = instance.account; if (account != null) { accountSuffix = String.format(ACCOUNT_SUFFIX, account.username, account.password); } String bugSuffix = String.format(COMMENT_SUFFIX, bugId); String query = instance.url.concat(bugSuffix).concat(accountSuffix); intent.putExtra(JSON_DATA, jsonData.toString()); intent.putExtra(QUERY, query); intent.putExtra(BUG_ID, bugId); return intent; } @Override protected void onHandleIntent(Intent intent) { Bundle bundle = intent.getExtras(); String query = bundle.getString(QUERY); String jsonDataString = bundle.getString(JSON_DATA); try { JSONObject jsonData = new JSONObject(jsonDataString); NetworkResult networkResult = NetworkUtils.postJson(query, jsonData); sendResult(intent, networkResult.statusCode, networkResult.result); } catch (JSONException e) { sendResult(intent, 0, "JSONException"); e.printStackTrace(); } } private void sendResult(Intent intent, int statusCode, String result) { Bundle extras = intent.getExtras(); Messenger messenger = (Messenger) extras.get(MESSENGER); if (messenger != null) { Message msg = Message.obtain(); Bundle data = new Bundle(); data.putInt(STATUS_CODE, statusCode); data.putString(RESULT, result); msg.setData(data); try { messenger.send(msg); } catch (android.os.RemoteException e1) { Log.w(getClass().getName(), "Exception sending message", e1); } } } }