Java tutorial
/* * The MIT License (MIT) * * Copyright (c) 2014 Segment.io, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ package com.datasnap.android.request; import android.os.Handler; import com.datasnap.android.Analytics; import com.datasnap.android.Logger; import com.datasnap.android.models.Batch; import com.datasnap.android.utils.LooperThreadWithHandler; import java.io.IOException; import org.apache.http.HttpResponse; import org.apache.http.ParseException; import org.apache.http.util.EntityUtils; /** * A Looper/Handler backed request thread */ public class RequestThread extends LooperThreadWithHandler implements IRequestLayer { private IRequester requester; public RequestThread(IRequester requester) { this.requester = requester; } /** * Performs the request to the server. * * @param batch the action batch to send */ public void send(final Batch batch, final RequestCallback callback) { Handler handler = handler(); handler.post(new Runnable() { @Override public void run() { long start = System.currentTimeMillis(); // send the actual request HttpResponse response = requester.send(batch); long duration = System.currentTimeMillis() - start; Analytics.getStatistics().updateRequestTime(duration); boolean success = false; if (response == null) { // there's been an error Logger.w("Failed to make request to the server."); } else if (response.getStatusLine().getStatusCode() != 200) { try { // there's been a server error Logger.e("Received a failed response from the server. %s", EntityUtils.toString(response.getEntity())); } catch (ParseException e) { Logger.w(e, "Failed to parse the response from the server."); } catch (IOException e) { Logger.w(e, "Failed to read the response from the server."); } } else { Logger.d("Successfully sent a batch to the server"); success = true; } if (callback != null) callback.onRequestCompleted(success); } }); } /** * Allow custom {link {@link com.datasnap.android.request.IRequester} for testing. */ public void setRequester(IRequester requester) { this.requester = requester; } }