content: /*
      Android Asynchronous Http Client Sample
      Copyright (c) 2014 Marek Sebera <marek.sebera@gmail.com>
      https://github.com/android-async-http/android-async-http
  
      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
  
          https://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.loopj.android.http.sample;
  
  import android.app.Activity;
  import android.os.Looper;
  import android.util.Log;
  import android.widget.Toast;
  
  import com.loopj.android.http.AsyncHttpClient;
  import com.loopj.android.http.AsyncHttpResponseHandler;
  import com.loopj.android.http.RequestHandle;
  import com.loopj.android.http.ResponseHandlerInterface;
  
  import java.util.concurrent.Callable;
  import java.util.concurrent.ExecutorService;
  import java.util.concurrent.Executors;
  import java.util.concurrent.FutureTask;
  import java.util.concurrent.TimeUnit;
  import java.util.Locale;
  
  import cz.msebera.android.httpclient.Header;
  import cz.msebera.android.httpclient.HttpEntity;
  
  public class AsyncBackgroundThreadSample extends SampleParentActivity {
      private static final String LOG_TAG = "AsyncBackgroundThreadSample";
  
      private final ExecutorService executor = Executors.newSingleThreadExecutor();
  
      @Override
      public void onStop() {
          super.onStop();
      }
  
      @Override
      public RequestHandle executeSample(final AsyncHttpClient client, final String URL, final Header[] headers, HttpEntity entity, final ResponseHandlerInterface responseHandler) {
  
          final Activity ctx = this;
          FutureTask<RequestHandle> future = new FutureTask<>(new Callable<RequestHandle>() {
              public RequestHandle call() {
                  Log.d(LOG_TAG, "Executing GET request on background thread");
                  return client.get(ctx, URL, headers, null, responseHandler);
              }
          });
  
          executor.execute(future);
  
          RequestHandle handle = null;
          try {
              handle = future.get(5, TimeUnit.SECONDS);
              Log.d(LOG_TAG, "Background thread for GET request has finished");
          } catch (Exception e) {
              Toast.makeText(ctx, e.getMessage(), Toast.LENGTH_LONG).show();
              e.printStackTrace();
          }
  
          return handle;
      }
  
      @Override
      public int getSampleTitle() {
          return R.string.title_async_background_thread;
      }
  
      @Override
      public boolean isRequestBodyAllowed() {
          return false;
      }
  
      @Override
      public boolean isRequestHeadersAllowed() {
          return false;
      }
  
      @Override
      public String getDefaultURL() {
          return PROTOCOL + "httpbin.org/get";
      }
  
      @Override
      public ResponseHandlerInterface getResponseHandler() {
  
          FutureTask<ResponseHandlerInterface> future = new FutureTask<>(new Callable<ResponseHandlerInterface>() {
  
              @Override
              public ResponseHandlerInterface call() throws Exception {
                  Log.d(LOG_TAG, "Creating AsyncHttpResponseHandler on background thread");
                  return new AsyncHttpResponseHandler(Looper.getMainLooper()) {
  
                      @Override
                      public void onStart() {
                          clearOutputs();
                      }
  
                      @Override
                      public void onSuccess(int statusCode, Header[] headers, byte[] response) {
                          Log.d(LOG_TAG, String.format(Locale.US, "onSuccess executing on main thread : %B", Looper.myLooper() == Looper.getMainLooper()));
                          debugHeaders(LOG_TAG, headers);
                          debugStatusCode(LOG_TAG, statusCode);
                          debugResponse(LOG_TAG, new String(response));
                      }
  
                      @Override
                      public void onFailure(int statusCode, Header[] headers, byte[] errorResponse, Throwable e) {
                          Log.d(LOG_TAG, String.format(Locale.US, "onFailure executing on main thread : %B", Looper.myLooper() == Looper.getMainLooper()));
                          debugHeaders(LOG_TAG, headers);
                          debugStatusCode(LOG_TAG, statusCode);
                          debugThrowable(LOG_TAG, e);
                          if (errorResponse != null) {
                              debugResponse(LOG_TAG, new String(errorResponse));
                          }
                      }
  
                      @Override
                      public void onRetry(int retryNo) {
                          Toast.makeText(AsyncBackgroundThreadSample.this,
                                  String.format(Locale.US, "Request is retried, retry no. %d", retryNo),
                                  Toast.LENGTH_SHORT)
                                  .show();
                      }
                  };
              }
          });
  
          executor.execute(future);
  
          ResponseHandlerInterface responseHandler = null;
          try {
              responseHandler = future.get();
              Log.d(LOG_TAG, "Background thread for AsyncHttpResponseHandler has finished");
          } catch (Exception e) {
              e.printStackTrace();
          }
  
          return responseHandler;
      }
  }
  