content: /*******************************************************************************
   * Software Name : RCS IMS Stack
   *
   * Copyright (C) 2010-2016 Orange.
   *
   * 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.gsma.rcs.platform.network;
  
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import java.net.HttpURLConnection;
  import java.net.URL;
  
  /**
   * Android HTTP connection
   * 
   * @author jexa7410
   */
  public class AndroidHttpConnection implements HttpConnection {
      /**
       * HTTP connection
       */
      private HttpURLConnection connection = null;
  
      /**
       * Open the HTTP connection
       * 
       * @param url Remote URL
       * @throws IOException
       */
      public void open(String url) throws IOException {
          URL urlConn = new URL(url);
          connection = (HttpURLConnection) urlConn.openConnection();
          connection.connect();
      }
  
      /**
       * Close the HTTP connection
       * 
       * @throws IOException
       */
      public void close() throws IOException {
          if (connection != null) {
              connection.disconnect();
          }
      }
  
      /**
       * HTTP GET request
       * 
       * @return Response
       * @throws IOException
       */
      public ByteArrayOutputStream get() throws IOException {
          if (connection != null) {
              return sendHttpRequest(HttpConnection.GET_METHOD);
          }
          throw new IOException("Connection not opened");
      }
  
      /**
       * HTTP POST request
       * 
       * @return Response
       * @throws IOException
       */
      public ByteArrayOutputStream post() throws IOException {
          if (connection != null) {
              return sendHttpRequest(HttpConnection.POST_METHOD);
          }
          throw new IOException("Connection not opened");
      }
  
      /**
       * Send HTTP request
       * 
       * @param method HTTP method
       * @return Response
       * @throws IOException
       */
      private ByteArrayOutputStream sendHttpRequest(String method) throws IOException {
          connection.setRequestMethod(method);
          int rc = connection.getResponseCode();
          if (rc != HttpURLConnection.HTTP_OK) {
              throw new IOException("HTTP error " + rc);
          }
  
          InputStream inputStream = connection.getInputStream();
          ByteArrayOutputStream result = new ByteArrayOutputStream();
          int ch;
          while ((ch = inputStream.read()) != -1) {
              result.write(ch);
          }
          inputStream.close();
  
          return result;
      }
  }
  