Android Open Source - KISSmetrics-Android-SDK Connection Impl

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License

The source code is released under:

Apache License

Java Source Code

//
// KISSmetricsSDK
///*from   w  ww  . ja va2 s  .  c  o m*/
// Copyright 2014 KISSmetrics
//
// 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.kissmetrics.sdk;

import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

import android.os.Build;
import android.util.Log;


/**
 * ConnectionImpl 
 * 
 * Handles HttpURLConnections for KISSmetrics API queries. 
 * 
 */
public class ConnectionImpl implements Connection {
  
  private static final Integer CONNECTION_TIMEOUT = 20;
  
  HttpURLConnection connection;
  

  /**
   * Opens a connection from a URL.
   * Allows for injection of mock HttpURLConnection via method override.
   * 
   * @param url  API query URL
   * @return HttpURLConnection from the URL
   * @throws IOException
   */
  protected HttpURLConnection createHttpURLConnection(URL url) throws IOException{
    return (HttpURLConnection)url.openConnection();
  }
  
  
  /**
   * Makes a request to the provided API query urlString.
   * Handles the response and notifies the provided ConnectionDelgate on completion.
   * 
   * @param urlString  URL encoded API query string
   * @delegate delegate Object implementing the ConnectionDelegate interface
   */
  public void sendRecord(final String urlString, final ConnectionDelegate delegate) {

    URL url = null;
    connection = null;
    
    boolean success = false;
    boolean malformed = false;
    int responseCode = -1;
    
    try {
      url = new URL(urlString);
        
      connection = createHttpURLConnection(url);
      connection.setUseCaches(false);
      connection.setRequestMethod("GET");
      connection.setConnectTimeout(CONNECTION_TIMEOUT*1000);
      connection.setRequestProperty("User-Agent", "KISSmetrics-Android/2.1.0");
      // TODO: Apply any easily obtainable device/OS info to the user agent value 
      
      // addressing java.io.EOFException
      if (Build.VERSION.SDK != null && Build.VERSION.SDK_INT > 13) { 
        connection.setRequestProperty("Connection", "close"); 
      }
      
      responseCode = connection.getResponseCode();
      connection.connect();
      
    } catch (MalformedURLException e) {
      Log.w("KISSmetricsAPI", "Connection URL was malformed: " + e);
          malformed = true;
    } catch (Exception e) {
      Log.w("KISSmetricsAPI", "Connection experienced an Exception: " + e);
    } finally {

      if (connection != null) {
        connection.disconnect();
        connection = null;
      }
          
          if (malformed != true && (responseCode == 200 || responseCode == 304)) {
            success = true;
          } else {
            success = false;
          }

          // Callback to delegate
         if(delegate != null){
           delegate.connectionComplete(urlString, success, malformed);
         } else {
           Log.w("KISSmetricsAPI", "Connection delegate not available");
         }
       }
  }
}

Java Source Code List

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