Android Open Source - BusTicketer Connection Runnable

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Back to project page BusTicketer.

License

The source code is released under:

Copyright (c) 2013, Nelspike All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Red...

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Java Source Code

package bus.ticketer.connection;
/* w w  w. jav a 2 s  .c o  m*/
import java.io.*;
import java.net.*;
import java.util.*;

import org.apache.http.*;
import org.apache.http.message.*;
import org.json.*;

public class ConnectionRunnable implements Runnable {

  private String link, resultString, method;
  private ArrayList<NameValuePair> payload;
  private int readTimeout = 10000, connectionTimeout = 15000;
  private JSONObject resultObject;
  
  public ConnectionRunnable(String link, String method, ArrayList<NameValuePair> payload) {
    this.link = link;
    this.method = method;
    this.payload = payload;
  }
  
  @Override
  public void run() {
    connect();
  }
  
  private void connect() {
    HttpURLConnection con = null;
    String line = "";
    StringBuffer sb = new StringBuffer();
        try {
            
            URL url = new URL(link);
            con = (HttpURLConnection) url.openConnection();
            con.setReadTimeout(readTimeout);
            con.setConnectTimeout(connectionTimeout);
            con.setRequestMethod(method);
            con.setDoInput(true);

            if(payload != null) {
              con.setDoOutput(true);
                
              ArrayList<NameValuePair> params = new ArrayList<NameValuePair>();
              
              for(NameValuePair pair : payload)
                params.add(new BasicNameValuePair(pair.getName(), pair.getValue()));
              
              OutputStream os = con.getOutputStream();
              BufferedWriter writer = new BufferedWriter(
                      new OutputStreamWriter(os, "UTF-8"));
              writer.write(getQuery(params));
              writer.flush();
              writer.close();
              os.close();
            }
            
            // Start the connection
            con.connect();

            // Read results from the query
            BufferedReader reader = new BufferedReader(new InputStreamReader(con.getInputStream(), "UTF-8" ));
            
            while ((line = reader.readLine()) != null)
        sb.append(line);
            
            resultString = sb.toString();
            try {
        setResultObject(new JSONObject(resultString));
      } catch (JSONException e) {
        //Can't parse JSON
      }
            
            reader.close();
        }
        catch (IOException e) {
          e.printStackTrace();
          } 
        finally {
            if (con != null)
              con.disconnect();
         }
  }
  
  private String getQuery(List<NameValuePair> params) throws UnsupportedEncodingException  {
      StringBuilder result = new StringBuilder();
      boolean first = true;

      for (NameValuePair pair : params) {
          if (first)
              first = false;
          else
              result.append("&");

          result.append(URLEncoder.encode(pair.getName(), "UTF-8"));
          result.append("=");
          result.append(URLEncoder.encode(pair.getValue(), "UTF-8"));
      }

      return result.toString();
  }

  public JSONObject getResultObject() {
    return resultObject;
  }

  public void setResultObject(JSONObject resultObject) {
    this.resultObject = resultObject;
  }

}

Java Source Code List