Android Open Source - RunForLife J S O N Parser

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License

The source code is released under:

Copyright 2014 Rupan Talwar

Java Source Code

/////////////////////////////////////////////////////////////////////////////////
//                                                                             //
//  JSONParser.java - RunForLife                                               //
//              Source file containing JSONParser class                        //
//  Language:        Java                                                      //
//  Platform:        Android SDK                                               //
//  Course No.:      CIS-651                                                   //
//  Assignment No.:  Final Project                                             //
//  Author:          Rupan Talwar, SUID: 402408828, rutalwar@syr.edu           //
//                   Ankur Pandey, SUID: 408067486, apandey@syr.edu            //
//                                                                             //
/////////////////////////////////////////////////////////////////////////////////
/*from   ww w .  j a  v a2  s  .  c  o  m*/

package com.runforlife.runforlife;


//------------------------------------------------------------------------------
// Importing Files
//------------------------------------------------------------------------------
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.List;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URLEncodedUtils;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONException;
import org.json.JSONObject;

import android.util.Log;



//------------------------------------------------------------------------------
// Class implementation
//------------------------------------------------------------------------------
public class JSONParser {

  static InputStream is = null;
  static JSONObject jObj = null;
  static String json = "";
  
    //------------------------------------------------------------------------------
    // Constructor
    //------------------------------------------------------------------------------
    public JSONParser() {

  }

    //------------------------------------------------------------------------------
    // Function get json from url
    // by making HTTP POST or GET mehtod
    //------------------------------------------------------------------------------
    public JSONObject makeHttpRequest(String url, String method,
      List<NameValuePair> params) {
        
        //------------------------------------------------------------------------------
        // Making HTTP request
        //------------------------------------------------------------------------------
        try {
      
            //------------------------------------------------------------------------------
            // Check for request method
            //------------------------------------------------------------------------------
            if(method == "POST"){
                
                //------------------------------------------------------------------------------
                // Creating DefaultHttpClient object
                //------------------------------------------------------------------------------
                DefaultHttpClient httpClient = new DefaultHttpClient();
        HttpPost httpPost = new HttpPost(url);
        httpPost.setEntity(new UrlEncodedFormEntity(params));

        HttpResponse httpResponse = httpClient.execute(httpPost);
        HttpEntity httpEntity = httpResponse.getEntity();
        is = httpEntity.getContent();
        
      }else if(method == "GET"){
        
                //------------------------------------------------------------------------------
                // Check for request method
                //------------------------------------------------------------------------------
                DefaultHttpClient httpClient = new DefaultHttpClient();
        String paramString = URLEncodedUtils.format(params, "utf-8");
        url += "?" + paramString;
        HttpGet httpGet = new HttpGet(url);

        HttpResponse httpResponse = httpClient.execute(httpGet);
        HttpEntity httpEntity = httpResponse.getEntity();
        is = httpEntity.getContent();
      }      
      

    } catch (UnsupportedEncodingException e) {
      e.printStackTrace();
    } catch (ClientProtocolException e) {
      e.printStackTrace();
    } catch (IOException e) {
      e.printStackTrace();
    }

    try {
      BufferedReader reader = new BufferedReader(new InputStreamReader(
          is, "iso-8859-1"), 8);
      StringBuilder sb = new StringBuilder();
      String line = null;
      while ((line = reader.readLine()) != null) {
        sb.append(line + "\n");
      }
      is.close();
      json = sb.toString();
    } catch (Exception e) {
      Log.e("Buffer Error", "Error converting result " + e.toString());
    }

        //------------------------------------------------------------------------------
        // Parse the string to a JSON object
        //------------------------------------------------------------------------------
        try {
      jObj = new JSONObject(json);
    } catch (JSONException e) {
      Log.e("JSON Parser", "Error parsing data " + e.toString());
    }

        //------------------------------------------------------------------------------
        // Return JSON String
        //------------------------------------------------------------------------------
        return jObj;

  }
}

Java Source Code List

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