com.swetha.easypark.EasyParkHttpClient.java Source code

Introduction

Here is the source code for com.swetha.easypark.EasyParkHttpClient.java

Source

/***************************************************************
Copyright (c) 2015 swethavs
    
[This program is licensed under the "MIT License"]
    
Please see the file COPYING in the source
    
distribution of this software for license terms.
****************************************************************/

package com.swetha.easypark;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;

import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;

import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.params.ConnManagerParams;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import org.json.JSONObject;

import android.util.Log;

/**
 * 
 * @author Swetha Venkatachari Sundarajan
 * This class makes an HTTP post request to the URL with the post params
 *
 */

public class EasyParkHttpClient {

    public static final int HTTP_TIMEOUT = 100 * 1000; // milliseconds
    private static HttpClient mHttpClient;
    static JSONObject jObj = null;
    static String json = "";
    static InputStream is = null;

    private static HttpClient getHttpClient() {

        if (mHttpClient == null) {
            mHttpClient = new DefaultHttpClient();

            final HttpParams params = mHttpClient.getParams();
            HttpConnectionParams.setConnectionTimeout(params, HTTP_TIMEOUT);
            HttpConnectionParams.setSoTimeout(params, HTTP_TIMEOUT);
            ConnManagerParams.setTimeout(params, HTTP_TIMEOUT);
        }

        return mHttpClient;
    }

    /** 
     * @param url of the website and the post request
     * @return http response in string */
    public static String executeHttpPost(String url, ArrayList<NameValuePair> postParameters) throws Exception {

        BufferedReader in = null;

        try {

            HttpClient client = getHttpClient();

            HttpPost request = new HttpPost(url);

            UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(

                    postParameters);

            request.setEntity(formEntity);
            Log.i("CustomHttpClient", "before sending request" + request);
            HttpResponse response = client.execute(request);
            Log.i("CustomHttpClient", "after sending request" + response.toString());
            //Log.i("CustomHttpClient", "after sending request response in to string" +response.getEntity().getContent().toString());

            in = new BufferedReader(new InputStreamReader(response.getEntity()

                    .getContent()));

            StringBuffer sb = new StringBuffer("");

            String line = "";

            String NL = System.getProperty("line.separator");

            while ((line = in.readLine()) != null) {

                sb.append(line + NL);

            }

            in.close();

            String result = sb.toString();

            return result;

        }

        finally {

            if (in != null) {

                try {

                    in.close();

                } catch (IOException e) {

                    Log.e("log_tag", "Error converting result " + e.toString());

                    e.printStackTrace();

                }

            }
        }

    }

}