edu.illinois.whereru.HTTPRequest.java Source code

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Here is the source code for edu.illinois.whereru.HTTPRequest.java

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/*
* 
* Copyright (C) 2012 Hyuk Don Kwon
*
* 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 edu.illinois.whereru;

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

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
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;

public class HTTPRequest {
    private static final String DEBUG_TAG = "[HTTPRequest]";

    // Parsing JSON object from contents returned from DB
    public static JSONObject makeHttpRequest(String urlString, String method, List<NameValuePair> params) {

        JSONObject jsonObject = null;

        try {

            DefaultHttpClient httpClient = new DefaultHttpClient();
            HttpResponse httpResponse;

            if (method.equals("POST")) {
                // init post
                HttpPost httpPost = new HttpPost(urlString);
                // set the resource to send
                httpPost.setEntity(new UrlEncodedFormEntity(params));
                // send the request, retrieve response
                httpResponse = httpClient.execute(httpPost);

            } else {
                // GET method
                // formulate url
                String paramString = URLEncodedUtils.format(params, "utf-8");
                urlString += "?" + paramString;
                // init GET
                HttpGet httpGet = new HttpGet(urlString);
                // send the request, retrieve response
                httpResponse = httpClient.execute(httpGet);

            }

            // retrieve content from the response
            HttpEntity httpEntity = httpResponse.getEntity();
            InputStream is = httpEntity.getContent();

            BufferedReader reader = new BufferedReader(new InputStreamReader(is));
            StringBuilder sb = new StringBuilder();
            String line = null;

            while ((line = reader.readLine()) != null) {
                sb.append(line + "\n");
            }

            is.close();
            jsonObject = new JSONObject(sb.toString());
        } catch (NullPointerException e) {

        } catch (JSONException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        return jsonObject;
    }
}