Util for Http Get : Http Connection « Network « Android

1. Android
2. Network
3. Http Connection

Util for Http Get

    

//package name.nanek.vidaccessor.android;

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

import org.apache.http.Header;
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.methods.HttpRequestBase;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.protocol.HTTP;
import org.json.JSONObject;

import android.util.Log;

class HttpUtil {
  /**
   * This is the developer key for accessing the YouTube data API. 
   * See details here to get one: 
   * http://code.google.com/apis/youtube/2.0/developers_guide_protocol.html#Developer_Key 
   * Then paste it in as the value of this String constant.
   */
  public static final String YOUTUBE_API_DEVELOPER_KEY = "INSERT_YOUR_DEV_KEY_HERE";
  
  private static final String LOG = HttpUtil.class.getSimpleName();

    public static String getStringResult(String url, List<NameValuePair> postData) {
      
      Log.e(LOG, "Contacting URL: " + url);
      
    try {
      DefaultHttpClient client = new DefaultHttpClient();
      HttpRequestBase request;
      if ( null == postData ) {
        request = new HttpGet(url);
      } else {
        HttpPost postRequest = new HttpPost(url);
        //StringEntity se = new StringEntity(postData);
        UrlEncodedFormEntity se = new UrlEncodedFormEntity(postData, HTTP.UTF_8);
        postRequest.setEntity(se);
        request = postRequest;
      }
      request.setHeader("Accept", "application/json");
      request.setHeader("Content-type", "application/json");
      request.setHeader("Accept-Encoding", "gzip");

      HttpResponse response = (HttpResponse) client.execute(request);

      HttpEntity entity = response.getEntity();
      if (entity != null) {
        InputStream instream = entity.getContent();
        Header contentEncoding = response.getFirstHeader("Content-Encoding");
        if (contentEncoding != null && contentEncoding.getValue().equalsIgnoreCase("gzip")) {
          instream = new GZIPInputStream(instream);
        }
        String resultString = convertStreamToString(instream);
        instream.close();
        return resultString;
      }

    } catch (Exception e) {
      Log.e(LOG, "Error getting results.", e);
    }
    return null;
      
      
    }
    
    public static JSONObject getJSONResults(String url) {
      
    try {
        String resultString = getStringResult(url, null);  
      
        Log.i(LOG, "results = " + resultString);
        //Remove wrapping []
        //resultString = resultString.substring(1, resultString.length() - 1);

        JSONObject jsonObjRecv = new JSONObject(resultString);

        return jsonObjRecv;

    } catch (Exception e) {
      Log.e(LOG, "Error getting results.", e);
    }
    return null;
      
      
    }

  private static String convertStreamToString(InputStream is) {
    BufferedReader reader = new BufferedReader(new InputStreamReader(is));
    StringBuilder sb = new StringBuilder();
    String line = null;
    try {
      while ((line = reader.readLine()) != null) {
        sb.append(line + "\n");
      }
    } catch (IOException e) {
      e.printStackTrace();
    } finally {
      try {
        is.close();
      } catch (IOException e) {
        e.printStackTrace();
      }
    }
    return sb.toString();
  }
}

   
    
    
    
  

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