Android Open Source - watchme Http Retriever

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Back to project page watchme.

License

The source code is released under:

Copyright (c) 2012 Johan Brook, Robin Andersson, Lisa Stenberg, Mattias Henriksson Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documen...

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Java Source Code

/**
 *  HttpRetriever.java/*from w  w  w .j a  v a  2  s. c  o m*/
 *
 *  Class responsible for sending simple GET HTTP request
 *  to a URL and return the result as a String.
 *
 *  @author Johan
 *  @copyright (c) 2012 Johan Brook, Robin Andersson, Lisa Stenberg, Mattias Henriksson
 *  @license MIT
 */

package se.chalmers.watchme.net;

import java.io.IOException;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;

import android.util.Log;

public class HttpRetriever {

  // Create a new HTTP client from the Apache library
  private DefaultHttpClient client = new DefaultHttpClient();

  /**
   * Send a GET request to a URL.
   * 
   * <p>
   * The <code>url</code> parameter must be well formatted, as no validations
   * are made in this method.
   * </p>
   * 
   * @param url
   *            The url
   * @return String with the response on success, otherwise null
   * @throws {@link IOException} if the HTTP connection failed
   * @throws NoEntityException
   *             if no HttpEntity was available in the response
   */
  public String get(String url) throws IOException, NoEntityException {

    HttpGet request = new HttpGet(url);

    HttpResponse res = this.client.execute(request);
    final int statusCode = res.getStatusLine().getStatusCode();

    Log.i("Custom", "Retrieving " + url + ", status: " + statusCode);

    // Return null if the status code isn't 200 OK
    if (statusCode != HttpStatus.SC_OK) {
      return null;
    }

    HttpEntity entity = res.getEntity();

    // Return a stringified version of the response
    if (entity != null) {
      return EntityUtils.toString(entity);
    } else {
      throw new NoEntityException("No entity from " + url);
    }
  }

}

Java Source Code List