/*

  * Copyright 1999,2004 The Apache Software Foundation.

  * 

  * 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 org.apache.commons.feedparser.network;

 import java.io.IOException;

 import java.io.InputStream;

 import org.apache.commons.httpclient.HttpClient;

 import org.apache.commons.httpclient.HttpMethod;

 import org.apache.commons.httpclient.methods.GetMethod;

 /**

  *

  * This is an exprimental ResourceRequest which used Jakarta HttpClient as the

  * backend.  Current its only meant for use in development as its not as

  * reliable and stable as the URLResourceRequest.

  * 

  * Most of this code isn't as functional as the URLResourceRequest including

  * correct timeout behavior, redirect limits, header and etag support, etc.

  * 

  * @author <a href="mailto:burton@openprivacy.org">Kevin A. Burton</a>

  * @version $Id: HTTPClientNetworkResource.java 373622 2006-01-30 22:53:00Z mvdb $

  */

 public class HTTPClientNetworkResource extends BaseResourceRequest implements ResourceRequest {

     public static final int TIMEOUT = 3 * 1000 * 60;

     private HttpClient client = new HttpClient();

     /**

      * 

      * Create a new <code>URLNetworkResource</code> instance.

      *

      * 

      */

     public void init() throws NetworkException {

         try { 

             client.setConnectionTimeout( TIMEOUT );

             client.setStrictMode( false );

             //client.setFollowRedirects( true );

         } catch ( Exception e ) {

             throw new NetworkException( e );

         }

     }

     /**

      * 

      *

      * 

      */

     public InputStream getInputStream() throws IOException {

         try {

             //now get the method so that we can execute it.

             HttpMethod method = new GetMethod( getResource() );

             method.setFollowRedirects( true );

             int result = client.executeMethod( method);

             if ( result >= 400 && result < 500 ) {

                 throw new NetworkException( "HTTP " + result + " - " + method.getStatusText() );

             } 

             InputStream is = new AdvancedInputStream( method.getResponseBodyAsStream(), this );

             return is;

         } catch ( Exception e ) {

             throw new NetworkException( e );

         }

     }

 }