mercury-1.0.0-alpha-2/mercury-transport/mercury-transport-http/src/main/java/org/apache/maven/mercury/spi/http/client/FileExchange.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file                                                                                            
 * to you 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.maven.mercury.spi.http.client;

import java.io.File;
import java.net.URL;

import org.apache.maven.mercury.transport.api.Binding;
import org.apache.maven.mercury.transport.api.Server;
import org.mortbay.io.Buffer;
import org.mortbay.jetty.client.HttpClient;
import org.mortbay.jetty.client.HttpExchange;

/**
 * FileExchange
 * <p/>
 * Base class for asynchronously PUTting or GETting a file.
 */
public abstract class FileExchange extends HttpExchange
{

   

    public static final String __BATCH_HEADER = "Jetty-Batch-Id";
    public static final String __BATCH_SUPPORTED_HEADER = "Jetty-Batch-Supported";
    public static final String __BATCH_COMMIT_HEADER = "Jetty-Batch-Commit";
    public static final String __BATCH_DISCARD_HEADER = "Jetty-Batch-Discard";


    protected HttpClient _httpClient;
    protected int _status;
    protected String _url;
    protected File _localFile;
    protected Binding _binding;
    protected Server _server;

    public abstract void onFileComplete( String url, File localFile );

    public abstract void onFileError( String url, Exception e );


    public FileExchange( Server server, Binding binding, File localFile, HttpClient client )
    {
        _server = server;
        _binding = binding;
        if (_binding != null)
        {
            URL url = binding.getRemoteResource();
            if (url != null)
                _url = url.toString();
        }

        _localFile = localFile;
        _httpClient = client;
        setURL( _url );
    }

    public void send()
    {
        try
        {
            SecureSender.send(_server, _httpClient, this);
        }
        catch ( Exception e )
        {
            onFileError( _url, e );
        }
    }

    protected void onResponseStatus( Buffer version, int status, Buffer reason )
    {
        _status = status;
    }

    protected void onException( Throwable ex )
    {
        onFileError( _url, new Exception( ex ) );
    }

    protected void onExpire()
    {
        onFileError( _url, new Exception( "Timeout occurred" ) );
    }
    
    protected void onConnectionFailed(Throwable ex)
    {
        onFileError(_url, new Exception(ex));
    }
    
}