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/*
* $Id: GopherURLConnection.java,v 1.5 2004/07/07 21:05:27 dog Exp $
* Copyright (C) 2003 The Free Software Foundation
*
* This file is part of GNU inetlib, a library.
*
* GNU inetlib is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* GNU inetlib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* As a special exception, if you link this library with other files to
* produce an executable, this library does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* This exception does not however invalidate any other reasons why the
* executable file might be covered by the GNU General Public License.
*/
package gnu.inet.gopher;
import java.io.InputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.net.UnknownServiceException;
import java.net.URL;
import java.net.URLConnection;
/**
* A Gopher URL connection.
*
* @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>
* @version $Revision: 1.5 $ $Date: 2004/07/07 21:05:27 $
*/
public class GopherURLConnection extends URLConnection
{
/**
* The connection managing the protocol exchange.
*/
protected GopherConnection connection;
/**
* Constructs a Gopher connection to the specified URL.
* @param url the URL
*/
public GopherURLConnection (URL url)
{
super (url);
}
/**
* Establishes the connection.
*/
public void connect () throws IOException
{
if (connected)
{
return;
}
String host = url.getHost ();
int port = url.getPort ();
connection = new GopherConnection (host, port);
}
/**
* Returns an input stream that reads from this open connection.
*/
public InputStream getInputStream () throws IOException
{
if (!connected)
{
connect ();
}
String dir = url.getPath ();
String filename = url.getFile ();
if (dir == null && filename == null)
{
throw new UnsupportedOperationException ("not implemented");
}
else
{
String selector = (dir == null) ? filename :
dir + '/' + filename;
return connection.get (selector);
}
}
/**
* Returns an output stream that writes to this connection.
*/
public OutputStream getOutputStream () throws IOException
{
throw new UnknownServiceException ();
}
public Object getContent () throws IOException
{
return new GopherContentHandler ().getContent (this);
}
public Object getContent (Class[] classes) throws IOException
{
return new GopherContentHandler ().getContent (this, classes);
}
}
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