/*
* $Id$
*
* Copyright (C) 2003-2015 JNode.org
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; If not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package org.jnode.protocol.nfs;
import java.io.IOException;
import java.net.InetAddress;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLStreamHandler;
import org.acplt.oncrpc.OncRpcException;
import org.acplt.oncrpc.OncRpcPortmapClient;
import org.acplt.oncrpc.OncRpcProtocols;
import org.acplt.oncrpc.OncRpcServerIdent;
import org.jnode.protocol.nfs.nfs2.NFS2URLConnection;
/**
* @author Andrei Dore
*/
public class Handler extends URLStreamHandler {
/**
* @see java.net.URLStreamHandler#openConnection(java.net.URL)
*/
protected URLConnection openConnection(URL url) throws IOException {
OncRpcPortmapClient client = null;
int version = 0;
try {
client = new OncRpcPortmapClient(
InetAddress.getByName(url.getHost()), OncRpcProtocols.ONCRPC_TCP);
OncRpcServerIdent[] servers = client.listServers();
for (OncRpcServerIdent server : servers) {
if (server.program == 100003 && server.version > version) {
version = server.version;
}
}
} catch (OncRpcException e) {
throw new IOException(e);
} finally {
if (client != null) {
try {
client.close();
} catch (Exception e) {
// ignore
}
}
}
switch (version) {
case 2:
case 3:
case 4:
return new NFS2URLConnection(url);
default:
throw new IOException("The host " + url.getHost() + " doesn't have a nfs service.");
}
}
}