/*
* Copyright 2004-2005 the original author or authors.
*
* 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 net.sf.jml.protocol.incoming;
import java.util.ArrayList;
import java.util.List;
import net.sf.jml.MsnProtocol;
import net.sf.jml.exception.UnsupportedProtocolException;
import net.sf.jml.impl.BasicMessenger;
import net.sf.jml.protocol.MsnIncomingMessage;
import net.sf.jml.protocol.MsnSession;
import net.sf.jml.protocol.outgoing.OutgoingVER;
/**
* The response of OutgoingVER, indicate the protocol that
* server supported.
* <p>
* Supported Protocol: All
* <p>
* Syntax: VER trId supportedProtocol1 supportedProtocol2...
*
* @author Roger Chen
*/
public class IncomingVER extends MsnIncomingMessage {
public IncomingVER(MsnProtocol protocl) {
super(protocl);
}
public MsnProtocol[] getSupportedProtocol() {
final List<MsnProtocol> protocols = new ArrayList<MsnProtocol>();
for (int i = 0; i < getParamCount(); i++) {
final MsnProtocol protocol = MsnProtocol.parseStr(getParam(i));
if (protocol != null) {
protocols.add(protocol);
}
}
return protocols.toArray(new MsnProtocol[protocols.size()]);
}
@Override
protected void messageReceived(MsnSession session) {
super.messageReceived(session);
MsnProtocol[] supportedProtocol = getSupportedProtocol();
if (supportedProtocol.length > 0) {
session.getMessenger().setSupportedProtocol(supportedProtocol);
((BasicMessenger) session.getMessenger())
.setActualMsnProtocol(supportedProtocol[0]);
} else {
throw new UnsupportedProtocolException(
((OutgoingVER) getOutgoingMessage()).getSupportedProtocol());
}
}
}