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* Licensed to the Apache Software Foundation (ASF) under one *
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* 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 *
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package org.apache.james.protocols.pop3.core;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.apache.james.protocols.api.CommandHandler;
import org.apache.james.protocols.api.Request;
import org.apache.james.protocols.api.Response;
import org.apache.james.protocols.pop3.POP3Response;
import org.apache.james.protocols.pop3.POP3Session;
/**
* Handles NOOP command
*/
public class NoopCmdHandler implements CommandHandler<POP3Session> {
private final static String COMMAND_NAME = "NOOP";
/**
* Handler method called upon receipt of a NOOP command.
* Like all good NOOPs, does nothing much.
*
*/
public Response onCommand(POP3Session session, Request request) {
POP3Response response = null;
if (session.getHandlerState() == POP3Session.TRANSACTION) {
response = new POP3Response(POP3Response.OK_RESPONSE);
} else {
response = new POP3Response(POP3Response.ERR_RESPONSE);
}
return response;
}
/*
* (non-Javadoc)
* @see org.apache.james.protocols.api.CommandHandler#getImplCommands()
*/
public Collection<String> getImplCommands() {
List<String> commands = new ArrayList<String>();
commands.add(COMMAND_NAME);
return commands;
}
}