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* 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.james.protocols.smtp.core;
import java.util.ArrayList;
import java.util.Collection;
import org.apache.james.protocols.api.Request;
import org.apache.james.protocols.api.Response;
import org.apache.james.protocols.api.handler.CommandHandler;
import org.apache.james.protocols.smtp.SMTPResponse;
import org.apache.james.protocols.smtp.SMTPRetCode;
import org.apache.james.protocols.smtp.SMTPSession;
import org.apache.james.protocols.smtp.dsn.DSNStatus;
/**
* Handles NOOP command
*/
public class NoopCmdHandler implements CommandHandler<SMTPSession> {
/**
* The name of the command handled by the command handler
*/
private final static String COMMAND_NAME = "NOOP";
/**
* Handler method called upon receipt of a NOOP command.
* Just sends back an OK and logs the command.
*
*/
public Response onCommand(SMTPSession session, Request request) {
return new SMTPResponse(SMTPRetCode.MAIL_OK, DSNStatus.getStatus(DSNStatus.SUCCESS,DSNStatus.UNDEFINED_STATUS)+" OK");
}
/**
* @see org.apache.james.smtpserver.protocol.CommandHandler#getImplCommands()
*/
public Collection<String> getImplCommands() {
Collection<String> implCommands = new ArrayList<String>();
implCommands.add(COMMAND_NAME);
return implCommands;
}
}