org.apache.mina.core.service.IoHandlerAdapter Maven / Gradle / Ivy
/*
* 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.mina.core.service;
import org.apache.mina.core.session.IdleStatus;
import org.apache.mina.core.session.IoSession;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* An adapter class for {@link IoHandler}. You can extend this
* class and selectively override required event handler methods only. All
* methods do nothing by default.
*
* @author Apache MINA Project
*/
public class IoHandlerAdapter implements IoHandler {
private static final Logger LOGGER = LoggerFactory.getLogger(IoHandlerAdapter.class);
/**
* {@inheritDoc}
*/
@Override
public void sessionCreated(IoSession session) throws Exception {
// Empty handler
}
/**
* {@inheritDoc}
*/
@Override
public void sessionOpened(IoSession session) throws Exception {
// Empty handler
}
/**
* {@inheritDoc}
*/
@Override
public void sessionClosed(IoSession session) throws Exception {
// Empty handler
}
/**
* {@inheritDoc}
*/
@Override
public void sessionIdle(IoSession session, IdleStatus status) throws Exception {
// Empty handler
}
/**
* {@inheritDoc}
*/
@Override
public void exceptionCaught(IoSession session, Throwable cause) throws Exception {
if (LOGGER.isWarnEnabled()) {
LOGGER.warn("EXCEPTION, please implement " + getClass().getName()
+ ".exceptionCaught() for proper handling:", cause);
}
}
/**
* {@inheritDoc}
*/
@Override
public void messageReceived(IoSession session, Object message) throws Exception {
// Empty handler
}
/**
* {@inheritDoc}
*/
@Override
public void messageSent(IoSession session, Object message) throws Exception {
// Empty handler
}
/**
* {@inheritDoc}
*/
@Override
public void inputClosed(IoSession session) throws Exception {
session.closeNow();
}
}