/*
* 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.filterchain;
import org.apache.mina.core.filterchain.IoFilter.NextFilter;
import org.apache.mina.core.session.IdleStatus;
import org.apache.mina.core.session.IoEvent;
import org.apache.mina.core.session.IoEventType;
import org.apache.mina.core.session.IoSession;
import org.apache.mina.core.write.WriteRequest;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* An I/O event or an I/O request that MINA provides for {@link IoFilter}s.
* Most users won't need to use this class. It is usually used by internal
* components to store I/O events.
*
* @author <a href="http://mina.apache.org">Apache MINA Project</a>
*/
public class IoFilterEvent extends IoEvent {
/** A logger for this class */
private static Logger LOGGER = LoggerFactory.getLogger(IoFilterEvent.class);
/** A speedup for logs */
private static boolean DEBUG = LOGGER.isDebugEnabled();
private final NextFilter nextFilter;
public IoFilterEvent(NextFilter nextFilter, IoEventType type, IoSession session, Object parameter) {
super(type, session, parameter);
if (nextFilter == null) {
throw new IllegalArgumentException("nextFilter must not be null");
}
this.nextFilter = nextFilter;
}
public NextFilter getNextFilter() {
return nextFilter;
}
@Override
public void fire() {
IoSession session = getSession();
NextFilter nextFilter = getNextFilter();
IoEventType type = getType();
if (DEBUG) {
LOGGER.debug("Firing a {} event for session {}", type, session.getId());
}
switch (type) {
case MESSAGE_RECEIVED:
Object parameter = getParameter();
nextFilter.messageReceived(session, parameter);
break;
case MESSAGE_SENT:
WriteRequest writeRequest = (WriteRequest) getParameter();
nextFilter.messageSent(session, writeRequest);
break;
case WRITE:
writeRequest = (WriteRequest) getParameter();
nextFilter.filterWrite(session, writeRequest);
break;
case CLOSE:
nextFilter.filterClose(session);
break;
case EXCEPTION_CAUGHT:
Throwable throwable = (Throwable) getParameter();
nextFilter.exceptionCaught(session, throwable);
break;
case SESSION_IDLE:
nextFilter.sessionIdle(session, (IdleStatus) getParameter());
break;
case SESSION_OPENED:
nextFilter.sessionOpened(session);
break;
case SESSION_CREATED:
nextFilter.sessionCreated(session);
break;
case SESSION_CLOSED:
nextFilter.sessionClosed(session);
break;
default:
throw new IllegalArgumentException("Unknown event type: " + type);
}
if (DEBUG) {
LOGGER.debug("Event {} has been fired for session {}", type, session.getId());
}
}
}