org.apache.mina.core.session.IoEvent 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.session;
import org.apache.mina.core.write.WriteRequest;
import org.apache.mina.filter.FilterEvent;
/**
* An I/O event or an I/O request that MINA provides.
* Most users won't need to use this class. It is usually used by internal
* components to store I/O events.
*
* @author Apache MINA Project
*/
public class IoEvent implements Runnable {
/** The IoEvent type */
private final IoEventType type;
/** The associated IoSession */
private final IoSession session;
/** The stored parameter */
private final Object parameter;
/**
* Creates a new IoEvent
*
* @param type The type of event to create
* @param session The associated IoSession
* @param parameter The parameter to add to the event
*/
public IoEvent(IoEventType type, IoSession session, Object parameter) {
if (type == null) {
throw new IllegalArgumentException("type");
}
if (session == null) {
throw new IllegalArgumentException("session");
}
this.type = type;
this.session = session;
this.parameter = parameter;
}
/**
* @return The IoEvent type
*/
public IoEventType getType() {
return type;
}
/**
* @return The associated IoSession
*/
public IoSession getSession() {
return session;
}
/**
* @return The stored parameter
*/
public Object getParameter() {
return parameter;
}
/**
* {@inheritDoc}
*/
@Override
public void run() {
fire();
}
/**
* Fire an event
*/
public void fire() {
switch ( type ) {
case CLOSE:
session.getFilterChain().fireFilterClose();
break;
case EVENT:
session.getFilterChain().fireEvent((FilterEvent)getParameter());
break;
case EXCEPTION_CAUGHT:
session.getFilterChain().fireExceptionCaught((Throwable) getParameter());
break;
case INPUT_CLOSED:
session.getFilterChain().fireInputClosed();
break;
case MESSAGE_RECEIVED:
session.getFilterChain().fireMessageReceived(getParameter());
break;
case MESSAGE_SENT:
session.getFilterChain().fireMessageSent((WriteRequest) getParameter());
break;
case SESSION_CLOSED:
session.getFilterChain().fireSessionClosed();
break;
case SESSION_CREATED:
session.getFilterChain().fireSessionCreated();
break;
case SESSION_IDLE:
session.getFilterChain().fireSessionIdle((IdleStatus) getParameter());
break;
case SESSION_OPENED:
session.getFilterChain().fireSessionOpened();
break;
case WRITE:
session.getFilterChain().fireFilterWrite((WriteRequest) getParameter());
break;
default:
throw new IllegalArgumentException("Unknown event type: " + getType());
}
}
/**
* @see Object#toString()
*/
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append('[');
sb.append(session);
sb.append(']');
sb.append(type.name());
if (parameter != null) {
sb.append(':');
sb.append(parameter);
}
return sb.toString();
}
}