org.apache.mina.proxy.event.IoSessionEvent Maven / Gradle / Ivy
/**
* Copyright 2007-2015, Kaazing Corporation. All rights reserved.
*
* Licensed 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.proxy.event;
import org.apache.mina.core.filterchain.IoFilter.NextFilter;
import org.apache.mina.core.session.IdleStatus;
import org.apache.mina.core.session.IoSession;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* IoSessionEvent.java - Wrapper Class for enqueued events.
*
* @author Apache MINA Project
* @since MINA 2.0.0-M3
*/
public class IoSessionEvent {
private final static Logger logger = LoggerFactory
.getLogger(IoSessionEvent.class);
/**
* The next filter in the chain.
*/
private final NextFilter nextFilter;
/**
* The session.
*/
private final IoSession session;
/**
* The event type.
*/
private final IoSessionEventType type;
/**
* The idle status if type value is {@link IoSessionEventType#IDLE},
* null otherwise.
*/
private IdleStatus status;
/**
* Creates an instance of this class when event type differs from
* {@link IoSessionEventType#IDLE}.
*
* @param nextFilter the next filter
* @param session the session
* @param type the event type
*/
public IoSessionEvent(final NextFilter nextFilter, final IoSession session,
final IoSessionEventType type) {
this.nextFilter = nextFilter;
this.session = session;
this.type = type;
}
/**
* Creates an instance of this class when event type is
* {@link IoSessionEventType#IDLE}.
*
* @param nextFilter the next filter
* @param session the session
* @param status the idle status
*/
public IoSessionEvent(final NextFilter nextFilter, final IoSession session,
final IdleStatus status) {
this(nextFilter, session, IoSessionEventType.IDLE);
this.status = status;
}
/**
* Delivers this event to the next filter.
*/
public void deliverEvent() {
logger.debug("Delivering event {}", this);
deliverEvent(this.nextFilter, this.session, this.type, this.status);
}
/**
* Static method which effectively delivers the specified event to the next filter
* nextFilter
on the session
.
*
* @param nextFilter the next filter
* @param session the session on which the event occured
* @param type the event type
* @param status the idle status should only be non null only if the event type is
* {@link IoSessionEventType#IDLE}
*/
private static void deliverEvent(final NextFilter nextFilter,
final IoSession session, final IoSessionEventType type,
final IdleStatus status) {
switch (type) {
case CREATED:
nextFilter.sessionCreated(session);
break;
case OPENED:
nextFilter.sessionOpened(session);
break;
case IDLE:
nextFilter.sessionIdle(session, status);
break;
case CLOSED:
nextFilter.sessionClosed(session);
break;
}
}
/**
* {@inheritDoc}
*/
@Override
public String toString() {
StringBuilder sb = new StringBuilder(IoSessionEvent.class
.getSimpleName());
sb.append('@');
sb.append(Integer.toHexString(hashCode()));
sb.append(" - [ ").append(session);
sb.append(", ").append(type);
sb.append(']');
return sb.toString();
}
/**
* Returns the idle status of the event.
*
* @return the idle status of the event
*/
public IdleStatus getStatus() {
return status;
}
/**
* Returns the next filter to which the event should be sent.
*
* @return the next filter
*/
public NextFilter getNextFilter() {
return nextFilter;
}
/**
* Returns the session on which the event occured.
*
* @return the session
*/
public IoSession getSession() {
return session;
}
/**
* Returns the event type that occured.
*
* @return the event type
*/
public IoSessionEventType getType() {
return type;
}
}