/*
* 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.transport.vmpipe.support;
import java.net.SocketAddress;
import org.apache.mina.common.IoFilterChain;
import org.apache.mina.common.IoHandler;
import org.apache.mina.common.IoService;
import org.apache.mina.common.IoServiceConfig;
import org.apache.mina.common.IoSession;
import org.apache.mina.common.IoSessionConfig;
import org.apache.mina.common.TransportType;
import org.apache.mina.common.IoFilter.WriteRequest;
import org.apache.mina.common.support.BaseIoSession;
import org.apache.mina.common.support.BaseIoSessionConfig;
import org.apache.mina.common.support.IoServiceListenerSupport;
import org.apache.mina.util.Queue;
import edu.emory.mathcs.backport.java.util.concurrent.locks.Lock;
import edu.emory.mathcs.backport.java.util.concurrent.locks.ReentrantLock;
/**
* A {@link IoSession} for in-VM transport (VM_PIPE).
*
* @author The Apache Directory Project (mina-dev@directory.apache.org)
* @version $Rev: 575603 $, $Date: 2007-09-14 19:04:45 +0900 (금, 14 9월 2007) $
*/
public class VmPipeSessionImpl extends BaseIoSession {
private static final IoSessionConfig CONFIG = new BaseIoSessionConfig() {
};
private final IoService service;
private final IoServiceConfig serviceConfig;
private final IoServiceListenerSupport serviceListeners;
private final SocketAddress localAddress;
private final SocketAddress remoteAddress;
private final SocketAddress serviceAddress;
private final IoHandler handler;
private final VmPipeFilterChain filterChain;
private final VmPipeSessionImpl remoteSession;
private final Lock lock;
final Queue pendingDataQueue;
/**
* Constructor for client-side session.
*/
public VmPipeSessionImpl(IoService service, IoServiceConfig serviceConfig,
IoServiceListenerSupport serviceListeners,
SocketAddress localAddress, IoHandler handler, VmPipe remoteEntry) {
this.service = service;
this.serviceConfig = serviceConfig;
this.serviceListeners = serviceListeners;
this.lock = new ReentrantLock();
this.localAddress = localAddress;
this.remoteAddress = this.serviceAddress = remoteEntry.getAddress();
this.handler = handler;
this.filterChain = new VmPipeFilterChain(this);
this.pendingDataQueue = new Queue();
remoteSession = new VmPipeSessionImpl(this, remoteEntry);
}
/**
* Constructor for server-side session.
*/
private VmPipeSessionImpl(VmPipeSessionImpl remoteSession, VmPipe entry) {
this.service = entry.getAcceptor();
this.serviceConfig = entry.getConfig();
this.serviceListeners = entry.getListeners();
this.lock = remoteSession.lock;
this.localAddress = this.serviceAddress = remoteSession.remoteAddress;
this.remoteAddress = remoteSession.localAddress;
this.handler = entry.getHandler();
this.filterChain = new VmPipeFilterChain(this);
this.remoteSession = remoteSession;
this.pendingDataQueue = new Queue();
}
public IoService getService() {
return service;
}
IoServiceListenerSupport getServiceListeners() {
return serviceListeners;
}
public IoServiceConfig getServiceConfig() {
return serviceConfig;
}
public IoSessionConfig getConfig() {
return CONFIG;
}
public IoFilterChain getFilterChain() {
return filterChain;
}
public VmPipeSessionImpl getRemoteSession() {
return remoteSession;
}
public IoHandler getHandler() {
return handler;
}
protected void close0() {
filterChain.fireFilterClose(this);
}
protected void write0(WriteRequest writeRequest) {
this.filterChain.fireFilterWrite(this, writeRequest);
}
public TransportType getTransportType() {
return TransportType.VM_PIPE;
}
public SocketAddress getRemoteAddress() {
return remoteAddress;
}
public SocketAddress getLocalAddress() {
return localAddress;
}
public SocketAddress getServiceAddress() {
return serviceAddress;
}
protected void updateTrafficMask() {
if (getTrafficMask().isReadable() || getTrafficMask().isWritable()) {
Object[] data;
synchronized (pendingDataQueue) {
data = pendingDataQueue.toArray();
pendingDataQueue.clear();
}
for (int i = 0; i < data.length; i++) {
if (data[i] instanceof WriteRequest) {
// TODO Optimize unefficient data transfer.
// Data will be returned to pendingDataQueue
// if getTraffic().isWritable() is false.
WriteRequest wr = (WriteRequest) data[i];
filterChain.doWrite(this, wr);
} else {
// TODO Optimize unefficient data transfer.
// Data will be returned to pendingDataQueue
// if getTraffic().isReadable() is false.
filterChain.fireMessageReceived(this, data[i]);
}
}
}
}
Lock getLock() {
return lock;
}
}