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/*
* SocketListenerManager.java February 2007
*
* Copyright (C) 2007, Niall Gallagher <niallg@users.sf.net>
*
* 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.simpleframework.transport.connect;
import java.io.Closeable;
import java.io.IOException;
import java.net.SocketAddress;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArraySet;
import javax.net.ssl.SSLContext;
import org.simpleframework.transport.SocketProcessor;
import org.simpleframework.transport.trace.TraceAnalyzer;
/**
* The <code>SocketListenerManager</code> contains all the listeners
* that have been created for a connection. This set is used to hold
* and manage the listeners that have been created for a connection.
* All listeners will be closed if the listener manager is closed.
* This ensures all resources held by the manager can be released.
*
* @author Niall Gallagher
*
* @see org.simpleframework.transport.connect.SocketConnection
*/
class SocketListenerManager implements Closeable {
/**
* This is the set of active socket listeners for this manager.
*/
private final Set<SocketListener> listeners;
/**
* This is the processor that listeners will dispatch sockets to.
*/
private final SocketProcessor processor;
/**
* This is the analyzer used to create a trace for the sockets.
*/
private final TraceAnalyzer analyzer;
/**
* Constructor for the <code>SocketListenerManager</code> object.
* This is used to create a manager that will enable listeners to
* be created to listen to specified sockets for incoming TCP
* connections, which will be converted to socket objects.
*
* @param processor this is the processor to hand sockets to
* @param analyzer this is the agent used to trace socket events
*/
public SocketListenerManager(SocketProcessor processor, TraceAnalyzer analyzer) {
this.listeners = new CopyOnWriteArraySet<SocketListener>();
this.analyzer = new SocketAnalyzer(analyzer);
this.processor = processor;
}
/**
* This creates a new background task that will listen to the
* specified <code>ServerAddress</code> for incoming TCP connect
* requests. When an connection is accepted it is handed to the
* internal socket connector.
*
* @param address this is the address used to accept connections
*
* @return this returns the actual local address that is used
*/
public SocketAddress listen(SocketAddress address) throws IOException {
return listen(address, null);
}
/**
* This creates a new background task that will listen to the
* specified <code>ServerAddress</code> for incoming TCP connect
* requests. When an connection is accepted it is handed to the
* internal socket connector.
*
* @param address this is the address used to accept connections
* @param context this is used for secure SSL connections
*
* @return this returns the actual local address that is used
*/
public SocketAddress listen(SocketAddress address, SSLContext context) throws IOException {
SocketListener listener = new SocketListener(address, processor, analyzer, context);
if(processor != null) {
listener.process();
listeners.add(listener);
}
return listener.getAddress();
}
/**
* This is used to close all the listeners that have been
* added to the connection. Closing all the listeners in the
* set ensures that there are no lingering threads or sockets
* consumed by the connection after the connection is closed.
*
* @throws IOException thrown if there is an error closing
*/
public void close() throws IOException {
for(Closeable listener : listeners) {
listener.close();
}
if(analyzer != null) {
analyzer.stop();
}
listeners.clear();
}
}
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