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/*
* Copyright (c) 2008, 2009, 2011, 2012 Eike Stepper (Berlin, Germany) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Eike Stepper - initial API and implementation
*/
package org.eclipse.spi.net4j;
import org.eclipse.net4j.ITransportConfig;
import org.eclipse.net4j.Net4jUtil;
import org.eclipse.net4j.connector.IConnector;
import org.eclipse.net4j.util.container.Container;
import org.eclipse.net4j.util.event.IListener;
import org.eclipse.net4j.util.lifecycle.ILifecycle;
import org.eclipse.net4j.util.lifecycle.LifecycleEventAdapter;
import org.eclipse.net4j.util.lifecycle.LifecycleUtil;
import org.eclipse.net4j.util.om.log.OMLogger;
import org.eclipse.net4j.util.om.trace.ContextTracer;
import org.eclipse.net4j.util.security.INegotiator;
import org.eclipse.internal.net4j.TransportConfig;
import org.eclipse.internal.net4j.bundle.OM;
import java.util.HashSet;
import java.util.Set;
/**
* If the meaning of this type isn't clear, there really should be more of a description here...
*
* @author Eike Stepper
* @since 2.0
*/
public abstract class Acceptor extends Container<IConnector> implements InternalAcceptor
{
private static final ContextTracer TRACER = new ContextTracer(OM.DEBUG_ACCEPTOR, Acceptor.class);
private ITransportConfig config;
private transient IListener connectorListener = new LifecycleEventAdapter()
{
@Override
protected void onDeactivated(ILifecycle lifecycle)
{
removeConnector((IConnector)lifecycle);
}
};
private Set<IConnector> acceptedConnectors = new HashSet<IConnector>(0);
public Acceptor()
{
}
public synchronized ITransportConfig getConfig()
{
if (config == null)
{
config = new TransportConfig(this);
}
return config;
}
public synchronized void setConfig(ITransportConfig config)
{
this.config = Net4jUtil.copyTransportConfig(this, config);
}
public INegotiator getNegotiator()
{
return getConfig().getNegotiator();
}
public void setNegotiator(INegotiator negotiator)
{
getConfig().setNegotiator(negotiator);
}
public IConnector[] getAcceptedConnectors()
{
synchronized (acceptedConnectors)
{
return acceptedConnectors.toArray(new IConnector[acceptedConnectors.size()]);
}
}
@Override
public boolean isEmpty()
{
return acceptedConnectors.isEmpty();
}
public IConnector[] getElements()
{
return getAcceptedConnectors();
}
public void prepareConnector(InternalConnector connector)
{
connector.setConfig(getConfig());
}
public void addConnector(InternalConnector connector)
{
synchronized (acceptedConnectors)
{
acceptedConnectors.add(connector);
}
connector.addListener(connectorListener);
if (TRACER.isEnabled())
{
TRACER.trace("Added connector " + connector); //$NON-NLS-1$
}
fireElementAddedEvent(connector);
}
public void removeConnector(IConnector connector)
{
connector.removeListener(connectorListener);
synchronized (acceptedConnectors)
{
acceptedConnectors.remove(connector);
}
if (TRACER.isEnabled())
{
TRACER.trace("Removed connector " + connector); //$NON-NLS-1$
}
fireElementRemovedEvent(connector);
}
public void close()
{
LifecycleUtil.deactivate(this, OMLogger.Level.DEBUG);
}
public boolean isClosed()
{
return !isActive();
}
@Override
protected void doBeforeActivate() throws Exception
{
super.doBeforeActivate();
if (getConfig().getBufferProvider() == null)
{
throw new IllegalStateException("getConfig().getBufferProvider() == null"); //$NON-NLS-1$
}
}
@Override
protected void doDeactivate() throws Exception
{
for (IConnector connector : getAcceptedConnectors())
{
connector.close();
}
super.doDeactivate();
}
}
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