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/***************************************************************************
* Copyright (c) 2004, 2005, 2006 Eike Stepper, Germany.
* 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.emf.cdo.server.protocol;
import org.eclipse.net4j.signal.Request;
import org.eclipse.net4j.signal.SignalReactor;
import org.eclipse.net4j.transport.Channel;
import org.eclipse.net4j.transport.Protocol;
import org.eclipse.net4j.transport.ProtocolFactory;
import org.eclipse.net4j.transport.Connector.Type;
import org.eclipse.net4j.util.Net4jUtil;
import org.eclipse.emf.cdo.core.CDOProtocol;
import org.eclipse.emf.cdo.core.ImplementationError;
import org.eclipse.emf.cdo.core.protocol.AbstractCDOProtocol;
import org.eclipse.emf.cdo.server.Mapper;
import org.eclipse.emf.cdo.server.ServerCDOProtocol;
import org.eclipse.emf.cdo.server.ServerCDOResProtocol;
import org.eclipse.emf.cdo.server.ServerCDOResProtocol.Listener;
import org.eclipse.emf.cdo.server.internal.CDOServer;
import org.eclipse.internal.net4j.transport.AbstractProtocolFactory;
import org.springframework.transaction.support.TransactionTemplate;
import java.util.Collection;
import java.util.Set;
/**
* @author Eike Stepper
*/
public class ServerCDOProtocolImpl extends AbstractCDOProtocol implements ServerCDOProtocol,
Listener
{
protected Mapper mapper;
protected TransactionTemplate transactionTemplate;
protected ServerCDOResProtocol serverCDOResProtocol;
public ServerCDOProtocolImpl(Channel channel)
{
super(channel);
}
@Override
protected SignalReactor createSignalReactor(short signalID)
{
switch (signalID)
{
case ANNOUNCE_PACKAGE:
return new AnnouncePackageIndication(mapper);
case DESCRIBE_PACKAGE:
return new DescribePackageIndication(mapper);
case RESOURCE_RID:
return new ResourceRIDIndication(mapper);
case RESOURCE_PATH:
return new ResourcePathIndication(mapper);
case LOAD_RESOURCE:
return new LoadResourceIndication(mapper);
case LOAD_OBJECT:
return new LoadObjectIndication(mapper);
case COMMIT_TRANSACTION:
return new CommitTransactionIndication(mapper, transactionTemplate);
case QUERY_EXTENT:
return new QueryExtentIndication(mapper);
case QUERY_XREFS:
return new QueryXRefsIndication(mapper);
default:
throw new ImplementationError("Invalid " + CDOProtocol.PROTOCOL_NAME + " signalID: "
+ signalID);
}
}
public Mapper getMapper()
{
return mapper;
}
public void setMapper(Mapper mapper)
{
this.mapper = mapper;
}
public TransactionTemplate getTransactionTemplate()
{
return transactionTemplate;
}
public void setTransactionTemplate(TransactionTemplate transactionTemplate)
{
this.transactionTemplate = transactionTemplate;
}
public ServerCDOResProtocol getServerCDOResProtocol()
{
return serverCDOResProtocol;
}
public void setServerCDOResProtocol(ServerCDOResProtocol serverCDOResProtocol)
{
this.serverCDOResProtocol = serverCDOResProtocol;
}
public void notifyRemoval(ServerCDOResProtocol protocol, Collection<Integer> rids)
{
fireRemovalNotification(rids);
}
public void notifyInvalidation(ServerCDOResProtocol protocol, Collection<Long> modifiedOIDs)
{
fireInvalidationNotification(null, modifiedOIDs);
}
public void fireRemovalNotification(Collection<Integer> rids)
{
for (Channel channel : getCDOServerChannels())
{
try
{
Request signal = new RemovalNotificationRequest(channel, rids);
signal.send();
}
catch (Exception ex)
{
CDOServer.LOG.error("Error while transmitting removal notifications for rids " + rids, ex);
}
}
}
public void fireInvalidationNotification(Channel initiator, Collection<Long> changedObjectIds)
{
for (Channel channel : getCDOServerChannels())
{
if (initiator == null || channel != initiator
&& channel.getConnector().getType() == initiator.getConnector().getType())
{
try
{
Request signal = new InvalidationNotificationRequest(channel, changedObjectIds);
signal.send();
}
catch (Exception ex)
{
CDOServer.LOG.error("Error while transmitting invalidation notifications for oids "
+ changedObjectIds, ex);
}
}
}
}
protected Collection<Channel> getCDOServerChannels()
{
return Net4jUtil.getChannels(getProtocolID(), ProtocolFactory.FOR_SERVERS);
}
@Override
protected void onAboutToActivate() throws Exception
{
super.onAboutToActivate();
if (mapper == null)
{
throw new IllegalStateException("mapper == null");
}
if (transactionTemplate == null)
{
throw new IllegalStateException("transactionTemplate == null");
}
}
@Override
protected void onActivate() throws Exception
{
super.onActivate();
if (serverCDOResProtocol != null)
{
serverCDOResProtocol.addListener(this);
}
}
@Override
protected void onDeactivate() throws Exception
{
if (serverCDOResProtocol != null)
{
serverCDOResProtocol.removeListener(this);
serverCDOResProtocol = null;
}
mapper = null;
transactionTemplate = null;
super.onDeactivate();
}
/**
* @author Eike Stepper
*/
public static final class Factory extends AbstractProtocolFactory
{
private Mapper mapper;
private TransactionTemplate transactionTemplate;
public Factory(Mapper mapper, TransactionTemplate transactionTemplate)
{
this.mapper = mapper;
this.transactionTemplate = transactionTemplate;
}
public Protocol createProtocol(Channel channel, Object protocolData)
{
try
{
ServerCDOProtocolImpl protocol = new ServerCDOProtocolImpl(channel);
protocol.setMapper(mapper);
protocol.setTransactionTemplate(transactionTemplate);
protocol.activate();
return protocol;
}
catch (Exception ex)
{
CDOServer.LOG.error(ex);
return null;
}
}
public Set<Type> getConnectorTypes()
{
return ProtocolFactory.FOR_SERVERS;
}
public String getID()
{
return PROTOCOL_NAME;
}
}
}
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