/*
* JBoss, Home of Professional Open Source.
* Copyright 2014, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.clustering.jgroups;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.jboss.as.clustering.jgroups.logging.JGroupsLogger;
import org.jboss.as.server.ServerEnvironment;
import org.jboss.modules.ModuleLoader;
import org.jgroups.Channel;
import org.jgroups.fork.ForkChannel;
import org.jgroups.stack.Configurator;
import org.jgroups.stack.Protocol;
import org.jgroups.stack.ProtocolStack;
/**
* Factory for creating forked channels.
* @author Paul Ferraro
*/
public class ForkChannelFactory implements ChannelFactory {
private final ProtocolStackConfiguration parentStack;
private final List<ProtocolConfiguration> protocols;
private final Channel channel;
public ForkChannelFactory(Channel channel, ProtocolStackConfiguration parentStack, List<ProtocolConfiguration> protocols) {
this.channel = channel;
this.parentStack = parentStack;
this.protocols = protocols;
}
public ForkChannelFactory(Channel channel, ProtocolStackConfiguration parentStack, ProtocolConfiguration... protocols) {
this(channel, parentStack, Arrays.asList(protocols));
}
@Override
public Channel createChannel(String id) throws Exception {
JGroupsLogger.ROOT_LOGGER.debugf("Creating fork channel %s from channel %s", id, this.channel.getClusterName());
String stackName = this.protocols.isEmpty() ? this.channel.getClusterName() : id;
ProtocolStackConfiguration forkStack = new ForkProtocolStackConfiguration(stackName, this.parentStack, this.protocols);
List<Protocol> protocols = Configurator.createProtocols(JChannelFactory.createProtocols(forkStack, this.channel.getProtocolStack().getTransport().isMulticastCapable()), new ProtocolStack());
return new ForkChannel(this.channel, stackName, id, protocols.toArray(new Protocol[protocols.size()]));
}
@Override
public ProtocolStackConfiguration getProtocolStackConfiguration() {
List<ProtocolConfiguration> parentProtocols = this.parentStack.getProtocols();
List<ProtocolConfiguration> protocols = new ArrayList<>(parentProtocols.size() + this.protocols.size());
protocols.addAll(parentProtocols);
protocols.addAll(this.protocols);
return new ForkProtocolStackConfiguration(this.channel.getClusterName(), this.parentStack, protocols);
}
private static class ForkProtocolStackConfiguration implements ProtocolStackConfiguration {
private final String name;
private final List<ProtocolConfiguration> protocols;
private final ProtocolStackConfiguration parentStack;
ForkProtocolStackConfiguration(String name, ProtocolStackConfiguration parentStack, List<ProtocolConfiguration> protocols) {
this.name = name;
this.protocols = protocols;
this.parentStack = parentStack;
}
@Override
public String getName() {
return this.name;
}
@Override
public List<ProtocolConfiguration> getProtocols() {
return this.protocols;
}
@Override
public ProtocolDefaults getDefaults() {
return this.parentStack.getDefaults();
}
@Override
public TransportConfiguration getTransport() {
return this.parentStack.getTransport();
}
@Override
public ModuleLoader getModuleLoader() {
return this.parentStack.getModuleLoader();
}
@Override
public ServerEnvironment getEnvironment() {
return this.parentStack.getEnvironment();
}
@Override
public RelayConfiguration getRelay() {
return this.parentStack.getRelay();
}
}
}