/*
* JBoss, Home of Professional Open Source.
* Copyright 2012, 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.infinispan.server.jgroups.spi.service;
import org.infinispan.server.commons.service.Builder;
import org.infinispan.server.jgroups.spi.ChannelFactory;
import org.jboss.logging.Logger;
import org.jboss.msc.service.Service;
import org.jboss.msc.service.ServiceBuilder;
import org.jboss.msc.service.ServiceController;
import org.jboss.msc.service.ServiceName;
import org.jboss.msc.service.ServiceTarget;
import org.jboss.msc.service.StartContext;
import org.jboss.msc.service.StartException;
import org.jboss.msc.service.StopContext;
import org.jboss.msc.value.InjectedValue;
import org.jgroups.JChannel;
/**
* Provides a channel for use by dependent services.
* Channels produced by this service are unconnected.
* @author Paul Ferraro
*/
public class ChannelBuilder implements Service<JChannel>, Builder<JChannel> {
private static final Logger LOGGER = org.jboss.logging.Logger.getLogger(ChannelConnectorBuilder.class);
private InjectedValue<ChannelFactory> factory = new InjectedValue<>();
private final String name;
private volatile JChannel channel;
public ChannelBuilder(String name) {
this.name = name;
}
@Override
public ServiceName getServiceName() {
return ChannelServiceName.CHANNEL.getServiceName(this.name);
}
@Override
public ServiceBuilder<JChannel> build(ServiceTarget target) {
return target.addService(this.getServiceName(), this)
.addDependency(ChannelServiceName.FACTORY.getServiceName(this.name), ChannelFactory.class, this.factory)
.setInitialMode(ServiceController.Mode.ON_DEMAND)
;
}
@Override
public JChannel getValue() {
return this.channel;
}
@Override
public void start(StartContext context) throws StartException {
try {
this.channel = this.factory.getValue().createChannel(this.name);
} catch (Exception e) {
throw new StartException(e);
}
if (LOGGER.isTraceEnabled()) {
String output = this.channel.getProtocolStack().printProtocolSpec(true);
LOGGER.tracef("JGroups channel %s created with configuration:\n %s", this.name, output);
}
}
@Override
public void stop(StopContext context) {
this.channel.close();
this.channel = null;
}
}