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JChannelFactoryBuilder.java
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JChannelFactoryBuilder.java
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/*
* 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.subsystem;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
import java.util.stream.Collectors;
import org.jboss.as.clustering.controller.ResourceServiceBuilder;
import org.jboss.as.clustering.jgroups.JChannelFactory;
import org.jboss.as.clustering.jgroups.logging.JGroupsLogger;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.controller.PathAddress;
import org.jboss.as.controller.PathElement;
import org.jboss.as.controller.registry.Resource;
import org.jboss.as.server.ServerEnvironment;
import org.jboss.as.server.ServerEnvironmentService;
import org.jboss.dmr.ModelNode;
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.ValueService;
import org.jboss.msc.value.InjectedValue;
import org.jboss.msc.value.Value;
import org.jgroups.protocols.TP;
import org.jgroups.stack.Protocol;
import org.wildfly.clustering.jgroups.spi.ChannelFactory;
import org.wildfly.clustering.jgroups.spi.ProtocolConfiguration;
import org.wildfly.clustering.jgroups.spi.ProtocolStackConfiguration;
import org.wildfly.clustering.jgroups.spi.RelayConfiguration;
import org.wildfly.clustering.jgroups.spi.TransportConfiguration;
import org.wildfly.clustering.service.Builder;
import org.wildfly.clustering.service.InjectedValueDependency;
import org.wildfly.clustering.service.ValueDependency;
/**
* Builder for a service that provides a {@link ChannelFactory} for creating channels.
* @author Paul Ferraro
*/
public class JChannelFactoryBuilder implements ResourceServiceBuilder<ChannelFactory>, ProtocolStackConfiguration {
private final InjectedValue<ServerEnvironment> environment = new InjectedValue<>();
private final String name;
private final ServiceName serviceName;
private volatile boolean statisticsEnabled;
@SuppressWarnings("rawtypes")
private volatile ValueDependency<TransportConfiguration> transport = null;
@SuppressWarnings("rawtypes")
private volatile List<ValueDependency<ProtocolConfiguration>> protocols = null;
private volatile ValueDependency<RelayConfiguration> relay = null;
public JChannelFactoryBuilder(PathAddress address) {
this.name = address.getLastElement().getValue();
this.serviceName = StackResourceDefinition.Capability.JCHANNEL_FACTORY.getServiceName(address);
}
@Override
public ServiceName getServiceName() {
return this.serviceName;
}
@Override
public ServiceBuilder<ChannelFactory> build(ServiceTarget target) {
Value<ChannelFactory> value = () -> new JChannelFactory(this);
ServiceBuilder<ChannelFactory> builder = target.addService(this.getServiceName(), new ValueService<>(value))
.addDependency(ServerEnvironmentService.SERVICE_NAME, ServerEnvironment.class, this.environment)
.setInitialMode(ServiceController.Mode.ON_DEMAND);
this.transport.register(builder);
this.protocols.forEach(protocol -> protocol.register(builder));
if (this.relay != null) {
this.relay.register(builder);
}
return builder;
}
@Override
public Builder<ChannelFactory> configure(OperationContext context, ModelNode model) throws OperationFailedException {
PathAddress address = context.getCurrentAddress();
Resource resource = context.readResource(PathAddress.EMPTY_ADDRESS);
this.statisticsEnabled = StackResourceDefinition.Attribute.STATISTICS_ENABLED.resolveModelAttribute(context, model).asBoolean();
Optional<PathElement> transport = resource.getChildren(TransportResourceDefinition.WILDCARD_PATH.getKey()).stream().map(Resource.ResourceEntry::getPathElement).findFirst();
if (!transport.isPresent()) {
throw JGroupsLogger.ROOT_LOGGER.transportNotDefined(this.getName());
}
this.transport = new InjectedValueDependency<>(new SingletonProtocolServiceNameProvider(address, transport.get()), TransportConfiguration.class);
this.protocols = resource.getChildren(ProtocolResourceDefinition.WILDCARD_PATH.getKey()).stream().map(entry -> new InjectedValueDependency<>(new ProtocolServiceNameProvider(address, entry.getPathElement()), ProtocolConfiguration.class)).collect(Collectors.toList());
this.relay = resource.hasChild(RelayResourceDefinition.PATH) ? new InjectedValueDependency<>(new SingletonProtocolServiceNameProvider(address, RelayResourceDefinition.PATH), RelayConfiguration.class) : null;
return this;
}
@Override
public String getName() {
return this.name;
}
@Override
public TransportConfiguration<? extends TP> getTransport() {
return this.transport.getValue();
}
@Override
public List<ProtocolConfiguration<? extends Protocol>> getProtocols() {
// This works in eclipse, but fails in openjdk 1.8.0_121
// return this.protocols.stream().map(Value::getValue).collect(Collectors.toList());
List<ProtocolConfiguration<? extends Protocol>> protocols = new ArrayList<>(this.protocols.size());
for (@SuppressWarnings("rawtypes") Value<ProtocolConfiguration> protocolValue : this.protocols) {
ProtocolConfiguration<? extends Protocol> protocol = protocolValue.getValue();
protocols.add(protocol);
}
return protocols;
}
@Override
public String getNodeName() {
return this.environment.getValue().getNodeName();
}
@Override
public RelayConfiguration getRelay() {
return (this.relay != null) ? this.relay.getValue() : null;
}
@Override
public boolean isStatisticsEnabled() {
return this.statisticsEnabled;
}
}