/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, 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.host.controller.mgmt;
import static java.security.AccessController.doPrivileged;
import java.io.File;
import java.security.PrivilegedAction;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;
import org.jboss.as.controller.ExpressionResolver;
import org.jboss.as.domain.controller.DomainController;
import org.jboss.as.host.controller.ServerInventory;
import org.jboss.as.protocol.mgmt.ManagementChannelHandler;
import org.jboss.as.protocol.mgmt.ManagementClientChannelStrategy;
import org.jboss.as.protocol.mgmt.ManagementPongRequestHandler;
import org.jboss.as.protocol.mgmt.support.ManagementChannelInitialization;
import org.jboss.msc.service.Service;
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.jboss.remoting3.Channel;
import org.jboss.threads.JBossThreadFactory;
/**
* Operation handler responsible for requests coming in from server processes on the host controller.
* The server side counterpart is {@link org.jboss.as.server.mgmt.domain.HostControllerClient}
*
* @author John Bailey
* @author Emanuel Muckenhuber
* @author Kabir Khan
*/
public class ServerToHostOperationHandlerFactoryService implements ManagementChannelInitialization, Service<ManagementChannelInitialization> {
public static final ServiceName SERVICE_NAME = ServiceName.JBOSS.append("management", "server", "to", "host", "controller");
private final ExecutorService executorService;
private final InjectedValue<ServerInventory> serverInventory = new InjectedValue<ServerInventory>();
private final ServerToHostProtocolHandler.OperationExecutor operationExecutor;
private final DomainController domainController;
private final ExpressionResolver expressionResolver;
private final File tempDir;
private final ThreadFactory threadFactory = doPrivileged(new PrivilegedAction<JBossThreadFactory>() {
public JBossThreadFactory run() {
return new JBossThreadFactory(new ThreadGroup("server-registration-threads"), Boolean.FALSE, null, "%G - %t", null, null);
}
});
private volatile ExecutorService registrations;
ServerToHostOperationHandlerFactoryService(ExecutorService executorService, ServerToHostProtocolHandler.OperationExecutor operationExecutor, DomainController domainController, ExpressionResolver expressionResolver, File tempDir) {
this.executorService = executorService;
this.operationExecutor = operationExecutor;
this.domainController = domainController;
this.expressionResolver = expressionResolver;
this.tempDir = tempDir;
}
public static void install(final ServiceTarget serviceTarget, final ServiceName serverInventoryName, ExecutorService executorService, ServerToHostProtocolHandler.OperationExecutor operationExecutor, DomainController domainController,
ExpressionResolver expressionResolver, File tempDir) {
final ServerToHostOperationHandlerFactoryService serverToHost = new ServerToHostOperationHandlerFactoryService(executorService, operationExecutor, domainController, expressionResolver, tempDir);
serviceTarget.addService(ServerToHostOperationHandlerFactoryService.SERVICE_NAME, serverToHost)
.addDependency(serverInventoryName, ServerInventory.class, serverToHost.serverInventory)
.install();
}
/** {@inheritDoc} */
@Override
public synchronized void start(StartContext context) throws StartException {
this.registrations = Executors.newSingleThreadExecutor(threadFactory);
}
/** {@inheritDoc} */
@Override
public synchronized void stop(StopContext context) {
final ExecutorService executorService = this.registrations;
this.registrations = null;
if(executorService != null) {
executorService.shutdown();
}
}
/** {@inheritDoc} */
@Override
public synchronized ManagementChannelInitialization getValue() throws IllegalStateException, IllegalArgumentException {
return this;
}
@Override
public ManagementChannelHandler startReceiving(final Channel channel) {
final ManagementClientChannelStrategy strategy = ManagementClientChannelStrategy.create(channel);
final ManagementChannelHandler channelHandler = new ManagementChannelHandler(strategy, executorService);
channelHandler.getAttachments().attach(ManagementChannelHandler.TEMP_DIR, tempDir);
final ServerToHostProtocolHandler registrationHandler = new ServerToHostProtocolHandler(serverInventory.getValue(), operationExecutor, domainController, channelHandler, registrations, expressionResolver);
channelHandler.addHandlerFactory(new ManagementPongRequestHandler());
channelHandler.addHandlerFactory(registrationHandler);
channel.receiveMessage(channelHandler.getReceiver());
return channelHandler;
}
}