/*
* 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;
import static java.security.AccessController.doPrivileged;
import javax.net.SocketFactory;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.security.PrivilegedAction;
import java.util.Map;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import org.jboss.as.host.controller.logging.HostControllerLogger;
import org.jboss.as.process.ProcessControllerClient;
import org.jboss.as.process.ProcessInfo;
import org.jboss.as.process.ProcessMessageHandler;
import org.jboss.as.process.protocol.ProtocolClient;
import org.jboss.as.protocol.StreamUtils;
import org.jboss.msc.service.Service;
import org.jboss.msc.service.ServiceName;
import org.jboss.msc.service.StartContext;
import org.jboss.msc.service.StartException;
import org.jboss.msc.service.StopContext;
import org.jboss.threads.JBossThreadFactory;
/**
* Provides a client for interacting with the process controller.
*
* @author Emanuel Muckenhuber
*/
class ProcessControllerConnectionService implements Service<ProcessControllerConnectionService> {
static final ServiceName SERVICE_NAME = ServiceName.JBOSS.append("host", "controller", "process-controller-connection");
private final HostControllerEnvironment environment;
private final String authCode;
private volatile ProcessControllerClient client;
private volatile ServerInventory serverInventory;
private static final int WORK_QUEUE_SIZE = 256;
private static final int THREAD_POOL_CORE_SIZE = 1;
private static final int THREAD_POOL_MAX_SIZE = 4;
ProcessControllerConnectionService(final HostControllerEnvironment environment, final String authCode) {
this.environment = environment;
this.authCode = authCode;
}
void setServerInventory(ServerInventory serverInventory) {
this.serverInventory = serverInventory;
}
/** {@inheritDoc} */
@Override
public synchronized void start(StartContext context) throws StartException {
final ProcessControllerClient client;
try {
final ThreadFactory threadFactory = doPrivileged(new PrivilegedAction<JBossThreadFactory>() {
public JBossThreadFactory run() {
return new JBossThreadFactory(new ThreadGroup("ProcessControllerConnection-thread"), Boolean.FALSE, null, "%G - %t", null, null);
}
});
final ThreadPoolExecutor executorService = new ThreadPoolExecutor(THREAD_POOL_CORE_SIZE, THREAD_POOL_MAX_SIZE, 30L, TimeUnit.MILLISECONDS, new LinkedBlockingQueue<Runnable>(WORK_QUEUE_SIZE), threadFactory);
final ProtocolClient.Configuration configuration = new ProtocolClient.Configuration();
configuration.setReadExecutor(executorService);
configuration.setServerAddress(new InetSocketAddress(environment.getProcessControllerAddress(), environment.getProcessControllerPort().intValue()));
configuration.setBindAddress(new InetSocketAddress(environment.getHostControllerAddress(), environment.getHostControllerPort()));
configuration.setThreadFactory(threadFactory);
configuration.setSocketFactory(SocketFactory.getDefault());
client = ProcessControllerClient.connect(configuration, authCode, new ProcessMessageHandler() {
@Override
public void handleProcessAdded(final ProcessControllerClient client, final String processName) {
if (serverInventory == null){
throw HostControllerLogger.ROOT_LOGGER.noServerInventory();
}
if(ManagedServer.isServerProcess(processName)) {
serverInventory.serverProcessAdded(processName);
}
}
@Override
public void handleProcessStarted(final ProcessControllerClient client, final String processName) {
if (serverInventory == null){
throw HostControllerLogger.ROOT_LOGGER.noServerInventory();
}
if(ManagedServer.isServerProcess(processName)) {
serverInventory.serverProcessStarted(processName);
}
}
@Override
public void handleProcessStopped(final ProcessControllerClient client, final String processName, final long uptimeMillis) {
if (serverInventory == null){
throw HostControllerLogger.ROOT_LOGGER.noServerInventory();
}
if(ManagedServer.isServerProcess(processName)) {
serverInventory.serverProcessStopped(processName);
}
}
@Override
public void handleProcessRemoved(final ProcessControllerClient client, final String processName) {
if (serverInventory == null){
throw HostControllerLogger.ROOT_LOGGER.noServerInventory();
}
if(ManagedServer.isServerProcess(processName)) {
serverInventory.serverProcessRemoved(processName);
}
}
@Override
public void handleProcessInventory(final ProcessControllerClient client, final Map<String, ProcessInfo> inventory) {
if (serverInventory == null){
throw HostControllerLogger.ROOT_LOGGER.noServerInventory();
}
serverInventory.processInventory(inventory);
}
@Override
public void handleConnectionShutdown(final ProcessControllerClient client) {
if(serverInventory == null) {
return;
}
serverInventory.connectionFinished();
}
@Override
public void handleConnectionFailure(final ProcessControllerClient client, final IOException cause) {
if(serverInventory == null) {
return;
}
serverInventory.connectionFinished();
}
@Override
public void handleConnectionFinished(final ProcessControllerClient client) {
if(serverInventory == null) {
return;
}
serverInventory.connectionFinished();
}
@Override
public void handleOperationFailed(ProcessControllerClient client, OperationType operation, String processName) {
if (serverInventory == null){
throw HostControllerLogger.ROOT_LOGGER.noServerInventory();
}
if(ManagedServer.isServerProcess(processName)) {
serverInventory.operationFailed(processName, operation);
}
}
});
} catch(IOException e) {
throw new StartException(e);
}
this.client = client;
}
/** {@inheritDoc} */
@Override
public synchronized void stop(StopContext context) {
final ProcessControllerClient client = this.client;
this.client = null;
StreamUtils.safeClose(client);
}
/** {@inheritDoc} */
@Override
public synchronized ProcessControllerConnectionService getValue() throws IllegalStateException, IllegalArgumentException {
return this;
}
public synchronized ProcessControllerClient getClient() throws IllegalStateException, IllegalArgumentException {
final ProcessControllerClient client = this.client;
if(client == null) {
throw new IllegalStateException();
}
return client;
}
}