/*
* JBoss, Home of Professional Open Source
* Copyright 2010, Red Hat Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt 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.appclient.service;
import java.lang.reflect.Method;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.Collections;
import java.util.List;
import java.util.ListIterator;
import javax.security.auth.callback.CallbackHandler;
import org.jboss.as.ee.component.Component;
import org.jboss.as.ee.component.ComponentInstance;
import org.jboss.as.ee.naming.InjectedEENamespaceContextSelector;
import org.jboss.as.naming.context.NamespaceContextSelector;
import org.jboss.as.server.CurrentServiceContainer;
import org.jboss.as.server.deployment.SetupAction;
import org.jboss.ejb.client.ContextSelector;
import org.jboss.ejb.client.EJBClientConfiguration;
import org.jboss.ejb.client.EJBClientContext;
import org.jboss.ejb.client.remoting.ConfigBasedEJBClientContextSelector;
import org.jboss.msc.service.Service;
import org.jboss.msc.service.ServiceContainer;
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.msc.value.InjectedValue;
import static org.jboss.as.appclient.logging.AppClientLogger.ROOT_LOGGER;
/**
* Service that is responsible for running an application clients main method, and shutting down the server once it
* completes
*
* @author Stuart Douglas
*/
public class ApplicationClientStartService implements Service<ApplicationClientStartService> {
public static final ServiceName SERVICE_NAME = ServiceName.of("appClientStart");
private final InjectedValue<ApplicationClientDeploymentService> applicationClientDeploymentServiceInjectedValue = new InjectedValue<ApplicationClientDeploymentService>();
private final InjectedValue<Component> applicationClientComponent = new InjectedValue<Component>();
private final InjectedEENamespaceContextSelector namespaceContextSelectorInjectedValue;
private final List<SetupAction> setupActions;
private final Method mainMethod;
private final String[] parameters;
private final ClassLoader classLoader;
private final ContextSelector<EJBClientContext> contextSelector;
final String hostUrl;
private Thread thread;
private ComponentInstance instance;
public ApplicationClientStartService(final Method mainMethod, final String[] parameters, final InjectedEENamespaceContextSelector namespaceContextSelectorInjectedValue, final ClassLoader classLoader, final List<SetupAction> setupActions, final String hostUrl, final CallbackHandler callbackHandler) {
this.mainMethod = mainMethod;
this.parameters = parameters;
this.namespaceContextSelectorInjectedValue = namespaceContextSelectorInjectedValue;
this.classLoader = classLoader;
this.hostUrl = hostUrl;
this.setupActions = setupActions;
this.contextSelector = new LazyConnectionContextSelector(hostUrl, callbackHandler);
}
public ApplicationClientStartService(final Method mainMethod, final String[] parameters, final InjectedEENamespaceContextSelector namespaceContextSelectorInjectedValue, final ClassLoader classLoader, final List<SetupAction> setupActions, final EJBClientConfiguration configuration) {
this.mainMethod = mainMethod;
this.parameters = parameters;
this.namespaceContextSelectorInjectedValue = namespaceContextSelectorInjectedValue;
this.classLoader = classLoader;
this.hostUrl = null;
this.setupActions = setupActions;
this.contextSelector = new ConfigBasedEJBClientContextSelector(configuration);
}
@Override
public synchronized void start(final StartContext context) throws StartException {
thread = new Thread(new Runnable() {
@Override
public void run() {
final ClassLoader oldTccl = SecurityActions.getContextClassLoader();
try {
try {
try {
SecurityActions.setContextClassLoader(classLoader);
AccessController.doPrivileged(new SetSelectorAction(contextSelector));
applicationClientDeploymentServiceInjectedValue.getValue().getDeploymentCompleteLatch().await();
NamespaceContextSelector.setDefault(namespaceContextSelectorInjectedValue);
try {
//perform any additional setup that may be needed
for (SetupAction action : setupActions) {
action.setup(Collections.<String, Object>emptyMap());
}
//do static injection etc
instance = applicationClientComponent.getValue().createInstance();
mainMethod.invoke(null, new Object[]{parameters});
} finally {
final ListIterator<SetupAction> iterator = setupActions.listIterator(setupActions.size());
Throwable error = null;
while (iterator.hasPrevious()) {
SetupAction action = iterator.previous();
try {
action.teardown(Collections.<String, Object>emptyMap());
} catch (Throwable e) {
error = e;
}
}
if (error != null) {
throw new RuntimeException(error);
}
}
} catch (Exception e) {
ROOT_LOGGER.exceptionRunningAppClient(e, e.getClass().getSimpleName());
} finally {
SecurityActions.setContextClassLoader(oldTccl);
}
} finally {
if(contextSelector instanceof LazyConnectionContextSelector) {
((LazyConnectionContextSelector)contextSelector).close();
}
}
} finally {
CurrentServiceContainer.getServiceContainer().shutdown();
}
}
});
thread.start();
Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
@Override
public void run() {
final ServiceContainer serviceContainer = CurrentServiceContainer.getServiceContainer();
if(serviceContainer != null) {
serviceContainer.shutdown();
}
}
}));
}
@Override
public synchronized void stop(final StopContext context) {
if (instance != null) {
instance.destroy();
}
thread.interrupt();
thread = null;
}
@Override
public ApplicationClientStartService getValue() throws IllegalStateException, IllegalArgumentException {
return this;
}
public InjectedValue<ApplicationClientDeploymentService> getApplicationClientDeploymentServiceInjectedValue() {
return applicationClientDeploymentServiceInjectedValue;
}
public InjectedValue<Component> getApplicationClientComponent() {
return applicationClientComponent;
}
private static final class SetSelectorAction implements PrivilegedAction<ContextSelector<EJBClientContext>> {
private final ContextSelector<EJBClientContext> selector;
private SetSelectorAction(final ContextSelector<EJBClientContext> selector) {
this.selector = selector;
}
@Override
public ContextSelector<EJBClientContext> run() {
return EJBClientContext.setSelector(selector);
}
}
}