/*
* JBoss, Home of Professional Open Source
* Copyright 2005, Red Hat Middleware LLC, 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.ejb3.deployers;
import java.util.List;
import java.util.jar.Attributes;
import java.util.jar.Manifest;
import javax.management.MBeanServer;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NameNotFoundException;
import javax.naming.NamingException;
import org.jboss.deployers.spi.DeploymentException;
import org.jboss.deployers.spi.structure.ClassPathEntry;
import org.jboss.deployers.spi.structure.StructureMetaData;
import org.jboss.deployers.structure.spi.DeploymentUnit;
import org.jboss.deployers.vfs.spi.deployer.AbstractSimpleVFSRealDeployer;
import org.jboss.deployers.vfs.spi.structure.VFSDeploymentUnit;
import org.jboss.ejb3.InitialContextFactory;
import org.jboss.ejb3.KernelAbstraction;
import org.jboss.ejb3.MCKernelAbstraction;
import org.jboss.ejb3.clientmodule.ClientENCInjectionContainer;
import org.jboss.kernel.Kernel;
import org.jboss.metadata.client.jboss.JBossClientMetaData;
import org.jboss.naming.Util;
import org.jboss.virtual.VFSUtils;
import org.jboss.virtual.VirtualFile;
/**
* Deploys a client application jar.
*
* @author <a href="mailto:carlo.dewolf@jboss.com">Carlo de Wolf</a>
* @author adrian@jboss.org
* @version $Revision: $
*/
public class Ejb3ClientDeployer extends AbstractSimpleVFSRealDeployer<JBossClientMetaData>
{
private Kernel kernel;
private MBeanServer server;
/** A flag indicating if a deployment based jndi should be linked to the JBossClientMetaData.jndiName */
private boolean linkDeploymentJndiName = true;
/**
* Create a new Ejb3ClientDeployer.
*/
public Ejb3ClientDeployer()
{
super(JBossClientMetaData.class);
setOutput(ClientENCInjectionContainer.class);
}
public boolean isLinkDeploymentJndiName()
{
return linkDeploymentJndiName;
}
public void setLinkDeploymentJndiName(boolean linkDeploymentJndiName)
{
this.linkDeploymentJndiName = linkDeploymentJndiName;
}
@Override
public void deploy(VFSDeploymentUnit unit, JBossClientMetaData metaData) throws DeploymentException
{
log.debug("deploy " + unit.getName());
String appClientName = getJndiName(metaData);
String deploymentClientName = null;
if(appClientName == null)
appClientName = getDeploymentJndiName(unit);
else if(linkDeploymentJndiName)
deploymentClientName = getDeploymentJndiName(unit);
try
{
// I create the namespace here, because I destroy it in undeploy
InitialContext iniCtx = InitialContextFactory.getInitialContext();
Context encCtx = Util.createSubcontext(iniCtx, appClientName);
log.debug("Creating client ENC binding under: " + appClientName);
if(deploymentClientName != null && deploymentClientName.equals(appClientName) == false)
{
Util.createLinkRef(iniCtx, deploymentClientName, appClientName);
}
// Notify the client launcher of extra class path entries in an EAR (See EE 8.2)
encCtx.bind("classPathEntries", getClassPathEntries(unit));
// TODO: Notify the client launcher of other metadata stuff (injectors, lifecycle callbacks etc)
// FIXME: For now I expose the entire metadata
encCtx.bind("metaData", metaData);
String mainClassName = getMainClassName(unit, true);
Class<?> mainClass = loadClass(unit, mainClassName);
ClientENCInjectionContainer container = new ClientENCInjectionContainer(unit, metaData, mainClass, appClientName, unit.getClassLoader(), encCtx);
//di.deployedObject = container.getObjectName();
unit.addAttachment(ClientENCInjectionContainer.class, container);
getKernelAbstraction().install(container.getObjectName().getCanonicalName(), container.getDependencyPolicy(), container);
}
catch(Exception e)
{
log.error("Could not deploy " + unit.getName(), e);
undeploy(unit, metaData);
throw new DeploymentException("Could not deploy " + unit.getName(), e);
}
}
/**
* Get the class path entries which have been determined by the EARStructure.
* Will return null if this unit is not part of an ear deployment.
*/
private List<ClassPathEntry> getClassPathEntries(VFSDeploymentUnit unit)
{
// log.info("class path = " + unit.getTopLevel().getAttachment(StructureMetaData.class).getContext("").getClassPath());
StructureMetaData smd = unit.getTopLevel().getAttachment(StructureMetaData.class);
if(smd == null)
return null;
// A context without a path is the one we want (see AbstractStructureDeployer)
return smd.getContext("").getClassPath();
}
/**
* If there is no deployment descriptor, or it doesn't specify a JNDI name, then we make up one.
* We use the basename from di.shortName.
*
* @param unit
* @param dd
* @return a good JNDI name
*/
private String getJndiName(JBossClientMetaData dd)
{
String jndiName = dd.getJndiName();
return jndiName;
}
private String getDeploymentJndiName(DeploymentUnit unit)
{
String jndiName;
String shortName = unit.getSimpleName();
if(shortName.endsWith(".jar/"))
jndiName = shortName.substring(0, shortName.length() - 5);
else if(shortName.endsWith(".jar"))
jndiName = shortName.substring(0, shortName.length() - 4);
else
throw new IllegalStateException("Expected either '.jar' or '.jar/' at the end of " + shortName);
return jndiName;
}
// public Kernel getKernel()
// {
// return kernel;
// }
private KernelAbstraction getKernelAbstraction()
{
return new MCKernelAbstraction(kernel, server);
}
// TODO: move this method either to a utility class or to the scanning deployer
protected String getMainClassName(VFSDeploymentUnit unit, boolean fail) throws Exception
{
VirtualFile file = unit.getMetaDataFile("MANIFEST.MF");
log.trace("parsing " + file);
// Default to the jboss client main
String mainClassName = "org.jboss.client.AppClientMain";
if (file != null)
{
try
{
Manifest mf = VFSUtils.readManifest(file);
Attributes attrs = mf.getMainAttributes();
String className = attrs.getValue(Attributes.Name.MAIN_CLASS);
if (className != null)
{
mainClassName = className;
}
}
finally
{
file.close();
}
}
return mainClassName;
}
private Class<?> loadClass(DeploymentUnit unit, String className) throws ClassNotFoundException
{
ClassLoader old = Thread.currentThread().getContextClassLoader();
try
{
Thread.currentThread().setContextClassLoader(unit.getClassLoader());
return Thread.currentThread().getContextClassLoader().loadClass(className);
}
finally
{
Thread.currentThread().setContextClassLoader(old);
}
}
public void setKernel(Kernel kernel)
{
this.kernel = kernel;
}
public void setMbeanServer(MBeanServer server)
{
this.server = server;
}
@Override
public void undeploy(VFSDeploymentUnit unit, JBossClientMetaData metaData)
{
log.debug("undeploy " + unit.getName());
ClientENCInjectionContainer container = unit.getAttachment(ClientENCInjectionContainer.class);
if(container != null)
getKernelAbstraction().uninstall(container.getObjectName().getCanonicalName());
String appClientName = getJndiName(metaData);
String deploymentClientName = null;
if(appClientName == null)
appClientName = getDeploymentJndiName(unit);
else if(linkDeploymentJndiName)
deploymentClientName = getDeploymentJndiName(unit);
log.debug("Removing client ENC from: " + appClientName);
try
{
InitialContext iniCtx = InitialContextFactory.getInitialContext();
Util.unbind(iniCtx, appClientName);
if(deploymentClientName != null && deploymentClientName.equals(appClientName) == false)
Util.removeLinkRef(deploymentClientName);
}
catch(NameNotFoundException e)
{
// make sure stop doesn't fail for no reason
log.debug("Could not find client ENC");
}
catch (NamingException e)
{
log.error("Failed to remove client ENC", e);
}
}
}