/**
* EasyBeans
* Copyright (C) 2007 Bull S.A.S.
* Contact: easybeans@ow2.org
*
* This library 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 any later version.
*
* This library 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 library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
* --------------------------------------------------------------------------
* $Id: AbsWebContainerDeployer.java 6036 2011-10-27 09:57:07Z benoitf $
* --------------------------------------------------------------------------
*/
package org.ow2.easybeans.deployer;
import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.ArrayList;
import java.util.List;
import java.util.jar.JarFile;
import org.ow2.easybeans.api.EZBContainer;
import org.ow2.easybeans.api.EZBContainerException;
import org.ow2.easybeans.deployment.InjectionHolder;
import org.ow2.easybeans.deployment.api.EZBInjectionHolder;
import org.ow2.easybeans.loader.EasyBeansClassLoader;
import org.ow2.easybeans.persistence.EZBPersistenceUnitManager;
import org.ow2.easybeans.resolver.ApplicationJNDIResolver;
import org.ow2.easybeans.resolver.api.EZBApplicationJNDIResolver;
import org.ow2.easybeans.resolver.api.EZBContainerJNDIResolver;
import org.ow2.easybeans.util.url.URLUtils;
import org.ow2.util.archive.api.ArchiveException;
import org.ow2.util.archive.api.IArchive;
import org.ow2.util.ee.deploy.api.deployable.CARDeployable;
import org.ow2.util.ee.deploy.api.deployable.EARDeployable;
import org.ow2.util.ee.deploy.api.deployable.EJB3Deployable;
import org.ow2.util.ee.deploy.api.deployable.EJBDeployable;
import org.ow2.util.ee.deploy.api.deployable.IDeployable;
import org.ow2.util.ee.deploy.api.deployable.LibDeployable;
import org.ow2.util.ee.deploy.api.deployable.WARDeployable;
import org.ow2.util.ee.deploy.api.deployer.DeployerException;
import org.ow2.util.file.FileUtils;
import org.ow2.util.file.FileUtilsException;
import org.ow2.util.log.Log;
import org.ow2.util.log.LogFactory;
/**
* This class manage the deployment of EAR for web container. It extracts EJB3
* and send them to EasyBeans while the War are given to the web container.
* @author Florent Benoit
*/
public abstract class AbsWebContainerDeployer<T extends IDeployable<T>> extends AbsDeployer<T> {
/**
* Logger.
*/
private static Log logger = LogFactory.getLog(AbsWebContainerDeployer.class);
/**
* Deploy the WAR files present in the given EAR.
* @param earDeployable the EAR containing the WARs
* @param earURL the EAR URL
* @param earClassLoader the EAR classloader
* @param parentClassLoader the parent classloader (EJB) to use
* @param ejbInjectionHolder the EasyBeans injection holder object
* @throws DeployerException if the wars are not deployed.
*/
protected abstract void deployWARs(final EARDeployable earDeployable, final URL earURL, final ClassLoader earClassLoader,
final ClassLoader parentClassLoader, final EZBInjectionHolder ejbInjectionHolder) throws DeployerException;
/**
* Deploy an EAR (called by the deploy method).
* @param earDeployable a given EAR deployable
* @throws DeployerException if the deployment is not done.
*/
protected void deployEAR(final EARDeployable earDeployable) throws DeployerException {
logger.info("Deploying {0}", earDeployable);
// Get URL of this EAR
URL earURL = null;
try {
earURL = earDeployable.getArchive().getURL();
} catch (ArchiveException e) {
throw new DeployerException("Cannot get the URL for the deployable '" + earDeployable + "'.", e);
}
// Create a Root classloader for this EAR
// Empty classloader
ClassLoader earClassLoader = new URLClassLoader(new URL[0], Thread.currentThread().getContextClassLoader());
// Get EJBs of this EAR
List<EJB3Deployable> ejb3s = earDeployable.getEJB3Deployables();
// Get the URLs of EJB, WEB and Clients
List<URL> urlsEJB = new ArrayList<URL>();
for (EJB3Deployable ejb : ejb3s) {
try {
urlsEJB.add(ejb.getArchive().getURL());
} catch (ArchiveException e) {
throw new DeployerException("Cannot get the URL for the archive '" + ejb.getArchive() + "'", e);
}
}
List<URL> urlsWAR = new ArrayList<URL>();
for (WARDeployable war : earDeployable.getWARDeployables()) {
try {
urlsWAR.add(war.getArchive().getURL());
} catch (ArchiveException e) {
throw new DeployerException("Cannot get the URL for the archive '" + war.getArchive() + "'", e);
}
}
List<URL> urlsClient = new ArrayList<URL>();
for (CARDeployable car : earDeployable.getCARDeployables()) {
try {
urlsClient.add(car.getArchive().getURL());
} catch (ArchiveException e) {
throw new DeployerException("Cannot get the URL for the archive '" + car.getArchive() + "'", e);
}
}
// Get libraries of this EAR
List<LibDeployable> libs = earDeployable.getLibDeployables();
// Create array of URLs with EJBs + Libraries
List<URL> urls = new ArrayList<URL>();
for (EJBDeployable<?> ejb : ejb3s) {
try {
urls.add(ejb.getArchive().getURL());
} catch (ArchiveException e) {
throw new DeployerException("Cannot get the URL for the Archive '" + ejb.getArchive() + "'.", e);
}
}
for (LibDeployable lib : libs) {
try {
urls.add(lib.getArchive().getURL());
} catch (ArchiveException e) {
throw new DeployerException("Cannot get the URL for the Archive '" + lib.getArchive() + "'.", e);
}
}
// Create classloader with these URLs
URL[] arrayURLs = urls.toArray(new URL[urls.size()]);
ClassLoader ejbClassLoader = new EasyBeansClassLoader(arrayURLs, Thread.currentThread().getContextClassLoader());
// Get Persistence unit manager
EZBPersistenceUnitManager persistenceUnitManager = getPersistenceUnitManager(earDeployable, ejbClassLoader);
// Get Extra libraries
List<IArchive> libArchives = getLibArchives(earDeployable);
// Create containers for each EJB deployable
List<EZBContainer> containers = new ArrayList<EZBContainer>();
for (EJBDeployable<?> ejb : ejb3s) {
containers.add(getEmbedded().createContainer(ejb));
}
// Create Resolver for EAR
EZBApplicationJNDIResolver applicationJNDIResolver = new ApplicationJNDIResolver();
// Create EasyBeans injection Holder
InjectionHolder ejbInjectionHolder = new InjectionHolder();
ejbInjectionHolder.setPersistenceUnitManager(persistenceUnitManager);
ejbInjectionHolder.setJNDIResolver(applicationJNDIResolver);
// Configure containers
for (EZBContainer container : containers) {
// Set the classloader that needs to be used
container.setClassLoader(ejbClassLoader);
// Set application name
container.getConfiguration().setApplicationName(earDeployable.getModuleName());
// Add persistence context found
container.setPersistenceUnitManager(persistenceUnitManager);
// Add the metadata
container.setExtraArchives(libArchives);
// set parent JNDI Resolver
EZBContainerJNDIResolver containerJNDIResolver = container.getConfiguration().getContainerJNDIResolver();
containerJNDIResolver.setApplicationJNDIResolver(applicationJNDIResolver);
// Add child on application JNDI Resolver
applicationJNDIResolver.addContainerJNDIResolver(containerJNDIResolver);
// Resolve container
try {
container.resolve();
} catch (EZBContainerException e) {
throw new DeployerException("Cannot resolve the container '" + container.getArchive() + "'.", e);
}
}
// Start containers
for (EZBContainer container : containers) {
try {
container.start();
} catch (EZBContainerException e) {
logger.error("Cannot start container {0}", container.getName(), e);
}
}
// Deploy Web App
deployWARs(earDeployable, earURL, earClassLoader, ejbClassLoader, ejbInjectionHolder);
}
/**
* Undeploy an EAR (called by the undeploy method).
* @param tmpEARDeployable a given EAR deployable
* @throws DeployerException if the undeployment is not done.
*/
protected void undeployEAR(final EARDeployable tmpEARDeployable) throws DeployerException {
logger.info("Undeploying {0}", tmpEARDeployable);
// From which deployable get the containers deployed
EARDeployable earDeployable = tmpEARDeployable;
// Check if this archive has been unpacked ?
EARDeployable unpackedDeployable = earDeployable.getUnpackedDeployable();
if (unpackedDeployable != null) {
earDeployable = unpackedDeployable;
}
// Need to undeploy Wars from the EAR
List<WARDeployable> wars = earDeployable.getWARDeployables();
if (wars != null) {
for (WARDeployable war : wars) {
// undeploy the given war
try {
undeployWAR(war);
} catch (DeployerException e) {
logger.error("Cannot undeploy the WAR deployable ''{0}''", war, e);
}
}
}
// Undeploy EJB3s
undeployEJB3FromEAR(earDeployable);
logger.info("''{0}'' EAR Deployable is now undeployed", tmpEARDeployable);
}
/**
* Undeploy the given deployable. It can be an EJB jar, EAR, WAR, etc.
* @param deployable a given deployable to undeploy
* @throws DeployerException if the undeploy operation fails.
*/
@Override
public void undeploy(final IDeployable<T> deployable) throws DeployerException {
if (EARDeployable.class.isAssignableFrom(deployable.getClass())) {
undeployEAR(EARDeployable.class.cast(deployable));
} else {
throw new UnsupportedOperationException("Undeploy only .ear files");
}
}
/**
* Undeploy an given WAR (called by the undeploy method).
* @param warDeployable a given WAR deployable
* @throws DeployerException if the undeployment is not done.
*/
protected abstract void undeployWAR(final WARDeployable warDeployable) throws DeployerException;
/**
* Unpack the given war into a temp directory.
* @param warFile the war to unpack
* @param war data on the given war
* @param earURL url of the EAR that contains the war
* @return the File to the unpack directory
* @throws DeployerException if unpack fails
*/
protected File unpack(final File warFile, final WARDeployable war, final URL earURL) throws DeployerException {
// Get EAR application name
String earName = URLUtils.urlToFile(earURL).getName();
// unpack Root directory
String rootUnpackDir = System.getProperty("java.io.tmpdir") + File.separator + System.getProperty("user.name")
+ "-EasyBeans-unpack" + File.separator;
// Unpack directory
File unpackDir = new File(rootUnpackDir, earName + File.separator + warFile.getName());
// Build a JarFile on the war
JarFile packedJar;
try {
packedJar = new JarFile(warFile);
} catch (IOException e) {
throw new DeployerException("The war file '" + warFile + "' is not a valid war file", e);
}
// Unpack the war
try {
FileUtils.unpack(packedJar, unpackDir);
} catch (FileUtilsException e) {
throw new DeployerException("Cannot unpack the file '" + packedJar + "' in the directory '" + unpackDir + "'.", e);
}
return unpackDir;
}
/**
* Deploy a deployable. It can be an EJB jar, EAR, WAR, etc.
* @param deployable a given deployable
* @throws DeployerException if the deployment is not done.
*/
@Override
public void deploy(final IDeployable<T> deployable) throws DeployerException {
checkSupportedDeployable(deployable);
if (deployable instanceof EJBDeployable) {
deployEJB((EJBDeployable<?>) deployable);
} else if (EARDeployable.class.isAssignableFrom(deployable.getClass())) {
// needs to unpack it before deploying it
EARDeployable earDeployable = unpackEARDeployable(EARDeployable.class.cast(deployable));
deployEAR(earDeployable);
}
}
/**
* Check that the given deployable is supported by this deployer. If it is
* not supported, throw an error.
* @param deployable the deployable that needs to be deployed
* @throws DeployerException if this deployable is not supported.
*/
private void checkSupportedDeployable(final IDeployable<?> deployable) throws DeployerException {
if (!(EARDeployable.class.isAssignableFrom(deployable.getClass()) || EJBDeployable.class.isAssignableFrom(deployable
.getClass()))) {
throw new DeployerException("The deployable '" + deployable + "' is not supported by this deployer");
}
}
}