/*
* JBoss, Home of Professional Open Source
* Copyright 2006, JBoss 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.deployers.vfs.deployer.kernel;
import java.util.Collection;
import org.jboss.beans.metadata.plugins.AbstractClassLoaderMetaData;
import org.jboss.beans.metadata.plugins.AbstractValueMetaData;
import org.jboss.beans.metadata.spi.BeanMetaData;
import org.jboss.beans.metadata.spi.ClassLoaderMetaData;
import org.jboss.beans.metadata.spi.ValueMetaData;
import org.jboss.dependency.spi.Controller;
import org.jboss.dependency.spi.ScopeInfo;
import org.jboss.deployers.spi.DeploymentException;
import org.jboss.deployers.spi.deployer.helpers.AbstractSimpleRealDeployer;
import org.jboss.deployers.structure.spi.DeploymentUnit;
import org.jboss.kernel.Kernel;
import org.jboss.kernel.plugins.dependency.AbstractKernelControllerContext;
import org.jboss.kernel.spi.dependency.KernelControllerContext;
import org.jboss.metadata.spi.scope.Scope;
import org.jboss.metadata.spi.scope.ScopeKey;
/**
* BeanMetaDataDeployer.<p>
*
* This deployer is responsible for deploying all metadata of
* type {@link org.jboss.beans.metadata.spi.BeanMetaData}.
*
* @author <a href="adrian@jboss.com">Adrian Brock</a>
* @version $Revision: 1.1 $
*/
public class BeanMetaDataDeployer extends AbstractSimpleRealDeployer<BeanMetaData>
{
/** The controller */
private Controller controller;
/**
* Create a new BeanDeployer.
*
* @param kernel the kernel
* @throws IllegalArgumentException for a null kernel
* @deprecated use other constructor
*/
public BeanMetaDataDeployer(Kernel kernel)
{
super(BeanMetaData.class);
if (kernel == null)
throw new IllegalArgumentException("Null kernel");
init(kernel.getController());
}
/**
* Create a new BeanDeployer.
*
* @param controller the controller
* @throws IllegalArgumentException for a null controller
*/
public BeanMetaDataDeployer(Controller controller)
{
super(BeanMetaData.class);
init(controller);
}
/**
* Simple init.
*
* @param controller the controller
*/
protected void init(Controller controller)
{
if (controller == null)
throw new IllegalArgumentException("Null controller");
this.controller = controller;
setComponentsOnly(true);
setUseUnitName(true);
}
@Override
public void deploy(DeploymentUnit unit, BeanMetaData deployment) throws DeploymentException
{
// No explicit classloader, use the deployment's classloader
if (deployment.getClassLoader() == null)
{
try
{
// Check the unit has a classloader
unit.getClassLoader();
// TODO clone the metadata?
deployment.setClassLoader(new DeploymentClassLoaderMetaData(unit));
}
catch (Exception e)
{
log.debug("Unable to retrieve classloader for deployment: " + unit.getName() + " reason=" + e.toString());
}
}
KernelControllerContext context = new AbstractKernelControllerContext(null, deployment, null);
ScopeInfo scopeInfo = context.getScopeInfo();
if (scopeInfo != null)
{
mergeScopes(scopeInfo.getScope(), unit.getScope());
mergeScopes(scopeInfo.getMutableScope(), unit.getMutableScope());
}
try
{
controller.install(context);
}
catch (Throwable t)
{
throw DeploymentException.rethrowAsDeploymentException("Error deploying: " + deployment.getName(), t);
}
}
/**
* Merge scope keys.
*
* @param contextKey the context key
* @param unitKey the unit key
*/
protected static void mergeScopes(ScopeKey contextKey, ScopeKey unitKey)
{
if (contextKey == null)
return;
if (unitKey == null)
return;
Collection<Scope> unitScopes = unitKey.getScopes();
if (unitScopes == null || unitScopes.isEmpty())
return;
for (Scope scope : unitScopes)
contextKey.addScope(scope);
}
@Override
public void undeploy(DeploymentUnit unit, BeanMetaData deployment)
{
controller.uninstall(deployment.getName());
// Remove any classloader metadata we added (not necessary if we clone above)
ClassLoaderMetaData classLoader = deployment.getClassLoader();
if (classLoader instanceof DeploymentClassLoaderMetaData)
deployment.setClassLoader(null);
}
/**
* DeploymentClassLoaderMetaData.
*/
private class DeploymentClassLoaderMetaData extends AbstractClassLoaderMetaData
{
/** The serialVersionUID */
private static final long serialVersionUID = 1L;
/** The deployment unit */
private DeploymentUnit unit;
/**
* Create a new DeploymentClassLoaderMetaData.
*
* @param unit the deployment unit
*/
public DeploymentClassLoaderMetaData(DeploymentUnit unit)
{
if (unit == null)
throw new IllegalArgumentException("Null unit");
this.unit = unit;
}
@Override
public ValueMetaData getClassLoader()
{
return new AbstractValueMetaData(unit.getClassLoader());
}
}
}