/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, 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.aop.asintegration.jboss5;
import java.io.BufferedInputStream;
import java.io.DataInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import javassist.bytecode.ClassFile;
import org.jboss.aop.AspectAnnotationLoader;
import org.jboss.aop.microcontainer.beans.metadata.AOPDeployment;
import org.jboss.aop.microcontainer.beans.metadata.AspectManagerAwareBeanMetaDataFactory;
import org.jboss.aop.microcontainer.beans.metadata.MicrocontainerAnnotationLoaderStrategy;
import org.jboss.beans.metadata.spi.BeanMetaDataFactory;
import org.jboss.deployers.spi.DeploymentException;
import org.jboss.deployers.spi.deployer.DeploymentStages;
import org.jboss.deployers.spi.deployer.helpers.AbstractDeployer;
import org.jboss.deployers.structure.spi.DeploymentUnit;
import org.jboss.deployers.vfs.spi.structure.VFSDeploymentUnit;
import org.jboss.virtual.VirtualFile;
import org.jboss.virtual.VirtualFileFilter;
import org.jboss.virtual.VisitorAttributes;
import org.jboss.virtual.plugins.context.jar.JarUtils;
import org.jboss.virtual.plugins.vfs.helpers.FilterVirtualFileVisitor;
import org.jboss.virtual.plugins.vfs.helpers.SuffixesExcludeFilter;
/**
* Reads the annotations and converts them into AOP metadata to be deployed properly
* by the AOPDeploymentAopMetaDataDeployer
*
* @author <a href="kabir.khan@jboss.com">Kabir Khan</a>
* @version $Revision: 103305 $
*/
public class AOPAnnotationMetaDataParserDeployer extends AbstractDeployer
{
public AOPAnnotationMetaDataParserDeployer(int xmlParserOrder)
{
super.setOutput(AOPDeployment.class);
super.setStage(DeploymentStages.POST_PARSE);
if (xmlParserOrder != 0)
{
//Make this come after the AOPXMLMetaDataParserDeployer if the relative order is set
super.setRelativeOrder(xmlParserOrder + 1);
}
}
public AOPAnnotationMetaDataParserDeployer()
{
this(0);
}
public void deploy(DeploymentUnit unit) throws DeploymentException
{
// Ignore non-vfs deployments
if (unit instanceof VFSDeploymentUnit == false)
{
log.trace("Not a vfs deployment: " + unit.getName());
return;
}
// See if the suffix matches the .aop requirement
if (unit.getSimpleName().endsWith(".aop") == false)
{
log.trace("Unit name does not end in .aop: " + unit.getSimpleName());
return;
}
internalDeploy((VFSDeploymentUnit)unit);
}
private void internalDeploy(VFSDeploymentUnit unit) throws DeploymentException
{
MicrocontainerAnnotationLoaderStrategy strategy = new MicrocontainerAnnotationLoaderStrategy();
AspectAnnotationLoader loader = new AspectAnnotationLoader(null, strategy);
List<VirtualFile> files = getClasses(unit);
for(VirtualFile file : files)
{
try
{
ClassFile cf = loadClassFile(file);
log.debug("Deploying possibly annotated class " + cf.getName());
loader.deployClassFile(cf);
}
catch (Exception e)
{
throw new DeploymentException("Error reading annotations for " + file, e);
}
}
List<AspectManagerAwareBeanMetaDataFactory> factories = strategy.getFactories();
AOPDeployment deployment = unit.getAttachment(AOPDeployment.class);
if (factories != null && factories.size() > 0)
{
if (deployment == null)
{
deployment = new AOPDeployment();
unit.addAttachment(AOPDeployment.class.getName(), deployment, AOPDeployment.class);
}
if (deployment.getBeanFactories() == null)
{
deployment.setBeanFactories(new ArrayList<BeanMetaDataFactory>());
}
deployment.getBeanFactories().addAll(factories);
}
}
private ClassFile loadClassFile(VirtualFile file)
{
DataInputStream din = null;
ClassFile cf = null;
try
{
InputStream in = file.openStream();
din = new DataInputStream(new BufferedInputStream(in));
cf = new ClassFile(din);
}
catch (IOException e)
{
throw new RuntimeException("Error reading " + file, e);
}
finally
{
try
{
din.close();
}
catch (IOException ignored)
{
}
}
return cf;
}
private List<VirtualFile> getClasses(VFSDeploymentUnit unit)
{
VisitorAttributes va = new VisitorAttributes();
va.setLeavesOnly(true);
ClassFileFilter filter = new ClassFileFilter();
SuffixesExcludeFilter noJars = new SuffixesExcludeFilter(JarUtils.getSuffixes());
va.setRecurseFilter(noJars);
FilterVirtualFileVisitor visitor = new FilterVirtualFileVisitor(filter, va);
for (VirtualFile vf : unit.getClassPath())
{
try
{
vf.visit(visitor);
}
catch (IOException e)
{
throw new RuntimeException(e);
}
}
return visitor.getMatched();
}
private static class ClassFileFilter implements VirtualFileFilter
{
public boolean accepts(VirtualFile file)
{
try
{
return file.isLeaf() && file.getName().endsWith(".class");
}
catch (IOException e)
{
throw new RuntimeException("Error visiting file: " + file.getName(), e);
}
}
}
}