/*
* 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.plugins.annotations;
import java.net.URL;
import java.util.List;
import org.jboss.classloading.spi.visitor.ResourceContext;
import org.jboss.classloading.spi.visitor.ResourceFilter;
import org.jboss.deployers.spi.annotations.PathMetaData;
import org.jboss.deployers.spi.annotations.ScanningMetaData;
import org.jboss.deployers.structure.spi.DeploymentUnit;
import org.jboss.deployers.vfs.spi.structure.helpers.VFS2BaseBridgeDeploymentUnitFilter;
import org.jboss.logging.Logger;
/**
* ScanningDeploymentUnitFilter
*
* @author <a href="mailto:ales.justin@jboss.com">Ales Justin</a>
*/
public class ScanningDeploymentUnitFilter extends VFS2BaseBridgeDeploymentUnitFilter
{
private Logger log = Logger.getLogger(getClass());
protected boolean doAccepts(DeploymentUnit unit)
{
ScanningMetaData smd = unit.getAttachment(ScanningMetaData.class);
if (smd != null)
{
// recurse
ResourceFilter recurse = createRecurseFilter(smd);
if (recurse != null)
{
ResourceFilter previousRecurse = unit.addAttachment(ResourceFilter.class.getName() + ".recurse", recurse, ResourceFilter.class);
if (previousRecurse != null)
log.debugf("Overridding previous recurse filter: %1s", previousRecurse);
}
// resource
ResourceFilter filter = createResourceFilter(smd);
if (filter != null)
{
ResourceFilter previousFilter = unit.addAttachment(ResourceFilter.class.getName() + ".resource", filter, ResourceFilter.class);
if (previousFilter != null)
log.debugf("Overridding previous resource filter: %1s", previousFilter);
}
}
return true;
}
/**
* Create recurse filter.
*
* @param smd the scanning metadata
* @return recurse filter
*/
protected ResourceFilter createRecurseFilter(ScanningMetaData smd)
{
return new ScanningMetaDataRecurseFilter(smd);
}
/**
* Create resource filter.
*
* @param smd the scanning metadata
* @return resource filter
*/
protected ResourceFilter createResourceFilter(ScanningMetaData smd)
{
return new ScanningMetaDataResourceFilter(smd);
}
/**
* Simple recurse filter.
* It searches for path substring in url string.
*/
private class ScanningMetaDataRecurseFilter implements ResourceFilter
{
private ScanningMetaData smd;
private ScanningMetaDataRecurseFilter(ScanningMetaData smd)
{
this.smd = smd;
}
public boolean accepts(ResourceContext resource)
{
URL url = resource.getUrl();
String urlString = url.toExternalForm();
List<PathMetaData> paths = smd.getPaths();
if (paths != null && paths.isEmpty() == false)
{
for (PathMetaData pmd : paths)
{
String name = pmd.getPathName();
// url contains path
if (urlString.contains(name))
{
return true;
}
}
}
return false;
}
}
}