/*
* JBoss, Home of Professional Open Source
* Copyright 2007, 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.structure.spi.scope.helpers;
import java.util.ArrayList;
import org.jboss.deployers.structure.spi.DeploymentContext;
import org.jboss.deployers.structure.spi.scope.ScopeBuilder;
import org.jboss.metadata.plugins.context.AbstractMetaDataContext;
import org.jboss.metadata.plugins.loader.memory.MemoryMetaDataLoader;
import org.jboss.metadata.spi.repository.MutableMetaDataRepository;
import org.jboss.metadata.spi.retrieval.MetaDataRetrieval;
import org.jboss.metadata.spi.scope.CommonLevels;
import org.jboss.metadata.spi.scope.Scope;
import org.jboss.metadata.spi.scope.ScopeKey;
/**
* DefaultScopeBuilder.
*
* @author <a href="adrian@jboss.com">Adrian Brock</a>
* @version $Revision: 1.1 $
*/
public class DefaultScopeBuilder implements ScopeBuilder
{
/** The singleton instance */
public static final DefaultScopeBuilder INSTANCE = new DefaultScopeBuilder();
public ScopeKey getDeploymentScope(DeploymentContext context)
{
if (context == null)
throw new IllegalArgumentException("Null context");
DeploymentContext top = context.getTopLevel();
ScopeKey result = ScopeKey.DEFAULT_SCOPE.clone();
result.addScope(CommonLevels.APPLICATION, top.getName());
result.addScope(CommonLevels.DEPLOYMENT, context.getName());
return result;
}
public ScopeKey getMutableDeploymentScope(DeploymentContext context)
{
if (context == null)
throw new IllegalArgumentException("Null context");
if (context.isTopLevel())
return new ScopeKey(CommonLevels.APPLICATION, context.getName());
else
return new ScopeKey(CommonLevels.DEPLOYMENT, context.getName());
}
public ScopeKey getComponentScope(DeploymentContext context)
{
if (context == null)
throw new IllegalArgumentException("Null context");
DeploymentContext parent = context;
while (parent.isComponent())
{
parent = context.getParent();
if (parent == null)
throw new IllegalStateException("Component has no regular parent?");
}
ScopeKey result = parent.getScope().clone();
result.addScope(CommonLevels.INSTANCE, context.getName());
return result;
}
public ScopeKey getMutableComponentScope(DeploymentContext context)
{
if (context == null)
throw new IllegalArgumentException("Null context");
return new ScopeKey(CommonLevels.INSTANCE, context.getName());
}
public void initMetaDataRetrieval(MutableMetaDataRepository repository, DeploymentContext context)
{
if (repository == null)
throw new IllegalArgumentException("Null repository");
if (context == null)
throw new IllegalArgumentException("Null context");
ScopeKey scopeKey = context.getScope();
ArrayList<MetaDataRetrieval> retrievals = new ArrayList<MetaDataRetrieval>();
for (Scope scope : scopeKey.getScopes())
{
ScopeKey thisScope = new ScopeKey(scope);
MetaDataRetrieval retrieval = repository.getMetaDataRetrieval(thisScope);
if (retrieval == null)
{
retrieval = new MemoryMetaDataLoader(thisScope);
repository.addMetaDataRetrieval(retrieval);
}
retrievals.add(0, retrieval);
}
AbstractMetaDataContext metaDataContext = new AbstractMetaDataContext(null, retrievals);
repository.addMetaDataRetrieval(metaDataContext);
}
public void initMutableMetaDataRetrieval(MutableMetaDataRepository repository, DeploymentContext context)
{
if (repository == null)
throw new IllegalArgumentException("Null repository");
if (context == null)
throw new IllegalArgumentException("Null context");
ScopeKey scopeKey = context.getMutableScope();
MetaDataRetrieval retrieval = repository.getMetaDataRetrieval(scopeKey);
if (retrieval == null)
{
retrieval = new MemoryMetaDataLoader(scopeKey);
repository.addMetaDataRetrieval(retrieval);
}
AbstractMetaDataContext metaDataContext = new AbstractMetaDataContext(null, retrieval);
repository.addMetaDataRetrieval(metaDataContext);
}
}