/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, 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.system.server.profileservice.repository;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.jboss.profileservice.spi.Profile;
import org.jboss.profileservice.spi.ProfileFactory;
import org.jboss.profileservice.spi.ProfileKey;
import org.jboss.profileservice.spi.metadata.ProfileMetaData;
import org.jboss.system.server.profile.repository.NoopProfile;
import org.jboss.system.server.profile.repository.metadata.EmptyProfileMetaData;
/**
* A typed profile factory. This delegates the creation of profiles to
* the registered factories, based on the class name of the profile meta data.
*
* @author <a href="mailto:emuckenh@redhat.com">Emanuel Muckenhuber</a>
* @version $Revision$
*/
public class TypedProfileFactory extends AbstractProfileFactory implements ProfileFactory
{
/** The profile factories. */
private Map<String, AbstractProfileFactory> factories = new ConcurrentHashMap<String, AbstractProfileFactory>();
/** The locally handled types. */
public static final Collection<String> types;
static
{
types = Arrays.asList(EmptyProfileMetaData.class.getName());
}
public String[] getTypes()
{
return types.toArray(new String[types.size()]);
}
public Profile createProfile(ProfileKey key, ProfileMetaData metaData, List<ProfileKey> subProfiles) throws Exception
{
if(key == null)
throw new IllegalArgumentException("Null profile key.");
if(metaData == null)
throw new IllegalArgumentException("Null profile meta data");
String profileType = metaData.getClass().getName();
if(types.contains(profileType))
{
return createNoopProfile(key, metaData, subProfiles);
}
// Delegate to registered factories
return delegateCreateProfile(profileType, key, metaData, subProfiles);
}
/**
* Delegate the creation of the profile to one of the registered
* profile factories.
*
* @param type the meta data type
* @param key the profile key
* @param metaData the profile meta data
* @param subProfiles the sub profiles
* @return the profile
* @throws IllegalArgumentException if there is no factory registered for the meta data type
* @throws Exception for any error
*/
protected Profile delegateCreateProfile(String type, ProfileKey key, ProfileMetaData metaData, List<ProfileKey> subProfiles) throws IllegalArgumentException, Exception
{
AbstractProfileFactory factory = this.factories.get(type);
if(factory == null)
throw new IllegalArgumentException("Unrecognized meta data type: " + type);
return factory.createProfile(key, metaData, subProfiles);
}
/**
* Create a empty profile.
*
* @param key the profile key
* @param metaData the profile meta data
* @param subProfiles the sub profiles
* @return the profile
*/
protected Profile createNoopProfile(ProfileKey key, ProfileMetaData metaData, List<ProfileKey> subProfiles)
{
return new NoopProfile(key, subProfiles);
}
/**
* Add a profile factory.
*
* @param factory the abstract profile factory to add
*/
public void addProfileFactory(AbstractProfileFactory factory)
{
if(factory == null)
throw new IllegalArgumentException("Null profile factory.");
if(factory.getTypes() == null)
throw new IllegalArgumentException("Null factory types.");
for(String type : factory.getTypes())
this.factories.put(type, factory);
}
/**
* Remove a profile factory.
*
* @param factory the abstract profile factory to remove
*/
public void removeProfileFactory(AbstractProfileFactory factory)
{
if(factory == null)
throw new IllegalArgumentException("Null profile factory.");
if(factory.getTypes() == null)
throw new IllegalArgumentException("Null factory types.");
for(String type : factory.getTypes())
this.factories.remove(type);
}
}