/*
* JBoss, Home of Professional Open Source.
* Copyright 2015, Red Hat, Inc., 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.as.clustering.controller.transform;
import java.util.Collection;
import org.jboss.as.clustering.controller.Attribute;
import org.jboss.as.controller.PathAddress;
import org.jboss.as.controller.registry.Resource;
import org.jboss.as.controller.transform.TransformationContext;
import org.jboss.as.controller.transform.description.DiscardPolicy;
import org.jboss.as.controller.transform.description.DynamicDiscardPolicy;
import org.jboss.dmr.ModelNode;
/**
* Convenience implementation of {@link DynamicDiscardPolicy} that silently discards (i.e. {@link DiscardPolicy#SILENT}) if none of the attributes are defined;
* rejects otherwise (i.e. {@link DiscardPolicy#REJECT_AND_WARN}.
*
* @author Radoslav Husar
* @version August 2015
*/
public class UndefinedAttributesDiscardPolicy implements DynamicDiscardPolicy {
private final Collection<Attribute> attributes;
public UndefinedAttributesDiscardPolicy(Collection<Attribute> attributes) {
this.attributes = attributes;
}
@Override
public DiscardPolicy checkResource(TransformationContext context, PathAddress address) {
ModelNode model = Resource.Tools.readModel(context.readResourceFromRoot(address));
for (Attribute attribute : this.attributes) {
if (model.hasDefined(attribute.getName())) {
return DiscardPolicy.REJECT_AND_WARN;
}
}
return DiscardPolicy.SILENT;
}
}