/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, 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.controller;
import java.util.Set;
import org.jboss.dmr.ModelNode;
import org.jboss.dmr.ModelType;
/**
* This implementation propagates properties present in the current
* attribute value but missing from the new value.
* Although, if the new value is of type UNDEFINED, the value
* will remain UNDEFINED.
*
* @author Alexey Loubyansky
*/
public class PropagatingCorrector implements ParameterCorrector {
public static final PropagatingCorrector INSTANCE = new PropagatingCorrector();
/* (non-Javadoc)
* @see org.jboss.as.controller.AttributeValueCorrector#correct(org.jboss.dmr.ModelNode, org.jboss.dmr.ModelNode)
*/
@Override
public ModelNode correct(ModelNode newValue, ModelNode currentValue) {
if(newValue.getType() == ModelType.UNDEFINED) {
return newValue;
}
if(newValue.getType() != ModelType.OBJECT || currentValue.getType() != ModelType.OBJECT) {
return newValue;
}
final Set<String> operationKeys = newValue.keys();
final Set<String> currentKeys = currentValue.keys();
for(String currentKey : currentKeys) {
if(!operationKeys.contains(currentKey)) {
newValue.get(currentKey).set(currentValue.get(currentKey));
}
}
return newValue;
}
}