/*
* 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 org.jboss.dmr.ModelNode;
import java.util.Collection;
import org.jboss.dmr.ModelType;
/**
* Simple {@link AbstractWriteAttributeHandler} that triggers putting the process in a restart-required state if attribute that
* has flag {@link org.jboss.as.controller.registry.AttributeAccess.Flag#RESTART_JVM} otherwise it puts process in
* reload-required state.
*
* @author Brian Stansberry (c) 2011 Red Hat Inc.
*/
public class ReloadRequiredWriteAttributeHandler extends AbstractWriteAttributeHandler<Void> {
public ReloadRequiredWriteAttributeHandler(final AttributeDefinition... definitions) {
super(definitions);
}
public ReloadRequiredWriteAttributeHandler(final Collection<AttributeDefinition> definitions) {
super(definitions);
}
@Override
protected boolean applyUpdateToRuntime(OperationContext context, ModelNode operation, String attributeName, ModelNode resolvedValue, ModelNode currentValue, HandbackHolder<Void> voidHandback) throws OperationFailedException {
// Some might ask why we are comparing a resolvedValue with the currentValuewhich is not resolved.
// Well the issue is that the context that would permit to resolve the currentValue might have changed thus
// the resolved value for the currentValue wouldn't be correct.
// In fact we just can't resolve the currentValue without any doubt. When in doubt reload, so we will return true in this case.
// For example if the currentValue is ${foo} and that for some reason foo has changed in between, then we should reload even if now ${foo} resolves
// as resolvedValue.
ModelNode resolvedTypedValue = convertToType(attributeName, resolvedValue);
return !resolvedTypedValue.equals(currentValue);
}
private ModelNode convertToType(String attributeName, ModelNode resolvedValue) {
AttributeDefinition attributeDefinition = getAttributeDefinition(attributeName);
ModelType type;
if (attributeDefinition != null) {
type = attributeDefinition.getType();
} else {
type = ModelType.STRING;
}
ModelNode converted = resolvedValue.clone();
try {
switch (type) {
case BIG_DECIMAL:
converted.set(resolvedValue.asBigDecimal());
break;
case BIG_INTEGER:
converted.set(resolvedValue.asBigInteger());
break;
case BOOLEAN:
converted.set(resolvedValue.asBoolean());
break;
case BYTES:
converted.set(resolvedValue.asBytes());
break;
case DOUBLE:
converted.set(resolvedValue.asDouble());
break;
case INT:
converted.set(resolvedValue.asInt());
break;
case LIST:
break;
case LONG:
converted.set(resolvedValue.asLong());
break;
case OBJECT:
break;
case PROPERTY:
break;
case STRING:
converted.set(resolvedValue.asString());
break;
case TYPE:
converted.set(resolvedValue.asType());
break;
case UNDEFINED:
break;
}
} catch (IllegalArgumentException ex) {
}
return converted;
}
@Override
protected void revertUpdateToRuntime(OperationContext context, ModelNode operation, String attributeName, ModelNode valueToRestore, ModelNode resolvedValue, Void handback) {
// no-op
}
}