/*
* JBoss, Home of Professional Open Source.
* Copyright 2010, 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.threads;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.OP_ADDR;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.VALUE;
import org.jboss.as.controller.BasicOperationResult;
import org.jboss.as.controller.ModelUpdateOperationHandler;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.controller.OperationResult;
import org.jboss.as.controller.ResultHandler;
import org.jboss.as.controller.RuntimeTask;
import org.jboss.as.controller.RuntimeTaskContext;
import org.jboss.as.controller.operations.common.Util;
import org.jboss.as.controller.operations.validation.IntRangeValidator;
import org.jboss.as.controller.operations.validation.ParametersValidator;
import org.jboss.dmr.ModelNode;
import org.jboss.msc.service.ServiceController;
/**
* @author <a href="mailto:david.lloyd@redhat.com">David M. Lloyd</a>
* @author Brian Stansberry
*/
public final class ThreadFactoryPriorityUpdate implements ModelUpdateOperationHandler {
private static final long serialVersionUID = 4253625376544201028L;
public static final ThreadFactoryPriorityUpdate INSTANCE = new ThreadFactoryPriorityUpdate();
private final ParametersValidator validator = new ParametersValidator();
private ThreadFactoryPriorityUpdate() {
validator.registerValidator(VALUE, new IntRangeValidator(1, 10, true, true));
}
@Override
public OperationResult execute(final OperationContext context, final ModelNode operation, final ResultHandler resultHandler) throws OperationFailedException {
validator.validate(operation);
final String name = Util.getNameFromAddress(operation.require(OP_ADDR));
ModelNode model = context.getSubModel();
if (!model.isDefined()) {
throw new OperationFailedException(notConfigured(name));
}
ModelNode oldValue = model.get(CommonAttributes.PRIORITY);
final Integer newPriority;
ModelNode newValue;
if (operation.hasDefined(VALUE)) {
newValue = operation.get(VALUE);
newPriority = Integer.valueOf(newValue.resolve().asInt()); // TODO validate resolved value
}
else {
newValue = new ModelNode();
newPriority = null;
}
model.get(CommonAttributes.PRIORITY).set(newValue);
if (context.getRuntimeContext() != null) {
context.getRuntimeContext().setRuntimeTask(new RuntimeTask() {
@Override
public void execute(RuntimeTaskContext context) throws OperationFailedException {
final ServiceController<?> service = context.getServiceRegistry()
.getService(ThreadsServices.threadFactoryName(name));
if (service == null) {
throw new OperationFailedException(notConfigured(name));
} else {
final ThreadFactoryService threadFactoryService = (ThreadFactoryService) service.getValue();
threadFactoryService.setPriority(newPriority);
}
resultHandler.handleResultComplete();
}
});
} else {
resultHandler.handleResultComplete();
}
final ModelNode compensatingOp = operation.clone();
compensatingOp.get(VALUE).set(oldValue);
return new BasicOperationResult(compensatingOp);
}
private ModelNode notConfigured(String name) {
return new ModelNode().set(String.format("No thread factory named %s is configured", name));
}
}