/*
* 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.threads;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.OP_ADDR;
import java.util.List;
import org.jboss.as.controller.AbstractRuntimeOnlyHandler;
import org.jboss.as.controller.AttributeDefinition;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.controller.RunningMode;
import org.jboss.as.controller.descriptions.ModelDescriptionConstants;
import org.jboss.as.controller.operations.common.Util;
import org.jboss.as.controller.registry.ManagementResourceRegistration;
import org.jboss.dmr.ModelNode;
import org.jboss.msc.service.Service;
import org.jboss.msc.service.ServiceController;
import org.jboss.msc.service.ServiceName;
/**
* Base class for operation step handlers that expose thread pool resource metrics.
*
* @author Alexey Loubyansky
*/
public abstract class ThreadPoolMetricsHandler extends AbstractRuntimeOnlyHandler {
private final List<AttributeDefinition> metrics;
private final ServiceName serviceNameBase;
protected ThreadPoolMetricsHandler(List<AttributeDefinition> metrics, ServiceName serviceNameBase) {
this.metrics = metrics;
this.serviceNameBase = serviceNameBase;
}
public void registerAttributes(final ManagementResourceRegistration registration) {
for (AttributeDefinition metric : metrics) {
registration.registerMetric(metric, this);
}
}
@Override
protected void executeRuntimeStep(OperationContext context, ModelNode operation) throws OperationFailedException {
final String attributeName = operation.require(ModelDescriptionConstants.NAME).asString();
if (context.getRunningMode() == RunningMode.NORMAL) {
ServiceController<?> serviceController = getService(context, operation);
final Service<?> service = serviceController.getService();
setResult(context, attributeName, service);
}
context.completeStep(OperationContext.RollbackHandler.NOOP_ROLLBACK_HANDLER);
}
protected abstract void setResult(OperationContext context, String attributeName, Service<?> service) throws OperationFailedException;
protected ServiceController<?> getService(final OperationContext context, final ModelNode operation)
throws OperationFailedException {
final String name = Util.getNameFromAddress(operation.require(OP_ADDR));
ServiceController<?> controller = context.getServiceRegistry(false).getService(serviceNameBase.append(name));
if (controller == null) {
throw ThreadsLogger.ROOT_LOGGER.threadPoolServiceNotFoundForMetrics(serviceNameBase.append(name));
}
return controller;
}
}