/*
* 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.platform.mbean;
import java.lang.management.ManagementFactory;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.controller.descriptions.ModelDescriptionConstants;
import org.jboss.as.platform.mbean.logging.PlatformMBeanLogger;
import org.jboss.dmr.ModelNode;
/**
* Handles read-attribute and write-attribute for the resource representing {@link java.lang.management.OperatingSystemMXBean}.
*
* @author Brian Stansberry (c) 2011 Red Hat Inc.
*/
class OperatingSystemMXBeanAttributeHandler extends AbstractPlatformMBeanAttributeHandler {
static final OperatingSystemMXBeanAttributeHandler INSTANCE = new OperatingSystemMXBeanAttributeHandler();
private OperatingSystemMXBeanAttributeHandler() {
}
@Override
protected void executeReadAttribute(OperationContext context, ModelNode operation) throws OperationFailedException {
final String name = operation.require(ModelDescriptionConstants.NAME).asString();
try {
if ((PlatformMBeanConstants.OBJECT_NAME.getName().equals(name))
|| OperatingSystemResourceDefinition.OPERATING_SYSTEM_READ_ATTRIBUTES.contains(name)
|| OperatingSystemResourceDefinition.OPERATING_SYSTEM_METRICS.contains(name)) {
storeResult(name, context.getResult());
} else {
// Shouldn't happen; the global handler should reject
throw unknownAttribute(operation);
}
} catch (SecurityException e) {
throw new OperationFailedException(e.toString());
}
}
@Override
protected void executeWriteAttribute(OperationContext context, ModelNode operation) throws OperationFailedException {
// Shouldn't happen; the global handler should reject
throw unknownAttribute(operation);
}
static void storeResult(final String name, final ModelNode store) {
if (PlatformMBeanConstants.OBJECT_NAME.getName().equals(name)) {
store.set(ManagementFactory.OPERATING_SYSTEM_MXBEAN_NAME);
} else if (ModelDescriptionConstants.NAME.equals(name)) {
store.set(ManagementFactory.getOperatingSystemMXBean().getName());
} else if (PlatformMBeanConstants.ARCH.equals(name)) {
store.set(ManagementFactory.getOperatingSystemMXBean().getArch());
} else if (PlatformMBeanConstants.VERSION.equals(name)) {
store.set(ManagementFactory.getOperatingSystemMXBean().getVersion());
} else if (PlatformMBeanConstants.AVAILABLE_PROCESSORS.equals(name)) {
store.set(ManagementFactory.getOperatingSystemMXBean().getAvailableProcessors());
} else if (PlatformMBeanConstants.SYSTEM_LOAD_AVERAGE.equals(name)) {
store.set(ManagementFactory.getOperatingSystemMXBean().getSystemLoadAverage());
} else if (OperatingSystemResourceDefinition.OPERATING_SYSTEM_READ_ATTRIBUTES.contains(name)
|| OperatingSystemResourceDefinition.OPERATING_SYSTEM_METRICS.contains(name)) {
// Bug
throw PlatformMBeanLogger.ROOT_LOGGER.badReadAttributeImpl(name);
}
}
}