/*
* 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 static org.jboss.as.platform.mbean.PlatformMBeanUtil.escapeMBeanName;
import java.lang.management.ManagementFactory;
import java.lang.management.MemoryPoolMXBean;
import java.util.Locale;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.controller.OperationStepHandler;
import org.jboss.as.controller.PathAddress;
import org.jboss.as.controller.descriptions.DescriptionProvider;
import org.jboss.as.controller.descriptions.ModelDescriptionConstants;
import org.jboss.dmr.ModelNode;
/**
* Executes the {@link java.lang.management.MemoryMXBean#gc()} method.
*
* @author Brian Stansberry (c) 2011 Red Hat Inc.
*/
public class MemoryPoolMXBeanResetPeakUsageHandler implements OperationStepHandler, DescriptionProvider {
public static final MemoryPoolMXBeanResetPeakUsageHandler INSTANCE = new MemoryPoolMXBeanResetPeakUsageHandler();
private MemoryPoolMXBeanResetPeakUsageHandler() {
}
@Override
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
try {
getMemoryPoolMXBean(operation).resetPeakUsage();
} catch (SecurityException e) {
throw new OperationFailedException(new ModelNode().set(e.toString()));
}
context.completeStep();
}
@Override
public ModelNode getModelDescription(Locale locale) {
return PlatformMBeanDescriptions.getDescriptionOnlyOperation(locale, PlatformMBeanConstants.MEMORY_POOL + ".reset-peak-usage");
}
private MemoryPoolMXBean getMemoryPoolMXBean(ModelNode operation) throws OperationFailedException {
final String gcName = PathAddress.pathAddress(operation.require(ModelDescriptionConstants.OP_ADDR)).getLastElement().getValue();
MemoryPoolMXBean memoryPoolMXBean = null;
for (MemoryPoolMXBean mbean : ManagementFactory.getMemoryPoolMXBeans()) {
if (gcName.equals(escapeMBeanName(mbean.getName()))) {
memoryPoolMXBean = mbean;
}
}
if (memoryPoolMXBean == null) {
throw new OperationFailedException(new ModelNode().set(String.format("No MemoryPoolMXBean with name %s currently exists")));
}
return memoryPoolMXBean;
}
}