/*
* 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.OperationDefinition;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.controller.OperationStepHandler;
import org.jboss.as.controller.SimpleOperationDefinitionBuilder;
import org.jboss.dmr.ModelNode;
import org.jboss.dmr.ModelType;
/**
* Executes the {@link java.lang.management.ThreadMXBean#findDeadlockedThreads()} method.
*
* @author Brian Stansberry (c) 2011 Red Hat Inc.
*/
public class ThreadMXBeanFindDeadlockedThreadsHandler implements OperationStepHandler {
static final OperationDefinition DEFINITION = new SimpleOperationDefinitionBuilder(PlatformMBeanConstants.FIND_DEADLOCKED_THREADS, PlatformMBeanUtil.getResolver(PlatformMBeanConstants.THREADING))
.setReplyType(ModelType.LIST)
.setReplyValueType(ModelType.LONG)
.setRuntimeOnly()
.setReadOnly()
.allowReturnNull()
.build();
public static final ThreadMXBeanFindDeadlockedThreadsHandler INSTANCE = new ThreadMXBeanFindDeadlockedThreadsHandler();
private ThreadMXBeanFindDeadlockedThreadsHandler() {
}
@Override
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
try {
long[] ids = ManagementFactory.getThreadMXBean().findDeadlockedThreads();
final ModelNode result = context.getResult();
if (ids != null) {
result.setEmptyList();
for (long id : ids) {
result.add(id);
}
}
} catch (SecurityException e) {
throw new OperationFailedException(e.toString());
}
}
}