/*
* 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 java.lang.management.ThreadInfo;
import java.lang.management.ThreadMXBean;
import java.util.List;
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.descriptions.DescriptionProvider;
import org.jboss.as.controller.operations.validation.IntRangeValidator;
import org.jboss.as.controller.operations.validation.ListValidator;
import org.jboss.as.controller.operations.validation.LongRangeValidator;
import org.jboss.as.controller.operations.validation.ModelTypeValidator;
import org.jboss.as.controller.operations.validation.ParametersValidator;
import org.jboss.dmr.ModelNode;
import org.jboss.dmr.ModelType;
/**
* Executes the {@link java.lang.management.ThreadMXBean} {@code getThreadInfo} methods that return an array
* of thread ids.
*
* @author Brian Stansberry (c) 2011 Red Hat Inc.
*/
public class ThreadMXBeanThreadInfosHandler implements OperationStepHandler, DescriptionProvider {
public static final ThreadMXBeanThreadInfosHandler INSTANCE = new ThreadMXBeanThreadInfosHandler();
private final ParametersValidator idsValidator = new ParametersValidator();
private final ParametersValidator depthValidator = new ParametersValidator();
private final ParametersValidator lockedValidator = new ParametersValidator();
private ThreadMXBeanThreadInfosHandler() {
idsValidator.registerValidator(PlatformMBeanConstants.IDS, new ListValidator(new LongRangeValidator(1)));
depthValidator.registerValidator(PlatformMBeanConstants.MAX_DEPTH, new IntRangeValidator(1, Integer.MAX_VALUE, false, false));
lockedValidator.registerValidator(PlatformMBeanConstants.LOCKED_MONITORS, new ModelTypeValidator(ModelType.BOOLEAN));
lockedValidator.registerValidator(PlatformMBeanConstants.LOCKED_SYNCHRONIZERS, new ModelTypeValidator(ModelType.BOOLEAN));
}
@Override
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
try {
final long[] ids = getIds(operation);
ThreadMXBean mbean = ManagementFactory.getThreadMXBean();
ThreadInfo[] infos = null;
if (operation.hasDefined(PlatformMBeanConstants.LOCKED_MONITORS)) {
lockedValidator.validate(operation);
infos = mbean.getThreadInfo(ids,
operation.require(PlatformMBeanConstants.LOCKED_MONITORS).asBoolean(),
operation.require(PlatformMBeanConstants.LOCKED_SYNCHRONIZERS).asBoolean());
}else if (operation.hasDefined(PlatformMBeanConstants.MAX_DEPTH)) {
depthValidator.validate(operation);
infos = mbean.getThreadInfo(ids, operation.require(PlatformMBeanConstants.MAX_DEPTH).asInt());
} else {
infos = mbean.getThreadInfo(ids);
}
final ModelNode result = context.getResult();
if (infos != null) {
result.setEmptyList();
for (ThreadInfo info : infos) {
if (info != null) {
result.add(PlatformMBeanUtil.getDetypedThreadInfo(info, mbean.isThreadCpuTimeSupported()));
} else {
// Add an undefined placeholder
result.add();
}
}
}
} catch (SecurityException e) {
throw new OperationFailedException(new ModelNode().set(e.toString()));
}
context.completeStep();
}
@Override
public ModelNode getModelDescription(Locale locale) {
return PlatformMBeanDescriptions.getGetThreadInfosDescripton(locale);
}
private long[] getIds(final ModelNode operation) throws OperationFailedException {
idsValidator.validate(operation);
final List<ModelNode> idNodes = operation.require(PlatformMBeanConstants.IDS).asList();
final long[] ids = new long[idNodes.size()];
for (int i = 0; i < ids.length; i++) {
ids[i] = idNodes.get(i).asLong();
}
return ids;
}
}