/*
* 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.controller.operations.validation.ModelTypeValidator;
import org.jboss.as.controller.registry.AttributeAccess;
import org.jboss.as.controller.registry.ManagementResourceRegistration;
import org.jboss.dmr.ModelNode;
import org.jboss.dmr.ModelType;
/**
* Handles read-attribute and write-attribute for the resource representing {@link java.lang.management.CompilationMXBean}.
*
* @author Brian Stansberry (c) 2011 Red Hat Inc.
*/
public class MemoryMXBeanAttributeHandler extends AbstractPlatformMBeanAttributeHandler {
public static MemoryMXBeanAttributeHandler INSTANCE = new MemoryMXBeanAttributeHandler();
private MemoryMXBeanAttributeHandler() {
writeAttributeValidator.registerValidator(ModelDescriptionConstants.VALUE, new ModelTypeValidator(ModelType.BOOLEAN));
}
@Override
protected void executeReadAttribute(OperationContext context, ModelNode operation) throws OperationFailedException {
final String name = operation.require(ModelDescriptionConstants.NAME).asString();
if (PlatformMBeanUtil.JVM_MAJOR_VERSION > 6 && PlatformMBeanConstants.OBJECT_NAME.equals(name)) {
context.getResult().set(ManagementFactory.MEMORY_MXBEAN_NAME);
} else if (PlatformMBeanConstants.OBJECT_PENDING_FINALIZATION_COUNT.equals(name)) {
context.getResult().set(ManagementFactory.getMemoryMXBean().getObjectPendingFinalizationCount());
} else if (PlatformMBeanConstants.HEAP_MEMORY_USAGE.equals(name)) {
final ModelNode mu = PlatformMBeanUtil.getDetypedMemoryUsage(ManagementFactory.getMemoryMXBean().getHeapMemoryUsage());
context.getResult().set(mu);
} else if (PlatformMBeanConstants.NON_HEAP_MEMORY_USAGE.equals(name)) {
final ModelNode mu = PlatformMBeanUtil.getDetypedMemoryUsage(ManagementFactory.getMemoryMXBean().getNonHeapMemoryUsage());
context.getResult().set(mu);
} else if (PlatformMBeanConstants.VERBOSE.equals(name)) {
context.getResult().set(ManagementFactory.getMemoryMXBean().isVerbose());
} else if (PlatformMBeanConstants.MEMORY_METRICS.contains(name)
|| PlatformMBeanConstants.MEMORY_READ_WRITE_ATTRIBUTES.contains(name)) {
// Bug
throw new IllegalStateException(String.format("Read support for attribute %s was not properly implemented", name));
} else {
// Shouldn't happen; the global handler should reject
throw unknownAttribute(operation);
}
}
@Override
protected void executeWriteAttribute(OperationContext context, ModelNode operation) throws OperationFailedException {
final String name = operation.require(ModelDescriptionConstants.NAME).asString();
if (PlatformMBeanConstants.VERBOSE.equals(name)) {
ManagementFactory.getMemoryMXBean().setVerbose(operation.require(ModelDescriptionConstants.VALUE).asBoolean());
} else if (PlatformMBeanConstants.MEMORY_READ_WRITE_ATTRIBUTES.contains(name)) {
// Bug
throw new IllegalStateException(String.format("Write support for attribute %s was not properly implemented", name));
} else {
// Shouldn't happen; the global handler should reject
throw unknownAttribute(operation);
}
}
@Override
protected void register(ManagementResourceRegistration registration) {
if (PlatformMBeanUtil.JVM_MAJOR_VERSION > 6) {
registration.registerReadOnlyAttribute(PlatformMBeanConstants.OBJECT_NAME, this, AttributeAccess.Storage.RUNTIME);
}
for (String attribute : PlatformMBeanConstants.MEMORY_METRICS) {
registration.registerMetric(attribute, this);
}
for (String attribute : PlatformMBeanConstants.MEMORY_READ_WRITE_ATTRIBUTES) {
registration.registerReadWriteAttribute(attribute, this, this, AttributeAccess.Storage.RUNTIME);
}
}
}