/*
* 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.GarbageCollectorMXBean;
import java.lang.management.ManagementFactory;
import java.util.Collections;
import java.util.HashSet;
import java.util.NoSuchElementException;
import java.util.Set;
import org.jboss.as.controller.PathAddress;
import org.jboss.as.controller.PathElement;
import org.jboss.as.controller.descriptions.ModelDescriptionConstants;
import org.jboss.as.controller.registry.Resource;
import org.jboss.dmr.ModelNode;
/**
* Abstract superclass of {@link Resource} implementations for the platform mbean resources.
*/
abstract class AbstractPlatformMBeanResource implements Resource.ResourceEntry {
private final PathElement pathElement;
AbstractPlatformMBeanResource(PathElement pathElement) {
this.pathElement = pathElement;
}
@Override
public ModelNode getModel() {
return new ModelNode();
}
@Override
public void writeModel(ModelNode newModel) {
throw new UnsupportedOperationException("A platform mbean resource does not have a writeable model");
}
@Override
public boolean isModelDefined() {
return false;
}
@Override
public Resource getChild(PathElement element) {
if (hasChildren(element.getKey())) {
return getChildEntry(element.getValue());
}
return null;
}
@Override
public Resource requireChild(PathElement address) {
final Resource resource = getChild(address);
if (resource == null) {
throw new NoSuchElementException(address.toString());
}
return resource;
}
@Override
public Resource navigate(PathAddress address) {
if (address.size() == 0) {
return this;
} else {
Resource child = requireChild(address.getElement(0));
return address.size() == 1 ? child : child.navigate(address.subAddress(1));
}
}
@Override
public Set<Resource.ResourceEntry> getChildren(String childType) {
if (!hasChildren(childType)) {
return Collections.emptySet();
} else {
Set<Resource.ResourceEntry> result = new HashSet<Resource.ResourceEntry>();
for (String name : getChildrenNames()) {
result.add(getChildEntry(name));
}
return result;
}
}
@Override
public boolean hasChildren(String childType) {
return getChildTypes().contains(childType);
}
@Override
public boolean hasChild(PathElement element) {
return getChildrenNames(element.getKey()).contains(element.getValue());
}
@Override
public Set<String> getChildrenNames(String childType) {
if (hasChildren(childType)) {
return getChildrenNames();
} else {
return Collections.emptySet();
}
}
@Override
public void registerChild(PathElement address, Resource resource) {
throw new UnsupportedOperationException("Adding child resources is not supported");
}
@Override
public Resource removeChild(PathElement address) {
throw new UnsupportedOperationException("Removing child resources is not supported");
}
@Override
public boolean isRuntime() {
return true;
}
@Override
public boolean isProxy() {
return false;
}
@Override
public Resource clone() {
try {
return Resource.class.cast(super.clone());
} catch (CloneNotSupportedException e) {
throw new IllegalStateException("impossible");
}
}
@Override
public String getName() {
return pathElement.getValue();
}
@Override
public PathElement getPathElement() {
return pathElement;
}
abstract ResourceEntry getChildEntry(String name);
abstract Set<String> getChildrenNames();
}