/*
* 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.controller.extension;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.*;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.jboss.as.controller.Extension;
import org.jboss.as.controller.PathAddress;
import org.jboss.as.controller.PathElement;
import org.jboss.as.controller.registry.PlaceholderResource;
import org.jboss.as.controller.registry.Resource;
import org.jboss.dmr.ModelNode;
/**
* {@link Resource} representing an {@link Extension}.
*
* @author Brian Stansberry (c) 2011 Red Hat Inc.
*/
public class ExtensionResource implements Resource.ResourceEntry {
private static final Set<String> CHILD_TYPES = Collections.unmodifiableSet(new HashSet<String>(Arrays.asList(SUBSYSTEM)));
private final String moduleName;
private final ExtensionRegistry extensionRegistry;
public ExtensionResource(String moduleName, ExtensionRegistry extensionRegistry) {
assert moduleName != null : "moduleName is null";
assert extensionRegistry != null : "extensionRegistry is null";
this.moduleName = moduleName;
this.extensionRegistry = extensionRegistry;
}
@Override
public String getName() {
return moduleName;
}
@Override
public PathElement getPathElement() {
return PathElement.pathElement(EXTENSION, moduleName);
}
@Override
public ModelNode getModel() {
final ModelNode model = new ModelNode();
model.get(ExtensionResourceDefinition.MODULE.getName()).set(moduleName);
return model;
}
@Override
public void writeModel(ModelNode newModel) {
// ApplyRemoteMasterDomainModelHandler does this. Just ignore it.
}
@Override
public boolean isModelDefined() {
return true;
}
@Override
public boolean hasChild(PathElement element) {
return getChildrenNames(element.getKey()).contains(element.getValue());
}
@Override
public Resource getChild(PathElement element) {
Resource result = null;
if (SUBSYSTEM.equals(element.getKey())) {
Map<String, SubsystemInformation> entry = extensionRegistry.getAvailableSubsystems(moduleName);
SubsystemInformation info = entry != null ? entry.get(element.getValue()) : null;
if (info != null) {
return new SubsystemResource(element.getValue(), info);
}
}
return result;
}
@Override
public Resource requireChild(PathElement element) {
Resource child = getChild(element);
if (child == null) {
throw new NoSuchResourceException(element);
}
return child;
}
@Override
public boolean hasChildren(String childType) {
return getChildren(childType).size() > 0;
}
@Override
public Resource navigate(PathAddress address) {
int size = address.size();
if (size == 0) {
return this;
}
PathElement pe = address.getElement(0);
Resource child = getChild(pe);
if (child != null) {
return size == 1 ? child : child.navigate(address.subAddress(1));
} else {
throw new NoSuchResourceException(pe);
}
}
@Override
public Set<String> getChildTypes() {
return CHILD_TYPES;
}
@Override
public Set<String> getChildrenNames(String childType) {
Set<String> result = null;
if (SUBSYSTEM.equals(childType)) {
Map<String, SubsystemInformation> info = extensionRegistry.getAvailableSubsystems(moduleName);
result = info != null ? new HashSet<String>(info.keySet()) : null;
}
return result != null ? result : Collections.<String>emptySet();
}
@Override
public Set<ResourceEntry> getChildren(String childType) {
Set<ResourceEntry> result = null;
if (SUBSYSTEM.equals(childType)) {
result = new HashSet<ResourceEntry>();
Map<String, SubsystemInformation> entry = extensionRegistry.getAvailableSubsystems(moduleName);
if (entry != null) {
for (Map.Entry<String, SubsystemInformation> subsys : entry.entrySet()) {
result.add(new SubsystemResource(subsys.getKey(), subsys.getValue()));
}
}
}
return result;
}
@Override
public void registerChild(PathElement address, Resource resource) {
throw new UnsupportedOperationException();
}
@Override
public Resource removeChild(PathElement address) {
throw new UnsupportedOperationException();
}
@Override
public boolean isRuntime() {
return false;
}
@Override
public boolean isProxy() {
return false;
}
@Override
public ExtensionResource clone() {
return new ExtensionResource(moduleName, extensionRegistry);
}
private static class SubsystemResource extends PlaceholderResource.PlaceholderResourceEntry {
private final SubsystemInformation subsystemInformation;
public SubsystemResource(final String name, SubsystemInformation subsystemInformation) {
super(SUBSYSTEM, name);
this.subsystemInformation = subsystemInformation;
}
@Override
public ModelNode getModel() {
final ModelNode model = new ModelNode();
final ModelNode majorNode = model.get(ExtensionSubsystemResourceDefinition.MAJOR_VERSION.getName());
Integer major = subsystemInformation.getManagementInterfaceMajorVersion();
if (major != null) {
majorNode.set(major.intValue());
}
final ModelNode minorNode = model.get(ExtensionSubsystemResourceDefinition.MINOR_VERSION.getName());
Integer minor = subsystemInformation.getManagementInterfaceMinorVersion();
if (minor != null) {
minorNode.set(minor.intValue());
}
final ModelNode microNode = model.get(ExtensionSubsystemResourceDefinition.MICRO_VERSION.getName());
Integer micro = subsystemInformation.getManagementInterfaceMicroVersion();
if (micro != null) {
microNode.set(micro.intValue());
}
final ModelNode xmlNode = model.get(ExtensionSubsystemResourceDefinition.XML_NAMESPACES.getName()).setEmptyList();
List<String> namespaces = subsystemInformation.getXMLNamespaces();
if (namespaces != null) {
for (String namespace : namespaces) {
xmlNode.add(namespace);
}
}
return model;
}
@Override
public boolean isModelDefined() {
return true;
}
@Override
public PlaceholderResourceEntry clone() {
return new SubsystemResource(getName(), subsystemInformation);
}
}
}