/*
* JBoss, Home of Professional Open Source.
* Copyright 2010, 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.jmx;
import org.jboss.as.controller.BasicOperationResult;
import org.jboss.as.controller.OperationResult;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.ADD;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.DESCRIBE;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.OP;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.OP_ADDR;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.SUBSYSTEM;
import java.util.Collections;
import java.util.List;
import java.util.Locale;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import org.jboss.as.controller.Extension;
import org.jboss.as.controller.ExtensionContext;
import org.jboss.as.controller.ModelQueryOperationHandler;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.ResultHandler;
import org.jboss.as.controller.SubsystemRegistration;
import org.jboss.as.controller.descriptions.DescriptionProvider;
import org.jboss.as.controller.descriptions.common.CommonDescriptions;
import org.jboss.as.controller.operations.common.Util;
import org.jboss.as.controller.parsing.ExtensionParsingContext;
import org.jboss.as.controller.parsing.ParseUtils;
import org.jboss.as.controller.persistence.SubsystemMarshallingContext;
import org.jboss.as.controller.registry.ModelNodeRegistration;
import org.jboss.as.controller.registry.OperationEntry;
import org.jboss.dmr.ModelNode;
import org.jboss.staxmapper.XMLElementReader;
import org.jboss.staxmapper.XMLElementWriter;
import org.jboss.staxmapper.XMLExtendedStreamReader;
import org.jboss.staxmapper.XMLExtendedStreamWriter;
/**
* Domain extension used to initialize the JMX subsystem.
*
* @author Emanuel Muckenhuber
*/
public class JMXExtension implements Extension {
public static final String SUBSYSTEM_NAME = "jmx";
static final JMXSubsystemParser parsers = new JMXSubsystemParser();
/** {@inheritDoc} */
@Override
public void initialize(ExtensionContext context) {
final SubsystemRegistration subsystem = context.registerSubsystem(SUBSYSTEM_NAME);
final ModelNodeRegistration registration = subsystem.registerSubsystemModel(JMXSubsystemProviders.SUBSYSTEM);
// Subsystem operation handlers
registration.registerOperationHandler(ADD, JMXSubsystemAdd.INSTANCE, JMXSubsystemProviders.SUBSYTEM_ADD, false);
registration.registerOperationHandler(DESCRIBE, JMXDescribeHandler.INSTANCE, JMXDescribeHandler.INSTANCE, false, OperationEntry.EntryType.PRIVATE);
registration.registerOperationHandler(JMXConnectorAdd.OPERATION_NAME, JMXConnectorAdd.INSTANCE, JMXSubsystemProviders.JMX_CONNECTOR_ADD, false);
registration.registerOperationHandler(JMXConnectorRemove.OPERATION_NAME, JMXConnectorRemove.INSTANCE, JMXSubsystemProviders.JMX_CONNECTOR_REMOVE, false);
subsystem.registerXMLElementWriter(parsers);
}
/** {@inheritDoc} */
@Override
public void initializeParsers(ExtensionParsingContext context) {
context.setSubsystemXmlMapping(Namespace.CURRENT.getUriString(), parsers);
}
private static ModelNode createAddOperation() {
final ModelNode subsystem = new ModelNode();
subsystem.get(OP).set(ADD);
subsystem.get(OP_ADDR).add(SUBSYSTEM, SUBSYSTEM_NAME);
return subsystem;
}
private static ModelNode createAddConnectorOperation(String serverBinding, String registryBinding) {
final ModelNode connector = new ModelNode();
connector.get(OP).set(JMXConnectorAdd.OPERATION_NAME);
connector.get(OP_ADDR).add(SUBSYSTEM, SUBSYSTEM_NAME);
connector.get(CommonAttributes.SERVER_BINDING).set(serverBinding);
connector.get(CommonAttributes.REGISTRY_BINDING).set(registryBinding);
return connector;
}
static class JMXSubsystemParser implements XMLStreamConstants, XMLElementReader<List<ModelNode>>, XMLElementWriter<SubsystemMarshallingContext> {
/** {@inheritDoc} */
@Override
public void readElement(XMLExtendedStreamReader reader, List<ModelNode> list) throws XMLStreamException {
list.add(createAddOperation());
while(reader.hasNext() && reader.nextTag() != END_ELEMENT) {
final Element element = Element.forName(reader.getLocalName());
switch(element){
case JMX_CONNECTOR: {
parseConnector(reader, list);
break;
} default: {
throw ParseUtils.unexpectedElement(reader);
}
}
}
}
void parseConnector(XMLExtendedStreamReader reader, List<ModelNode> list) throws XMLStreamException {
String serverBinding = null;
String registryBinding = null;
int count = reader.getAttributeCount();
for (int i = 0; i < count; i++) {
final String value = reader.getAttributeValue(i);
final Attribute attribute = Attribute.forName(reader.getAttributeLocalName(i));
switch (attribute) {
case SERVER_BINDING: {
serverBinding = value;
break;
} case REGISTRY_BINDING: {
registryBinding = value;
break;
} default: {
throw ParseUtils.unexpectedAttribute(reader, i);
}
}
}
// Require no content
ParseUtils.requireNoContent(reader);
if(serverBinding == null) {
throw ParseUtils.missingRequired(reader, Collections.singleton(Attribute.SERVER_BINDING));
}
if(registryBinding == null) {
throw ParseUtils.missingRequired(reader, Collections.singleton(Attribute.REGISTRY_BINDING));
}
list.add(createAddConnectorOperation(serverBinding, registryBinding));
}
/** {@inheritDoc} */
@Override
public void writeContent(XMLExtendedStreamWriter writer, SubsystemMarshallingContext context) throws XMLStreamException {
ModelNode node = context.getModelNode();
if(node.has(CommonAttributes.SERVER_BINDING)) {
context.startSubsystemElement(Namespace.CURRENT.getUriString(), false);
writer.writeStartElement(Element.JMX_CONNECTOR.getLocalName());
writer.writeAttribute(Attribute.SERVER_BINDING.getLocalName(), node.get(CommonAttributes.SERVER_BINDING).asString());
writer.writeAttribute(Attribute.REGISTRY_BINDING.getLocalName(), node.get(CommonAttributes.REGISTRY_BINDING).asString());
writer.writeEndElement();
writer.writeEndElement();
}
else {
//TODO seems to be a problem with empty elements cleaning up the queue in FormattingXMLStreamWriter.runAttrQueue
//context.startSubsystemElement(NewNamingExtension.NAMESPACE, true);
context.startSubsystemElement(Namespace.CURRENT.getUriString(), false);
writer.writeEndElement();
}
}
}
private static class JMXDescribeHandler implements ModelQueryOperationHandler, DescriptionProvider {
static final JMXDescribeHandler INSTANCE = new JMXDescribeHandler();
@Override
public OperationResult execute(final OperationContext context, final ModelNode operation, final ResultHandler resultHandler) {
final ModelNode model = context.getSubModel();
final ModelNode node = new ModelNode();
node.add(createAddOperation());
node.add(createAddConnectorOperation(model.require(CommonAttributes.SERVER_BINDING).asString(), model.require(CommonAttributes.REGISTRY_BINDING).asString()));
resultHandler.handleResultFragment(Util.NO_LOCATION, node);
resultHandler.handleResultComplete();
return new BasicOperationResult();
}
@Override
public ModelNode getModelDescription(Locale locale) {
return CommonDescriptions.getSubsystemDescribeOperation(locale);
}
}
}