RTSSubsystemExtension.java example

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wildfly-master
/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2013, 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.wildfly.extension.rts;

import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.SUBSYSTEM;

import org.jboss.as.controller.Extension;
import org.jboss.as.controller.ExtensionContext;
import org.jboss.as.controller.ModelVersion;
import org.jboss.as.controller.PathElement;
import org.jboss.as.controller.SubsystemRegistration;
import org.jboss.as.controller.descriptions.StandardResourceDescriptionResolver;
import org.jboss.as.controller.operations.common.GenericSubsystemDescribeHandler;
import org.jboss.as.controller.parsing.ExtensionParsingContext;
import org.jboss.as.controller.registry.ManagementResourceRegistration;
import org.jboss.msc.service.ServiceName;

/**
 *
 * @author <a href="mailto:gytis@redhat.com">Gytis Trikleris</a>
 *
 */
public final class RTSSubsystemExtension implements Extension {

    /**
     * The name space used for the {@code substystem} element
     */
    public static final String NAMESPACE = "urn:jboss:domain:rts:1.0";

    /**
     * The name of our subsystem within the model.
     */
    public static final String SUBSYSTEM_NAME = "rts";

    public static final ServiceName RTS = ServiceName.JBOSS.append(SUBSYSTEM_NAME);

    public static final ServiceName COORDINATOR = RTS.append("coordinator");

    public static final ServiceName PARTICIPANT = RTS.append("participant");

    public static final ServiceName VOLATILE_PARTICIPANT = RTS.append("volatile-participant");

    public static final ServiceName INBOUND_BRIDGE = RTS.append("inbound-bridge");

    protected static final PathElement SUBSYSTEM_PATH = PathElement.pathElement(SUBSYSTEM, SUBSYSTEM_NAME);

    private static final String RESOURCE_NAME = RTSSubsystemExtension.class.getPackage().getName() + ".LocalDescriptions";

    private static final ModelVersion CURRENT_MODEL_VERSION = ModelVersion.create(1, 0, 0);

    /**
     * The parser used for parsing our subsystem
     */
    private final RTSSubsystemParser parser = new RTSSubsystemParser();

    static StandardResourceDescriptionResolver getResourceDescriptionResolver(final String keyPrefix) {
        String prefix = SUBSYSTEM_NAME + (keyPrefix == null ? "" : "." + keyPrefix);
        return new StandardResourceDescriptionResolver(prefix, RESOURCE_NAME, RTSSubsystemExtension.class.getClassLoader(),
                true, false);
    }

    @Override
    public void initializeParsers(ExtensionParsingContext context) {
        context.setSubsystemXmlMapping(SUBSYSTEM_NAME, NAMESPACE, () -> parser);
    }

    @Override
    public void initialize(ExtensionContext context) {
        final SubsystemRegistration subsystem = context.registerSubsystem(SUBSYSTEM_NAME, CURRENT_MODEL_VERSION);
        final ManagementResourceRegistration registration = subsystem.registerSubsystemModel(RTSSubsystemDefinition.INSTANCE);
        registration.registerOperationHandler(GenericSubsystemDescribeHandler.DEFINITION, GenericSubsystemDescribeHandler.INSTANCE);

        subsystem.registerXMLElementWriter(parser);
    }

}