GraviaSubsystemParser.java

/*
 * #%L
 * Gravia :: Container :: WildFly :: Extension
 * %%
 * Copyright (C) 2010 - 2014 JBoss by Red Hat
 * %%
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */

package org.wildfly.extension.gravia.parser;

import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.ADD;
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 static org.jboss.as.controller.parsing.ParseUtils.unexpectedElement;

import java.util.List;

import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;

import org.jboss.dmr.ModelNode;
import org.jboss.staxmapper.XMLElementReader;
import org.jboss.staxmapper.XMLExtendedStreamReader;

/**
 * Parse Gravia subsystem configuration
 *
 * @author Thomas.Diesler@jboss.com
 * @since 23-Aug-2013
 */
final class GraviaSubsystemParser implements Namespace10, XMLStreamConstants, XMLElementReader<List<ModelNode>> {

    static XMLElementReader<List<ModelNode>> INSTANCE = new GraviaSubsystemParser();

    // hide ctor
    private GraviaSubsystemParser() {
    }

    @Override
    public void readElement(XMLExtendedStreamReader reader, List<ModelNode> operations) throws XMLStreamException {

        ModelNode address = new ModelNode();
        address.add(SUBSYSTEM, GraviaExtension.SUBSYSTEM_NAME);
        address.protect();

        ModelNode subsystemAdd = new ModelNode();
        subsystemAdd.get(OP).set(ADD);
        subsystemAdd.get(OP_ADDR).set(address);
        operations.add(subsystemAdd);

        while (reader.hasNext() && reader.nextTag() != END_ELEMENT) {
            switch (Namespace.forUri(reader.getNamespaceURI())) {
                case VERSION_1_0: {
                    final Element element = Element.forName(reader.getLocalName());
                    switch (element) {
                        default:
                            throw unexpectedElement(reader);
                    }
                }
                default:
                    continue;
            }
        }
    }
}