/*
* 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.ADD;
import java.util.EnumSet;
import java.util.List;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import org.jboss.as.controller.PathAddress;
import org.jboss.as.controller.operations.common.Util;
import org.jboss.as.controller.parsing.ParseUtils;
import org.jboss.as.controller.persistence.SubsystemMarshallingContext;
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;
import org.wildfly.extension.rts.configuration.Attribute;
import org.wildfly.extension.rts.configuration.Element;
import org.wildfly.extension.rts.logging.RTSLogger;
/**
* The subsystem parser, which uses stax to read and write to and from xml
*
* @author <a href="mailto:gytis@redhat.com">Gytis Trikleris</a>
*
*/
final class RTSSubsystemParser implements XMLStreamConstants, XMLElementReader<List<ModelNode>>,
XMLElementWriter<SubsystemMarshallingContext> {
@Override
public void writeContent(XMLExtendedStreamWriter writer, SubsystemMarshallingContext context) throws XMLStreamException {
if (RTSLogger.ROOT_LOGGER.isTraceEnabled()) {
RTSLogger.ROOT_LOGGER.trace("RTSSubsystemParser.writeContent");
}
context.startSubsystemElement(RTSSubsystemExtension.NAMESPACE, false);
ModelNode node = context.getModelNode();
writer.writeStartElement(Element.SERVLET.getLocalName());
RTSSubsystemDefinition.SERVER.marshallAsAttribute(node, writer);
RTSSubsystemDefinition.HOST.marshallAsAttribute(node, writer);
RTSSubsystemDefinition.SOCKET_BINDING.marshallAsAttribute(node, writer);
writer.writeEndElement();
writer.writeEndElement();
}
@Override
public void readElement(XMLExtendedStreamReader reader, List<ModelNode> list) throws XMLStreamException {
if (RTSLogger.ROOT_LOGGER.isTraceEnabled()) {
RTSLogger.ROOT_LOGGER.trace("RTSSubsystemParser.readElement");
}
// no attributes
if (reader.getAttributeCount() > 0) {
throw ParseUtils.unexpectedAttribute(reader, 0);
}
final ModelNode subsystem = Util.getEmptyOperation(ADD, PathAddress.pathAddress(RTSSubsystemExtension.SUBSYSTEM_PATH).toModelNode());
list.add(subsystem);
// elements
final EnumSet<Element> encountered = EnumSet.noneOf(Element.class);
while (reader.hasNext() && reader.nextTag() != END_ELEMENT) {
final Element element = Element.forName(reader.getLocalName());
if (!encountered.add(element)) {
throw ParseUtils.unexpectedElement(reader);
}
if (element.equals(Element.SERVLET)) {
parseServletElement(reader, subsystem);
} else {
throw ParseUtils.unexpectedElement(reader);
}
}
}
private void parseServletElement(XMLExtendedStreamReader reader, ModelNode subsystem) throws XMLStreamException {
final int count = reader.getAttributeCount();
for (int i = 0; i < count; i++) {
ParseUtils.requireNoNamespaceAttribute(reader, i);
final String value = reader.getAttributeValue(i);
final Attribute attribute = Attribute.forName(reader.getAttributeLocalName(i));
switch (attribute) {
case SERVER:
RTSSubsystemDefinition.SERVER.parseAndSetParameter(value, subsystem, reader);
break;
case HOST:
RTSSubsystemDefinition.HOST.parseAndSetParameter(value, subsystem, reader);
break;
case SOCKET_BINDING:
RTSSubsystemDefinition.SOCKET_BINDING.parseAndSetParameter(value, subsystem, reader);
break;
default:
throw ParseUtils.unexpectedAttribute(reader, i);
}
}
// Handle elements
ParseUtils.requireNoContent(reader);
}
}