package org.jboss.as.subsystem.test.otherservices.subsystem;
import org.jboss.as.controller.ReloadRequiredRemoveStepHandler;
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.REMOVE;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.SUBSYSTEM;
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.OperationContext;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.controller.OperationStepHandler;
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.parsing.ExtensionParsingContext;
import org.jboss.as.controller.parsing.ParseUtils;
import org.jboss.as.controller.persistence.SubsystemMarshallingContext;
import org.jboss.as.controller.registry.ManagementResourceRegistration;
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;
/**
*
* @author <a href="kabir.khan@jboss.com">Kabir Khan</a>
*/
public class OtherServicesSubsystemExtension implements Extension {
/** The name space used for the {@code substystem} element */
public static final String NAMESPACE = "urn:mycompany:mysubsystem:1.0";
/** The name of our subsystem within the model. */
public static final String SUBSYSTEM_NAME = "mysubsystem";
/** The parser used for parsing our subsystem */
private final SubsystemParser parser = new SubsystemParser();
private volatile OperationStepHandler addHandler;
public OtherServicesSubsystemExtension() {
}
public void setAddHandler(OperationStepHandler addHandler) {
this.addHandler = addHandler;
}
@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, 1, 0);
final ManagementResourceRegistration registration = subsystem.registerSubsystemModel(OtherServicesSubsystemProviders.SUBSYSTEM);
//We always need to add an 'add' operation
registration.registerOperationHandler(ADD, addHandler, OtherServicesSubsystemProviders.SUBSYSTEM_ADD, false);
//We always need to add a 'describe' operation
registration.registerOperationHandler(DESCRIBE, SubsystemDescribeHandler.INSTANCE, SubsystemDescribeHandler.INSTANCE, false, OperationEntry.EntryType.PRIVATE);
//We always need to add an 'remove' operation
registration.registerOperationHandler(REMOVE, ReloadRequiredRemoveStepHandler.INSTANCE, OtherServicesSubsystemProviders.SUBSYSTEM_REMOVE, false);
subsystem.registerXMLElementWriter(parser);
}
private static ModelNode createAddSubsystemOperation() {
final ModelNode subsystem = new ModelNode();
subsystem.get(OP).set(ADD);
subsystem.get(OP_ADDR).add(SUBSYSTEM, SUBSYSTEM_NAME);
return subsystem;
}
/**
* The subsystem parser, which uses stax to read and write to and from xml
*/
private static class SubsystemParser implements XMLStreamConstants, XMLElementReader<List<ModelNode>>, XMLElementWriter<SubsystemMarshallingContext> {
/** {@inheritDoc} */
@Override
public void writeContent(XMLExtendedStreamWriter writer, SubsystemMarshallingContext context) throws XMLStreamException {
context.startSubsystemElement(OtherServicesSubsystemExtension.NAMESPACE, false);
writer.writeEndElement();
}
/** {@inheritDoc} */
@Override
public void readElement(XMLExtendedStreamReader reader, List<ModelNode> list) throws XMLStreamException {
// Require no content
ParseUtils.requireNoContent(reader);
list.add(createAddSubsystemOperation());
}
}
/**
* Recreate the steps to put the subsystem in the same state it was in.
* This is used in domain mode to query the profile being used, in order to
* get the steps needed to create the servers
*/
private static class SubsystemDescribeHandler implements OperationStepHandler, DescriptionProvider {
static final SubsystemDescribeHandler INSTANCE = new SubsystemDescribeHandler();
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
context.getResult().add(createAddSubsystemOperation());
context.completeStep();
}
@Override
public ModelNode getModelDescription(Locale locale) {
return CommonDescriptions.getSubsystemDescribeOperation(locale);
}
}
}