/*
* 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.picketlink.common.parser;
import org.jboss.as.controller.ResourceDefinition;
import org.jboss.as.controller.SimpleAttributeDefinition;
import org.jboss.dmr.ModelNode;
import org.jboss.staxmapper.XMLExtendedStreamWriter;
import org.wildfly.extension.picketlink.common.model.ModelElement;
import org.wildfly.extension.picketlink.common.model.XMLElement;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamWriter;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import static org.wildfly.extension.picketlink.common.model.AbstractResourceDefinition.getAttributeDefinition;
import static org.wildfly.extension.picketlink.common.model.AbstractResourceDefinition.getChildResourceDefinitions;
/**
* <p> A generic XML Writer for all {@link ModelElement} definitions. </p>
*
* @author <a href="mailto:psilva@redhat.com">Pedro Silva</a>
* @since Mar 9, 2012
*/
public class ModelXMLElementWriter {
private final Map<String, ModelXMLElementWriter> register;
private final ModelElement modelElement;
private XMLElement parentElement;
private String nameAttribute;
public ModelXMLElementWriter(ModelElement element, Map<String, ModelXMLElementWriter> register) {
this.modelElement = element;
this.register = Collections.unmodifiableMap(register);
}
public ModelXMLElementWriter(ModelElement element, XMLElement parentElement, Map<String, ModelXMLElementWriter> register) {
this(element, register);
this.parentElement = parentElement;
}
public ModelXMLElementWriter(ModelElement element, String nameAttribute, Map<String, ModelXMLElementWriter> register) {
this(element, register);
this.nameAttribute = nameAttribute;
}
public ModelXMLElementWriter(ModelElement element, String nameAttribute, XMLElement parentElement, Map<String, ModelXMLElementWriter> register) {
this(element, nameAttribute, register);
this.parentElement = parentElement;
}
public void write(XMLExtendedStreamWriter writer, ModelNode modelNode) throws XMLStreamException {
String nodeName = modelNode.asProperty().getName();
if (nodeName.equals(this.modelElement.getName())) {
List<ModelNode> modelNodes = modelNode.asProperty().getValue().asList();
boolean writeParrent = this.parentElement != null && !modelNodes.isEmpty();
if (writeParrent) {
writer.writeStartElement(this.parentElement.getName());
}
for (ModelNode valueNode : modelNodes) {
writer.writeStartElement(this.modelElement.getName());
if (this.nameAttribute != null) {
writer.writeAttribute(this.nameAttribute, valueNode.keys().iterator().next());
}
ModelNode value = valueNode.asProperty().getValue();
if (value.isDefined()) {
writeAttributes(writer, value);
for (ModelNode propertyIdentity : value.asList()) {
List<ResourceDefinition> children = getChildResourceDefinitions().get(this.modelElement);
if (children != null) {
for (ResourceDefinition child : children) {
get(child.getPathElement().getKey()).write(writer, propertyIdentity);
}
}
}
}
writer.writeEndElement();
}
if (writeParrent) {
writer.writeEndElement();
}
}
}
private ModelXMLElementWriter get(String writerKey) {
return this.register.get(writerKey);
}
private void writeAttributes(XMLStreamWriter writer, ModelNode modelNode) throws XMLStreamException {
for (SimpleAttributeDefinition simpleAttributeDefinition : getAttributeDefinition(this.modelElement)) {
simpleAttributeDefinition.marshallAsAttribute(modelNode, writer);
}
}
}