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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
package org.apache.tuscany.sca.implementation.ejb.xml;
import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import org.apache.tuscany.sca.assembly.AssemblyFactory;
import org.apache.tuscany.sca.assembly.ComponentType;
import org.apache.tuscany.sca.assembly.builder.impl.ProblemImpl;
import org.apache.tuscany.sca.assembly.xml.Constants;
import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
import org.apache.tuscany.sca.contribution.processor.BaseStAXArtifactProcessor;
import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
import org.apache.tuscany.sca.contribution.service.ContributionReadException;
import org.apache.tuscany.sca.contribution.service.ContributionResolveException;
import org.apache.tuscany.sca.contribution.service.ContributionWriteException;
import org.apache.tuscany.sca.implementation.ejb.EJBImplementation;
import org.apache.tuscany.sca.implementation.ejb.EJBImplementationFactory;
import org.apache.tuscany.sca.monitor.Monitor;
import org.apache.tuscany.sca.monitor.Problem;
import org.apache.tuscany.sca.monitor.Problem.Severity;
/**
* Implements a StAX artifact processor for EJB implementations.
*
* @version $Rev$ $Date$
*/
public class EJBImplementationProcessor extends BaseStAXArtifactProcessor implements StAXArtifactProcessor<EJBImplementation> {
private static final QName IMPLEMENTATION_EJB = new QName(Constants.SCA10_NS, "implementation.ejb");
private AssemblyFactory assemblyFactory;
private EJBImplementationFactory implementationFactory;
private Monitor monitor;
public EJBImplementationProcessor(ModelFactoryExtensionPoint modelFactories, Monitor monitor) {
this.assemblyFactory = modelFactories.getFactory(AssemblyFactory.class);
this.implementationFactory = modelFactories.getFactory(EJBImplementationFactory.class);
this.monitor = monitor;
}
/**
* Report a error.
*
* @param problems
* @param message
* @param model
*/
private void error(String message, Object model, Object... messageParameters) {
if (monitor != null) {
Problem problem = new ProblemImpl(this.getClass().getName(), "impl-ejb-validation-messages", Severity.ERROR, model, message, (Object[])messageParameters);
monitor.problem(problem);
}
}
public QName getArtifactType() {
// Returns the QName of the XML element processed by this processor
return IMPLEMENTATION_EJB;
}
public Class<EJBImplementation> getModelType() {
// Returns the type of model processed by this processor
return EJBImplementation.class;
}
public EJBImplementation read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException {
// Read an <implementation.ejb> element
EJBImplementation implementation = implementationFactory.createEJBImplementation();
implementation.setUnresolved(true);
// Read the ejb-link attribute
String ejbLink = getString(reader, "ejb-link");
if (ejbLink != null) {
implementation.setEJBLink(ejbLink);
// Set the URI of the component type
//implementation.setURI(ejbLink.replace('#', '/'));
int hashPosition = ejbLink.indexOf('#');
if (hashPosition >= 0) {
implementation.setURI(ejbLink.substring(hashPosition + 1));
} else {
implementation.setURI(ejbLink);
}
} else {
error("EJBLinkAttributeMissing", reader);
}
// Skip to end element
while (reader.hasNext()) {
if (reader.next() == END_ELEMENT && IMPLEMENTATION_EJB.equals(reader.getName())) {
break;
}
}
return implementation;
}
public void resolve(EJBImplementation implementation, ModelResolver resolver) throws ContributionResolveException {
// Resolve the component type
String uri = implementation.getURI();
if (uri != null) {
ComponentType componentType = assemblyFactory.createComponentType();
componentType.setURI(uri + ".componentType");
componentType = resolver.resolveModel(ComponentType.class, componentType);
if (!componentType.isUnresolved()) {
// Initialize the implementation's services, references and properties
implementation.getServices().addAll(componentType.getServices());
implementation.getReferences().addAll(componentType.getReferences());
implementation.getProperties().addAll(componentType.getProperties());
}
}
implementation.setUnresolved(false);
}
public void write(EJBImplementation implementation, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException {
// Write <implementation.ejb>
writeStart(writer, IMPLEMENTATION_EJB.getNamespaceURI(), IMPLEMENTATION_EJB.getLocalPart(),
new XAttr("ejb-link", implementation.getEJBLink()));
writeEnd(writer);
}
}
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