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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.web.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.xml.Constants;
import org.apache.tuscany.sca.contribution.processor.BaseStAXArtifactProcessor;
import org.apache.tuscany.sca.contribution.processor.ContributionReadException;
import org.apache.tuscany.sca.contribution.processor.ContributionResolveException;
import org.apache.tuscany.sca.contribution.processor.ContributionWriteException;
import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.core.FactoryExtensionPoint;
import org.apache.tuscany.sca.implementation.web.WebImplementation;
import org.apache.tuscany.sca.implementation.web.WebImplementationFactory;
import org.apache.tuscany.sca.implementation.web.impl.WebImplementationFactoryImpl;
/**
* Implements a StAX artifact processor for Web implementations.
*/
public class WebImplementationProcessor extends BaseStAXArtifactProcessor implements StAXArtifactProcessor<WebImplementation> {
private static final QName IMPLEMENTATION_WEB = new QName(Constants.SCA11_NS, "implementation.web");
private AssemblyFactory assemblyFactory;
private WebImplementationFactory implementationFactory;
public WebImplementationProcessor(ExtensionPointRegistry extensionPoints) {
FactoryExtensionPoint modelFactories = extensionPoints.getExtensionPoint(FactoryExtensionPoint.class);
this.assemblyFactory = modelFactories.getFactory(AssemblyFactory.class);
this.implementationFactory = new WebImplementationFactoryImpl();
}
public QName getArtifactType() {
// Returns the QName of the XML element processed by this processor
return IMPLEMENTATION_WEB;
}
public Class<WebImplementation> getModelType() {
// Returns the type of model processed by this processor
return WebImplementation.class;
}
public WebImplementation read(XMLStreamReader reader, ProcessorContext context) throws ContributionReadException, XMLStreamException {
// Read an <implementation.web> element
WebImplementation implementation = implementationFactory.createWebImplementation();
implementation.setUnresolved(true);
// Read the webapp uri attribute
String webURI = getString(reader, "web-uri");
if (webURI != null) {
implementation.setWebURI(webURI);
// Set the URI of the component type
implementation.setURI(webURI);
}
String jsClient = reader.getAttributeValue(Constants.SCA11_TUSCANY_NS, "jsClient");
if (jsClient != null) {
implementation.setJSClient(Boolean.parseBoolean(jsClient));
}
// Skip to end element
while (reader.hasNext()) {
if (reader.next() == END_ELEMENT && IMPLEMENTATION_WEB.equals(reader.getName())) {
break;
}
}
return implementation;
}
public void resolve(WebImplementation implementation, ModelResolver resolver, ProcessorContext context) throws ContributionResolveException {
// Resolve the component type
String uri = implementation.getURI();
if (uri != null) {
ComponentType componentType = assemblyFactory.createComponentType();
componentType.setURI("web.componentType");
componentType = resolver.resolveModel(ComponentType.class, componentType, context);
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(WebImplementation implementation, XMLStreamWriter writer, ProcessorContext context) throws ContributionWriteException, XMLStreamException {
// Write <implementation.web>
writeStart(writer, IMPLEMENTATION_WEB.getNamespaceURI(), IMPLEMENTATION_WEB.getLocalPart(),
new XAttr("web-uri", implementation.getWebURI()));
writeEnd(writer);
}
}
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