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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 java.net.URI;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
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.ComponentReference;
import org.apache.tuscany.sca.assembly.ComponentType;
import org.apache.tuscany.sca.assembly.Property;
import org.apache.tuscany.sca.assembly.xml.Constants;
import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
import org.apache.tuscany.sca.contribution.jee.EjbReferenceInfo;
import org.apache.tuscany.sca.contribution.jee.EnvEntryInfo;
import org.apache.tuscany.sca.contribution.jee.JspReferenceTagInfo;
import org.apache.tuscany.sca.contribution.jee.WebModuleInfo;
import org.apache.tuscany.sca.contribution.jee.JavaEEExtension;
import org.apache.tuscany.sca.contribution.jee.JavaEEOptionalExtension;
import org.apache.tuscany.sca.contribution.jee.impl.WebModuleInfoImpl;
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.java.DefaultJavaImplementationFactory;
import org.apache.tuscany.sca.implementation.java.IntrospectionException;
import org.apache.tuscany.sca.implementation.java.JavaImplementation;
import org.apache.tuscany.sca.implementation.java.JavaImplementationFactory;
import org.apache.tuscany.sca.implementation.java.impl.JavaElementImpl;
import org.apache.tuscany.sca.implementation.java.impl.JavaResourceImpl;
import org.apache.tuscany.sca.implementation.java.introspect.impl.ComponentNameProcessor;
import org.apache.tuscany.sca.implementation.java.introspect.impl.ContextProcessor;
import org.apache.tuscany.sca.implementation.web.WebImplementation;
import org.apache.tuscany.sca.implementation.web.WebImplementationFactory;
import org.apache.tuscany.sca.implementation.web.introspect.PropertyProcessor;
import org.apache.tuscany.sca.implementation.web.introspect.ReferenceProcessor;
import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException;
import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceContract;
import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory;
import org.apache.tuscany.sca.monitor.Monitor;
/**
* 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.SCA10_NS, "implementation.web");
private AssemblyFactory assemblyFactory;
private WebImplementationFactory implementationFactory;
private Monitor monitor;
private JavaEEExtension jeeExtension;
private JavaEEOptionalExtension jeeOptionalExtension;
private JavaImplementationFactory javaImplementationFactory;
private JavaInterfaceFactory javaInterfaceFactory;
public WebImplementationProcessor(ModelFactoryExtensionPoint modelFactories, Monitor monitor) {
this.assemblyFactory = modelFactories.getFactory(AssemblyFactory.class);
this.implementationFactory = modelFactories.getFactory(WebImplementationFactory.class);
this.jeeExtension = modelFactories.getFactory(JavaEEExtension.class);
this.jeeOptionalExtension = modelFactories.getFactory(JavaEEOptionalExtension.class);
this.monitor = monitor;
this.javaImplementationFactory = new DefaultJavaImplementationFactory();
this.javaInterfaceFactory = modelFactories.getFactory(JavaInterfaceFactory.class);
javaImplementationFactory.addClassVisitor(new ReferenceProcessor(assemblyFactory, javaInterfaceFactory));
javaImplementationFactory.addClassVisitor(new PropertyProcessor(assemblyFactory));
javaImplementationFactory.addClassVisitor(new ComponentNameProcessor(assemblyFactory));
javaImplementationFactory.addClassVisitor(new ContextProcessor(assemblyFactory));
}
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) 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
// TODO: This should point to the base uri of the WAR file
implementation.setURI(webURI);
}
// 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) throws ContributionResolveException {
// Resolve the component type
String uri = implementation.getURI();
if (uri != null) {
WebModuleInfo webModuleInfo = new WebModuleInfoImpl();
webModuleInfo.setUri(URI.create(uri));
webModuleInfo = resolver.resolveModel(WebModuleInfo.class, webModuleInfo);
if(jeeOptionalExtension != null) {
ComponentType ct = jeeOptionalExtension.createImplementationWebComponentType(webModuleInfo);
implementation.getReferences().addAll(ct.getReferences());
implementation.getProperties().addAll(ct.getProperties());
List<String> propertyNames = new ArrayList<String>();
for(Property prop : ct.getProperties()) {
propertyNames.add(prop.getName());
}
// Injection points from optional extension
for(Map.Entry<String, EjbReferenceInfo> entry : webModuleInfo.getEjbReferences().entrySet()) {
EjbReferenceInfo ejbRef = entry.getValue();
implementation.getOptExtensionReferenceInjectionPoints().put(ejbRef.injectionTarget, ejbRef.businessInterface);
}
for(Map.Entry<String, EnvEntryInfo> entry : webModuleInfo.getEnvEntries().entrySet()) {
EnvEntryInfo envEntry = entry.getValue();
if(propertyNames.contains(envEntry.name.replace("/", "_"))) {
implementation.getOptExtensionPropertyInjectionPoints().put(envEntry.name, envEntry.type);
}
}
}
// Introspection of classes
List<Class<?>> webArtifacts = new ArrayList<Class<?>>();
webArtifacts.addAll(webModuleInfo.getServletClasses());
webArtifacts.addAll(webModuleInfo.getFilterClasses());
webArtifacts.addAll(webModuleInfo.getListenerClasses());
webArtifacts.addAll(webModuleInfo.getJSFClasses());
JavaImplementation ji = javaImplementationFactory.createJavaImplementation();
for(Class<?> clazz : webArtifacts) {
try {
javaImplementationFactory.createJavaImplementation(ji, clazz);
} catch (IntrospectionException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
implementation.getReferences().addAll(ji.getReferences());
implementation.getProperties().addAll(ji.getProperties());
for(Map.Entry<String, JavaElementImpl> entry : ji.getReferenceMembers().entrySet()) {
implementation.getReferenceInjectionPoints().put(entry.getKey(), entry.getValue());
}
for(Map.Entry<String, JavaElementImpl> entry : ji.getPropertyMembers().entrySet()) {
implementation.getPropertyInjectionPoints().put(entry.getKey(), entry.getValue());
}
for(Map.Entry<String, JavaResourceImpl> entry : ji.getResources().entrySet()) {
implementation.getResourceInjectionPoints().put(entry.getKey(), entry.getValue());
}
// SCA References in JSP Tags
for(JspReferenceTagInfo jspRefTag : webModuleInfo.getJspReferenceTags()) {
ComponentReference ref = assemblyFactory.createComponentReference();
ref.setName(jspRefTag.name);
JavaInterfaceContract intfContract = javaInterfaceFactory.createJavaInterfaceContract();
try {
intfContract.setInterface(javaInterfaceFactory.createJavaInterface(jspRefTag.type));
} catch (InvalidInterfaceException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
ref.setInterfaceContract(intfContract);
implementation.getReferences().add(ref);
}
// Process componentType side file
ComponentType componentType = assemblyFactory.createComponentType();
componentType.setURI("WEB-INF/web.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(WebImplementation implementation, XMLStreamWriter writer) 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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