1 files changed, 162 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-jaxrs/src/main/java/org/apache/tuscany/sca/implementation/jaxrs/xml/JAXRSImplementationProcessor.java b/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-jaxrs/src/main/java/org/apache/tuscany/sca/implementation/jaxrs/xml/JAXRSImplementationProcessor.java
new file mode 100644
index 0000000000..da25b6edd5
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+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-jaxrs/src/main/java/org/apache/tuscany/sca/implementation/jaxrs/xml/JAXRSImplementationProcessor.java
@@ -0,0 +1,162 @@
+/*
+ * 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.jaxrs.xml;
+
+import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
+
+import javax.ws.rs.Path;
+import javax.ws.rs.core.Application;
+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.Service;
+import org.apache.tuscany.sca.binding.rest.RESTBinding;
+import org.apache.tuscany.sca.binding.rest.RESTBindingFactory;
+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.ClassReference;
+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.jaxrs.JAXRSImplementation;
+import org.apache.tuscany.sca.implementation.jaxrs.JAXRSImplementationFactory;
+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.oasisopen.sca.ServiceRuntimeException;
+
+/**
+ * Implements a StAX artifact processor for Web implementations.
+ */
+public class JAXRSImplementationProcessor extends BaseStAXArtifactProcessor implements
+    StAXArtifactProcessor<JAXRSImplementation> {
+    private static final QName IMPLEMENTATION_JAXRS = JAXRSImplementation.TYPE;
+
+    private AssemblyFactory assemblyFactory;
+    private JAXRSImplementationFactory implementationFactory;
+    private RESTBindingFactory restBindingFactory;
+    private JavaInterfaceFactory javaInterfaceFactory;
+
+    public JAXRSImplementationProcessor(ExtensionPointRegistry extensionPoints) {
+        FactoryExtensionPoint modelFactories = extensionPoints.getExtensionPoint(FactoryExtensionPoint.class);
+        this.assemblyFactory = modelFactories.getFactory(AssemblyFactory.class);
+        this.implementationFactory = modelFactories.getFactory(JAXRSImplementationFactory.class);
+        this.restBindingFactory = modelFactories.getFactory(RESTBindingFactory.class);
+        this.javaInterfaceFactory = modelFactories.getFactory(JavaInterfaceFactory.class);
+    }
+
+    public QName getArtifactType() {
+        // Returns the QName of the XML element processed by this processor
+        return IMPLEMENTATION_JAXRS;
+    }
+
+    public Class<JAXRSImplementation> getModelType() {
+        // Returns the type of model processed by this processor
+        return JAXRSImplementation.class;
+    }
+
+    public JAXRSImplementation read(XMLStreamReader reader, ProcessorContext context) throws ContributionReadException,
+        XMLStreamException {
+
+        // Read an <implementation.web> element
+        JAXRSImplementation implementation = implementationFactory.createJAXRSImplementation();
+        implementation.setUnresolved(true);
+
+        String application = reader.getAttributeValue(null, "application");
+        if (application != null) {
+            implementation.setApplication(application);
+        }
+
+        // Skip to end element
+        while (reader.hasNext()) {
+            if (reader.next() == END_ELEMENT && IMPLEMENTATION_JAXRS.equals(reader.getName())) {
+                break;
+            }
+        }
+
+        return implementation;
+    }
+
+    public void resolve(JAXRSImplementation implementation, ModelResolver resolver, ProcessorContext context)
+        throws ContributionResolveException {
+
+        ClassReference classReference = new ClassReference(implementation.getApplication());
+        classReference = resolver.resolveModel(ClassReference.class, classReference, context);
+        implementation.setApplicationClass(classReference.getJavaClass());
+        implementation.setUnresolved(false);
+        
+        Application application;
+        try {
+            application = (Application) implementation.getApplicationClass().newInstance();
+        } catch (Exception e) {
+            throw new ContributionResolveException(e);
+        } 
+        
+        for(Class<?> rootResourceClass: application.getClasses()) {
+            addService(implementation, rootResourceClass);
+        }
+        for(Object rootResource: application.getSingletons()) {
+            addService(implementation, rootResource.getClass());
+        }
+        
+    }
+
+    private void addService(JAXRSImplementation implementation, Class<?> rootResourceClass) {
+        Service service = assemblyFactory.createService();
+        JavaInterfaceContract contract = javaInterfaceFactory.createJavaInterfaceContract();
+        JavaInterface javaInterface;
+        try {
+            javaInterface = javaInterfaceFactory.createJavaInterface(rootResourceClass);
+        } catch (InvalidInterfaceException e) {
+            throw new ServiceRuntimeException(e);
+        }
+        contract.setInterface(javaInterface);
+        service.setInterfaceContract(contract);
+        RESTBinding binding = restBindingFactory.createRESTBinding();
+        // FIXME: The @ApplicationPath is available for JAX-RS 1.1
+        // binding.setURI("/");
+        Path path = rootResourceClass.getAnnotation(Path.class);
+        if (path != null) {
+            binding.setURI(path.value());
+        }
+        service.getBindings().add(binding);
+        service.setName(rootResourceClass.getSimpleName());
+        implementation.getServices().add(service);
+    }
+
+    public void write(JAXRSImplementation implementation, XMLStreamWriter writer, ProcessorContext context)
+        throws ContributionWriteException, XMLStreamException {
+
+        // Write <implementation.jaxrs>
+        writeStart(writer,
+                   IMPLEMENTATION_JAXRS.getNamespaceURI(),
+                   IMPLEMENTATION_JAXRS.getLocalPart(),
+                   new XAttr("application", implementation.getApplication()));
+
+        writeEnd(writer);
+    }
+}