1 files changed, 153 insertions, 0 deletions
diff --git a/collaboration/GSoC-2011-Guilherme/modules/implementation-scala/src/main/java/org/apache/tuscany/sca/implementation/scala/xml/ScalaImplementationProcessor.java b/collaboration/GSoC-2011-Guilherme/modules/implementation-scala/src/main/java/org/apache/tuscany/sca/implementation/scala/xml/ScalaImplementationProcessor.java
new file mode 100644
index 0000000000..7ed1e92a86
--- /dev/null
+++ b/collaboration/GSoC-2011-Guilherme/modules/implementation-scala/src/main/java/org/apache/tuscany/sca/implementation/scala/xml/ScalaImplementationProcessor.java
@@ -0,0 +1,153 @@
+/*
+ * 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.scala.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.contribution.Artifact;
+import org.apache.tuscany.sca.contribution.ContributionFactory;
+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.scala.ScalaImplementation;
+import org.apache.tuscany.sca.implementation.scala.ScalaImplementationFactory;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.Problem;
+import org.apache.tuscany.sca.monitor.Problem.Severity;
+
+public class ScalaImplementationProcessor implements StAXArtifactProcessor<ScalaImplementation> {
+    private static final QName IMPLEMENTATION_SCALA = ScalaImplementation.TYPE;
+
+    private AssemblyFactory assemblyFactory;
+    private ContributionFactory contributionFactory;
+    private ScalaImplementationFactory scalaImplementationFactory;
+
+    public ScalaImplementationProcessor(ExtensionPointRegistry registry) {
+        FactoryExtensionPoint modelFactories = registry.getExtensionPoint(FactoryExtensionPoint.class);
+        assemblyFactory = modelFactories.getFactory(AssemblyFactory.class);
+        contributionFactory = modelFactories.getFactory(ContributionFactory.class);
+        scalaImplementationFactory = modelFactories.getFactory(ScalaImplementationFactory.class);
+    }
+
+    public QName getArtifactType() {
+        return IMPLEMENTATION_SCALA;
+    }
+
+    public Class<ScalaImplementation> getModelType() {
+        return ScalaImplementation.class;
+    }
+
+    public ScalaImplementation read(XMLStreamReader reader, ProcessorContext context) throws ContributionReadException, XMLStreamException {
+
+        // Read an <implementation.scala> element
+
+        // Create and initialize the scala implementation model
+        ScalaImplementation implementation = scalaImplementationFactory.createScalaImplementation();
+        implementation.setUnresolved(true);
+
+        // Read the scala attribute
+        String scala = reader.getAttributeValue(null, "scala");
+        if (scala != null) {
+            implementation.setScala(scala);
+        }
+
+        // Skip to end element
+        while (reader.hasNext()) {
+            if (reader.next() == END_ELEMENT && IMPLEMENTATION_SCALA.equals(reader.getName())) {
+                break;
+            }
+        }
+
+        return implementation;
+    }
+
+    public void resolve(ScalaImplementation implementation, ModelResolver resolver, ProcessorContext context) throws ContributionResolveException {
+
+        // Resolve the scala location
+        if (implementation.getScala() != null) {
+            Artifact artifact = contributionFactory.createArtifact();
+            artifact.setURI(implementation.getScala());
+            Artifact resolved = resolver.resolveModel(Artifact.class, artifact, context);
+            if (resolved.getLocation() != null) {
+                implementation.setLocation(resolved.getLocation());
+            } else {
+                error(context.getMonitor(), "CouldNotResolveScala", resolver, implementation.getScala());
+            }
+
+            // Resolve the componentType and add the declared properties, references
+            // and services to the implementation
+            String componentTypeURI = implementation.getScala();
+            componentTypeURI = componentTypeURI.substring(0, componentTypeURI.lastIndexOf('.'));
+            componentTypeURI += ".componentType";
+            ComponentType componentType = assemblyFactory.createComponentType();
+            componentType.setUnresolved(true);
+            componentType.setURI(componentTypeURI);
+            componentType = resolver.resolveModel(ComponentType.class, componentType, context);
+            if (!componentType.isUnresolved()) {
+                implementation.getProperties().addAll(componentType.getProperties());
+                implementation.getReferences().addAll(componentType.getReferences());
+                implementation.getServices().addAll(componentType.getServices());
+            }
+        }
+
+        implementation.setUnresolved(false);
+    }
+
+    public void write(ScalaImplementation implementation, XMLStreamWriter writer, ProcessorContext context) throws ContributionWriteException, XMLStreamException {
+
+        // Write <implementation.scala>
+        writer.setPrefix("scala", IMPLEMENTATION_SCALA.getNamespaceURI());
+        writer.writeStartElement(IMPLEMENTATION_SCALA.getNamespaceURI(), IMPLEMENTATION_SCALA.getLocalPart());
+        writer.writeNamespace("scala", IMPLEMENTATION_SCALA.getNamespaceURI());
+
+        if (implementation.getScala() != null) {
+            writer.writeAttribute("scala", implementation.getScala());
+        }
+
+        writer.writeEndElement();
+    }
+
+    /**
+     * Report a error.
+     * 
+     * @param problems
+     * @param message
+     * @param model
+     */
+    private void error(Monitor monitor, String message, Object model, Object... messageParameters) {
+        if (monitor != null) {
+            Problem problem = monitor.createProblem(this.getClass().getName(), "impl-scala-validation-messages", Severity.ERROR, model, message, messageParameters);
+            monitor.problem(problem);
+        }
+    }
+
+
+}