1 files changed, 166 insertions, 0 deletions
diff --git a/branches/sca-equinox/modules/implementation-script/src/main/java/org/apache/tuscany/sca/implementation/script/ScriptImplementationProcessor.java b/branches/sca-equinox/modules/implementation-script/src/main/java/org/apache/tuscany/sca/implementation/script/ScriptImplementationProcessor.java
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+++ b/branches/sca-equinox/modules/implementation-script/src/main/java/org/apache/tuscany/sca/implementation/script/ScriptImplementationProcessor.java
@@ -0,0 +1,166 @@
+/*
+ * 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.script;
+
+import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
+
+import java.io.IOException;
+
+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.Artifact;
+import org.apache.tuscany.sca.contribution.ContributionFactory;
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
+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.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.Problem;
+import org.apache.tuscany.sca.monitor.Problem.Severity;
+
+/**
+ * ScriptImplementationProcessor
+ *
+ * @version $Rev: $ $Date: $
+ */
+public class ScriptImplementationProcessor implements StAXArtifactProcessor<ScriptImplementation> {
+    private static final QName IMPLEMENTATION_SCRIPT = new QName(Constants.SCA10_TUSCANY_NS, "implementation.script");
+
+    private AssemblyFactory assemblyFactory;
+    private ContributionFactory contributionFactory;
+    private Monitor monitor;
+    
+    public ScriptImplementationProcessor(ModelFactoryExtensionPoint modelFactories, Monitor monitor) {
+        assemblyFactory = modelFactories.getFactory(AssemblyFactory.class);
+        contributionFactory = modelFactories.getFactory(ContributionFactory.class);
+        this.monitor = monitor;
+    }
+    
+    public QName getArtifactType() {
+        return IMPLEMENTATION_SCRIPT;
+    }
+    
+    public Class<ScriptImplementation> getModelType() {
+        return ScriptImplementation.class;
+    }
+    
+    public ScriptImplementation read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException {
+        
+        // Read an <implementation.script> element
+
+        // Create and initialize the script implementation model
+        ScriptImplementation implementation = new ScriptImplementation();
+        implementation.setUnresolved(true);
+
+        // Read the script attribute
+        String script = reader.getAttributeValue(null, "script");
+        if (script != null) {                
+            implementation.setScript(script);
+        }
+
+        // Read the language attribute
+        String language = reader.getAttributeValue(null, "language");
+        if (language != null) {                
+            implementation.setLanguage(language);
+        }
+
+        // Skip to end element
+        while (reader.hasNext()) {
+            if (reader.next() == END_ELEMENT && IMPLEMENTATION_SCRIPT.equals(reader.getName())) {
+                break;
+            }
+        }
+
+        return implementation;
+    }
+    
+    public void resolve(ScriptImplementation implementation, ModelResolver resolver) throws ContributionResolveException {
+        
+        // Resolve the script location
+        if (implementation.getScript() != null) {
+            Artifact artifact = contributionFactory.createArtifact();
+            artifact.setURI(implementation.getScript());
+            Artifact resolved = resolver.resolveModel(Artifact.class, artifact);
+            if (resolved.getLocation() != null) {
+                implementation.setLocation(resolved.getLocation());
+            } else {
+                error("CouldNotResolveScript", resolver, implementation.getScript());
+            }
+            
+            // Resolve the componentType and add the declared properties, references
+            // and services to the implementation
+            String componentTypeURI = implementation.getScript();
+            componentTypeURI = componentTypeURI.substring(0, componentTypeURI.lastIndexOf('.'));
+            componentTypeURI += ".componentType";
+            ComponentType componentType = assemblyFactory.createComponentType();
+            componentType.setUnresolved(true);
+            componentType.setURI(componentTypeURI);
+            componentType = resolver.resolveModel(ComponentType.class, componentType);
+            if (!componentType.isUnresolved()) {
+                implementation.getProperties().addAll(componentType.getProperties());
+                implementation.getReferences().addAll(componentType.getReferences());
+                implementation.getServices().addAll(componentType.getServices());
+            }
+        }
+        
+        implementation.setUnresolved(false);
+    }
+    
+    public void write(ScriptImplementation implementation, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException {
+        
+        // Write <implementation.script>
+        writer.setPrefix("script", IMPLEMENTATION_SCRIPT.getNamespaceURI());
+        writer.writeStartElement(IMPLEMENTATION_SCRIPT.getNamespaceURI(), IMPLEMENTATION_SCRIPT.getLocalPart());
+        writer.writeNamespace("script", IMPLEMENTATION_SCRIPT.getNamespaceURI());
+        
+        if (implementation.getScript() != null) {
+            writer.writeAttribute("script", implementation.getScript());
+        }
+        if (implementation.getLanguage() != null) {
+            writer.writeAttribute("language", implementation.getLanguage());
+        }
+        
+        writer.writeEndElement();
+    }
+
+    /**
+     * 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-widget-validation-messages", Severity.ERROR, model, message, (Object[])messageParameters);
+            monitor.problem(problem);
+        }
+    }    
+
+}