1 files changed, 172 insertions, 0 deletions
diff --git a/sca-java-1.x/branches/sca-java-1.6.2/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/WidgetImplementationProcessor.java b/sca-java-1.x/branches/sca-java-1.6.2/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/WidgetImplementationProcessor.java
new file mode 100644
index 0000000000..23b188fc96
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+++ b/sca-java-1.x/branches/sca-java-1.6.2/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/WidgetImplementationProcessor.java
@@ -0,0 +1,172 @@
+/*
+ * 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.widget;
+
+import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
+
+import java.io.IOException;
+import java.net.URL;
+
+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.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.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.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.Problem;
+import org.apache.tuscany.sca.monitor.Problem.Severity;
+
+/**
+ *
+ * Implements a StAX artifact processor for Widget implementations.
+ *
+ * @version $Rev$ $Date$
+ */
+public class WidgetImplementationProcessor extends BaseStAXArtifactProcessor implements StAXArtifactProcessor<WidgetImplementation> {
+    private static final QName IMPLEMENTATION_WIDGET = new QName(Constants.SCA10_TUSCANY_NS, "implementation.widget");
+
+    private AssemblyFactory assemblyFactory;
+    private ContributionFactory contributionFactory;
+    private WidgetImplementationFactory implementationFactory;
+    private Monitor monitor;
+
+    public WidgetImplementationProcessor(ModelFactoryExtensionPoint modelFactories, Monitor monitor) {
+    	assemblyFactory = modelFactories.getFactory(AssemblyFactory.class);
+        contributionFactory = modelFactories.getFactory(ContributionFactory.class);
+        implementationFactory = modelFactories.getFactory(WidgetImplementationFactory.class);
+        this.monitor = monitor;
+    }
+
+    /**
+     * Report a exception.
+     *
+     * @param problems
+     * @param message
+     * @param model
+     */
+    private void error(String message, Object model, Exception ex) {
+    	 if (monitor != null) {
+	        Problem problem = monitor.createProblem(this.getClass().getName(), "impl-widget-validation-messages", Severity.ERROR, model, message, ex);
+	        monitor.problem(problem);
+    	 }
+    }
+
+    /**
+     * Report a error.
+     *
+     * @param problems
+     * @param message
+     * @param model
+     */
+    private void error(String message, Object model, Object... messageParameters) {
+        if (monitor != null) {
+            Problem problem = monitor.createProblem(this.getClass().getName(), "impl-widget-validation-messages", Severity.ERROR, model, message, (Object[])messageParameters);
+            monitor.problem(problem);
+        }
+    }
+
+    public QName getArtifactType() {
+        // Returns the QName of the XML element processed by this processor
+        return IMPLEMENTATION_WIDGET;
+    }
+
+    public Class<WidgetImplementation> getModelType() {
+        // Returns the type of model processed by this processor
+        return WidgetImplementation.class;
+    }
+
+    public WidgetImplementation read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException {
+
+        // Read an <implementation.widget> element
+
+        // Create and initialize the resource implementation model
+        WidgetImplementation implementation = null;
+
+        // Read the location attribute specifying the location of the resources
+        String location = getURIString(reader, "location");
+        if (location != null) {
+            implementation = implementationFactory.createWidgetImplementation();
+            implementation.setLocation(location);
+            implementation.setUnresolved(true);
+        } else {
+            error("LocationAttributeMissing", reader);
+            //throw new ContributionReadException(MSG_LOCATION_MISSING);
+        }
+
+        // Skip to end element
+        while (reader.hasNext()) {
+            if (reader.next() == END_ELEMENT && IMPLEMENTATION_WIDGET.equals(reader.getName())) {
+                break;
+            }
+        }
+
+        return implementation;
+    }
+
+    public void resolve(WidgetImplementation implementation, ModelResolver resolver) throws ContributionResolveException {
+
+    	if (implementation != null) {
+    		// Resolve the resource directory location
+            Artifact artifact = contributionFactory.createArtifact();
+            artifact.setURI(implementation.getLocation());
+            Artifact resolved = resolver.resolveModel(Artifact.class, artifact);
+            if (resolved.getLocation() != null) {
+                try {
+                    implementation.setLocationURL(new URL(resolved.getLocation()));
+
+                    //introspect implementation
+                    WidgetImplementationIntrospector widgetIntrospector =
+                    	new WidgetImplementationIntrospector(assemblyFactory, implementation);
+                    widgetIntrospector.introspectImplementation();
+
+                    implementation.setUnresolved(false);
+                } catch (IOException e) {
+                	ContributionResolveException ce = new ContributionResolveException(e);
+                	error("ContributionResolveException", resolver, ce);
+                    //throw ce;
+                }
+            } else {
+                error("CouldNotResolveLocation", resolver, implementation.getLocation());
+                //throw new ContributionResolveException("Could not resolve implementation.widget location: " + implementation.getLocation());
+            }
+    	}
+    }
+
+    public void write(WidgetImplementation implementation, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException {
+        // Write <implementation.widget>        
+        writeStart(writer, IMPLEMENTATION_WIDGET.getNamespaceURI(), IMPLEMENTATION_WIDGET.getLocalPart());
+
+        if (implementation.getLocation() != null) {
+            writer.writeAttribute("location", implementation.getLocation());
+        }
+
+        writeEnd(writer);
+    }
+}