Moving 1.x trunk

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@835700 13f79535-47bb-0310-9956-ffa450edef68

10 files changed, 665 insertions, 0 deletions

diff --git a/sca-java-1.x/trunk/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/Widget.java b/sca-java-1.x/trunk/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/Widget.java
new file mode 100644
index 0000000000..f47850a05c
--- /dev/null
+++ b/sca-java-1.x/trunk/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/Widget.java
@@ -0,0 +1,34 @@
+/*
+ * 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 java.io.InputStream;
+
+import org.apache.tuscany.sca.data.collection.Collection;
+
+/**
+ * The service interface of widget implementations. This is not an API for application
+ * developers. Application developers should use the data collection API to invoke
+ * widget components.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface Widget extends Collection<String, InputStream> {
+}
diff --git a/sca-java-1.x/trunk/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/WidgetImplementation.java b/sca-java-1.x/trunk/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/WidgetImplementation.java
new file mode 100644
index 0000000000..2a092884be
--- /dev/null
+++ b/sca-java-1.x/trunk/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/WidgetImplementation.java
@@ -0,0 +1,40 @@
+/*
+ * 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 java.net.URL;
+
+import org.apache.tuscany.sca.assembly.Implementation;
+
+
+/**
+ * The model representing a widget implementation in an SCA assembly model.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface WidgetImplementation extends Implementation {
+    
+    String getLocation();
+
+    void setLocation(String location);
+
+    URL getLocationURL();
+    
+    void setLocationURL(URL url);
+}
diff --git a/sca-java-1.x/trunk/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/WidgetImplementationFactory.java b/sca-java-1.x/trunk/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/WidgetImplementationFactory.java
new file mode 100644
index 0000000000..3a3754f67d
--- /dev/null
+++ b/sca-java-1.x/trunk/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/WidgetImplementationFactory.java
@@ -0,0 +1,31 @@
+/*
+ * 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;
+
+/**
+ * Factory for the widget implementation model.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface WidgetImplementationFactory {
+    
+    WidgetImplementation createWidgetImplementation();
+    
+}
\ No newline at end of file
diff --git a/sca-java-1.x/trunk/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/WidgetImplementationIntrospector.java b/sca-java-1.x/trunk/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/WidgetImplementationIntrospector.java
new file mode 100644
index 0000000000..abe00bac5b
--- /dev/null
+++ b/sca-java-1.x/trunk/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/WidgetImplementationIntrospector.java
@@ -0,0 +1,145 @@
+/*
+ * 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 java.net.URL;
+import java.net.URLConnection;
+import java.util.Scanner;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Property;
+import org.apache.tuscany.sca.assembly.Reference;
+
+/**
+ *
+ * @version $Rev$ $Date$
+ */
+class WidgetImplementationIntrospector {
+    private static final String WEB_REFERENCE_ANNOTATION = "//@Reference";
+    private static final String WEB_PROPERTY_ANNOTATION = "//@Property";
+    
+    private AssemblyFactory assemblyFactory;
+    private WidgetImplementation widgetImplementation;
+    
+    WidgetImplementationIntrospector(AssemblyFactory assemblyFactory, WidgetImplementation widgetImplementation) {
+        this.widgetImplementation = widgetImplementation;
+        this.assemblyFactory = assemblyFactory;
+    }
+    
+    
+    /**
+     * Introspect and populate a given widget implementation
+     */
+    public void introspectImplementation() {
+        URL htmlWidget = widgetImplementation.getLocationURL();
+        
+        try {
+            URLConnection connection = htmlWidget.openConnection();
+            connection.setUseCaches(false);
+            Scanner scanner = new Scanner(connection.getInputStream());
+            while(scanner.hasNextLine()) {
+                String line = scanner.nextLine();
+                if(line.contains(WEB_PROPERTY_ANNOTATION)) {
+                	//process the next line, as it has the property info
+                	if (scanner.hasNextLine()) {
+                		Property property = processPropertyScript(scanner.nextLine());
+                		if (property != null) {
+                			widgetImplementation.getProperties().add(property);
+                		}
+                	}
+                	
+                } else if(line.contains(WEB_REFERENCE_ANNOTATION)) {
+                    //process the next line, as it has the reference info
+                    if (scanner.hasNextLine()) {
+                        Reference reference = processReferenceScript(scanner.nextLine());
+                        if(reference != null){
+                        	widgetImplementation.getReferences().add(reference);
+                        }
+                        
+                    }
+                }
+            }
+            
+        } catch(Exception e) {
+            
+        }
+        
+    	
+    }
+    
+    
+    /**
+     * Process Property declaration in JavaScript code
+     * Supported ways:
+     *    //@Property
+     *    var locale = Property("locale");
+     *    
+     *    //@Property
+     *    locale = Property("locale");
+     *    
+     * @param scriptContent
+     * @return
+     */
+    private Property processPropertyScript(String scriptContent) {
+    	Property property = null;
+        String propertyName = null;
+        
+        String tokens[] = scriptContent.split("=");
+        tokens = tokens[0].split(" ");
+        propertyName = tokens[tokens.length -1];
+        
+        if(propertyName != null) {
+            property = assemblyFactory.createProperty();
+            property.setName(propertyName);     
+        }
+        
+        return property;
+    }
+    
+    /**
+     * Process Reference declaration in JavaScript code
+     * Supported ways :
+     *    //@Reference
+     *    var catalog = new Reference("catalog");
+     *    
+     *    //@Reference
+     *    catalog = new Reference("catalog");
+     *    
+     * @param scriptContent
+     * @return
+     */
+    private Reference processReferenceScript(String scriptContent) {
+        Reference reference = null;
+        String referenceName = null;
+        
+        String tokens[] = scriptContent.split("=");
+        
+        // find the string between the quotes
+        tokens = tokens[1].split("\"");
+        referenceName = tokens[1];
+        
+        if(referenceName != null) {
+            reference = assemblyFactory.createReference();
+            reference.setName(referenceName);            
+        }
+        
+        return reference;
+    }
+}
diff --git a/sca-java-1.x/trunk/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/WidgetImplementationProcessor.java b/sca-java-1.x/trunk/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/WidgetImplementationProcessor.java
new file mode 100644
index 0000000000..c0087e97fe
--- /dev/null
+++ b/sca-java-1.x/trunk/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 = reader.getAttributeValue(null, "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);
+    }
+}
diff --git a/sca-java-1.x/trunk/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/impl/WidgetImplementationFactoryImpl.java b/sca-java-1.x/trunk/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/impl/WidgetImplementationFactoryImpl.java
new file mode 100644
index 0000000000..c24c9e7eab
--- /dev/null
+++ b/sca-java-1.x/trunk/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/impl/WidgetImplementationFactoryImpl.java
@@ -0,0 +1,47 @@
+/*
+ * 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.impl;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.implementation.widget.WidgetImplementation;
+import org.apache.tuscany.sca.implementation.widget.WidgetImplementationFactory;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory;
+
+/**
+ * Factory for the widget implementation model.
+ *
+ * @version $Rev$ $Date$
+ */
+public class WidgetImplementationFactoryImpl implements WidgetImplementationFactory {
+    
+    private AssemblyFactory assemblyFactory;
+    private JavaInterfaceFactory javaFactory;
+    
+    public WidgetImplementationFactoryImpl(ModelFactoryExtensionPoint modelFactories) {
+        assemblyFactory = modelFactories.getFactory(AssemblyFactory.class);
+        javaFactory = modelFactories.getFactory(JavaInterfaceFactory.class);
+    }
+
+    public WidgetImplementation createWidgetImplementation() {
+        return new WidgetImplementationImpl(assemblyFactory, javaFactory);
+    }
+
+}
diff --git a/sca-java-1.x/trunk/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/impl/WidgetImplementationImpl.java b/sca-java-1.x/trunk/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/impl/WidgetImplementationImpl.java
new file mode 100644
index 0000000000..f50fd73b5c
--- /dev/null
+++ b/sca-java-1.x/trunk/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/impl/WidgetImplementationImpl.java
@@ -0,0 +1,135 @@
+/*
+ * 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.impl;
+
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.ConstrainingType;
+import org.apache.tuscany.sca.assembly.Property;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.implementation.widget.Widget;
+import org.apache.tuscany.sca.implementation.widget.WidgetImplementation;
+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;
+
+
+/**
+ * The model representing a widget implementation in an SCA assembly model.
+ *
+ * @version $Rev$ $Date$
+ */
+public class WidgetImplementationImpl implements WidgetImplementation {
+    private Service widgetService;
+    private List<Reference> references = new ArrayList<Reference>();
+    private List<Property> properties = new ArrayList<Property>();
+    
+    private String location;
+    private URL url;
+    private boolean unresolved;
+
+    /**
+     * Constructs a new resource implementation.
+     */
+    WidgetImplementationImpl(AssemblyFactory assemblyFactory,
+                         JavaInterfaceFactory javaFactory) {
+
+        // Resource implementation always provide a single service exposing
+        // the Resource interface, and have no references and properties
+        widgetService = assemblyFactory.createService();
+        widgetService.setName("Widget");
+        
+        // Create the Java interface contract for the Resource service
+        JavaInterface javaInterface;
+        try {
+            javaInterface = javaFactory.createJavaInterface(Widget.class);
+        } catch (InvalidInterfaceException e) {
+            throw new IllegalArgumentException(e);
+        }
+        JavaInterfaceContract interfaceContract = javaFactory.createJavaInterfaceContract();
+        interfaceContract.setInterface(javaInterface);
+        widgetService.setInterfaceContract(interfaceContract);
+    }
+
+    public String getLocation() {
+        return location;
+    }
+
+    public void setLocation(String location) {
+        this.location = location;
+    }
+
+    public URL getLocationURL() {
+        return url;
+    }
+    
+    public void setLocationURL(URL url) {
+        this.url = url;
+    }
+    
+    public ConstrainingType getConstrainingType() {
+        // The resource implementation does not support constrainingTypes
+        return null;
+    }
+
+    public List<Property> getProperties() {
+        return properties;
+    }
+
+    public List<Service> getServices() {
+        // The resource implementation does not support services
+        return Collections.singletonList(widgetService);
+    }
+    
+    public List<Reference> getReferences() {
+        return references;
+    }
+
+    public String getURI() {
+        return location;
+    }
+
+    public void setConstrainingType(ConstrainingType constrainingType) {
+        // The resource implementation does not support constrainingTypes
+    }
+
+    public void setURI(String uri) {
+        this.location = uri;
+    }
+
+
+    public boolean isUnresolved() {
+        return unresolved;
+    }
+
+    public void setUnresolved(boolean unresolved) {
+        this.unresolved = unresolved;
+    }    
+
+    @Override
+    public String toString() {
+        return "Widget : " + getLocation(); 
+    }
+}
diff --git a/sca-java-1.x/trunk/modules/implementation-widget/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor b/sca-java-1.x/trunk/modules/implementation-widget/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor
new file mode 100644
index 0000000000..6c167a6b31
--- /dev/null
+++ b/sca-java-1.x/trunk/modules/implementation-widget/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor
@@ -0,0 +1,19 @@
+# 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. 
+
+# Implementation class for the artifact processor extension
+org.apache.tuscany.sca.implementation.widget.WidgetImplementationProcessor;qname=http://tuscany.apache.org/xmlns/sca/1.0#implementation.widget,model=org.apache.tuscany.sca.implementation.widget.WidgetImplementation
diff --git a/sca-java-1.x/trunk/modules/implementation-widget/src/main/resources/META-INF/services/org.apache.tuscany.sca.implementation.widget.WidgetImplementationFactory b/sca-java-1.x/trunk/modules/implementation-widget/src/main/resources/META-INF/services/org.apache.tuscany.sca.implementation.widget.WidgetImplementationFactory
new file mode 100644
index 0000000000..633dda5675
--- /dev/null
+++ b/sca-java-1.x/trunk/modules/implementation-widget/src/main/resources/META-INF/services/org.apache.tuscany.sca.implementation.widget.WidgetImplementationFactory
@@ -0,0 +1,19 @@
+# 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. 
+
+# Implementation class for model factory
+org.apache.tuscany.sca.implementation.widget.impl.WidgetImplementationFactoryImpl
diff --git a/sca-java-1.x/trunk/modules/implementation-widget/src/main/resources/impl-widget-validation-messages.properties b/sca-java-1.x/trunk/modules/implementation-widget/src/main/resources/impl-widget-validation-messages.properties
new file mode 100644
index 0000000000..3778bd4c50
--- /dev/null
+++ b/sca-java-1.x/trunk/modules/implementation-widget/src/main/resources/impl-widget-validation-messages.properties
@@ -0,0 +1,23 @@
+#
+#
+#    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.
+#
+#
+ContributionResolveException = ContributionResolveException occured due to:
+LocationAttributeMissing = Reading implementation.widget - location attribute missing
+CouldNotResolveLocation = Could not resolve implementation.widget location: {0}