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diff --git a/sca-java-1.x/tags/1.6.1-TUSCANY-3909/assembly-xml/src/test/java/org/apache/tuscany/sca/assembly/xml/ReadDocumentTestCase.java b/sca-java-1.x/tags/1.6.1-TUSCANY-3909/assembly-xml/src/test/java/org/apache/tuscany/sca/assembly/xml/ReadDocumentTestCase.java
new file mode 100644
index 0000000000..b3760789c8
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+++ b/sca-java-1.x/tags/1.6.1-TUSCANY-3909/assembly-xml/src/test/java/org/apache/tuscany/sca/assembly/xml/ReadDocumentTestCase.java
@@ -0,0 +1,207 @@
+/*
+ * 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.assembly.xml;
+
+import java.net.URI;
+import java.net.URL;
+
+import javax.xml.XMLConstants;
+import javax.xml.parsers.SAXParserFactory;
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.validation.Schema;
+import javax.xml.validation.SchemaFactory;
+import javax.xml.validation.ValidatorHandler;
+
+import junit.framework.TestCase;
+
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.ConstrainingType;
+import org.apache.tuscany.sca.contribution.processor.DefaultValidatingXMLInputFactory;
+import org.apache.tuscany.sca.contribution.processor.DefaultValidationSchemaExtensionPoint;
+import org.apache.tuscany.sca.contribution.processor.ExtensibleStAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.ExtensibleURLArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessorExtensionPoint;
+import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessorExtensionPoint;
+import org.apache.tuscany.sca.contribution.processor.ValidationSchemaExtensionPoint;
+import org.apache.tuscany.sca.contribution.resolver.DefaultModelResolver;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.core.DefaultExtensionPointRegistry;
+import org.xml.sax.InputSource;
+import org.xml.sax.XMLReader;
+
+/**
+ * Test reading SCA XML assembly documents.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class ReadDocumentTestCase extends TestCase {
+
+    private URLArtifactProcessor<Object> documentProcessor;
+    private ModelResolver resolver;
+    private XMLInputFactory inputFactory;
+    private StAXArtifactProcessor<Object> staxProcessor; 
+
+    @Override
+    public void setUp() throws Exception {
+        DefaultExtensionPointRegistry extensionPoints = new DefaultExtensionPointRegistry();
+        URLArtifactProcessorExtensionPoint documentProcessors = extensionPoints.getExtensionPoint(URLArtifactProcessorExtensionPoint.class);
+        documentProcessor = new ExtensibleURLArtifactProcessor(documentProcessors, null); 
+        
+        StAXArtifactProcessorExtensionPoint staxProcessors = extensionPoints.getExtensionPoint(StAXArtifactProcessorExtensionPoint.class);
+        inputFactory = XMLInputFactory.newInstance();
+        staxProcessor = new ExtensibleStAXArtifactProcessor(staxProcessors, inputFactory, null, null);
+        
+        resolver = new DefaultModelResolver();
+    }
+
+    public void testValidateAssembly() throws Exception {
+        
+        SchemaFactory schemaFactory;
+        try {
+            schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
+        } catch (Error e) {
+            // Some old JDKs don't support XMLSchema validation
+            return;
+        } catch (Exception e) {
+            // Some old JDKs don't support XMLSchema validation
+            return;
+        }
+        Schema schema = schemaFactory.newSchema(getClass().getClassLoader().getResource("tuscany-sca.xsd"));
+        ValidatorHandler handler = schema.newValidatorHandler();
+        
+        SAXParserFactory parserFactory = SAXParserFactory.newInstance();
+        URL url = getClass().getResource("Calculator.composite");
+        XMLReader reader = parserFactory.newSAXParser().getXMLReader();
+        reader.setFeature("http://xml.org/sax/features/namespaces", true);
+        reader.setContentHandler(handler);
+        reader.parse(new InputSource(url.openStream()));
+           
+    }
+
+    public void testValidateImplementation() throws Exception {
+        
+        SchemaFactory schemaFactory;
+        try {
+            schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
+        } catch (Error e) {
+            // Some old JDKs don't support XMLSchema validation
+            return;
+        } catch (Exception e) {
+            // Some old JDKs don't support XMLSchema validation
+            return;
+        }
+        Schema schema = schemaFactory.newSchema(getClass().getClassLoader().getResource("tuscany-sca.xsd"));
+        ValidatorHandler handler = schema.newValidatorHandler();
+        
+        SAXParserFactory parserFactory = SAXParserFactory.newInstance();
+        URL url = getClass().getResource("JavaScriptReference.composite");
+        XMLReader reader = parserFactory.newSAXParser().getXMLReader();
+        reader.setFeature("http://xml.org/sax/features/namespaces", true);
+        reader.setContentHandler(handler);
+        reader.parse(new InputSource(url.openStream()));
+    }
+        
+    public void testReadImplementation() throws Exception { 
+        
+        ValidationSchemaExtensionPoint schemas = new DefaultValidationSchemaExtensionPoint();
+        schemas.addSchema(getClass().getClassLoader().getResource("tuscany-sca.xsd").toString());
+        XMLInputFactory validatingInputFactory = new DefaultValidatingXMLInputFactory(inputFactory, schemas, null);
+        CompositeDocumentProcessor compositeDocumentProcessor = new CompositeDocumentProcessor(staxProcessor, validatingInputFactory, null, null);
+        
+        URL url = getClass().getResource("JavaScriptReference.composite");
+        URI uri = URI.create("JavaScriptReference.composite");
+        Composite composite = (Composite)compositeDocumentProcessor.read(null, uri, url);
+        assertNotNull(composite);
+    }
+        
+    public void testValidateBinding() throws Exception {
+        
+        SchemaFactory schemaFactory;
+        try {
+            schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
+        } catch (Error e) {
+            // Some old JDKs don't support XMLSchema validation
+            return;
+        } catch (Exception e) {
+            // Some old JDKs don't support XMLSchema validation
+            return;
+        }
+        Schema schema = schemaFactory.newSchema(getClass().getClassLoader().getResource("tuscany-sca.xsd"));
+        ValidatorHandler handler = schema.newValidatorHandler();
+        
+        SAXParserFactory parserFactory = SAXParserFactory.newInstance();
+        URL url = getClass().getResource("RMIBindingTest.composite");
+        XMLReader reader = parserFactory.newSAXParser().getXMLReader();
+        reader.setFeature("http://xml.org/sax/features/namespaces", true);
+        reader.setContentHandler(handler);
+        reader.parse(new InputSource(url.openStream()));
+    }
+        
+    public void testReadBinding() throws Exception {
+        
+        ValidationSchemaExtensionPoint schemas = new DefaultValidationSchemaExtensionPoint();
+        schemas.addSchema(getClass().getClassLoader().getResource("tuscany-sca.xsd").toString());
+        XMLInputFactory validatingInputFactory = new DefaultValidatingXMLInputFactory(inputFactory, schemas, null);
+        CompositeDocumentProcessor compositeDocumentProcessor = new CompositeDocumentProcessor(staxProcessor, validatingInputFactory, null, null);
+        
+        URL url = getClass().getResource("RMIBindingTest.composite");
+        URI uri = URI.create("RMIBindingTest.composite");
+        Composite composite = (Composite)compositeDocumentProcessor.read(null, uri, url);
+        assertNotNull(composite);
+    }
+        
+    public void testResolveConstrainingType() throws Exception {
+        
+        URL url = getClass().getResource("CalculatorComponent.constrainingType");
+        URI uri = URI.create("CalculatorComponent.constrainingType");
+        ConstrainingType constrainingType = (ConstrainingType)documentProcessor.read(null, uri, url);
+        assertNotNull(constrainingType);
+        resolver.addModel(constrainingType);
+
+        url = getClass().getResource("TestAllCalculator.composite");
+        uri = URI.create("TestAllCalculator.constrainingType");
+        Composite composite = (Composite)documentProcessor.read(null, uri, url);
+        assertNotNull(composite);
+        
+        documentProcessor.resolve(composite, resolver);
+        
+       assertEquals(composite.getConstrainingType(), constrainingType);
+        assertEquals(composite.getComponents().get(0).getConstrainingType(), constrainingType);
+    }
+
+    public void testResolveComposite() throws Exception {
+        URL url = getClass().getResource("Calculator.composite");
+        URI uri = URI.create("Calculator.composite");
+        Composite nestedComposite = (Composite)documentProcessor.read(null, uri, url);
+        assertNotNull(nestedComposite);
+        resolver.addModel(nestedComposite);
+
+        url = getClass().getResource("TestAllCalculator.composite");
+        uri = URI.create("TestAllCalculator.composite");
+        Composite composite = (Composite)documentProcessor.read(null, uri, url);
+        
+        documentProcessor.resolve(composite, resolver);
+        
+        assertEquals(composite.getComponents().get(2).getImplementation(), nestedComposite);
+    }
+
+}