Copy 1.x trunk to branches for start of 1.6 release

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@892786 13f79535-47bb-0310-9956-ffa450edef68

10 files changed, 888 insertions, 0 deletions

diff --git a/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/main/java/org/apache/tuscany/sca/xsd/xml/XMLDocumentHelper.java b/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/main/java/org/apache/tuscany/sca/xsd/xml/XMLDocumentHelper.java
new file mode 100644
index 0000000000..a057bbe155
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/main/java/org/apache/tuscany/sca/xsd/xml/XMLDocumentHelper.java
@@ -0,0 +1,184 @@
+/*
+ * 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.xsd.xml;
+
+import java.io.BufferedInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.UnsupportedEncodingException;
+import java.net.URL;
+import java.net.URLConnection;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLStreamConstants;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+
+import org.xml.sax.InputSource;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class XMLDocumentHelper {
+    public static final QName WSDL11 = new QName("http://schemas.xmlsoap.org/wsdl/", "definitions");
+    public static final QName XSD = new QName("http://www.w3.org/2001/XMLSchema", "schema");
+    public static final QName WSDL20 = new QName("http://www.w3.org/ns/wsdl", "description");
+
+    protected static final int BUFFER_SIZE = 256;
+
+    /**
+     * Detect the XML encoding of the document
+     * 
+     * @param is The input stream
+     * @return The encoding
+     * @throws IOException
+     */
+    public static String getEncoding(InputStream is) throws IOException {
+        if (!is.markSupported())
+            is = new BufferedInputStream(is);
+
+        byte[] buffer = readBuffer(is);
+        return getXMLEncoding(buffer);
+    }
+
+    /**
+     * Searches the array of bytes to determine the XML encoding.
+     */
+    protected static String getXMLEncoding(byte[] bytes) {
+        String javaEncoding = null;
+
+        if (bytes.length >= 4) {
+            if (((bytes[0] == -2) && (bytes[1] == -1)) || ((bytes[0] == 0) && (bytes[1] == 60)))
+                javaEncoding = "UnicodeBig";
+            else if (((bytes[0] == -1) && (bytes[1] == -2)) || ((bytes[0] == 60) && (bytes[1] == 0)))
+                javaEncoding = "UnicodeLittle";
+            else if ((bytes[0] == -17) && (bytes[1] == -69) && (bytes[2] == -65))
+                javaEncoding = "UTF8";
+        }
+
+        String header = null;
+
+        try {
+            if (javaEncoding != null)
+                header = new String(bytes, 0, bytes.length, javaEncoding);
+            else
+                header = new String(bytes, 0, bytes.length);
+        } catch (UnsupportedEncodingException e) {
+            return null;
+        }
+
+        if (!header.startsWith("<?xml"))
+            return "UTF-8";
+
+        int endOfXMLPI = header.indexOf("?>");
+        int encodingIndex = header.indexOf("encoding", 6);
+
+        if ((encodingIndex == -1) || (encodingIndex > endOfXMLPI))
+            return "UTF-8";
+
+        int firstQuoteIndex = header.indexOf("\"", encodingIndex);
+        int lastQuoteIndex;
+
+        if ((firstQuoteIndex == -1) || (firstQuoteIndex > endOfXMLPI)) {
+            firstQuoteIndex = header.indexOf("'", encodingIndex);
+            lastQuoteIndex = header.indexOf("'", firstQuoteIndex + 1);
+        } else
+            lastQuoteIndex = header.indexOf("\"", firstQuoteIndex + 1);
+
+        return header.substring(firstQuoteIndex + 1, lastQuoteIndex);
+    }
+
+    protected static byte[] readBuffer(InputStream is) throws IOException {
+        if (is.available() == 0) {
+            return new byte[0];
+        }
+
+        byte[] buffer = new byte[BUFFER_SIZE];
+        is.mark(BUFFER_SIZE);
+        int bytesRead = is.read(buffer, 0, BUFFER_SIZE);
+        int totalBytesRead = bytesRead;
+
+        while (bytesRead != -1 && (totalBytesRead < BUFFER_SIZE)) {
+            bytesRead = is.read(buffer, totalBytesRead, BUFFER_SIZE - totalBytesRead);
+
+            if (bytesRead != -1)
+                totalBytesRead += bytesRead;
+        }
+
+        if (totalBytesRead < BUFFER_SIZE) {
+            byte[] smallerBuffer = new byte[totalBytesRead];
+            System.arraycopy(buffer, 0, smallerBuffer, 0, totalBytesRead);
+            smallerBuffer = buffer;
+        }
+
+        is.reset();
+        return buffer;
+    }
+
+    public static InputSource getInputSource(URL url) throws IOException {
+        URLConnection connection = url.openConnection();
+        connection.setUseCaches(false);
+        InputStream is = connection.getInputStream();
+        return getInputSource(url, is);
+    }
+
+    public static InputSource getInputSource(URL url, InputStream is) throws IOException {
+        is = new BufferedInputStream(is);
+        String encoding = getEncoding(is);
+        InputSource inputSource = new InputSource(is);
+        inputSource.setEncoding(encoding);
+        // [rfeng] Make sure we set the system id as it will be used as the base URI for nested import/include 
+        inputSource.setSystemId(url.toString());
+        return inputSource;
+    }
+
+    public static String readTargetNamespace(URL doc, QName element, boolean rootOnly, String attribute, XMLInputFactory inputFactory)
+        throws IOException, XMLStreamException {
+        if (attribute == null) {
+            attribute = "targetNamespace";
+        }
+        URLConnection connection = doc.openConnection();
+        connection.setUseCaches(false);
+        InputStream is = connection.getInputStream();
+        try {
+            XMLStreamReader reader = inputFactory.createXMLStreamReader(is);
+            int eventType = reader.getEventType();
+            while (true) {
+                if (eventType == XMLStreamConstants.START_ELEMENT) {
+                    if (element.equals(reader.getName())) {
+                        return reader.getAttributeValue(null, attribute);
+                    } else if (rootOnly) {
+                        return null;
+                    }
+                }
+                if (reader.hasNext()) {
+                    eventType = reader.next();
+                } else {
+                    break;
+                }
+            }
+            return null;
+        } finally {
+            is.close();
+        }
+    }
+
+}
diff --git a/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/main/java/org/apache/tuscany/sca/xsd/xml/XSDDocumentProcessor.java b/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/main/java/org/apache/tuscany/sca/xsd/xml/XSDDocumentProcessor.java
new file mode 100644
index 0000000000..e3042a607d
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/main/java/org/apache/tuscany/sca/xsd/xml/XSDDocumentProcessor.java
@@ -0,0 +1,102 @@
+/*
+ * 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.xsd.xml;
+
+import java.net.URI;
+import java.net.URL;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLInputFactory;
+
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessor;
+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.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.Problem;
+import org.apache.tuscany.sca.monitor.Problem.Severity;
+import org.apache.tuscany.sca.monitor.impl.ProblemImpl;
+import org.apache.tuscany.sca.xsd.XSDFactory;
+import org.apache.tuscany.sca.xsd.XSDefinition;
+
+/**
+ * An ArtifactProcessor for XSD documents.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class XSDDocumentProcessor implements URLArtifactProcessor<XSDefinition> {
+
+    private XSDFactory factory;
+    private XMLInputFactory inputFactory;
+    private Monitor monitor;
+
+    public XSDDocumentProcessor(ModelFactoryExtensionPoint modelFactories, Monitor monitor) {
+        this.factory = modelFactories.getFactory(XSDFactory.class);
+        this.inputFactory = modelFactories.getFactory(XMLInputFactory.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 = new ProblemImpl(this.getClass().getName(), "xsd-xml-validation-messages", Severity.ERROR, model, message, ex);
+            monitor.problem(problem);
+        }        
+    }
+
+    public XSDefinition read(URL contributionURL, URI artifactURI, URL artifactURL) throws ContributionReadException {
+        try {
+            return indexRead(artifactURL);
+        } catch (Exception e) {
+            ContributionReadException ce = new ContributionReadException(e);
+            error("ContributionReadException", artifactURL, ce);
+            throw ce;
+        }
+    }
+
+    public void resolve(XSDefinition model, ModelResolver resolver) throws ContributionResolveException {
+    }
+
+    public String getArtifactType() {
+        return ".xsd";
+    }
+
+    public Class<XSDefinition> getModelType() {
+        return XSDefinition.class;
+    }
+
+    public static final QName XSD = new QName("http://www.w3.org/2001/XMLSchema", "schema");
+
+    protected XSDefinition indexRead(URL doc) throws Exception {
+        XSDefinition xsd = factory.createXSDefinition();
+        xsd.setUnresolved(true);
+        xsd.setNamespace(XMLDocumentHelper.readTargetNamespace(doc, XSD, true, "targetNamespace", inputFactory));
+        xsd.setLocation(doc.toURI());
+        xsd.setUnresolved(false);
+        return xsd;
+    }
+}
diff --git a/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/main/java/org/apache/tuscany/sca/xsd/xml/XSDModelResolver.java b/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/main/java/org/apache/tuscany/sca/xsd/xml/XSDModelResolver.java
new file mode 100644
index 0000000000..fb6e8eac20
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/main/java/org/apache/tuscany/sca/xsd/xml/XSDModelResolver.java
@@ -0,0 +1,343 @@
+/*

+ * 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.xsd.xml;

+

+import java.io.IOException;

+import java.net.URL;

+import java.util.ArrayList;

+import java.util.HashMap;

+import java.util.List;

+import java.util.Map;

+

+import org.apache.tuscany.sca.contribution.Artifact;

+import org.apache.tuscany.sca.contribution.Contribution;

+import org.apache.tuscany.sca.contribution.DefaultImport;

+import org.apache.tuscany.sca.contribution.Import;

+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;

+import org.apache.tuscany.sca.contribution.namespace.NamespaceImport;

+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;

+import org.apache.tuscany.sca.contribution.service.ContributionRuntimeException;

+import org.apache.tuscany.sca.xsd.DefaultXSDFactory;

+import org.apache.tuscany.sca.xsd.XSDFactory;

+import org.apache.tuscany.sca.xsd.XSDefinition;

+import org.apache.tuscany.sca.xsd.impl.XSDefinitionImpl;

+import org.apache.ws.commons.schema.XmlSchema;

+import org.apache.ws.commons.schema.XmlSchemaCollection;

+import org.apache.ws.commons.schema.XmlSchemaInclude;

+import org.apache.ws.commons.schema.resolver.URIResolver;

+import org.xml.sax.InputSource;

+

+/**

+ * A Model Resolver for XSD models.

+ *

+ * @version $Rev$ $Date$

+ */

+public class XSDModelResolver implements ModelResolver {

+    private static final String AGGREGATED_XSD = "http://tuscany.apache.org/aggregated.xsd";

+    private XSDFactory factory;

+    private Contribution contribution;

+    private Map<String, List<XSDefinition>> map = new HashMap<String, List<XSDefinition>>();

+    private XmlSchemaCollection schemaCollection;

+

+    public XSDModelResolver(Contribution contribution, ModelFactoryExtensionPoint modelFactories) {

+        this.contribution = contribution;

+        this.schemaCollection = new XmlSchemaCollection();

+        schemaCollection.setSchemaResolver(new URIResolverImpl(contribution));

+        this.factory = new DefaultXSDFactory();

+    }

+

+    public void addModel(Object resolved) {

+        XSDefinition definition = (XSDefinition)resolved;

+        List<XSDefinition> list = map.get(definition.getNamespace());

+        if (list == null) {

+            list = new ArrayList<XSDefinition>();

+            map.put(definition.getNamespace(), list);

+        }

+        list.add(definition);

+    }

+

+    public Object removeModel(Object resolved) {

+        XSDefinition definition = (XSDefinition)resolved;

+        List<XSDefinition> list = map.get(definition.getNamespace());

+        if (list == null) {

+            return null;

+        } else {

+            return list.remove(definition);

+        }

+    }

+

+    public <T> T resolveModel(Class<T> modelClass, T unresolved) {

+

+        XSDefinition definition = (XSDefinition)unresolved;

+        String namespace = definition.getNamespace();

+

+        // Lookup a definition for the given namespace within the

+        // current contribution.

+        List<XSDefinition> list = map.get(namespace);

+        XSDefinition modelXSD = null;

+        if (list != null && definition.getDocument() != null) {

+            // Set the document for the inline schema

+            int index = list.indexOf(definition);

+            if (index != -1) {  // a matching (not identical) document was found

+                modelXSD = list.get(index);

+                modelXSD.setDocument(definition.getDocument());

+            }

+        }

+        if (list == null && definition.getDocument() != null) {

+        	// Hit for the 1st time

+        	list = new ArrayList<XSDefinition>();

+        	list.add(definition);

+        	map.put(namespace, list);

+        }

+        XSDefinition resolved = null;

+        try {

+            resolved = aggregate(list);

+        } catch (ContributionRuntimeException e) {

+            throw new ContributionRuntimeException(e);

+        }

+        if (resolved != null && !resolved.isUnresolved()) {

+            if (definition.isUnresolved() && definition.getSchema() == null && modelXSD != null) {

+                // Update the unresolved model with schema information and mark it

+                // resolved.  This information in the unresolved model is needed when

+                // this method is called by WSDLModelResolver.readInlineSchemas().

+                definition.setSchema(modelXSD.getSchema());

+                definition.setSchemaCollection(modelXSD.getSchemaCollection());

+                definition.setUnresolved(false);

+            }

+            return modelClass.cast(resolved);

+        }

+

+        // No definition found, delegate the resolution to the imports

+        for (Import import_ : this.contribution.getImports()) {

+            if (import_ instanceof NamespaceImport) {

+                NamespaceImport namespaceImport = (NamespaceImport)import_;

+                if (namespaceImport.getNamespace().equals(namespace)) {

+

+                    // Delegate the resolution to the namespace import resolver

+                    resolved =

+                        namespaceImport.getModelResolver().resolveModel(XSDefinition.class, (XSDefinition)unresolved);

+                    if (!resolved.isUnresolved()) {

+                        return modelClass.cast(resolved);

+                    }

+                }

+            } else if (import_ instanceof DefaultImport) {

+

+                // Delegate the resolution to the default import resolver

+                resolved =

+                    import_.getModelResolver().resolveModel(XSDefinition.class, (XSDefinition)unresolved);

+                if (!resolved.isUnresolved()) {

+                    return modelClass.cast(resolved);

+                }

+            }

+        }

+        return modelClass.cast(unresolved);

+    }

+

+    private void loadOnDemand(XSDefinition definition) throws ContributionRuntimeException {

+        if (definition.getSchema() != null) {

+            return;

+        }

+        if (definition.getDocument() != null) {

+            String uri = null;

+            if (definition.getLocation() != null) {

+                uri = definition.getLocation().toString();

+            }

+            XmlSchema schema = null;

+            try {

+                schema = schemaCollection.read(definition.getDocument(), uri, null);

+            } catch (RuntimeException e) {

+                // find original cause of the problem

+                Throwable cause = e;

+                while (cause.getCause() != null && cause != cause.getCause()) {

+                    cause = cause.getCause();

+                }

+                throw new ContributionRuntimeException(cause);

+            }

+            definition.setSchemaCollection(schemaCollection);

+            definition.setSchema(schema);

+            definition.setUnresolved(false);

+        } else if (definition.getLocation() != null) {

+            if (definition.getLocation().getFragment() != null) {

+                // It's an inline schema

+                // FIXME: We need to trigger the loading of the enclosing WSDL models

+                return;

+            }

+            // Read an XSD document

+            XmlSchema schema = null;

+            for (XmlSchema d : schemaCollection.getXmlSchemas()) {

+                if (isSameNamespace(d.getTargetNamespace(), definition.getNamespace()))  {

+                    if (d.getSourceURI().equals(definition.getLocation().toString())) {

+                        schema = d;

+                        break;

+                    }

+                }

+            }

+            if (schema == null) {

+                InputSource xsd = null;

+                try {

+                    xsd = XMLDocumentHelper.getInputSource(definition.getLocation().toURL());

+                } catch (IOException e) {

+                    throw new ContributionRuntimeException(e);

+                }

+

+                try {

+                    schema = schemaCollection.read(xsd, null);

+                } catch (RuntimeException e) {

+                    // find original cause of the problem

+                    Throwable cause = e;

+                    while (cause.getCause() != null && cause != cause.getCause()) {

+                        cause = cause.getCause();

+                    }

+                    throw new ContributionRuntimeException(cause);

+                }

+            }

+            definition.setSchemaCollection(schemaCollection);

+            definition.setSchema(schema);

+        }

+    }

+

+    private boolean isSameNamespace(String ns1, String ns2) {

+        if (ns1 == null) {

+            return ns2 == null;

+        } else {

+            return ns1.equals(ns2);

+        }

+    }

+

+    /**

+     * Create a facade XmlSchema which includes all the definitions

+     *

+     * @param definitions A list of the XmlSchema under the same target

+     *                namespace

+     * @return The aggregated XmlSchema

+     */

+    private XSDefinition aggregate(List<XSDefinition> definitions) throws ContributionRuntimeException {

+        if (definitions == null || definitions.size() == 0) {

+            return null;

+        }

+        if (definitions.size() == 1) {

+            XSDefinition d = definitions.get(0);

+            loadOnDemand(d);

+            return d;

+        }

+        XSDefinition aggregated = factory.createXSDefinition();

+        for (XSDefinition d : definitions) {

+            loadOnDemand(d);

+        }

+        String ns = definitions.get(0).getNamespace();

+

+        XmlSchema facade = null;

+        // Check if the facade XSD is already in the collection

+        for (XmlSchema s : schemaCollection.getXmlSchema(AGGREGATED_XSD)) {

+            if (ns.equals(s.getTargetNamespace())) {

+                facade = s;

+                break;

+            }

+        }

+        if (facade == null) {

+            // This will add the facade into the collection

+            facade = new XmlSchema(ns, AGGREGATED_XSD, schemaCollection);

+        }

+

+        for (XmlSchema d : schemaCollection.getXmlSchemas()) {

+            if (ns.equals(d.getTargetNamespace())) {

+                if (d == facade) {

+                    continue;

+                }

+                XmlSchemaInclude include = new XmlSchemaInclude();

+                include.setSchema(d);

+                include.setSourceURI(d.getSourceURI());

+                include.setSchemaLocation(d.getSourceURI());

+                facade.getIncludes().add(include);

+                facade.getItems().add(include);

+            }

+        }

+        aggregated.setUnresolved(true);

+        aggregated.setSchema(facade);

+        aggregated.setNamespace(ns);

+        aggregated.setAggregatedDefinitions(definitions);

+        aggregated.setUnresolved(false);

+

+        // FIXME: [rfeng] This is hacky

+        //definitions.clear();

+        //definitions.add(aggregated);

+        return aggregated;

+    }

+

+    /**

+     * URI resolver implementation for XML schema

+     */

+    public static class URIResolverImpl implements URIResolver {

+        private Contribution contribution;

+

+        public URIResolverImpl(Contribution contribution) {

+            this.contribution = contribution;

+        }

+

+        public InputSource resolveEntity(String targetNamespace, String schemaLocation, String baseUri) {

+            try {

+                if (schemaLocation == null) {

+                    return null;

+                }

+                URL url = null;

+                if (schemaLocation.startsWith("/")) {

+                    // The URI is relative to the contribution

+                    String uri = schemaLocation.substring(1);

+                    for (Artifact a : contribution.getArtifacts()) {

+                        if (a.getURI().equals(uri)) {

+                            url = new URL(a.getLocation());

+                            break;

+                        }

+                    }

+                    if (url == null) {

+                        // URI not found in the contribution; return a default InputSource

+                        // so that the XmlSchema code will produce a useful diagnostic

+                        return new InputSource(schemaLocation);

+                    }

+                } else {

+                    url = new URL(new URL(baseUri), schemaLocation);

+                }

+                return XMLDocumentHelper.getInputSource(url);

+            } catch (IOException e) {               

+            	// If we are not able to resolve the imports using location, then 

+            	// try resolving them using the namespace.

+            	try {

+	                for (Artifact artifact : contribution.getArtifacts()) {

+	        			if (artifact.getModel() instanceof XSDefinitionImpl) {

+	        				String artifactNamespace = ((XSDefinitionImpl)artifact.getModel()).getNamespace();

+	        				if (targetNamespace.equals(artifactNamespace)) {

+	        					URL artifactLocation = ((XSDefinitionImpl)artifact.getModel()).getLocation().toURL();            					

+	        					return XMLDocumentHelper.getInputSource(artifactLocation);

+	        				}

+	        			}

+	        	    }

+                } catch (IOException ex) {

+                	// Invalid URI; return a default InputSource so that the

+                    // XmlSchema code will produce a useful diagnostic

+                    return new InputSource(schemaLocation);

+                }

+                // Invalid URI; return a default InputSource so that the

+                // XmlSchema code will produce a useful diagnostic

+                return new InputSource(schemaLocation);

+            }

+        }

+    }

+

+}

diff --git a/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.URLArtifactProcessor b/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.URLArtifactProcessor
new file mode 100644
index 0000000000..1ec3d27200
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.URLArtifactProcessor
@@ -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.xsd.xml.XSDDocumentProcessor;type=.xsd,model=org.apache.tuscany.sca.xsd.XSDefinition
diff --git a/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.resolver.ModelResolver b/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.resolver.ModelResolver
new file mode 100644
index 0000000000..a67ecf063a
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.resolver.ModelResolver
@@ -0,0 +1,18 @@
+# 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. 
+
+org.apache.tuscany.sca.xsd.xml.XSDModelResolver;model=org.apache.tuscany.sca.xsd.XSDefinition
diff --git a/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/main/resources/xsd-xml-validation-messages.properties b/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/main/resources/xsd-xml-validation-messages.properties
new file mode 100644
index 0000000000..ab50456510
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/main/resources/xsd-xml-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.
+#
+#
+ContributionReadException = ContributionReadException occured due to : {0}
+
+
diff --git a/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/test/java/org/apache/tuscany/sca/xsd/xml/XMLDocumentHelperTestCase.java b/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/test/java/org/apache/tuscany/sca/xsd/xml/XMLDocumentHelperTestCase.java
new file mode 100644
index 0000000000..f245377d87
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/test/java/org/apache/tuscany/sca/xsd/xml/XMLDocumentHelperTestCase.java
@@ -0,0 +1,51 @@
+/*
+ * 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.xsd.xml;
+
+import java.net.URL;
+
+import javax.xml.stream.XMLInputFactory;
+
+import junit.framework.Assert;
+
+import org.junit.Before;
+import org.junit.Test;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class XMLDocumentHelperTestCase {
+    private URL xsd;
+
+    /**
+     * @throws java.lang.Exception
+     */
+    @Before
+    public void setUp() throws Exception {
+        xsd = getClass().getResource("/xsd/greeting.xsd");
+    }
+
+    @Test
+    public void testReadTNS() throws Exception {
+        String tns = XMLDocumentHelper.readTargetNamespace(xsd, XMLDocumentHelper.XSD, true, null, XMLInputFactory.newInstance());
+        Assert.assertEquals("http://greeting", tns);
+    }
+
+}
diff --git a/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/test/java/org/apache/tuscany/sca/xsd/xml/XSDDocumentProcessorTestCase.java b/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/test/java/org/apache/tuscany/sca/xsd/xml/XSDDocumentProcessorTestCase.java
new file mode 100644
index 0000000000..76e6a57c29
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/test/java/org/apache/tuscany/sca/xsd/xml/XSDDocumentProcessorTestCase.java
@@ -0,0 +1,90 @@
+/*
+ * 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.xsd.xml;
+
+import java.net.URI;
+import java.net.URL;
+
+import javax.xml.namespace.QName;
+
+import junit.framework.Assert;
+
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.contribution.processor.ExtensibleURLArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessorExtensionPoint;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.core.DefaultExtensionPointRegistry;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.xsd.XSDefinition;
+import org.apache.ws.commons.schema.XmlSchemaInclude;
+import org.apache.ws.commons.schema.XmlSchemaObjectCollection;
+import org.apache.ws.commons.schema.XmlSchemaType;
+import org.junit.Before;
+import org.junit.Test;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class XSDDocumentProcessorTestCase {
+    private URLArtifactProcessor<Object> documentProcessor;
+    private ModelResolver resolver;
+
+    /**
+     * @throws java.lang.Exception
+     */
+    @Before
+    public void setUp() throws Exception {
+        ExtensionPointRegistry extensionPoints = new DefaultExtensionPointRegistry();
+        URLArtifactProcessorExtensionPoint documentProcessors = extensionPoints.getExtensionPoint(URLArtifactProcessorExtensionPoint.class);
+        documentProcessor = new ExtensibleURLArtifactProcessor(documentProcessors, null);
+        ModelFactoryExtensionPoint modelFactories = extensionPoints.getExtensionPoint(ModelFactoryExtensionPoint.class);
+        resolver = new XSDModelResolver(null, modelFactories);
+    }
+
+    @Test
+    public void testXSD() throws Exception {
+        URL url = getClass().getResource("/xsd/greeting.xsd");
+        XSDefinition definition = (XSDefinition)documentProcessor.read(null, URI.create("xsd/greeting.xsd"), url);
+        Assert.assertNull(definition.getSchema());
+        Assert.assertEquals("http://greeting", definition.getNamespace());
+        URL url1 = getClass().getResource("/xsd/name.xsd");
+        XSDefinition definition1 = (XSDefinition)documentProcessor.read(null, URI.create("xsd/name.xsd"), url1);
+        Assert.assertNull(definition1.getSchema());
+        Assert.assertEquals("http://greeting", definition1.getNamespace());
+        resolver.addModel(definition);
+        XSDefinition resolved = resolver.resolveModel(XSDefinition.class, definition);
+        XmlSchemaObjectCollection collection = resolved.getSchema().getIncludes();
+        Assert.assertTrue(collection.getCount() == 1);
+        XmlSchemaType type =
+            ((XmlSchemaInclude)collection.getItem(0)).getSchema().getTypeByName(new QName("http://greeting", "Name"));
+        Assert.assertNotNull(type);
+        resolver.addModel(definition1);
+        resolved = resolver.resolveModel(XSDefinition.class, definition);
+        collection = resolved.getSchema().getIncludes();
+        Assert.assertTrue(collection.getCount() == 2);
+        XmlSchemaType type1 =
+            ((XmlSchemaInclude)collection.getItem(0)).getSchema().getTypeByName(new QName("http://greeting", "Name"));
+        XmlSchemaType type2 =
+            ((XmlSchemaInclude)collection.getItem(1)).getSchema().getTypeByName(new QName("http://greeting", "Name"));
+        Assert.assertTrue(type1 != null || type2 != null);
+    }
+
+}
diff --git a/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/test/resources/xsd/greeting.xsd b/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/test/resources/xsd/greeting.xsd
new file mode 100644
index 0000000000..635ca25bfc
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/test/resources/xsd/greeting.xsd
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+    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.
+-->
+<schema targetNamespace="http://greeting" xmlns="http://www.w3.org/2001/XMLSchema">
+    <include schemaLocation="name.xsd" />
+    <complexType name="Greeting">
+        <sequence>
+            <element name="message" type="string" />
+            <element name="name" type="Name" />
+        </sequence>
+    </complexType>
+
+</schema>
\ No newline at end of file
diff --git a/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/test/resources/xsd/name.xsd b/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/test/resources/xsd/name.xsd
new file mode 100644
index 0000000000..300de931ec
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.6/modules/xsd-xml/src/test/resources/xsd/name.xsd
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+    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.
+-->
+<schema targetNamespace="http://greeting" xmlns="http://www.w3.org/2001/XMLSchema">
+
+    <complexType name="Name">
+        <sequence>
+            <element name="firstName" type="string" />
+            <element name="lastName" type="string" />
+        </sequence>
+    </complexType>
+
+</schema>
\ No newline at end of file