1 files changed, 147 insertions, 0 deletions
diff --git a/tags/java/sca/2.0-M4-RC1/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/CompositeDocumentProcessor.java b/tags/java/sca/2.0-M4-RC1/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/CompositeDocumentProcessor.java
new file mode 100644
index 0000000000..f3f25f0b65
--- /dev/null
+++ b/tags/java/sca/2.0-M4-RC1/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/CompositeDocumentProcessor.java
@@ -0,0 +1,147 @@
+/*
+ * 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.io.IOException;
+import java.io.InputStream;
+import java.net.URI;
+import java.net.URL;
+
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.common.java.io.IOHelper;
+import org.apache.tuscany.sca.contribution.processor.ContributionReadException;
+import org.apache.tuscany.sca.contribution.processor.ContributionResolveException;
+import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.ValidatingXMLInputFactory;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.monitor.Monitor;
+
+/**
+ * A composite processor.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class CompositeDocumentProcessor extends BaseAssemblyProcessor implements URLArtifactProcessor<Composite> {
+    private ValidatingXMLInputFactory inputFactory;
+    
+
+    /**
+     * Constructs a composite document processor
+     * @param modelFactories
+     * @param staxProcessor
+     * @param monitor
+     */
+    public CompositeDocumentProcessor(FactoryExtensionPoint modelFactories,
+                                      StAXArtifactProcessor<?> staxProcessor) {
+        super(modelFactories, staxProcessor);
+        this.inputFactory = modelFactories.getFactory(ValidatingXMLInputFactory.class);
+    }
+    
+    /**
+     * Reads the contents of a Composite document and returns a Composite object
+     * @param contributionURL - the URL of the contribution containing the Composite - can be null
+     * @param uri - the URI of the composite document
+     * @param url - the URL of the composite document
+     * @return a Composite object built from the supplied Composite document
+     */
+    public Composite read(URL contributionURL, URI uri, URL url, ProcessorContext context) throws ContributionReadException {
+    	if( uri == null || url == null ) {
+    		throw new ContributionReadException("Request to read composite with uri or url NULL");
+    	} // end if
+        InputStream scdlStream = null;
+        
+        try {
+            scdlStream = IOHelper.openStream(url);;
+        } catch (IOException e) {
+            ContributionReadException ce = new ContributionReadException("Exception reading " + uri, e);
+            error(context.getMonitor(), "ContributionReadException", url, ce);
+            throw ce;
+        } 
+        return read(uri, scdlStream, context);
+    }
+
+    public Composite read(URI uri, InputStream scdlStream, ProcessorContext context) throws ContributionReadException {
+        try {       
+            
+            Composite composite = null;
+            Monitor monitor = context.getMonitor();
+            // Tag the monitor with the name of the composite artifact
+            if( monitor != null ) {
+            	monitor.setArtifactName(uri.toString());
+            } //end if
+            
+            XMLStreamReader reader = inputFactory.createXMLStreamReader(scdlStream);
+            // set the monitor on the input factory as the standard XMLInputFactory
+            // methods used for creating readers don't allow for the context to
+            // be passed in
+            ValidatingXMLInputFactory.setMonitor(reader, context.getMonitor());
+            
+            reader.nextTag();
+            
+            // Read the composite model
+            composite = (Composite)extensionProcessor.read(reader, context);
+            if (composite != null) {
+                composite.setURI(uri.toString());
+            }
+
+            return composite;
+            
+        } catch (XMLStreamException e) {
+        	ContributionReadException ce = new ContributionReadException("Exception reading " + uri, e);
+        	error(context.getMonitor(), "ContributionReadException", inputFactory, ce);
+            throw ce;
+        } finally {
+            try {
+                if (scdlStream != null) {
+                    scdlStream.close();
+                    scdlStream = null;
+                }
+            } catch (IOException ioe) {
+                //ignore
+            }
+        }
+    }
+    
+    public void resolve(Composite composite, ModelResolver resolver, ProcessorContext context) throws ContributionResolveException {
+    	try {
+	        if (composite != null)
+	    	    extensionProcessor.resolve(composite, resolver, context);
+    	} catch (Throwable e ) {
+    		// Add information about which composite was being processed when the exception occurred
+    		String newMessage = "Processing composite " + composite.getName() + ": " + e.getMessage();
+    		throw new ContributionResolveException( newMessage, e );
+    	} // end try
+    }
+
+    public String getArtifactType() {
+        return ".composite";
+    }
+    
+    public Class<Composite> getModelType() {
+        return Composite.class;
+    }
+    
+} // end class