1 files changed, 207 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.2.1/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/impl/BPELImplementationProcessor.java b/sca-java-1.x/tags/1.2.1/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/impl/BPELImplementationProcessor.java
new file mode 100644
index 0000000000..e1144186be
--- /dev/null
+++ b/sca-java-1.x/tags/1.2.1/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/impl/BPELImplementationProcessor.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.implementation.bpel.impl;
+
+import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
+
+import java.util.HashMap;
+import java.util.Map;
+
+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.ComponentType;
+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.assembly.xml.Constants;
+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.databinding.xml.DOMDataBinding;
+import org.apache.tuscany.sca.implementation.bpel.BPELFactory;
+import org.apache.tuscany.sca.implementation.bpel.BPELImplementation;
+import org.apache.tuscany.sca.implementation.bpel.BPELProcessDefinition;
+import org.apache.tuscany.sca.implementation.bpel.DefaultBPELFactory;
+
+/**
+ * Implements a STAX artifact processor for BPEL implementations.
+ * 
+ * The artifact processor is responsible for processing <implementation.bpel>
+ * elements in SCA assembly XML composite files and populating the BPEL
+ * implementation model, resolving its references to other artifacts in the SCA
+ * contribution, and optionally write the model back to SCA assembly XML.
+ * 
+ *  @version $Rev$ $Date$
+ */
+public class BPELImplementationProcessor extends BaseStAXArtifactProcessor implements StAXArtifactProcessor<BPELImplementation> {
+    private static final QName IMPLEMENTATION_BPEL = new QName(Constants.SCA10_NS, "implementation.bpel");
+    
+    private AssemblyFactory assemblyFactory;
+    private BPELFactory bpelFactory;
+    
+    public BPELImplementationProcessor(ModelFactoryExtensionPoint modelFactories) {
+        this.assemblyFactory = modelFactories.getFactory(AssemblyFactory.class);
+        this.bpelFactory = new DefaultBPELFactory(modelFactories);
+    }
+
+    public QName getArtifactType() {
+        // Returns the qname of the XML element processed by this processor
+        return IMPLEMENTATION_BPEL;
+    }
+
+    public Class<BPELImplementation> getModelType() {
+        // Returns the type of model processed by this processor
+        return BPELImplementation.class;
+    }
+
+    public BPELImplementation read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException {
+        assert IMPLEMENTATION_BPEL.equals(reader.getName());
+        
+        // Read an <implementation.bpel> element
+
+        // Read the process attribute. 
+        QName process = getAttributeValueNS(reader, "process");
+
+
+        // Create an initialize the BPEL implementation model
+        BPELImplementation implementation = bpelFactory.createBPELImplementation();
+        implementation.setProcess(process);
+        implementation.setUnresolved(true);
+        
+        // Skip to end element
+        while (reader.hasNext()) {
+            if (reader.next() == END_ELEMENT && IMPLEMENTATION_BPEL.equals(reader.getName())) {
+                break;
+            }
+        }
+        
+        return implementation;
+    }
+
+    public void resolve(BPELImplementation impl, ModelResolver resolver) throws ContributionResolveException {
+        if( impl != null && impl.isUnresolved()) {
+            BPELProcessDefinition processDefinition = resolveBPELProcessDefinition(impl, resolver);
+            if(processDefinition.isUnresolved()) {
+                throw new ContributionResolveException("Can't find BPEL Process : " + processDefinition.getName());
+            }
+            
+            impl.setProcessDefinition(processDefinition);
+            
+            //resolve component type
+            mergeComponentType(resolver, impl);
+                        
+            //set current implementation resolved 
+            impl.setUnresolved(false);
+        }
+        
+    }
+
+    public void write(BPELImplementation model, XMLStreamWriter outputSource) throws ContributionWriteException {
+        //FIXME Implement
+    }
+
+    private BPELProcessDefinition resolveBPELProcessDefinition(BPELImplementation impl, ModelResolver resolver) throws ContributionResolveException {
+        QName processName = impl.getProcess();
+        BPELProcessDefinition processDefinition = this.bpelFactory.createBPELProcessDefinition();
+        processDefinition.setName(processName);
+        processDefinition.setUnresolved(true);
+        
+        return resolver.resolveModel(BPELProcessDefinition.class, processDefinition);
+    }
+    
+    
+    /**
+     * Merge the componentType from introspection and external file
+     * @param resolver
+     * @param impl
+     */
+    private void mergeComponentType(ModelResolver resolver, BPELImplementation impl) {
+        // FIXME: Need to clarify how to merge
+        ComponentType componentType = getComponentType(resolver, impl);
+        if (componentType != null && !componentType.isUnresolved()) {
+            
+            Map<String, Reference> refMap = new HashMap<String, Reference>();
+            for (Reference ref : impl.getReferences()) {
+                refMap.put(ref.getName(), ref);
+            }
+            for (Reference reference : componentType.getReferences()) {
+                refMap.put(reference.getName(), reference);
+            }
+            impl.getReferences().clear();
+            impl.getReferences().addAll(refMap.values());
+
+            Map<String, Service> serviceMap = new HashMap<String, Service>();
+            for (Service svc : impl.getServices()) {
+                if(svc != null) {
+                    serviceMap.put(svc.getName(), svc);    
+                }
+            }
+            for (Service service : componentType.getServices()) {
+                //set default dataBinding to DOM
+                service.getInterfaceContract().getInterface().resetDataBinding(DOMDataBinding.NAME);
+                
+                serviceMap.put(service.getName(), service);
+            }
+            impl.getServices().clear();
+            impl.getServices().addAll(serviceMap.values());
+
+            Map<String, Property> propMap = new HashMap<String, Property>();
+            for (Property prop : impl.getProperties()) {
+                propMap.put(prop.getName(), prop);
+            }
+        }
+    }
+
+
+    private ComponentType getComponentType(ModelResolver resolver, BPELImplementation impl) {
+        String bpelProcessURI = impl.getProcessDefinition().getURI().toString();
+        String componentTypeURI = bpelProcessURI.replace(".bpel", ".componentType");
+        ComponentType componentType = assemblyFactory.createComponentType();
+        componentType.setUnresolved(true);
+        componentType.setURI(componentTypeURI);
+        componentType = resolver.resolveModel(ComponentType.class, componentType);
+        if (!componentType.isUnresolved()) {
+            return componentType;
+        }
+        return null;
+    }
+
+    private QName getAttributeValueNS(XMLStreamReader reader, String attribute) {
+        String fullValue = reader.getAttributeValue(null, "process");
+        if (fullValue.indexOf(":") < 0)
+            throw new ODEProcessException("Attribute " + attribute + " with value " + fullValue +
+                    " in your composite should be prefixed (process=\"prefix:name\").");
+        String prefix = fullValue.substring(0, fullValue.indexOf(":"));
+        String name = fullValue.substring(fullValue.indexOf(":") + 1);
+        String nsUri = reader.getNamespaceContext().getNamespaceURI(prefix);
+        if (nsUri == null)
+            throw new ODEProcessException("Attribute " + attribute + " with value " + fullValue +
+                    " in your composite has un unrecognized namespace prefix.");
+        return new QName(nsUri, name, prefix);
+    }
+
+}