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diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentServiceEndpointBuilderImpl.java b/sandbox/ant/sca/branches/2.0-M2/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentServiceEndpointBuilderImpl.java
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+/*
+ * 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.builder.impl;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.CompositeService;
+import org.apache.tuscany.sca.assembly.Endpoint2;
+import org.apache.tuscany.sca.assembly.EndpointReference2;
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilder;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
+import org.apache.tuscany.sca.definitions.Definitions;
+import org.apache.tuscany.sca.monitor.Monitor;
+
+/**
+ * A composite builder that creates endpoint models for component services.
+ *
+ * @version $Rev$ $Date$
+ */
+public class ComponentServiceEndpointBuilderImpl implements CompositeBuilder {
+    private AssemblyFactory assemblyFactory;
+
+    public ComponentServiceEndpointBuilderImpl(AssemblyFactory assemblyFactory) {
+        this.assemblyFactory = assemblyFactory;
+    }
+
+    public String getID() {
+        return "org.apache.tuscany.sca.assembly.builder.ComponentReferenceEndpointReferenceBuilder";
+    }
+
+    /**
+     * Create endpoint models for all component services.
+     * 
+     * @param composite
+     */
+    public void build(Composite composite, Definitions definitions, Monitor monitor) throws CompositeBuilderException {
+    
+        // process top level composite services
+        // TODO - I don't think OASIS spec doesn't allows composite references in the domain composite
+        //
+        // processCompositeServices(composite);
+        
+        // process component services
+        processComponentServices(composite);
+ 
+    }
+    
+    private void processCompositeServices(Composite composite) {
+        // top level services are treated slightly differently
+        // as no component will use these top level services 
+        // as part of its component type. In this case we push down 
+        // the service configuration to create a new endpoint on the
+        // component from which the service is promoted
+        for (Service service : composite.getServices()) {
+            
+            Component promotedComponent = ((CompositeService)service).getPromotedComponent();
+            ComponentService promotedService = ((CompositeService)service).getPromotedService();
+            
+            if (promotedService != null) {
+                for (Binding binding : service.getBindings()){
+                    Endpoint2 endpoint = assemblyFactory.createEndpoint();
+                    endpoint.setComponent(promotedComponent);
+                    endpoint.setService(promotedService);
+                    endpoint.setBinding(binding);
+                    endpoint.setUnresolved(false);
+                    promotedService.getEndpoints().add(endpoint);
+                }
+            }
+        }
+    }
+    
+    private void processComponentServices(Composite composite) {
+
+        for (Component component : composite.getComponents()) {
+           
+            // recurse for composite implementations
+            Implementation implementation = component.getImplementation();
+            if (implementation instanceof Composite) {
+                processComponentServices((Composite)implementation);
+            }
+
+            // create an endpoint for each component service binding
+            for (ComponentService service : component.getServices()) {
+                
+                Component endpointComponent = component;
+                ComponentService endpointService = service;
+                
+                // TODO - EPR - We maintain all endpoints at the right level now
+                //              but endpoints for promoting services must point down
+                //              to the services they promote. 
+                if (service.getService() instanceof CompositeService) {
+                    CompositeService compositeService = (CompositeService)service.getService();
+                    endpointService = ServiceConfigurationUtil.getPromotedComponentService(compositeService);
+                    endpointComponent = ServiceConfigurationUtil.getPromotedComponent(compositeService);
+                } 
+                
+                // if this service has a callback get the callback endpoint references
+                List<EndpointReference2> callbackEndpointReferences = null;
+                
+                if ((service.getInterfaceContract() != null) &&
+                    (service.getInterfaceContract().getCallbackInterface() != null)){
+                    // find the callback reference
+                    for ( Reference reference : component.getReferences()){
+                        if ( reference.getName().equals(service.getName())){
+                            callbackEndpointReferences = reference.getEndpointReferences();
+                            break;
+                        }
+                    } 
+                }
+                
+                for (Binding binding : service.getBindings()){
+                    Endpoint2 endpoint = assemblyFactory.createEndpoint();
+                    endpoint.setComponent(endpointComponent);
+                    endpoint.setService(endpointService);
+                    endpoint.setBinding(binding);
+                    if (callbackEndpointReferences != null) {
+                        endpoint.getCallbackEndpointReferences().addAll(callbackEndpointReferences);
+                    }
+                    endpoint.setUnresolved(false);
+                    service.getEndpoints().add(endpoint);
+                }
+            }
+        }
+    }
+
+}