1 files changed, 96 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/CompositeModelResolver.java b/sca-java-2.x/tags/2.0.1-RC1/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/CompositeModelResolver.java
new file mode 100644
index 0000000000..7a396fe100
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/CompositeModelResolver.java
@@ -0,0 +1,96 @@
+/*
+ * 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.util.HashMap;
+import java.util.Map;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.contribution.Contribution;
+import org.apache.tuscany.sca.contribution.Import;
+import org.apache.tuscany.sca.contribution.namespace.NamespaceImport;
+import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.monitor.Monitor;
+
+/**
+ * A Model Resolver for Composite models.
+ *
+ * @version $Rev$ $Date$
+ */
+public class CompositeModelResolver implements ModelResolver {
+
+    private Contribution contribution;
+    private Map<QName, Composite> map = new HashMap<QName, Composite>();
+
+    public CompositeModelResolver(Contribution contribution, FactoryExtensionPoint modelFactories) {
+        this.contribution = contribution;
+    }
+
+    public void addModel(Object resolved, ProcessorContext context) {
+        Composite composite = (Composite)resolved;
+        Composite old = map.put(composite.getName(), composite);
+        if (old != null) {
+            Monitor.error(context.getMonitor(),
+                          this,
+                          Messages.RESOURCE_BUNDLE,
+                          "DuplicateCompositeName",
+                          composite.getName().toString(),
+                          contribution.getLocation());
+        }
+    }
+
+    public Object removeModel(Object resolved, ProcessorContext context) {
+        return map.remove(((Composite)resolved).getName());
+    }
+
+    public <T> T resolveModel(Class<T> modelClass, T unresolved, ProcessorContext context) {
+
+        // Lookup a definition for the given namespace
+        QName qname = ((Composite)unresolved).getName();
+        Composite resolved = null;
+        
+        // Delegate the resolution to the imports
+        for (Import import_ : this.contribution.getImports()) {
+            if (import_ instanceof NamespaceImport) {
+                NamespaceImport namespaceImport = (NamespaceImport)import_;
+                if (namespaceImport.getNamespace().equals(qname.getNamespaceURI())) {
+
+                    // Delegate the resolution to the import resolver
+                    resolved = namespaceImport.getModelResolver().resolveModel(Composite.class, (Composite)unresolved, context);
+                    if (!resolved.isUnresolved()) {
+                        return modelClass.cast(resolved);
+                    }
+                }
+            }
+        }
+        
+        // No definition found, search within the current contribution
+        resolved = (Composite) map.get(qname);
+        if (resolved != null) {
+            return modelClass.cast(resolved);
+        }
+        
+        return (T)unresolved;
+    }
+}