1 files changed, 97 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/java-stable-20060304/sca/container.java/src/main/java/org/apache/tuscany/container/java/assembly/impl/JavaImplementationImpl.java b/sca-java-1.x/tags/java-stable-20060304/sca/container.java/src/main/java/org/apache/tuscany/container/java/assembly/impl/JavaImplementationImpl.java
new file mode 100644
index 0000000000..5ed0109b1d
--- /dev/null
+++ b/sca-java-1.x/tags/java-stable-20060304/sca/container.java/src/main/java/org/apache/tuscany/container/java/assembly/impl/JavaImplementationImpl.java
@@ -0,0 +1,97 @@
+/**
+ *
+ *  Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
+ *
+ *  Licensed 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.container.java.assembly.impl;
+
+import java.net.URL;
+
+import org.apache.tuscany.container.java.assembly.JavaAssemblyFactory;
+import org.apache.tuscany.container.java.assembly.JavaImplementation;
+import org.apache.tuscany.core.config.impl.Java5ComponentTypeIntrospector;
+import org.apache.tuscany.core.config.ComponentTypeIntrospector;
+import org.apache.tuscany.core.config.ConfigurationException;
+import org.apache.tuscany.core.config.JavaIntrospectionHelper;
+import org.apache.tuscany.model.assembly.AssemblyModelContext;
+import org.apache.tuscany.model.assembly.ComponentType;
+import org.apache.tuscany.model.assembly.impl.ComponentImplementationImpl;
+
+/**
+ * An implementation of JavaImplementation.
+ */
+public class JavaImplementationImpl extends ComponentImplementationImpl implements JavaImplementation {
+
+    private Class<?> implementationClass;
+
+    /**
+     * Constructor
+     */
+    protected JavaImplementationImpl() {
+    }
+
+    /**
+     * @see org.apache.tuscany.container.java.assembly.JavaImplementation#getImplementationClass()
+     */
+    public Class getImplementationClass() {
+        return implementationClass;
+    }
+
+    /**
+     * @see org.apache.tuscany.container.java.assembly.JavaImplementation#setImplementationClass(java.lang.Class)
+     */
+    public void setImplementationClass(Class value) {
+        checkNotFrozen();
+        implementationClass=value;
+    }
+
+    /**
+     * @see org.apache.tuscany.model.assembly.AssemblyModelObject#initialize(org.apache.tuscany.model.assembly.AssemblyModelContext)
+     */
+    public void initialize(AssemblyModelContext modelContext) {
+        if (isInitialized())
+            return;
+
+        // Initialize the component type
+        ComponentType componentType=getComponentType();
+        if (componentType==null) {
+            componentType=createComponentType(modelContext, implementationClass);
+            setComponentType(componentType);
+        }
+        
+        super.initialize(modelContext);
+    }
+
+    /**
+     * Create the component type
+     * @param modelContext
+     * @param implClass
+     */
+    private static ComponentType createComponentType(AssemblyModelContext modelContext, Class<?> implClass) {
+        String baseName = JavaIntrospectionHelper.getBaseName(implClass);
+        URL componentTypeFile = implClass.getResource(baseName + ".componentType");
+        if (componentTypeFile != null) {
+            return modelContext.getAssemblyLoader().loadComponentType(componentTypeFile.toString());
+        } else {
+            JavaAssemblyFactory factory = new JavaAssemblyFactoryImpl();
+            ComponentTypeIntrospector introspector = new Java5ComponentTypeIntrospector(factory);
+            try {
+                return introspector.introspect(implClass);
+            } catch (ConfigurationException e) {
+                throw new IllegalArgumentException("Unable to introspect implementation class: " + implClass.getName(), e);
+            }
+        }
+    }
+
+ }