1 files changed, 153 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-java/src/main/java/org/apache/tuscany/sca/implementation/java/introspect/impl/ResourceProcessor.java b/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-java/src/main/java/org/apache/tuscany/sca/implementation/java/introspect/impl/ResourceProcessor.java
new file mode 100644
index 0000000000..3abe832cb9
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-java/src/main/java/org/apache/tuscany/sca/implementation/java/introspect/impl/ResourceProcessor.java
@@ -0,0 +1,153 @@
+/*
+ * 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.java.introspect.impl;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Member;
+import java.lang.reflect.Method;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.implementation.java.IntrospectionException;
+import org.apache.tuscany.sca.implementation.java.JavaElementImpl;
+import org.apache.tuscany.sca.implementation.java.JavaImplementation;
+import org.apache.tuscany.sca.implementation.java.JavaParameterImpl;
+import org.apache.tuscany.sca.implementation.java.JavaResourceImpl;
+import org.apache.tuscany.sca.implementation.java.introspect.BaseJavaClassVisitor;
+import org.apache.tuscany.sca.implementation.java.introspect.JavaIntrospectionHelper;
+
+/**
+ * Processes an {@link @Resource} annotation, updating the component type with
+ * corresponding {@link org.apache.tuscany.spi.implementation.java.JavaResourceImpl}
+ * 
+ * @version $Rev$ $Date$
+ */
+public class ResourceProcessor extends BaseJavaClassVisitor {
+    
+    public ResourceProcessor(AssemblyFactory factory) {
+        super(factory);
+    }
+    
+    public ResourceProcessor(ExtensionPointRegistry registry) {
+        super(registry);
+    }    
+
+    @Override
+    public void visitMethod(Method method, JavaImplementation type) throws IntrospectionException {
+        org.apache.tuscany.sca.implementation.java.introspect.impl.Resource annotation = method
+            .getAnnotation(org.apache.tuscany.sca.implementation.java.introspect.impl.Resource.class);
+        if (annotation == null) {
+            return;
+        }
+        if (method.getParameterTypes().length != 1) {
+            throw new IllegalResourceException("Resource setter must have one parameter", method);
+        }
+        String name = annotation.name();
+        if (name.length() < 1) {
+            name = JavaIntrospectionHelper.toPropertyName(method.getName());
+        }
+        if (type.getResources().get(name) != null) {
+            throw new DuplicateResourceException(name);
+        }
+
+        String mappedName = annotation.mappedName();
+        JavaResourceImpl resource = createResource(name, new JavaElementImpl(method, 0));
+        resource.setOptional(annotation.optional());
+        if (mappedName.length() > 0) {
+            resource.setMappedName(mappedName);
+        }
+        type.getResources().put(resource.getName(), resource);
+    }
+
+    @Override
+    public void visitField(Field field, JavaImplementation type) throws IntrospectionException {
+
+        org.apache.tuscany.sca.implementation.java.introspect.impl.Resource annotation = field
+            .getAnnotation(org.apache.tuscany.sca.implementation.java.introspect.impl.Resource.class);
+        if (annotation == null) {
+            return;
+        }
+        String name = annotation.name();
+        if (name.length() < 1) {
+            name = field.getName();
+        }
+        if (type.getResources().get(name) != null) {
+            throw new DuplicateResourceException(name);
+        }
+
+        String mappedName = annotation.mappedName();
+
+        JavaResourceImpl resource = createResource(name, new JavaElementImpl(field));
+        resource.setOptional(annotation.optional());
+        if (mappedName.length() > 0) {
+            resource.setMappedName(mappedName);
+        }
+        type.getResources().put(resource.getName(), resource);
+    }
+
+    @Override
+    public void visitConstructorParameter(JavaParameterImpl parameter, JavaImplementation type)
+        throws IntrospectionException {
+        org.apache.tuscany.sca.implementation.java.introspect.impl.Resource resourceAnnotation = parameter
+            .getAnnotation(org.apache.tuscany.sca.implementation.java.introspect.impl.Resource.class);
+        if (resourceAnnotation != null) {
+            String name = resourceAnnotation.name();
+            if ("".equals(name)) {
+                name = parameter.getName();
+            }
+            if ("".equals(name)) {
+                throw new InvalidResourceException("Missing resource name", (Member)parameter.getAnchor());
+            }
+
+            if (!"".equals(parameter.getName()) && !name.equals(parameter.getName())) {
+                throw new InvalidConstructorException("Mismatched resource name: " + parameter);
+            }
+
+            if (type.getResources().get(name) != null) {
+                throw new DuplicateResourceException(name);
+            }
+
+            String mappedName = resourceAnnotation.mappedName();
+
+            JavaResourceImpl resource = createResource(name, parameter);
+            resource.setOptional(resourceAnnotation.optional());
+            if (mappedName.length() > 0) {
+                resource.setMappedName(mappedName);
+            }
+            type.getResources().put(resource.getName(), resource);
+        }
+    }
+
+
+    /**
+     * Utility methods
+     */
+    
+    /**
+     * 
+     * @param name
+     * @param element
+     * @return
+     */
+    private static JavaResourceImpl createResource(String name, JavaElementImpl element) {
+        element.setClassifer(org.apache.tuscany.sca.implementation.java.introspect.impl.Resource.class);
+        element.setName(name);
+        return new JavaResourceImpl(element);
+    }
+}