1 files changed, 116 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/interface-java-jaxrs/src/main/java/org/apache/tuscany/sca/interfacedef/java/jaxrs/JAXRSJavaInterfaceProcessor.java b/sca-java-2.x/tags/2.0.1-RC1/modules/interface-java-jaxrs/src/main/java/org/apache/tuscany/sca/interfacedef/java/jaxrs/JAXRSJavaInterfaceProcessor.java
new file mode 100644
index 0000000000..83f88c98cb
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/interface-java-jaxrs/src/main/java/org/apache/tuscany/sca/interfacedef/java/jaxrs/JAXRSJavaInterfaceProcessor.java
@@ -0,0 +1,116 @@
+/*
+ * 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.interfacedef.java.jaxrs;
+
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import javax.ws.rs.DELETE;
+import javax.ws.rs.GET;
+import javax.ws.rs.HEAD;
+import javax.ws.rs.HttpMethod;
+import javax.ws.rs.OPTIONS;
+import javax.ws.rs.POST;
+import javax.ws.rs.PUT;
+
+import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
+import org.apache.tuscany.sca.interfacedef.java.JavaOperation;
+import org.apache.tuscany.sca.interfacedef.java.introspect.JavaInterfaceVisitor;
+
+public class JAXRSJavaInterfaceProcessor implements JavaInterfaceVisitor {
+    private static Map<String, Class<?>> mapping = new HashMap<String, Class<?>>();
+    static {
+        mapping.put(HttpMethod.GET, GET.class);
+        mapping.put(HttpMethod.POST, POST.class);
+        mapping.put(HttpMethod.PUT, PUT.class);
+        mapping.put(HttpMethod.DELETE, DELETE.class);
+        mapping.put(HttpMethod.HEAD, HEAD.class);
+        mapping.put(HttpMethod.OPTIONS, OPTIONS.class);
+    }
+
+    private boolean introspectHTTPMethod(JavaOperation operation) {
+        Method method = operation.getJavaMethod();
+
+        String methodName = null;
+
+        /**
+         * A request method designator is a runtime annotation that is annotated with the @HttpMethod annotation.
+         * JAX-RS defines a set of request method designators for the common HTTP methods: @GET, @POST, @PUT,
+         * @DELETE, @HEAD. Users may define their own custom request method designators including alternate 
+         * designators for the common HTTP methods.
+         */
+        for (Annotation a : method.getAnnotations()) {
+            Class<?> annotationType = a.annotationType();
+            if (annotationType == HttpMethod.class) {
+                methodName = ((HttpMethod)a).value();
+                break;
+            }
+            // Http method related annotations such as @GET, @POST will have itself annotated with
+            // @HttpMethod
+            HttpMethod m = a.annotationType().getAnnotation(HttpMethod.class);
+            if (m != null) {
+                methodName = m.value();
+                break;
+            }
+        }
+
+        boolean jaxrs = false;
+        Class<?> type = mapping.get(methodName);
+        if (type != null) {
+            jaxrs = true;
+            operation.getAttributes().put(type, Boolean.TRUE);
+            Map<Object, Object> attrs = operation.getInterface().getAttributes();
+            List<Operation> operations = (List<Operation>)attrs.get(type);
+            if (operations == null) {
+                operations = new ArrayList<Operation>();
+                attrs.put(type, operations);
+                operations.add(operation);
+            } else {
+                operations.add(operation);
+            }
+        }
+
+        return jaxrs;
+
+    }
+
+    public void visitInterface(JavaInterface contract) throws InvalidInterfaceException {
+
+        boolean hasJAXRSAnnotarions = false;
+
+        for (Operation op : contract.getOperations()) {
+            final JavaOperation operation = (JavaOperation)op;
+            if (introspectHTTPMethod(operation)) {
+                hasJAXRSAnnotarions = true;
+            }
+        }
+
+        // Always set JAX-RS annotated interfaces as remotables
+        if (hasJAXRSAnnotarions) {
+            contract.setRemotable(true);
+        }
+    }
+}