From a72ce5378a3c0b8c24e19c983561045f5aaa2247 Mon Sep 17 00:00:00 2001
From: antelder <antelder@13f79535-47bb-0310-9956-ffa450edef68>
Date: Thu, 31 Jul 2008 11:00:10 +0000
Subject: Start of an annottaion processor for handling SCA annotations on
 webapp resources

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@681339 13f79535-47bb-0310-9956-ffa450edef68
---
 .../runtime/tomcat/TuscanyAnnotationProcessor.java | 72 ++++++++++++++++++++++
 .../tuscany/sca/runtime/tomcat/TuscanyHost.java    |  2 +
 2 files changed, 74 insertions(+)
 create mode 100644 java/sca/modules/runtime-tomcat/src/main/java/org/apache/tuscany/sca/runtime/tomcat/TuscanyAnnotationProcessor.java

diff --git a/java/sca/modules/runtime-tomcat/src/main/java/org/apache/tuscany/sca/runtime/tomcat/TuscanyAnnotationProcessor.java b/java/sca/modules/runtime-tomcat/src/main/java/org/apache/tuscany/sca/runtime/tomcat/TuscanyAnnotationProcessor.java
new file mode 100644
index 0000000000..2b14fcef31
--- /dev/null
+++ b/java/sca/modules/runtime-tomcat/src/main/java/org/apache/tuscany/sca/runtime/tomcat/TuscanyAnnotationProcessor.java
@@ -0,0 +1,72 @@
+/*
+ * 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.runtime.tomcat;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+import javax.naming.NamingException;
+
+import org.apache.AnnotationProcessor;
+import org.osoa.sca.annotations.Reference;
+
+/**
+ * A Tuscany specific Tomcat annotation processor for processing SCA annotations
+ */
+public class TuscanyAnnotationProcessor implements AnnotationProcessor {
+
+    public void postConstruct(Object instance) throws IllegalAccessException, InvocationTargetException {
+    }
+
+    public void preDestroy(Object instance) throws IllegalAccessException, InvocationTargetException {
+    }
+
+    public void processAnnotations(Object instance) throws IllegalAccessException, InvocationTargetException, NamingException {
+        
+        // Initialize fields annotations
+        Field[] fields = instance.getClass().getDeclaredFields();
+        for (int i = 0; i < fields.length; i++) {
+            if (fields[i].isAnnotationPresent(Reference.class)) {
+                Reference annotation = fields[i].getAnnotation(Reference.class);
+                injectFieldResource(instance, fields[i], annotation);
+            }
+        }
+        
+        // Initialize methods annotations
+        Method[] methods = instance.getClass().getDeclaredMethods();
+        for (int i = 0; i < methods.length; i++) {
+            if (methods[i].isAnnotationPresent(Reference.class)) {
+                Reference annotation = methods[i].getAnnotation(Reference.class);
+                injectMethodResource(instance, methods[i], annotation);
+            }
+        }
+
+    }
+
+    protected void injectFieldResource(Object instance, Field field, Reference annotation) {
+        System.out.println("TuscanyAnnotationProcessor.injectFieldResource" + annotation);
+    }
+
+    protected void injectMethodResource(Object instance, Method method, Reference annotation) {
+        System.out.println("TuscanyAnnotationProcessor.injectMethodResource" + annotation);
+    }
+
+}
diff --git a/java/sca/modules/runtime-tomcat/src/main/java/org/apache/tuscany/sca/runtime/tomcat/TuscanyHost.java b/java/sca/modules/runtime-tomcat/src/main/java/org/apache/tuscany/sca/runtime/tomcat/TuscanyHost.java
index 190fe137d9..8a669a9cc2 100644
--- a/java/sca/modules/runtime-tomcat/src/main/java/org/apache/tuscany/sca/runtime/tomcat/TuscanyHost.java
+++ b/java/sca/modules/runtime-tomcat/src/main/java/org/apache/tuscany/sca/runtime/tomcat/TuscanyHost.java
@@ -148,6 +148,8 @@ public class TuscanyHost extends StandardHost {
         filterMap.addURLPattern("/*");
         scaApp.addFilterMap(filterMap);
 
+        scaApp.setAnnotationProcessor(new TuscanyAnnotationProcessor());
+        
         scaApps.add(scaApp);
     }
 
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