Allow Spring WebApplicationContext to be used by Tuscany

Bring up a sample web application which demonstrates the integration between Spring and Tuscany

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@980218 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 56 insertions, 0 deletions

diff --git a/sca-java-2.x/trunk/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/invocation/SpringApplicationContextHelper.java b/sca-java-2.x/trunk/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/invocation/SpringApplicationContextHelper.java
new file mode 100644
index 0000000000..f1a1d7e1e7
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/invocation/SpringApplicationContextHelper.java
@@ -0,0 +1,56 @@
+/*
+ * 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.spring.invocation;
+
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+
+/**
+ * A utility to receive the parent Spring application context 
+ */
+public class SpringApplicationContextHelper {
+    private Object parentApplicationContext;
+
+    public SpringApplicationContextHelper(ExtensionPointRegistry registry) {
+    }
+
+    public static SpringApplicationContextHelper getInstance(ExtensionPointRegistry registry) {
+        UtilityExtensionPoint utilities = registry.getExtensionPoint(UtilityExtensionPoint.class);
+        return utilities.getUtility(SpringApplicationContextHelper.class);
+    }
+
+    /**
+     * Get the parent Spring application context for the hosting environment. This will be used as the parent 
+     * application context for implementation.spring components
+     * @return
+     */
+    public Object getParentApplicationContext() {
+        return parentApplicationContext;
+    }
+
+    /**
+     * Set the root Spring application context. This is particually useful for Spring web integration where Spring
+     * creates WebApplicationContext and keeps it in the ServletContext
+     * @param parentApplicationContext
+     */
+    public void setParentApplicationContext(Object parentApplicationContext) {
+        this.parentApplicationContext = parentApplicationContext;
+    }
+}