svn commit: r1043436 - /tuscany/sca-java-2.x/trunk/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncResponseInvoker.java

[sl...@apache.org]

Author: slaws
Date: Wed Dec  8 14:35:39 2010
New Revision: 1043436

URL: http://svn.apache.org/viewvc?rev=1043436&view=rev
Log:
TUSCANY-3801 - Thinking about how to wrap the difference between native and non-native async at the service end. Not actually used yet. 

Added:
    tuscany/sca-java-2.x/trunk/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncResponseInvoker.java

Added: tuscany/sca-java-2.x/trunk/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncResponseInvoker.java
URL: http://svn.apache.org/viewvc/tuscany/sca-java-2.x/trunk/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncResponseInvoker.java?rev=1043436&view=auto
==============================================================================
--- tuscany/sca-java-2.x/trunk/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncResponseInvoker.java (added)
+++ tuscany/sca-java-2.x/trunk/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/AsyncResponseInvoker.java Wed Dec  8 14:35:39 2010
@@ -0,0 +1,70 @@
+/*
+ * 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.core.invocation;
+
+import org.apache.tuscany.sca.invocation.InvokerAsyncResponse;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.provider.EndpointAsyncProvider;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
+
+/**
+ * A class that wraps the mechanics for sending async responses
+ * and hides the decision about whether the response will be processed
+ * natively or non-natively
+ */
+public class AsyncResponseInvoker implements InvokerAsyncResponse {
+    
+    RuntimeEndpoint requestEndpoint;
+    RuntimeEndpointReference responseEndpointReference;
+    
+    public AsyncResponseInvoker(Message requestMessage){
+        requestEndpoint = (RuntimeEndpoint)requestMessage.getTo();
+        responseEndpointReference = (RuntimeEndpointReference)requestMessage.getFrom();
+    }
+	
+    /** 
+     * If you have a Tuscany message you can call this
+     */
+    public void invokeAsyncResponse(Message responseMessage) {
+        if ((requestEndpoint.getBindingProvider() instanceof EndpointAsyncProvider) &&
+             (((EndpointAsyncProvider)requestEndpoint.getBindingProvider()).supportsNativeAsync())){
+            // process the response as a native async response
+            requestEndpoint.invokeAsyncResponse(responseMessage);
+        } else {
+            // process the response as a non-native async response
+            responseEndpointReference.invoke(responseMessage);
+        }
+    }
+    
+    /**
+     * If you have Java beans you can call this and we'll create
+     * a Tuscany message
+     * 
+     * @param args the response data
+     */
+    public void invokeAsyncResponse(Object args) {
+        // TODO - how to get at the code that translates from args to msg?
+        
+        // turn args into a message
+        Message responseMessage = null;
+        invokeAsyncResponse(responseMessage);
+    }
+}