1 files changed, 134 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0-Beta2-RC2/samples/extending-tuscany/implementation-sample/src/main/java/sample/impl/SampleWSDLInvoker.java b/sca-java-2.x/tags/2.0-Beta2-RC2/samples/extending-tuscany/implementation-sample/src/main/java/sample/impl/SampleWSDLInvoker.java
new file mode 100644
index 0000000000..5c76cfd90a
--- /dev/null
+++ b/sca-java-2.x/tags/2.0-Beta2-RC2/samples/extending-tuscany/implementation-sample/src/main/java/sample/impl/SampleWSDLInvoker.java
@@ -0,0 +1,134 @@
+/*
+ * 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 sample.impl;
+
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.lang.reflect.Method;
+
+import org.apache.tuscany.sca.core.invocation.AsyncResponseInvoker;
+import org.apache.tuscany.sca.core.invocation.InterceptorAsyncImpl;
+import org.apache.tuscany.sca.interfacedef.wsdl.WSDLOperation;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+import org.oasisopen.sca.ServiceRuntimeException;
+import org.w3c.dom.Element;
+
+/**
+ * Invoker for Sample components that implement a WSDL interface using a generic
+ * call method.
+ * 
+ * @version $Rev$ $Date$
+ */
+class SampleWSDLInvoker extends InterceptorAsyncImpl {
+    final String name;
+    final Object instance;
+    final Method method;
+
+    SampleWSDLInvoker(final WSDLOperation op, final Class<?> clazz, final Object instance) throws SecurityException, NoSuchMethodException {
+        this.name = op.getName();
+        this.instance = instance;
+        this.method = clazz.getMethod("call", String.class, Element.class);
+    }
+
+    public Invoker getNext() {
+        // Can't get next for an implementation invoker
+        return null;
+    }
+
+    public Message invoke(final Message msg) {
+        return processRequest(msg);
+    }
+    
+    public void invokeAsyncRequest(Message msg) {
+        if (msg.getOperation().getName().equals("upper")){
+        	// Retrieve the async callback information
+        	AsyncResponseInvoker respInvoker = (AsyncResponseInvoker)msg.getHeaders().get("ASYNC_RESPONSE_INVOKER");
+        	if( respInvoker == null ) throw new ServiceRuntimeException("Async Implementation invoked with no response invoker");
+        	
+            Message responseMsg = processRequest(msg);
+            
+            // in this sample programming model we make the async
+            // response from the implementation provider. The 
+            // component implementation itself doesn't get a chance to 
+            // do async responses. 
+        
+            // At this point we could serialize the AsyncResponseInvoker and pick it up again 
+            // later to send the async response
+            
+            try {
+                FileOutputStream fos = new FileOutputStream("ari.dat");
+                ObjectOutputStream oos = new ObjectOutputStream(fos);
+                oos.writeObject(respInvoker);
+                oos.close();
+                respInvoker.invokeAsyncResponse(responseMsg);
+            } catch (Exception ex) {
+                ex.printStackTrace();
+            }
+
+        } else if (msg.getOperation().getName().equals("upper2")){
+            Message responseMsg = processRequest(msg);
+            
+            // read the async response invoker back in and call it
+            FileInputStream fis = null;
+            ObjectInputStream ois = null;
+            try {
+                fis = new FileInputStream("ari.dat");
+                ois = new ObjectInputStream(fis);
+                AsyncResponseInvoker respInvoker = (AsyncResponseInvoker) ois.readObject();
+                ois.close();
+                respInvoker.invokeAsyncResponse(responseMsg);
+            } catch (Exception ex) {
+                ex.printStackTrace();
+            }
+        } else {
+            // Retrieve the async callback information
+            AsyncResponseInvoker respInvoker = (AsyncResponseInvoker)msg.getHeaders().get("ASYNC_RESPONSE_INVOKER");
+            if( respInvoker == null ) throw new ServiceRuntimeException("Async Implementation invoked with no response invoker");
+            
+            Message responseMsg = processRequest(msg);
+            
+            if (responseMsg.getBody() != null){
+                respInvoker.invokeAsyncResponse(responseMsg);
+            }
+        }
+        
+    } // end method invokeAsyncRequest
+    
+    public Message processRequest(Message msg) {
+        try {
+            //AsyncHeader asyncHeader = (String) message.getHeaders().get("ASYNC-HEADER");
+            // Invoke the generic call method
+            Object response = method.invoke(instance, name, ((Object[])msg.getBody())[0]);
+            msg.setBody(response);
+        } catch(Exception e) {
+            e.printStackTrace();
+            msg.setFaultBody(e.getCause());
+        }
+        return msg;
+    }
+    
+    public Message processResponse(Message msg) {
+        return msg;
+    }
+}