1 files changed, 78 insertions, 0 deletions
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketServiceInvoker.java b/sca-java-2.x/branches/2.0-Beta3/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketServiceInvoker.java
new file mode 100644
index 0000000000..3efb25adea
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+++ b/sca-java-2.x/branches/2.0-Beta3/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketServiceInvoker.java
@@ -0,0 +1,78 @@
+/*
+ * 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.binding.websocket.runtime;
+
+import java.lang.reflect.InvocationTargetException;
+
+import org.apache.tuscany.sca.assembly.EndpointReference;
+import org.apache.tuscany.sca.core.assembly.impl.RuntimeEndpointImpl;
+import org.apache.tuscany.sca.core.assembly.impl.RuntimeEndpointReferenceImpl;
+import org.apache.tuscany.sca.core.invocation.Constants;
+import org.apache.tuscany.sca.core.invocation.impl.MessageImpl;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+
+/**
+ * The service invoker is used to call an operation implementation in a
+ * synchronous or asynchronous way.
+ */
+public class WebsocketServiceInvoker {
+
+    protected Operation operation;
+    protected RuntimeEndpoint endpoint;
+
+    public WebsocketServiceInvoker(Operation operation, RuntimeEndpoint endpoint) {
+        this.operation = operation;
+        this.endpoint = endpoint;
+    }
+
+    public WebsocketBindingMessage invokeSync(WebsocketBindingMessage request) {
+        String jsonParams = request.getPayload();
+        Object[] args = JSONUtil.decodePayloadForOperation(jsonParams, operation);
+        try {
+            Object operationResponse = endpoint.invoke(operation, args);
+            String payload = JSONUtil.encodePayload(operationResponse);
+            WebsocketBindingMessage response = new WebsocketBindingMessage(request.getOperation(), payload);
+            return response;
+        } catch (InvocationTargetException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public void invokeAsync(WebsocketBindingMessage request, TuscanyWebsocket channel) {
+        String jsonParams = request.getPayload();
+        Object[] args = JSONUtil.decodePayloadForOperation(jsonParams, operation);
+        Message msg = new MessageImpl();
+        msg.getHeaders().put(Constants.MESSAGE_ID, channel.getId());
+        msg.setBody(args);
+        EndpointReference re = new RuntimeEndpointReferenceImpl();
+        RuntimeEndpointImpl callbackEndpoint = new RuntimeEndpointImpl();
+        callbackEndpoint.setURI(request.getOperation());
+        re.setCallbackEndpoint(callbackEndpoint);
+        msg.setFrom(re);
+        endpoint.invoke(operation, msg);
+    }
+
+    public boolean isNonBlocking() {
+        return operation.isNonBlocking();
+    }
+
+}