1 files changed, 58 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/samples/learning-more/binding-websocket/chat-webapp/src/main/java/sample/ChatServiceImpl.java b/sca-java-2.x/tags/2.0.1-RC1/samples/learning-more/binding-websocket/chat-webapp/src/main/java/sample/ChatServiceImpl.java
new file mode 100644
index 0000000000..6fd4455ba9
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/samples/learning-more/binding-websocket/chat-webapp/src/main/java/sample/ChatServiceImpl.java
@@ -0,0 +1,58 @@
+/*
+ * 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;
+
+import java.util.ArrayList;
+import java.util.concurrent.CopyOnWriteArrayList;
+
+import org.apache.tuscany.sca.binding.websocket.runtime.WebsocketBindingCallback;
+import org.apache.tuscany.sca.binding.websocket.runtime.WebsocketStatus;
+import org.oasisopen.sca.ComponentContext;
+import org.oasisopen.sca.annotation.Context;
+import org.oasisopen.sca.annotation.Scope;
+import org.oasisopen.sca.annotation.Service;
+
+@Service(ChatService.class)
+@Scope("COMPOSITE")
+public class ChatServiceImpl implements ChatService {
+
+    @Context
+    protected ComponentContext context;
+
+    private CopyOnWriteArrayList<WebsocketBindingCallback> clients = new CopyOnWriteArrayList<WebsocketBindingCallback>();
+
+    @Override
+    public void postMessage(String user, String message) {
+        for (WebsocketBindingCallback callback : new ArrayList<WebsocketBindingCallback>(clients)) {
+            WebsocketStatus status = callback.sendMessage(user + ": " + message);
+            if (status == WebsocketStatus.CLOSED) {
+                clients.remove(callback);
+            }
+        }
+    }
+
+    @Override
+    public void register() {
+        // saving the callback object during register() method so it will push
+        // data back to the client
+        // using the callback method defined for the register operation in the
+        // js when used
+        clients.add(context.getRequestContext().<WebsocketBindingCallback> getCallback());
+    }
+}