Add chat sample for binding.comet

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1127726 13f79535-47bb-0310-9956-ffa450edef68

7 files changed, 267 insertions, 0 deletions

diff --git a/sca-java-2.x/contrib/samples/learning-more/binding-comet/chat-webapp/pom.xml b/sca-java-2.x/contrib/samples/learning-more/binding-comet/chat-webapp/pom.xml
new file mode 100644
index 0000000000..2009ffca27
--- /dev/null
+++ b/sca-java-2.x/contrib/samples/learning-more/binding-comet/chat-webapp/pom.xml
@@ -0,0 +1,64 @@
+<?xml version="1.0" encoding="UTF-8"?>

+<!--

+ * 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.

+-->

+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

+	<modelVersion>4.0.0</modelVersion>

+	<parent>

+		<groupId>org.apache.tuscany.sca</groupId>

+		<artifactId>tuscany-samples</artifactId>

+		<version>2.0-SNAPSHOT</version>

+		<relativePath>../../../pom.xml</relativePath>

+	</parent>

+

+	<groupId>org.apache.tuscany.sca</groupId>

+	<artifactId>sample-binding-comet-chat-webapp</artifactId>

+	<packaging>war</packaging>

+	<version>1.0</version>

+	<name>Apache Tuscany SCA Sample binding.comet Chat Webapp</name>

+

+	<dependencies>

+		<dependency>

+			<groupId>org.apache.tuscany.sca</groupId>

+			<artifactId>tuscany-binding-comet-runtime</artifactId>

+			<version>2.0-SNAPSHOT</version>

+		</dependency>

+		<dependency>

+			<groupId>javax</groupId>

+			<artifactId>javaee-web-api</artifactId>

+			<version>6.0</version>

+			<scope>provided</scope>

+		</dependency>

+		<dependency>

+			<groupId>org.apache.tuscany.sca</groupId>

+			<artifactId>tuscany-base-runtime-pom</artifactId>

+			<version>2.0-SNAPSHOT</version>

+			<type>pom</type>

+			<scope>compile</scope>

+		</dependency>

+		<dependency>

+			<groupId>com.google.guava</groupId>

+			<artifactId>guava</artifactId>

+			<version>r09</version>

+			<type>jar</type>

+			<scope>compile</scope>

+		</dependency>

+	</dependencies>

+	

+</project>

+

diff --git a/sca-java-2.x/contrib/samples/learning-more/binding-comet/chat-webapp/src/main/java/org/apache/tuscany/sca/sample/comet/ChatService.java b/sca-java-2.x/contrib/samples/learning-more/binding-comet/chat-webapp/src/main/java/org/apache/tuscany/sca/sample/comet/ChatService.java
new file mode 100644
index 0000000000..4c35e1c5e3
--- /dev/null
+++ b/sca-java-2.x/contrib/samples/learning-more/binding-comet/chat-webapp/src/main/java/org/apache/tuscany/sca/sample/comet/ChatService.java
@@ -0,0 +1,15 @@
+package org.apache.tuscany.sca.sample.comet;
+
+import org.apache.tuscany.sca.binding.comet.runtime.callback.CometCallback;
+import org.oasisopen.sca.annotation.Callback;
+import org.oasisopen.sca.annotation.Remotable;
+
+@Callback(CometCallback.class)
+@Remotable
+public interface ChatService {
+
+	void register();
+	
+	void postMessage(String user, String message);
+
+}
diff --git a/sca-java-2.x/contrib/samples/learning-more/binding-comet/chat-webapp/src/main/java/org/apache/tuscany/sca/sample/comet/ChatServiceImpl.java b/sca-java-2.x/contrib/samples/learning-more/binding-comet/chat-webapp/src/main/java/org/apache/tuscany/sca/sample/comet/ChatServiceImpl.java
new file mode 100644
index 0000000000..b58de00035
--- /dev/null
+++ b/sca-java-2.x/contrib/samples/learning-more/binding-comet/chat-webapp/src/main/java/org/apache/tuscany/sca/sample/comet/ChatServiceImpl.java
@@ -0,0 +1,36 @@
+package org.apache.tuscany.sca.sample.comet;
+
+import java.util.ArrayList;
+import java.util.concurrent.CopyOnWriteArrayList;
+
+import org.apache.tuscany.sca.binding.comet.runtime.callback.CometCallback;
+import org.apache.tuscany.sca.binding.comet.runtime.callback.Status;
+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<CometCallback> clients = new CopyOnWriteArrayList<CometCallback>();
+
+	@Override
+	public void postMessage(String user, String message) {
+		for (CometCallback callback : new ArrayList<CometCallback>(clients)) {
+			Status status = callback.sendMessage(user + ": " + message);
+			if (status == Status.CLIENT_DISCONNECTED) {
+				clients.remove(callback);
+			}
+		}
+	}
+
+	@Override
+	public void register() {
+		clients.add(context.getRequestContext().<CometCallback> getCallback());
+	}
+}
diff --git a/sca-java-2.x/contrib/samples/learning-more/binding-comet/chat-webapp/src/main/webapp/META-INF/MANIFEST.MF b/sca-java-2.x/contrib/samples/learning-more/binding-comet/chat-webapp/src/main/webapp/META-INF/MANIFEST.MF
new file mode 100644
index 0000000000..58630c02ef
--- /dev/null
+++ b/sca-java-2.x/contrib/samples/learning-more/binding-comet/chat-webapp/src/main/webapp/META-INF/MANIFEST.MF
@@ -0,0 +1,2 @@
+Manifest-Version: 1.0

+

diff --git a/sca-java-2.x/contrib/samples/learning-more/binding-comet/chat-webapp/src/main/webapp/WEB-INF/web.composite b/sca-java-2.x/contrib/samples/learning-more/binding-comet/chat-webapp/src/main/webapp/WEB-INF/web.composite
new file mode 100644
index 0000000000..d594c55942
--- /dev/null
+++ b/sca-java-2.x/contrib/samples/learning-more/binding-comet/chat-webapp/src/main/webapp/WEB-INF/web.composite
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- * 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. -->
+<composite xmlns="http://docs.oasis-open.org/ns/opencsa/sca/200912"
+	xmlns:tuscany="http://tuscany.apache.org/xmlns/sca/1.1"
+	targetNamespace="http://samples" name="Chat">
+
+	<component name="ChatComponent">
+		<implementation.java
+			class="org.apache.tuscany.sca.sample.comet.ChatServiceImpl" />
+		<service name="ChatService">
+			<interface.java interface="org.apache.tuscany.sca.sample.comet.ChatService"
+				callbackInterface="org.apache.tuscany.sca.binding.comet.runtime.callback.CometCallback" />
+			<tuscany:binding.comet />
+			<callback>
+				<tuscany:binding.comet />
+			</callback>
+		</service>
+	</component>
+
+</composite>
\ No newline at end of file
diff --git a/sca-java-2.x/contrib/samples/learning-more/binding-comet/chat-webapp/src/main/webapp/WEB-INF/web.xml b/sca-java-2.x/contrib/samples/learning-more/binding-comet/chat-webapp/src/main/webapp/WEB-INF/web.xml
new file mode 100644
index 0000000000..25b06c457a
--- /dev/null
+++ b/sca-java-2.x/contrib/samples/learning-more/binding-comet/chat-webapp/src/main/webapp/WEB-INF/web.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * 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.
+-->
+<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:j2ee="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_3.0.xsd" version="3.0">
+  <display-name>Apache Tuscany Stock Comet Sample</display-name>
+  <filter>
+    <filter-name>tuscany</filter-name>
+    <filter-class>org.apache.tuscany.sca.host.webapp.TuscanyServletFilter</filter-class>
+    <async-supported>true</async-supported>
+  </filter>
+  <filter-mapping>
+    <filter-name>tuscany</filter-name>
+    <url-pattern>/*</url-pattern>
+  </filter-mapping>
+  <welcome-file-list>
+    <welcome-file>index.html</welcome-file>
+  </welcome-file-list>
+</web-app>
\ No newline at end of file
diff --git a/sca-java-2.x/contrib/samples/learning-more/binding-comet/chat-webapp/src/main/webapp/index.html b/sca-java-2.x/contrib/samples/learning-more/binding-comet/chat-webapp/src/main/webapp/index.html
new file mode 100644
index 0000000000..059388b216
--- /dev/null
+++ b/sca-java-2.x/contrib/samples/learning-more/binding-comet/chat-webapp/src/main/webapp/index.html
@@ -0,0 +1,86 @@
+<!--
+ * 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.
+-->
+<html>
+	<head>
+		<title>Apache Tuscany Comet Sample</title>
+		<!-- Tuscany Comet Javascript Toolkit is dependent on jQuery -->
+		<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
+		<script type="text/javascript" src="tuscany-comet-js/org.apache.tuscany.sca.CometComponentContext.js"></script>
+		<script type="text/javascript">
+		var user = "";
+		
+		$(document).ready(function()
+		{
+			$("#chat").hide();
+			
+			// Tuscany Comet specific API
+			SCA.TuscanyComet.connect();
+			
+			$("#register").click(function() {
+				SCA.CometComponentContext.ChatService.register(messageCallback);
+				user = $("#username").val();
+				$("#login").hide();
+				$("#chat").show();
+			});
+			
+			$("#send").click(function() {
+				SCA.CometComponentContext.ChatService.postMessage(user, $("#message").val(), postCallback);
+				$("#message").val("");
+			});
+			
+		});
+
+		// this method is invoked on new messages because the CometCallback object is saved
+		// during the register call so uses it's callback to push data back
+		function messageCallback(response) {
+			var textarea = document.getElementById('textarea'); 
+			textarea.value += response + "\n";
+			textarea.scrollTop = textarea.scrollHeight; 
+		}
+		
+		function postCallback(response) {
+		}
+
+		</script>
+	</head>
+	<body>
+		<h2>Apache Tuscany Comet Sample</h2>
+		<h3>Chat</h3>
+		<p/>
+		<div id="login">
+		<table>
+			<tr>
+				<td>Nickname</td>
+				<td><input type="text" id='username'/></td>
+				<td><input type="button" id='register' value='Login'/></td>
+			</tr>
+		</table>
+		</div>
+		<div id="chat">
+		<h3>Server notifications</h3>
+		<textarea id="textarea" rows="15" cols="30" readonly></textarea>
+		<table>
+			<tr>
+				<td><input type="text" id='message'/></td>
+				<td><input type="button" id='send' value='Send'/></td>
+			</tr>
+		</table>
+		</div>
+	</body>
+</html>