From 5963a2d3d6860fe57afc138f095bf2d2eb5a7b80 Mon Sep 17 00:00:00 2001
From: lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68>
Date: Mon, 7 Oct 2013 22:23:21 +0000
Subject: Official Tuscany 2.0.1 Release

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1530096 13f79535-47bb-0310-9956-ffa450edef68
---
 .../learning-more/binding-comet/chat-webapp/README |  99 +++++++++++++++++++
 .../binding-comet/chat-webapp/pom.xml              |  81 +++++++++++++++
 .../tuscany/sca/sample/comet/ChatService.java      |  36 +++++++
 .../tuscany/sca/sample/comet/ChatServiceImpl.java  |  56 +++++++++++
 .../src/main/webapp/META-INF/MANIFEST.MF           |   2 +
 .../src/main/webapp/WEB-INF/web.composite          |  37 +++++++
 .../chat-webapp/src/main/webapp/WEB-INF/web.xml    |  34 +++++++
 .../chat-webapp/src/main/webapp/index.html         | 109 +++++++++++++++++++++
 8 files changed, 454 insertions(+)
 create mode 100644 sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/README
 create mode 100644 sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/pom.xml
 create mode 100644 sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/src/main/java/org/apache/tuscany/sca/sample/comet/ChatService.java
 create mode 100644 sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/src/main/java/org/apache/tuscany/sca/sample/comet/ChatServiceImpl.java
 create mode 100644 sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/src/main/webapp/META-INF/MANIFEST.MF
 create mode 100644 sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/src/main/webapp/WEB-INF/web.composite
 create mode 100644 sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/src/main/webapp/WEB-INF/web.xml
 create mode 100644 sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/src/main/webapp/index.html

(limited to 'sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp')

diff --git a/sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/README b/sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/README
new file mode 100644
index 0000000000..303c63146a
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/README
@@ -0,0 +1,99 @@
+Tuscany - Learning More - Binding Comet - Chat Webapp
+-----------------------------------------------------------------
+
+This sample demonstrates how Tuscany can expose services via Comet techniques 
+as well as how to interact with them using Tuscany's javascript toolkit. It 
+also demonstrates how to push multiple responses for a single request using 
+SCA callbacks via comet techniques.
+
+This project contains a service (ChatService) that handles chat operations like
+register and postMessage. Once a client is registered it will receive messages
+that are sent to the chat room.
+
+By adding <tuscany:binding.comet/> to a service definition, the Tuscany runtime 
+will handle the communication between the browser client and the service 
+implementation using Comet techniques. This enables bidirectional communication
+over HTTP, therefore enabling server push. For more information, check 
+http://en.wikipedia.org/wiki/Comet_(programming).
+
+The comet binding is using the Atmosphere Framework under the hood to acomodate
+as many deployment envorinments as possible. Basically, it checks if the 
+application server supports Servlet 3.0 falling back to a number of native
+comet solutions provided by vendors (Jetty, Tomcat, WebLogic, GlassFish and
+others). If none is available, Atmosphere will fallback to blocking IO.
+
+In order to enable callbacks to push multiple responses, you need to declare the 
+CometCallback in the service definition as follows:
+		<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>
+    
+The callback object has methods that facilitate sending messages back to the 
+calling client. It can be injected in the service implementation using the @Callback
+annotation. However, the service implementation for this sample has the COMPOSITE
+scope so the callback reference has to be obtained from the ComponentContext.
+
+One requirement that service methods have to meet to enable multiple response 
+support is that they have to be annotated with @OneWay to enable non-blocking 
+support. Without it, methods are treated synchronously sending a single response
+which is the object returned by the method call.  
+
+Invoking comet services can be done using Tuscany's javascript API which simulates
+SCA in the browser. It uses the Atmosphere jQuery plugin under the hood. In order 
+to use it, the following script has to be included in the client page: 
+    <script type="text/javascript" 
+            src="tuscany-comet-js/org.apache.tuscany.sca.CometComponentContext.js">
+    </script>
+	
+The javascript toolkit permits choosing between two comet techniques: HTTP streaming 
+and long polling. More detailed information about them can be found on the previously
+mentioned wikipedia page.
+
+First, a connect operation has to be issued in order to initiate communication
+with the server side using the technique of your choice. This is done using the
+connection method as follows:
+	SCA.TuscanyComet.connect('streaming'); // for HTTP streaming
+	SCA.TuscanyComet.connect('long-polling'); // for long polling
+	SCA.TuscanyComet.connect(); // starts with HTTP streaming and falls back to long polling if necessary
+		
+The Tuscany Comet toolkit will inject proxies for all services defined in the composite 
+that are using binding.comet. All invocation and connection management is handled
+under the hood so in order to invoke a comet service, the following should be called:
+	SCA.CometComponentContext.<service name>.<operation name>(<parameters>, callback);
+
+The callback parameter is the function that will handle responses received for a 
+certain service operation. It has a single argument which is the response:
+    function callback(response) {
+        // handle response
+    };
+	
+Note that the data exchange is automatically handled by the binding, so parameters 
+will be mapped to the data types defined in the method definition. Also, the response 
+will have the same data type as the server side object used to wrap the response. 
+Objects are passed over the wire in JSON format.
+
+Another detail worth mentioning is that the binding will use a single HTTP 
+connection to handle communication between a browser client and all services 
+defined using binding.comet in the same composite. Requests and responses will get
+multiplexed via the same channel and get routed to the appropriate service 
+implementation, respectively javascript function. This is done in order to avoid
+the 2 HTTP connection limit imposed by browsers. For more info, check
+http://www.openajax.org/runtime/wiki/The_Two_HTTP_Connection_Limit_Issue.
+
+In order to run the sample, you can execute "mvn clean install t7:run" which will 
+start a Tomcat 7 instance automatically or use "mvn package" and deploy the resulting 
+war to the application server of your choice.
+
+Next, point your browser at 
+    http://localhost:8080/sample-binding-comet-chat-webapp/
+
+You can now chat using multiple tabs or browsers. You can see the persistent HTTP 
+streaming connection or long polling subsequent connections using the developer tools 
+provided by your browser.
+
+The comet binding is an experimental binding so community feedback is much 
+appreciated. Feel free to send comments or suggestions on the Apache Tuscany 
+dev mailing list (dev@tuscany.apache.org).
\ No newline at end of file
diff --git a/sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/pom.xml b/sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/pom.xml
new file mode 100644
index 0000000000..d83b1150fc
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/pom.xml
@@ -0,0 +1,81 @@
+<?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.samples</groupId>
+		<artifactId>tuscany-samples-binding-comet</artifactId>
+		<version>2.0.1</version>
+		<relativePath>../pom.xml</relativePath>
+	</parent>
+
+	<artifactId>sample-binding-comet-chat-webapp</artifactId>
+	<packaging>war</packaging>
+	<version>2.0.1</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>2.0.1</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>2.0.1</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>
+	
+	<build>
+		<plugins>
+        	<plugin>
+                <groupId>com.googlecode.t7mp</groupId>
+                <artifactId>maven-t7-plugin</artifactId>
+                <version>0.9.6</version>
+                <configuration>
+                	<webapps>
+                		<webappArtifact>
+                        	<groupId>org.apache.tuscany.sca.samples</groupId>
+                        	<artifactId>sample-binding-comet-chat-webapp</artifactId>
+                        	<version>2.0.1</version>
+                		</webappArtifact>
+			        </webapps>
+				</configuration>
+        	</plugin>
+		</plugins>
+	</build>
+</project>
+
diff --git a/sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/src/main/java/org/apache/tuscany/sca/sample/comet/ChatService.java b/sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/src/main/java/org/apache/tuscany/sca/sample/comet/ChatService.java
new file mode 100644
index 0000000000..acb224715a
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/src/main/java/org/apache/tuscany/sca/sample/comet/ChatService.java
@@ -0,0 +1,36 @@
+/*
+ * 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.sample.comet;
+
+import org.apache.tuscany.sca.binding.comet.runtime.callback.CometCallback;
+import org.oasisopen.sca.annotation.Callback;
+import org.oasisopen.sca.annotation.OneWay;
+import org.oasisopen.sca.annotation.Remotable;
+
+@Callback(CometCallback.class)
+@Remotable
+public interface ChatService {
+
+	@OneWay
+	void register();
+
+	@OneWay
+	void postMessage(String user, String message);
+
+}
diff --git a/sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/src/main/java/org/apache/tuscany/sca/sample/comet/ChatServiceImpl.java b/sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/src/main/java/org/apache/tuscany/sca/sample/comet/ChatServiceImpl.java
new file mode 100644
index 0000000000..c4f3241c5b
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/src/main/java/org/apache/tuscany/sca/sample/comet/ChatServiceImpl.java
@@ -0,0 +1,56 @@
+/*
+ * 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.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() {
+		// 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().<CometCallback> getCallback());
+	}
+}
diff --git a/sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/src/main/webapp/META-INF/MANIFEST.MF b/sca-java-2.x/tags/2.0.1/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/tags/2.0.1/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/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/src/main/webapp/WEB-INF/web.composite b/sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/src/main/webapp/WEB-INF/web.composite
new file mode 100644
index 0000000000..c535a38116
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/src/main/webapp/WEB-INF/web.composite
@@ -0,0 +1,37 @@
+<?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/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/src/main/webapp/WEB-INF/web.xml b/sca-java-2.x/tags/2.0.1/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/tags/2.0.1/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/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/src/main/webapp/index.html b/sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/src/main/webapp/index.html
new file mode 100644
index 0000000000..1aa79ed0b6
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1/samples/learning-more/binding-comet/chat-webapp/src/main/webapp/index.html
@@ -0,0 +1,109 @@
+<!--
+ * 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 src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.1/jquery.min.js" type="text/javascript"></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();
+			$("#username").focus();
+			
+			// Tuscany Comet specific API
+			SCA.TuscanyComet.connect();
+			
+			$("#register").click(function() {
+				register(messageCallback);
+			});
+			
+			$("#username").keyup(function(e) {
+				if(e.keyCode == 13) {
+					register(messageCallback);
+				}
+			});
+			
+			function register(callback) {
+				SCA.CometComponentContext.ChatService.register(callback);
+				user = $("#username").val();
+				$("#login").hide();
+				$("#chat").show();
+				$("#message").focus();
+			}
+			
+			$("#send").click(function() {
+				postMessage(user, $("#message").val(), postCallback);
+			});
+			
+			$("#message").keyup(function(e) {
+				if(e.keyCode == 13) {
+					postMessage(user, $("#message").val(), postCallback);
+				}
+			});
+			
+			function postMessage(user, message, callback) {
+				SCA.CometComponentContext.ChatService.postMessage(user, message, callback);
+				$("#message").val("");
+				$("#message").focus();
+			}
+			
+		});
+
+		// 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>
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