TUSCANY-3517: Commit initial async servlet sample to contrib area

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@955957 13f79535-47bb-0310-9956-ffa450edef68

11 files changed, 460 insertions, 0 deletions

diff --git a/sca-java-2.x/contrib/samples/async-servlet-sca/.springBeans b/sca-java-2.x/contrib/samples/async-servlet-sca/.springBeans
new file mode 100644
index 0000000000..4dff647636
--- /dev/null
+++ b/sca-java-2.x/contrib/samples/async-servlet-sca/.springBeans
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beansProjectDescription>
+	<version>1</version>
+	<pluginVersion><![CDATA[2.3.2.201003220227-RELEASE]]></pluginVersion>
+	<configSuffixes>
+		<configSuffix><![CDATA[xml]]></configSuffix>
+	</configSuffixes>
+	<enableImports><![CDATA[false]]></enableImports>
+	<configs>
+	</configs>
+	<configSets>
+	</configSets>
+</beansProjectDescription>
diff --git a/sca-java-2.x/contrib/samples/async-servlet-sca/README b/sca-java-2.x/contrib/samples/async-servlet-sca/README
new file mode 100644
index 0000000000..2e9a1203e0
--- /dev/null
+++ b/sca-java-2.x/contrib/samples/async-servlet-sca/README
@@ -0,0 +1,7 @@
+The README in the <distribution-unpack-dir>/samples directory provides 
+general instructions about building and running samples. (where
+distribution-unpack-dir is the directory in which you unpacked the tuscany
+binary distribution archive). Take a look there first (noting at you read it that this sample
+is not a new style sample). 
+
+TODO - finish
\ No newline at end of file
diff --git a/sca-java-2.x/contrib/samples/async-servlet-sca/pom.xml b/sca-java-2.x/contrib/samples/async-servlet-sca/pom.xml
new file mode 100644
index 0000000000..f70044f97b
--- /dev/null
+++ b/sca-java-2.x/contrib/samples/async-servlet-sca/pom.xml
@@ -0,0 +1,94 @@
+<?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>
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>org.apache.tuscany.sca</groupId>
+		<artifactId>tuscany-sca</artifactId>
+		<version>2.0-SNAPSHOT</version>
+		<relativePath>../../pom.xml</relativePath>
+	</parent>
+
+	<artifactId>sample-async-servlet-webapp</artifactId>
+	<packaging>war</packaging>
+	<name>Apache Tuscany SCA Sample Asynchronous Servlet</name>
+
+	<dependencies>
+
+		<dependency>
+			<groupId>org.apache.tuscany.sca.shades</groupId>
+			<artifactId>tuscany-base-nodep</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>junit</groupId>
+			<artifactId>junit</artifactId>
+			<version>4.8.1</version>
+			<scope>test</scope>
+		</dependency>
+
+	</dependencies>
+
+	<build>
+		<finalName>async-servlet</finalName>
+		<plugins>
+			<plugin>
+				<groupId>org.mortbay.jetty</groupId>
+				<artifactId>maven-jetty-plugin</artifactId>
+				<version>6.1.18</version>
+				<configuration>
+					<contextPath>helloworld-servlet</contextPath>
+					<stopKey>foo</stopKey>
+					<stopPort>9999</stopPort>
+				</configuration>
+				<executions>
+					<execution>
+						<id>start-jetty</id>
+						<phase>process-test-classes</phase>
+						<goals>
+							<goal>run</goal>
+						</goals>
+						<configuration>
+							<scanIntervalSeconds>0</scanIntervalSeconds>
+							<daemon>true</daemon>
+							<connectors>
+								<connector implementation="org.mortbay.jetty.nio.SelectChannelConnector">
+									<port>8085</port>
+								</connector>
+							</connectors>
+						</configuration>
+					</execution>
+					<execution>
+						<id>stop-jetty</id>
+						<phase>prepare-package</phase>
+						<goals>
+							<goal>stop</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
+		</plugins>
+	</build>
+</project>
+
diff --git a/sca-java-2.x/contrib/samples/async-servlet-sca/src/main/java/sample/StockService.java b/sca-java-2.x/contrib/samples/async-servlet-sca/src/main/java/sample/StockService.java
new file mode 100644
index 0000000000..84d6d90480
--- /dev/null
+++ b/sca-java-2.x/contrib/samples/async-servlet-sca/src/main/java/sample/StockService.java
@@ -0,0 +1,29 @@
+/*
+ * 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.Observer;
+
+public interface StockService {
+	
+	String getSymbol();
+	Double getValue();
+	void register(Observer observer);
+	
+}
diff --git a/sca-java-2.x/contrib/samples/async-servlet-sca/src/main/java/sample/StockServiceImpl.java b/sca-java-2.x/contrib/samples/async-servlet-sca/src/main/java/sample/StockServiceImpl.java
new file mode 100644
index 0000000000..ebbc7519ff
--- /dev/null
+++ b/sca-java-2.x/contrib/samples/async-servlet-sca/src/main/java/sample/StockServiceImpl.java
@@ -0,0 +1,63 @@
+/*
+ * 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.Date;
+import java.util.Observable;
+import java.util.Observer;
+import java.util.Random;
+
+public class StockServiceImpl extends Observable implements StockService,
+		Runnable {
+
+	public static final int MAX_VALUE = 1000;
+	public static final int MAX_SECONDS = 10;
+	public static final int MILLIS_PER_SECOND = 1000;
+
+	private Random random = new Random(new Date().getTime());
+
+	@Override
+	public String getSymbol() {
+		return "ASF";
+	}
+
+	@Override
+	public Double getValue() {
+		return Math.abs(random.nextDouble() * random.nextInt(MAX_VALUE));
+	}
+
+	@Override
+	public void run() {
+		try {
+			while (true) {
+				setChanged();
+				notifyObservers();
+				Thread.sleep((random.nextInt(MAX_SECONDS - 1) + 1) * MILLIS_PER_SECOND);
+			}
+		} catch (InterruptedException e) {
+			// ignore
+		}
+	}
+
+	@Override
+	public void register(Observer observer) {
+		this.addObserver(observer);
+	}
+
+}
diff --git a/sca-java-2.x/contrib/samples/async-servlet-sca/src/main/java/sample/StockServlet.java b/sca-java-2.x/contrib/samples/async-servlet-sca/src/main/java/sample/StockServlet.java
new file mode 100644
index 0000000000..a705b45f4e
--- /dev/null
+++ b/sca-java-2.x/contrib/samples/async-servlet-sca/src/main/java/sample/StockServlet.java
@@ -0,0 +1,61 @@
+/*
+ * 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.io.IOException;
+import java.io.Writer;
+import java.util.Observable;
+import java.util.Observer;
+
+import javax.servlet.AsyncContext;
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.oasisopen.sca.annotation.Reference;
+
+@WebServlet(asyncSupported = true, urlPatterns = "stock/")
+public class StockServlet implements Observer {
+
+	@Reference
+	private StockService service;
+
+	private AsyncContext asyncContext;
+
+	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
+			throws ServletException, IOException {
+		asyncContext = req.startAsync(req, resp);
+		service.register(this);
+	}
+
+	@Override
+	public void update(Observable observable, Object arg) {
+		try {
+			asyncContext.getResponse().setContentType("text/html");
+			Writer writer = asyncContext.getResponse().getWriter();
+			writer.write("<span>Symbol: " + service.getSymbol() + ", Price "
+					+ service.getValue() + "</span>");
+			writer.flush();
+		} catch (IOException e) {
+			// ignore
+		}
+	}
+
+}
diff --git a/sca-java-2.x/contrib/samples/async-servlet-sca/src/main/webapp/WEB-INF/proposal_web.composite b/sca-java-2.x/contrib/samples/async-servlet-sca/src/main/webapp/WEB-INF/proposal_web.composite
new file mode 100644
index 0000000000..7dc8aabea6
--- /dev/null
+++ b/sca-java-2.x/contrib/samples/async-servlet-sca/src/main/webapp/WEB-INF/proposal_web.composite
@@ -0,0 +1,41 @@
+<?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="Stock">
+
+	<component name="WebPage">
+		<implementation.?/>
+		<callback>
+			<binding.? url="/stock/**" method="callbackJsMethod"/>
+		</callback>
+	</component>
+
+    <component name="Servlet">
+        <implementation.web web-uri=""/>
+        <reference name="service" target="StockComponent"/>
+    </component>
+
+    <component name="StockComponent">
+        <implementation.java class="sample.StockServiceImpl"/>
+    </component>
+
+</composite>
diff --git a/sca-java-2.x/contrib/samples/async-servlet-sca/src/main/webapp/WEB-INF/web.composite b/sca-java-2.x/contrib/samples/async-servlet-sca/src/main/webapp/WEB-INF/web.composite
new file mode 100644
index 0000000000..6a2abb920b
--- /dev/null
+++ b/sca-java-2.x/contrib/samples/async-servlet-sca/src/main/webapp/WEB-INF/web.composite
@@ -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.
+-->
+<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="Stock">
+
+    <component name="Servlet">
+        <implementation.web web-uri=""/>
+        <reference name="service" target="StockComponent"/>
+    </component>
+
+    <component name="StockComponent">
+        <implementation.java class="sample.StockServiceImpl"/>
+    </component>
+
+</composite>
diff --git a/sca-java-2.x/contrib/samples/async-servlet-sca/src/main/webapp/WEB-INF/web.xml b/sca-java-2.x/contrib/samples/async-servlet-sca/src/main/webapp/WEB-INF/web.xml
new file mode 100644
index 0000000000..031f0d110f
--- /dev/null
+++ b/sca-java-2.x/contrib/samples/async-servlet-sca/src/main/webapp/WEB-INF/web.xml
@@ -0,0 +1,44 @@
+<?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 version="2.4"
+         xmlns="http://java.sun.com/xml/ns/j2ee"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" >
+
+    <display-name>Apache Tuscany Asynchronous Servlet Sample</display-name>
+
+	<listener><listener-class>org.apache.tuscany.sca.host.webapp.TuscanyContextListener</listener-class></listener>
+
+    <servlet>
+        <servlet-name>AsyncServlet</servlet-name>
+        <servlet-class>sample.StockServlet</servlet-class>
+    </servlet>
+
+    <servlet-mapping>
+        <servlet-name>AsyncServlet</servlet-name>
+        <url-pattern>/AsyncServlet</url-pattern>
+    </servlet-mapping>
+
+    <welcome-file-list id="WelcomeFileList">
+        <welcome-file>stock.html</welcome-file>
+    </welcome-file-list>
+
+</web-app>
+
diff --git a/sca-java-2.x/contrib/samples/async-servlet-sca/src/main/webapp/proposal_stock.html b/sca-java-2.x/contrib/samples/async-servlet-sca/src/main/webapp/proposal_stock.html
new file mode 100644
index 0000000000..975ed0ed57
--- /dev/null
+++ b/sca-java-2.x/contrib/samples/async-servlet-sca/src/main/webapp/proposal_stock.html
@@ -0,0 +1,40 @@
+<!--
+ * 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 Asynchronous Servlet Sample</title>
+	<script type="text/javascript" src="org.apache.tuscany.callbackListener.js"></script>
+
+	<script language="JavaScript">   
+		function callbackJsMethod(response) {
+			// process received response
+		}
+	</script>
+</head>
+
+<body>
+	<h2>Apache Tuscany Asynchronous Servlet Sample</h2>
+	
+	<h3>Stock Monitor</h3>
+	
+	<input type="button" value="Start monitoring" onclick="">
+</body>
+
+</html>
\ No newline at end of file
diff --git a/sca-java-2.x/contrib/samples/async-servlet-sca/src/main/webapp/stock.html b/sca-java-2.x/contrib/samples/async-servlet-sca/src/main/webapp/stock.html
new file mode 100644
index 0000000000..394bee04b5
--- /dev/null
+++ b/sca-java-2.x/contrib/samples/async-servlet-sca/src/main/webapp/stock.html
@@ -0,0 +1,34 @@
+<!--
+ * 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 Asynchronous Servlet Sample</title>
+</head>
+
+<body>
+
+<h2>Apache Tuscany Asynchronous Servlet Sample</h2>
+
+<h3>Stock Monitor</h3>
+
+<input type="button" value="Start monitoring" onclick="">
+
+</body>
+</html>
\ No newline at end of file