Add a simple test to experiment with Bob's scenario from the ML

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@718913 13f79535-47bb-0310-9956-ffa450edef68

12 files changed, 593 insertions, 0 deletions

diff --git a/sandbox/slaws/scheduler/pom.xml b/sandbox/slaws/scheduler/pom.xml
new file mode 100644
index 0000000000..29b48fe634
--- /dev/null
+++ b/sandbox/slaws/scheduler/pom.xml
@@ -0,0 +1,119 @@
+<?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>1.4-SNAPSHOT</version>
+        <!--relativePath>../../pom.xml</relativePath-->
+    </parent>
+    <artifactId>sample-scheduler</artifactId>
+    <name>Apache Tuscany SCA Scheduler Sample</name>
+
+    <repositories>
+       <repository>
+          <id>apache.incubator</id>
+          <url>http://people.apache.org/repo/m2-incubating-repository</url>
+       </repository>
+    </repositories>
+
+    <dependencies>
+        
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-node-api</artifactId>
+            <version>1.4-SNAPSHOT</version>
+        </dependency>    
+        
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-node-launcher</artifactId>
+            <version>1.4-SNAPSHOT</version>
+        </dependency>    
+        
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-domain-manager</artifactId>
+            <version>1.4-SNAPSHOT</version>
+        </dependency> 
+        
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-implementation-node-runtime</artifactId>
+            <version>1.4-SNAPSHOT</version>
+            <scope>runtime</scope>
+        </dependency> 
+        
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-binding-sca</artifactId>
+            <version>1.4-SNAPSHOT</version>
+            <scope>runtime</scope>
+        </dependency>                                        
+        
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-binding-sca-axis2</artifactId>
+            <version>1.4-SNAPSHOT</version>
+            <scope>runtime</scope>
+        </dependency>         
+        
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-binding-http-runtime</artifactId>
+            <version>1.4-SNAPSHOT</version>
+            <scope>runtime</scope>
+        </dependency>        
+        
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-implementation-resource-runtime</artifactId>
+            <version>1.4-SNAPSHOT</version>
+            <scope>runtime</scope>
+        </dependency> 
+        
+        <dependency>
+            <groupId>org.codehaus.woodstox</groupId>
+            <artifactId>wstx-asl</artifactId>
+            <version>3.2.1</version>
+            <scope>runtime</scope>
+        </dependency> 
+        
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-host-tomcat</artifactId>
+            <version>1.4-SNAPSHOT</version>
+            <scope>test</scope>
+        </dependency>   
+        
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.5</version>
+            <scope>test</scope>
+        </dependency>
+                
+    </dependencies>
+
+    <build>
+       <finalName>${artifactId}</finalName>
+    </build>
+</project>
diff --git a/sandbox/slaws/scheduler/src/main/java/scheduler/Scheduler.java b/sandbox/slaws/scheduler/src/main/java/scheduler/Scheduler.java
new file mode 100644
index 0000000000..d9eeb5aad1
--- /dev/null
+++ b/sandbox/slaws/scheduler/src/main/java/scheduler/Scheduler.java
@@ -0,0 +1,33 @@
+/*
+ * 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 scheduler;
+
+
+import org.osoa.sca.ServiceReference;
+import org.osoa.sca.annotations.Remotable;
+
+import worker.Worker;
+
+@Remotable
+public interface Scheduler {
+
+    void addWorker(String name, ServiceReference reference);
+    void removeWorker(String name);
+
+}
diff --git a/sandbox/slaws/scheduler/src/main/java/scheduler/SchedulerImpl.java b/sandbox/slaws/scheduler/src/main/java/scheduler/SchedulerImpl.java
new file mode 100644
index 0000000000..85544a3ebf
--- /dev/null
+++ b/sandbox/slaws/scheduler/src/main/java/scheduler/SchedulerImpl.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 scheduler;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.osoa.sca.ServiceReference;
+import org.osoa.sca.annotations.Reference;
+import org.osoa.sca.annotations.Scope;
+
+import worker.Worker;
+
+
+/**
+ * An implementation of the Calculator service.
+ */
+@Scope("COMPOSITE")
+public class SchedulerImpl implements Scheduler, Worker {
+
+	@Reference
+    protected List<Worker> workers;
+	
+	public void addWorker(String name, ServiceReference reference) {
+		workers.add((Worker)reference.getService());
+		
+		// could use the name to index the worker in some way
+	}
+	
+	public void removeWorker(String name) {
+		// remove the named worker
+	}
+
+	public String doSomething(String something){
+		
+		String response = "";
+		
+		for (Worker worker : workers){
+			response += worker.doSomething(something);
+		}
+		
+		return response;
+	}
+
+}
diff --git a/sandbox/slaws/scheduler/src/main/java/worker/Worker.java b/sandbox/slaws/scheduler/src/main/java/worker/Worker.java
new file mode 100644
index 0000000000..bedc440ef5
--- /dev/null
+++ b/sandbox/slaws/scheduler/src/main/java/worker/Worker.java
@@ -0,0 +1,31 @@
+/*
+ * 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 worker;
+
+import org.osoa.sca.annotations.Remotable;
+
+/**
+ * The Add service interface
+ */
+@Remotable
+public interface Worker {
+
+    String doSomething(String something);
+
+}
diff --git a/sandbox/slaws/scheduler/src/main/java/worker/WorkerImpl.java b/sandbox/slaws/scheduler/src/main/java/worker/WorkerImpl.java
new file mode 100644
index 0000000000..bd34d0db20
--- /dev/null
+++ b/sandbox/slaws/scheduler/src/main/java/worker/WorkerImpl.java
@@ -0,0 +1,66 @@
+/*
+ * 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 worker;
+
+import org.osoa.sca.CallableReference;
+import org.osoa.sca.ComponentContext;
+import org.osoa.sca.ServiceReference;
+import org.osoa.sca.annotations.Context;
+import org.osoa.sca.annotations.Destroy;
+import org.osoa.sca.annotations.EagerInit;
+import org.osoa.sca.annotations.Init;
+import org.osoa.sca.annotations.Property;
+import org.osoa.sca.annotations.Reference;
+import org.osoa.sca.annotations.Scope;
+
+import scheduler.Scheduler;
+
+/**
+ * An implementation of the Add service
+ */
+@Scope("COMPOSITE")
+@EagerInit
+public class WorkerImpl implements Worker {
+	
+	@Reference
+	protected Scheduler scheduler;
+	
+	@Property
+	protected String name;
+	
+	@Context
+	protected ComponentContext context;
+
+	@Init
+	public void start(){
+		ServiceReference<Worker> ref = context.createSelfReference(Worker.class);
+        scheduler.addWorker(name, ref);
+	}
+	
+	@Destroy 
+	public void stop(){
+		//scheduler.removeWorker(name);
+	}
+	
+    
+    public String doSomething(String something){
+    	return something + name + " ";
+    }
+
+}
diff --git a/sandbox/slaws/scheduler/src/main/resources/scheduler/META-INF/sca-contribution.xml b/sandbox/slaws/scheduler/src/main/resources/scheduler/META-INF/sca-contribution.xml
new file mode 100644
index 0000000000..39f30c8603
--- /dev/null
+++ b/sandbox/slaws/scheduler/src/main/resources/scheduler/META-INF/sca-contribution.xml
@@ -0,0 +1,23 @@
+<?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.    
+-->
+<contribution xmlns="http://www.osoa.org/xmlns/sca/1.0"
+              xmlns:sample="http://sample">
+   <deployable composite="sample:Scheduler"/>
+</contribution>
\ No newline at end of file
diff --git a/sandbox/slaws/scheduler/src/main/resources/scheduler/scheduler.composite b/sandbox/slaws/scheduler/src/main/resources/scheduler/scheduler.composite
new file mode 100644
index 0000000000..2ab84536ea
--- /dev/null
+++ b/sandbox/slaws/scheduler/src/main/resources/scheduler/scheduler.composite
@@ -0,0 +1,43 @@
+<?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://www.osoa.org/xmlns/sca/1.0"
+           targetNamespace="http://sample"
+           xmlns:sample="http://sample"
+           name="Scheduler">
+
+    <component name="Scheduler">
+	    <implementation.java class="scheduler.SchedulerImpl"/>
+        <service name="Scheduler">
+            <binding.ws uri="http://localhost:8080/Scheduler"/>
+        </service>
+    </component>  
+    
+    <component name="Scheduler2">
+        <implementation.java class="scheduler.SchedulerImpl"/>
+        <service name="Scheduler">
+            <binding.ws uri="http://localhost:8080/Scheduler2"/>
+        </service>
+        <reference name="workers" multiplicity="0..n">
+            <binding.ws uri="http://localhost:8081/WorkerA"/>
+            <binding.ws uri="http://localhost:8082/WorkerB"/>
+        </reference>
+    </component>    
+
+</composite>
diff --git a/sandbox/slaws/scheduler/src/main/resources/workerA/META-INF/sca-contribution.xml b/sandbox/slaws/scheduler/src/main/resources/workerA/META-INF/sca-contribution.xml
new file mode 100644
index 0000000000..685e500a5c
--- /dev/null
+++ b/sandbox/slaws/scheduler/src/main/resources/workerA/META-INF/sca-contribution.xml
@@ -0,0 +1,23 @@
+<?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.    
+-->
+<contribution xmlns="http://www.osoa.org/xmlns/sca/1.0"
+              xmlns:sample="http://sample">
+   <deployable composite="sample:WorkerA"/>
+</contribution>
\ No newline at end of file
diff --git a/sandbox/slaws/scheduler/src/main/resources/workerA/workerA.composite b/sandbox/slaws/scheduler/src/main/resources/workerA/workerA.composite
new file mode 100644
index 0000000000..9a112358b9
--- /dev/null
+++ b/sandbox/slaws/scheduler/src/main/resources/workerA/workerA.composite
@@ -0,0 +1,36 @@
+<?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://www.osoa.org/xmlns/sca/1.0"
+           targetNamespace="http://sample"
+           xmlns:sample="http://sample"
+           name="CWorkerA">
+
+    <component name="WorkerA">
+        <implementation.java class="worker.WorkerImpl" />
+        <property name="name">WorkerA</property>
+        <service name="Worker">
+            <binding.ws uri="http://localhost:8081/WorkerA"/>
+        </service>
+        <reference name="scheduler">
+            <binding.ws uri="http://localhost:8080/Scheduler"/>
+        </reference>
+    </component>
+    
+</composite>
diff --git a/sandbox/slaws/scheduler/src/main/resources/workerB/META-INF/sca-contribution.xml b/sandbox/slaws/scheduler/src/main/resources/workerB/META-INF/sca-contribution.xml
new file mode 100644
index 0000000000..eb5fb562d4
--- /dev/null
+++ b/sandbox/slaws/scheduler/src/main/resources/workerB/META-INF/sca-contribution.xml
@@ -0,0 +1,23 @@
+<?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.    
+-->
+<contribution xmlns="http://www.osoa.org/xmlns/sca/1.0"
+              xmlns:sample="http://sample">
+   <deployable composite="sample:WorkerB"/>
+</contribution>
\ No newline at end of file
diff --git a/sandbox/slaws/scheduler/src/main/resources/workerB/workerB.composite b/sandbox/slaws/scheduler/src/main/resources/workerB/workerB.composite
new file mode 100644
index 0000000000..4f8a73657d
--- /dev/null
+++ b/sandbox/slaws/scheduler/src/main/resources/workerB/workerB.composite
@@ -0,0 +1,36 @@
+<?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://www.osoa.org/xmlns/sca/1.0"
+           targetNamespace="http://sample"
+           xmlns:sample="http://sample"
+           name="CWorkerA">
+
+    <component name="WorkerB">
+        <implementation.java class="worker.WorkerImpl" />
+        <property name="name">WorkerB</property>
+        <service name="Worker">
+            <binding.ws uri="http://localhost:8082/WorkerB"/>
+        </service>
+        <reference name="scheduler">
+            <binding.ws uri="http://localhost:8080/Scheduler"/>
+        </reference>
+    </component>
+    
+</composite>
diff --git a/sandbox/slaws/scheduler/src/test/java/calculator/SchedulerTestCase.java b/sandbox/slaws/scheduler/src/test/java/calculator/SchedulerTestCase.java
new file mode 100644
index 0000000000..def6e637dc
--- /dev/null
+++ b/sandbox/slaws/scheduler/src/test/java/calculator/SchedulerTestCase.java
@@ -0,0 +1,99 @@
+/*
+ * 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 calculator;
+
+
+import junit.framework.Assert;
+
+import org.apache.tuscany.sca.node.SCAClient;
+import org.apache.tuscany.sca.node.SCAContribution;
+import org.apache.tuscany.sca.node.SCANode;
+import org.apache.tuscany.sca.node.SCANodeFactory;
+import org.apache.tuscany.sca.node.launcher.DomainManagerLauncher;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import worker.Worker;
+
+/**
+ * Runs a distributed domain in a single VM by using and in memory 
+ * implementation of the distributed domain
+ */
+public class SchedulerTestCase {
+
+	private static SCANode schedulerNode = null; 
+	private static SCANode workerNodeA = null;
+	private static SCANode workerNodeB = null;
+
+    @BeforeClass
+    public static void init() throws Exception {
+             
+        try {
+            System.out.println("Setting up scheduler");
+            
+            SCANodeFactory nodeFactory = SCANodeFactory.newInstance();
+            
+            schedulerNode = nodeFactory.createSCANode("scheduler/scheduler.composite", 
+                                                      new SCAContribution("scheduler", "./target/classes"));
+            workerNodeA   = nodeFactory.createSCANode("workerA/workerA.composite", 
+                                                      new SCAContribution("workerA", "./target/classes"));
+            workerNodeB   = nodeFactory.createSCANode("workerB/workerB.composite", 
+                                                      new SCAContribution("workerB", "./target/classes"));                                                      
+                                                      
+
+
+            schedulerNode.start();
+            workerNodeA.start();
+            workerNodeB.start();
+            
+
+        } catch(Exception ex){
+            System.err.println(ex.toString());
+        }  
+        
+   }
+
+    @AfterClass
+    public static void destroy() throws Exception {
+    	schedulerNode.stop();
+    	workerNodeA.stop();
+    	workerNodeB.stop();
+    }    
+
+    @Test
+    public void testScheduler() throws Exception {
+        SCAClient client = (SCAClient)schedulerNode;
+        
+        Worker scheduler  = 
+            client.getService(Worker.class, "Scheduler/Worker");
+
+        System.out.println(scheduler.doSomething("Hello "));
+    }
+    
+    @Test
+    public void testScheduler2() throws Exception {
+        SCAClient client = (SCAClient)schedulerNode;
+        
+        Worker scheduler  = 
+            client.getService(Worker.class, "Scheduler2/Worker");
+
+        System.out.println(scheduler.doSomething("Hello "));
+    }    
+}