Version of calculator using different ways to start tuscany/sca runtime

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@901960 13f79535-47bb-0310-9956-ffa450edef68

14 files changed, 564 insertions, 0 deletions

diff --git a/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/AddService.java b/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/AddService.java
new file mode 100644
index 0000000000..188451ebac
--- /dev/null
+++ b/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/AddService.java
@@ -0,0 +1,28 @@
+/*
+ * 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;
+
+/**
+ * The Add service interface
+ */
+public interface AddService {
+
+    double add(double n1, double n2);
+
+}
diff --git a/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/AddServiceImpl.java b/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/AddServiceImpl.java
new file mode 100644
index 0000000000..bb75bb2337
--- /dev/null
+++ b/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/AddServiceImpl.java
@@ -0,0 +1,38 @@
+/*
+ * 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 java.util.logging.Level;
+import java.util.logging.Logger;
+
+import org.oasisopen.sca.annotation.Service;
+
+/**
+ * An implementation of the Add service
+ */
+@Service(AddService.class)
+public class AddServiceImpl implements AddService {
+
+    public double add(double n1, double n2) {
+        Logger logger = Logger.getLogger("calculator");
+        logger.log(Level.FINEST, "Adding " + n1 + " and " + n2);
+        return n1 + n2;
+    }
+
+}
diff --git a/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/CalculatorClient.java b/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/CalculatorClient.java
new file mode 100644
index 0000000000..9eb16c8552
--- /dev/null
+++ b/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/CalculatorClient.java
@@ -0,0 +1,62 @@
+/*
+ * 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 org.apache.tuscany.sca.node.Client;
+import org.apache.tuscany.sca.node.Node;
+import org.apache.tuscany.sca.node.NodeFactory;
+import org.apache.tuscany.sca.node.configuration.ContributionConfiguration;
+import org.apache.tuscany.sca.node.configuration.NodeConfiguration;
+
+/**
+ * This client program shows how to create an SCA runtime, start it,
+ * and locate and invoke a SCA component
+ */
+public class CalculatorClient {
+    public static void main(String[] args) throws Exception {
+
+        NodeFactory factory = NodeFactory.getInstance();
+        
+        ContributionConfiguration contributionConfiguration = 
+            factory.createContributionConfiguration()
+                .addDeploymentComposite("Calculator.composite")
+                .setURI("calculator")
+                .setLocation("target/classes");
+        
+        NodeConfiguration configuration = 
+            factory.createNodeConfiguration()
+                .setDomainURI("tuscany:calculator")
+                .addContribution(contributionConfiguration);
+
+        Node node = factory.createNode(configuration);
+        node.start();
+        
+        CalculatorService calculatorService = ((Client)node).getService(CalculatorService.class, "CalculatorServiceComponent");
+        
+        // Calculate
+        System.out.println("3 + 2=" + calculatorService.add(3, 2));
+        System.out.println("3 - 2=" + calculatorService.subtract(3, 2));
+        System.out.println("3 * 2=" + calculatorService.multiply(3, 2));
+        System.out.println("3 / 2=" + calculatorService.divide(3, 2));
+
+        node.stop();
+    }
+
+}
diff --git a/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/CalculatorService.java b/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/CalculatorService.java
new file mode 100644
index 0000000000..ce1cdaae5a
--- /dev/null
+++ b/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/CalculatorService.java
@@ -0,0 +1,37 @@
+/*
+ * 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 org.oasisopen.sca.annotation.Remotable;
+
+/**
+ * The Calculator service interface.
+ */
+@Remotable
+public interface CalculatorService {
+
+    double add(double n1, double n2);
+
+    double subtract(double n1, double n2);
+
+    double multiply(double n1, double n2);
+
+    double divide(double n1, double n2);
+
+}
diff --git a/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/CalculatorServiceImpl.java b/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/CalculatorServiceImpl.java
new file mode 100644
index 0000000000..fc53393d23
--- /dev/null
+++ b/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/CalculatorServiceImpl.java
@@ -0,0 +1,72 @@
+/*
+ * 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 org.oasisopen.sca.annotation.Reference;
+import org.oasisopen.sca.annotation.Service;
+
+
+/**
+ * An implementation of the Calculator service.
+ */
+@Service(CalculatorService.class)
+public class CalculatorServiceImpl implements CalculatorService {
+
+    private AddService addService;
+    private SubtractService subtractService;
+    private MultiplyService multiplyService;
+    private DivideService divideService;
+
+    @Reference
+    public void setAddService(AddService addService) {
+        this.addService = addService;
+    }
+
+    @Reference
+    public void setSubtractService(SubtractService subtractService) {
+        this.subtractService = subtractService;
+    }
+
+    @Reference
+    public void setDivideService(DivideService divideService) {
+        this.divideService = divideService;
+    }
+
+    @Reference
+    public void setMultiplyService(MultiplyService multiplyService) {
+        this.multiplyService = multiplyService;
+    }
+
+    public double add(double n1, double n2) {
+        return addService.add(n1, n2);
+    }
+
+    public double subtract(double n1, double n2) {
+        return subtractService.subtract(n1, n2);
+    }
+
+    public double multiply(double n1, double n2) {
+        return multiplyService.multiply(n1, n2);
+    }
+
+    public double divide(double n1, double n2) {
+        return divideService.divide(n1, n2);
+    }
+
+}
diff --git a/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/DivideService.java b/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/DivideService.java
new file mode 100644
index 0000000000..30d248208b
--- /dev/null
+++ b/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/DivideService.java
@@ -0,0 +1,28 @@
+/*
+ * 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;
+
+/**
+ * The divide service interface
+ */
+public interface DivideService {
+
+    double divide(double n1, double n2);
+
+}
diff --git a/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/DivideServiceImpl.java b/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/DivideServiceImpl.java
new file mode 100644
index 0000000000..b1250ed9f2
--- /dev/null
+++ b/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/DivideServiceImpl.java
@@ -0,0 +1,38 @@
+/*
+ * 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 java.util.logging.Level;
+import java.util.logging.Logger;
+
+import org.oasisopen.sca.annotation.Service;
+
+/**
+ * An implementation of the Divide service.
+ */
+@Service(DivideService.class)
+public class DivideServiceImpl implements DivideService {
+
+    public double divide(double n1, double n2) {
+        Logger logger = Logger.getLogger("calculator");
+        logger.log(Level.FINEST, "Dividing " + n1 + " with " + n2);
+        return n1 / n2;
+    }
+
+}
diff --git a/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/MultiplyService.java b/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/MultiplyService.java
new file mode 100644
index 0000000000..5290605938
--- /dev/null
+++ b/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/MultiplyService.java
@@ -0,0 +1,28 @@
+/*
+ * 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;
+
+/**
+ * The interface for the multiply service
+ */
+public interface MultiplyService {
+
+    double multiply(double n1, double n2);
+
+}
diff --git a/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/MultiplyServiceImpl.java b/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/MultiplyServiceImpl.java
new file mode 100644
index 0000000000..11f68c66e3
--- /dev/null
+++ b/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/MultiplyServiceImpl.java
@@ -0,0 +1,38 @@
+/*
+ * 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 java.util.logging.Level;
+import java.util.logging.Logger;
+
+import org.oasisopen.sca.annotation.Service;
+
+/**
+ * An implementation of the Multiply service.
+ */
+@Service(MultiplyService.class)
+public class MultiplyServiceImpl implements MultiplyService {
+
+    public double multiply(double n1, double n2) {
+        Logger logger = Logger.getLogger("calculator");
+        logger.log(Level.FINEST, "Multiplying " + n1 + " with " + n2);
+        return n1 * n2;
+    }
+
+}
diff --git a/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/SubtractService.java b/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/SubtractService.java
new file mode 100644
index 0000000000..bf0d1882b6
--- /dev/null
+++ b/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/SubtractService.java
@@ -0,0 +1,28 @@
+/*
+ * 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;
+
+/**
+ * The interface for the multiply service
+ */
+public interface SubtractService {
+
+    double subtract(double n1, double n2);
+
+}
diff --git a/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/SubtractServiceImpl.java b/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/SubtractServiceImpl.java
new file mode 100644
index 0000000000..30e59bf668
--- /dev/null
+++ b/sandbox/lresende/sca-2.x/samples/calculator/src/main/java/calculator/SubtractServiceImpl.java
@@ -0,0 +1,38 @@
+/*
+ * 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 java.util.logging.Level;
+import java.util.logging.Logger;
+
+import org.oasisopen.sca.annotation.Service;
+
+/**
+ * An implementation of the subtract service.
+ */
+@Service(SubtractService.class)
+public class SubtractServiceImpl implements SubtractService {
+
+    public double subtract(double n1, double n2) {
+        Logger logger = Logger.getLogger("calculator");
+        logger.log(Level.FINEST, "Subtracting " + n1 + " from " + n2);
+        return n1 - n2;
+    }
+
+}
diff --git a/sandbox/lresende/sca-2.x/samples/calculator/src/main/resources/Calculator.composite b/sandbox/lresende/sca-2.x/samples/calculator/src/main/resources/Calculator.composite
new file mode 100644
index 0000000000..05bea57944
--- /dev/null
+++ b/sandbox/lresende/sca-2.x/samples/calculator/src/main/resources/Calculator.composite
@@ -0,0 +1,49 @@
+<?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"
+           targetNamespace="http://sample"
+           xmlns:sample="http://sample"
+           name="Calculator">
+
+    <component name="CalculatorServiceComponent">
+		<implementation.java class="calculator.CalculatorServiceImpl"/>
+        <reference name="addService" target="AddServiceComponent" />
+        <reference name="subtractService" target="SubtractServiceComponent" />
+        <reference name="multiplyService" target="MultiplyServiceComponent" />
+        <reference name="divideService" target="DivideServiceComponent" />
+    </component>
+
+    <component name="AddServiceComponent">
+        <implementation.java class="calculator.AddServiceImpl"/>
+    </component>
+
+    <component name="SubtractServiceComponent">
+        <implementation.java class="calculator.SubtractServiceImpl"/>
+    </component>
+
+    <component name="MultiplyServiceComponent">
+        <implementation.java class="calculator.MultiplyServiceImpl"/>
+    </component>
+
+    <component name="DivideServiceComponent">
+        <implementation.java class="calculator.DivideServiceImpl"/>
+    </component>
+
+</composite>
diff --git a/sandbox/lresende/sca-2.x/samples/calculator/src/main/resources/META-INF/sca-contribution.xml b/sandbox/lresende/sca-2.x/samples/calculator/src/main/resources/META-INF/sca-contribution.xml
new file mode 100644
index 0000000000..8d6012e5c4
--- /dev/null
+++ b/sandbox/lresende/sca-2.x/samples/calculator/src/main/resources/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://docs.oasis-open.org/ns/opencsa/sca/200912"
+              xmlns:sample="http://sample">
+   <deployable composite="sample:Calculator"/>
+</contribution>
\ No newline at end of file
diff --git a/sandbox/lresende/sca-2.x/samples/calculator/src/test/java/calculator/CalculatorTestCase.java b/sandbox/lresende/sca-2.x/samples/calculator/src/test/java/calculator/CalculatorTestCase.java
new file mode 100644
index 0000000000..4f89ae8c8d
--- /dev/null
+++ b/sandbox/lresende/sca-2.x/samples/calculator/src/test/java/calculator/CalculatorTestCase.java
@@ -0,0 +1,57 @@
+/*
+ * 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 static org.junit.Assert.assertEquals;
+
+import org.apache.tuscany.sca.node.Node;
+import org.apache.tuscany.sca.node.NodeFactory;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+/**
+ * This shows how to test the Calculator service component.
+ */
+public class CalculatorTestCase{
+    private static Node node;
+    private static CalculatorService calculatorService;
+
+
+    @BeforeClass
+    public static void setUpBeforeClass() throws Exception {
+        // ideally it would be: node = NodeFactory.newInstance().createNode("target/classes").start();
+        node = NodeFactory.newInstance().createNode((String)null, new String[] {"target/classes"}).start();
+        calculatorService = node.getService(CalculatorService.class, "CalculatorServiceComponent");
+    }
+
+    @AfterClass
+    public static void tearDownAfterClass() throws Exception {
+    	node.stop();
+    }
+
+    @Test
+    public void testCalculator() throws Exception {
+        // Calculate
+        assertEquals(calculatorService.add(3, 2), 5.0, 0);
+        assertEquals(calculatorService.subtract(3, 2), 1.0, 0);
+        assertEquals(calculatorService.multiply(3, 2), 6.0, 0);
+        assertEquals(calculatorService.divide(3, 2), 1.5, 0);
+    }
+}