Restoring calculator-equinox sample that was removed accidentally

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@739512 13f79535-47bb-0310-9956-ffa450edef68

18 files changed, 1129 insertions, 0 deletions

diff --git a/java/sca/samples/calculator-equinox/README b/java/sca/samples/calculator-equinox/README
new file mode 100644
index 0000000000..cde5fe981f
--- /dev/null
+++ b/java/sca/samples/calculator-equinox/README
@@ -0,0 +1,97 @@
+Calculator Sample

+=================

+This sample implements a simple calculator using SCA components. 

+

+The README in the samples directory (the directory above this) provides 

+general instructions about building and running samples. Take a look there 

+first. 

+

+If you just want to run it to see what happens open a command prompt, navigate

+to this sample directory and do:

+

+ant run

+

+OR if you don't have ant, on Windows do

+

+java -cp ..\..\lib\tuscany-sca-manifest.jar;target\sample-calculator.jar calculator.CalculatorClient

+

+and on *nix do

+

+java -cp ../../lib/tuscany-sca-manifest.jar:target/sample-calculator.jar calculator.CalculatorClient

+

+Sample Overview

+---------------

+The sample provides a single calculator service with a default SCA (java) 

+binding. The CalculatorClient exercises this interface by calling add, 

+subtract, multiply and divide operations. This results in messages passing to 

+the appropriate components in the composite across the local wires.

+

+calculator/

+  src/

+    main/

+      java/

+        calculator/

+          CalculatorService.java  - the first component, calls +-/* as 

+                                    appropriate

+          CalculatorServiceImpl.java

+          AddService.java         - adds two numbers

+          AddServiceImpl.java

+          SubtractService.java    - subtracts one number from another

+          SubtractServiceImpl.java

+          MultiplyService.java    - multiplies two numbers

+          MultiplyServiceImpl.java

+          DivideService.java      - divides one number by another

+          DivideServiceImpl.java

+          CalculatorClient.java   - starts the SCA Runtime and 

+                                    deploys the Calculator.composite. 

+                                    It then calls the deployed Calculator 

+                                    Components services

+      resources/

+        Calculator.composite      - the SCA assembly for this sample

+    test/

+      java/

+        calculator/

+          CalculatorTestCase.java - JUnit test case 

+  calculator.png                  - a pictorial representation of the sample 

+                                    .composite file

+  build.xml                       - the Ant build file

+  pom.xml                         - the Maven build file        

+

+Building And Running The Sample Using Ant

+-----------------------------------------

+With the binary distribution the sample can be built and run using Ant as 

+follows

+

+cd calculator

+ant compile

+ant run

+

+You should see the following output from the run target.

+

+run:

+     [java] 3 + 2=5.0

+     [java] 3 - 2=1.0

+     [java] 3 * 2=6.0

+     [java] 3 / 2=1.5

+

+Building And Running The Sample Using Maven 

+-------------------------------------------

+With either the binary or source distributions the sample can be built and run 

+using Maven as follows. 

+

+cd calculator

+mvn

+

+You should see the following output from the test phase.

+

+-------------------------------------------------------

+ T E S T S

+-------------------------------------------------------

+Running calculator.CalculatorTestCase

+Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.272 sec

+

+Results :

+

+Tests run: 1, Failures: 0, Errors: 0, Skipped: 0

+

+This shows that the Junit test cases have run successfully. 

diff --git a/java/sca/samples/calculator-equinox/build.xml b/java/sca/samples/calculator-equinox/build.xml
new file mode 100644
index 0000000000..40938ebb8e
--- /dev/null
+++ b/java/sca/samples/calculator-equinox/build.xml
@@ -0,0 +1,74 @@
+<!--
+ * 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 name="calculator-equinox" default="run"> <!-- could dertmine the same name autmatically -->
+    <property name="sample.name" value="${ant.project.name}"/>
+    <property name="sample.jar" value="./target/sample-${sample.name}.jar" />
+	
+    <target name="init">
+        <mkdir dir="target/classes"/>
+    </target>
+	
+    <target name="compile" depends="init">
+        <javac srcdir="src/main/java"
+               destdir="target/classes"
+               debug="on"
+               source="1.5"
+               target="1.5">
+            <classpath>
+                <fileset dir="../../modules">
+                    <include name="*.jar" />
+                    <include name="*/*.jar" />
+                </fileset>
+            </classpath>
+        </javac> 
+        <copy todir="target/classes">
+            <fileset dir="src/main/resources"/>
+        </copy>
+        <jar destfile="${sample.jar}" basedir="target/classes">
+        </jar>    	
+    </target>	
+	
+    <target name="run" depends="compile">
+        <java jar="../../modules/tuscany-node-launcher-2.0-SNAPSHOT.jar"
+              fork="true">
+            <jvmarg value="-Djava.util.logging.config.file=../logging.properties"/>
+            <arg value="Calculator.composite"/> 
+        	 <!-- would be good to have the node launcher run the first deplyable 
+        	      composite if this is not specified so I don't have to put it here -->
+            <arg value="${sample.jar}"/>
+        </java>    	
+    </target>
+	
+    <target name="run-equinox" depends="compile">
+        <java jar="../../modules/tuscany-node-launcher-equinox-2.0-SNAPSHOT.jar"
+              fork="true">
+            <jvmarg value="-Djava.util.logging.config.file=../logging.properties"/>
+            <arg value="Calculator.composite"/> 
+        	 <!-- would be good to have the node launcher run the first deplyable 
+        	      composite if this is not specified so I don't have to put it here -->
+            <arg value="${sample.jar}"/>
+        </java>    	
+    </target>
+	
+    <target name="clean">
+        <delete quiet="true" includeemptydirs="true">
+            <fileset dir="target"/>
+        </delete>
+    </target>
+</project>
diff --git a/java/sca/samples/calculator-equinox/calculator.png b/java/sca/samples/calculator-equinox/calculator.png
new file mode 100644
index 0000000000..995a57b1fd
--- /dev/null
+++ b/java/sca/samples/calculator-equinox/calculator.png
diff --git a/java/sca/samples/calculator-equinox/calculator.svg b/java/sca/samples/calculator-equinox/calculator.svg
new file mode 100644
index 0000000000..af34f07e04
--- /dev/null
+++ b/java/sca/samples/calculator-equinox/calculator.svg
@@ -0,0 +1,329 @@
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+<!--

+ * 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.

+-->

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+   xmlns:svg="http://www.w3.org/2000/svg"

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+   id="svg2"

+   sodipodi:version="0.32"

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diff --git a/java/sca/samples/calculator-equinox/pom.xml b/java/sca/samples/calculator-equinox/pom.xml
new file mode 100644
index 0000000000..abdda77c77
--- /dev/null
+++ b/java/sca/samples/calculator-equinox/pom.xml
@@ -0,0 +1,91 @@
+<?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-calculator-equinox</artifactId>
+    <name>Apache Tuscany SCA Calculator Equinox 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>2.0-SNAPSHOT</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-node-launcher-equinox</artifactId>
+            <version>2.0-SNAPSHOT</version>
+        </dependency>   
+        
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-node-impl</artifactId>
+            <version>2.0-SNAPSHOT</version>
+            <scope>runtime</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-implementation-java-runtime</artifactId>
+            <version>2.0-SNAPSHOT</version>
+            <scope>runtime</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-implementation-node-runtime</artifactId>
+            <version>2.0-SNAPSHOT</version>
+            <scope>runtime</scope>
+        </dependency>
+        
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-extensibility-equinox</artifactId>
+            <version>2.0-SNAPSHOT</version>
+            <scope>runtime</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/java/sca/samples/calculator-equinox/src/main/java/calculator/AddService.java b/java/sca/samples/calculator-equinox/src/main/java/calculator/AddService.java
new file mode 100644
index 0000000000..188451ebac
--- /dev/null
+++ b/java/sca/samples/calculator-equinox/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/java/sca/samples/calculator-equinox/src/main/java/calculator/AddServiceImpl.java b/java/sca/samples/calculator-equinox/src/main/java/calculator/AddServiceImpl.java
new file mode 100644
index 0000000000..7ca8fb04b5
--- /dev/null
+++ b/java/sca/samples/calculator-equinox/src/main/java/calculator/AddServiceImpl.java
@@ -0,0 +1,35 @@
+/*
+ * 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;
+
+/**
+ * An implementation of the Add service
+ */
+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/java/sca/samples/calculator-equinox/src/main/java/calculator/CalculatorClient.java b/java/sca/samples/calculator-equinox/src/main/java/calculator/CalculatorClient.java
new file mode 100644
index 0000000000..84c98d7f70
--- /dev/null
+++ b/java/sca/samples/calculator-equinox/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.oasisopen.sca.annotation.EagerInit;
+import org.oasisopen.sca.annotation.Init;
+import org.oasisopen.sca.annotation.Reference;
+import org.oasisopen.sca.annotation.Scope;
+
+/**
+ * This client program shows how to create an SCA runtime, start it,
+ * and locate and invoke a SCA component
+ */
+@Scope("COMPOSITE") @EagerInit
+public class CalculatorClient {
+    
+    private CalculatorService calculatorService;
+
+    @Reference
+    public void setCalculatorService(CalculatorService calculatorService) {
+        this.calculatorService = calculatorService;
+    }
+    
+    @Init
+    public void calculate() {
+
+        // Calculate
+        System.out.println("SCA API ClassLoader: " + print(Reference.class.getClassLoader()));
+        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));
+    }
+    
+    private static String print(ClassLoader cl) {
+        StringBuffer buf = new StringBuffer();
+        for (; cl != null;) {
+            buf.append(cl.toString());
+            buf.append(' ');
+            cl = cl.getParent();
+        }
+        return buf.toString();
+    }
+
+}
diff --git a/java/sca/samples/calculator-equinox/src/main/java/calculator/CalculatorService.java b/java/sca/samples/calculator-equinox/src/main/java/calculator/CalculatorService.java
new file mode 100644
index 0000000000..031fa8b912
--- /dev/null
+++ b/java/sca/samples/calculator-equinox/src/main/java/calculator/CalculatorService.java
@@ -0,0 +1,35 @@
+/*
+ * 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 Calculator service interface.
+ */
+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/java/sca/samples/calculator-equinox/src/main/java/calculator/CalculatorServiceImpl.java b/java/sca/samples/calculator-equinox/src/main/java/calculator/CalculatorServiceImpl.java
new file mode 100644
index 0000000000..17fad7de6b
--- /dev/null
+++ b/java/sca/samples/calculator-equinox/src/main/java/calculator/CalculatorServiceImpl.java
@@ -0,0 +1,70 @@
+/*
+ * 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;
+
+
+/**
+ * An implementation of the Calculator service.
+ */
+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/java/sca/samples/calculator-equinox/src/main/java/calculator/DivideService.java b/java/sca/samples/calculator-equinox/src/main/java/calculator/DivideService.java
new file mode 100644
index 0000000000..30d248208b
--- /dev/null
+++ b/java/sca/samples/calculator-equinox/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/java/sca/samples/calculator-equinox/src/main/java/calculator/DivideServiceImpl.java b/java/sca/samples/calculator-equinox/src/main/java/calculator/DivideServiceImpl.java
new file mode 100644
index 0000000000..1323edf55a
--- /dev/null
+++ b/java/sca/samples/calculator-equinox/src/main/java/calculator/DivideServiceImpl.java
@@ -0,0 +1,35 @@
+/*
+ * 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;
+
+/**
+ * An implementation of the Divide service.
+ */
+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/java/sca/samples/calculator-equinox/src/main/java/calculator/MultiplyService.java b/java/sca/samples/calculator-equinox/src/main/java/calculator/MultiplyService.java
new file mode 100644
index 0000000000..5290605938
--- /dev/null
+++ b/java/sca/samples/calculator-equinox/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/java/sca/samples/calculator-equinox/src/main/java/calculator/MultiplyServiceImpl.java b/java/sca/samples/calculator-equinox/src/main/java/calculator/MultiplyServiceImpl.java
new file mode 100644
index 0000000000..91b803bc9e
--- /dev/null
+++ b/java/sca/samples/calculator-equinox/src/main/java/calculator/MultiplyServiceImpl.java
@@ -0,0 +1,35 @@
+/*
+ * 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;
+
+/**
+ * An implementation of the Multiply service.
+ */
+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/java/sca/samples/calculator-equinox/src/main/java/calculator/SubtractService.java b/java/sca/samples/calculator-equinox/src/main/java/calculator/SubtractService.java
new file mode 100644
index 0000000000..bf0d1882b6
--- /dev/null
+++ b/java/sca/samples/calculator-equinox/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/java/sca/samples/calculator-equinox/src/main/java/calculator/SubtractServiceImpl.java b/java/sca/samples/calculator-equinox/src/main/java/calculator/SubtractServiceImpl.java
new file mode 100644
index 0000000000..58cc4a3547
--- /dev/null
+++ b/java/sca/samples/calculator-equinox/src/main/java/calculator/SubtractServiceImpl.java
@@ -0,0 +1,35 @@
+/*
+ * 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;
+
+/**
+ * An implementation of the subtract service.
+ */
+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/java/sca/samples/calculator-equinox/src/main/resources/Calculator.composite b/java/sca/samples/calculator-equinox/src/main/resources/Calculator.composite
new file mode 100644
index 0000000000..913081b9be
--- /dev/null
+++ b/java/sca/samples/calculator-equinox/src/main/resources/Calculator.composite
@@ -0,0 +1,54 @@
+<?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="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>
+
+    <component name="CalculatorClient">
+		<implementation.java class="calculator.CalculatorClient"/>
+        <reference name="calculatorService" target="CalculatorServiceComponent" />
+    </component>
+
+</composite>
diff --git a/java/sca/samples/calculator-equinox/src/test/java/calculator/CalculatorTestCase.java b/java/sca/samples/calculator-equinox/src/test/java/calculator/CalculatorTestCase.java
new file mode 100644
index 0000000000..b49e1da130
--- /dev/null
+++ b/java/sca/samples/calculator-equinox/src/test/java/calculator/CalculatorTestCase.java
@@ -0,0 +1,65 @@
+/*
+ * 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.Node;
+import org.apache.tuscany.sca.node.equinox.launcher.Contribution;
+import org.apache.tuscany.sca.node.equinox.launcher.ContributionLocationHelper;
+import org.apache.tuscany.sca.node.equinox.launcher.NodeLauncher;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+/**
+ * This shows how to test the Calculator composition.
+ */
+public class CalculatorTestCase {
+
+    private static NodeLauncher launcher;
+    private static Node node;   
+    
+    public static void main(String[] args) throws Exception {
+    	setUpBeforeClass();
+    	tearDownAfterClass();
+    }
+    
+    @BeforeClass
+    public static void setUpBeforeClass() throws Exception {
+        launcher = NodeLauncher.newInstance();
+        String location = ContributionLocationHelper.getContributionLocation(CalculatorClient.class);
+        node = launcher.createNode("Calculator.composite", new Contribution("test", location));
+        System.out.println("SCA Node API ClassLoader: " + node.getClass().getClassLoader());
+        node.start();
+    }
+
+    @AfterClass
+    public static void tearDownAfterClass() throws Exception {
+        if (node != null) {
+            node.stop();
+            node.destroy();
+        }
+        if (launcher != null) {
+            launcher.destroy();
+        }
+    }
+
+    @Test
+    public void testDummy() throws Exception {
+    }
+}