Added a variation of HelloWorldClient that doesn't use any Tuscany specific APIs, only the SCA spec standard programming model. Applied the same idea to calculator in a new calculator-lean module to show how this pattern works with just components (helloworld-ws-reference-lean used a reference with a WS binding). Also started to show how test cases can use the same pattern in calculator-lean.

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@688620 13f79535-47bb-0310-9956-ffa450edef68

21 files changed, 1134 insertions, 0 deletions

diff --git a/java/sca/samples/calculator-lean/README b/java/sca/samples/calculator-lean/README
new file mode 100644
index 0000000000..ceb532faed
--- /dev/null
+++ b/java/sca/samples/calculator-lean/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-lean/calculator.png b/java/sca/samples/calculator-lean/calculator.png
new file mode 100644
index 0000000000..995a57b1fd
--- /dev/null
+++ b/java/sca/samples/calculator-lean/calculator.png
diff --git a/java/sca/samples/calculator-lean/calculator.svg b/java/sca/samples/calculator-lean/calculator.svg
new file mode 100644
index 0000000000..0615925c50
--- /dev/null
+++ b/java/sca/samples/calculator-lean/calculator.svg
@@ -0,0 +1,329 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!--
+ * 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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diff --git a/java/sca/samples/calculator-lean/pom.xml b/java/sca/samples/calculator-lean/pom.xml
new file mode 100644
index 0000000000..10f4ae110f
--- /dev/null
+++ b/java/sca/samples/calculator-lean/pom.xml
@@ -0,0 +1,71 @@
+<?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-calculator-lean</artifactId>
+    <name>Apache Tuscany SCA Calculator 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-impl</artifactId>
+            <version>1.4-SNAPSHOT</version>
+            <scope>runtime</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-implementation-java-runtime</artifactId>
+            <version>1.4-SNAPSHOT</version>
+            <scope>runtime</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.2</version>
+            <scope>test</scope>
+        </dependency>
+
+    </dependencies>
+
+    <build>
+       <finalName>${artifactId}</finalName>
+    </build>
+</project>
diff --git a/java/sca/samples/calculator-lean/src/main/java/calculator/AddService.java b/java/sca/samples/calculator-lean/src/main/java/calculator/AddService.java
new file mode 100644
index 0000000000..188451ebac
--- /dev/null
+++ b/java/sca/samples/calculator-lean/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-lean/src/main/java/calculator/AddServiceImpl.java b/java/sca/samples/calculator-lean/src/main/java/calculator/AddServiceImpl.java
new file mode 100644
index 0000000000..7ca8fb04b5
--- /dev/null
+++ b/java/sca/samples/calculator-lean/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-lean/src/main/java/calculator/CalculatorClient.java b/java/sca/samples/calculator-lean/src/main/java/calculator/CalculatorClient.java
new file mode 100644
index 0000000000..2bb8f96dcf
--- /dev/null
+++ b/java/sca/samples/calculator-lean/src/main/java/calculator/CalculatorClient.java
@@ -0,0 +1,51 @@
+/*
+ * 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.osoa.sca.annotations.EagerInit;
+import org.osoa.sca.annotations.Init;
+import org.osoa.sca.annotations.Reference;
+import org.osoa.sca.annotations.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("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));
+    }
+
+}
diff --git a/java/sca/samples/calculator-lean/src/main/java/calculator/CalculatorService.java b/java/sca/samples/calculator-lean/src/main/java/calculator/CalculatorService.java
new file mode 100644
index 0000000000..031fa8b912
--- /dev/null
+++ b/java/sca/samples/calculator-lean/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-lean/src/main/java/calculator/CalculatorServiceImpl.java b/java/sca/samples/calculator-lean/src/main/java/calculator/CalculatorServiceImpl.java
new file mode 100644
index 0000000000..3d861f2018
--- /dev/null
+++ b/java/sca/samples/calculator-lean/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.osoa.sca.annotations.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-lean/src/main/java/calculator/DivideService.java b/java/sca/samples/calculator-lean/src/main/java/calculator/DivideService.java
new file mode 100644
index 0000000000..30d248208b
--- /dev/null
+++ b/java/sca/samples/calculator-lean/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-lean/src/main/java/calculator/DivideServiceImpl.java b/java/sca/samples/calculator-lean/src/main/java/calculator/DivideServiceImpl.java
new file mode 100644
index 0000000000..1323edf55a
--- /dev/null
+++ b/java/sca/samples/calculator-lean/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-lean/src/main/java/calculator/MultiplyService.java b/java/sca/samples/calculator-lean/src/main/java/calculator/MultiplyService.java
new file mode 100644
index 0000000000..5290605938
--- /dev/null
+++ b/java/sca/samples/calculator-lean/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-lean/src/main/java/calculator/MultiplyServiceImpl.java b/java/sca/samples/calculator-lean/src/main/java/calculator/MultiplyServiceImpl.java
new file mode 100644
index 0000000000..91b803bc9e
--- /dev/null
+++ b/java/sca/samples/calculator-lean/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-lean/src/main/java/calculator/SubtractService.java b/java/sca/samples/calculator-lean/src/main/java/calculator/SubtractService.java
new file mode 100644
index 0000000000..bf0d1882b6
--- /dev/null
+++ b/java/sca/samples/calculator-lean/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-lean/src/main/java/calculator/SubtractServiceImpl.java b/java/sca/samples/calculator-lean/src/main/java/calculator/SubtractServiceImpl.java
new file mode 100644
index 0000000000..58cc4a3547
--- /dev/null
+++ b/java/sca/samples/calculator-lean/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-lean/src/main/resources/Calculator.composite b/java/sca/samples/calculator-lean/src/main/resources/Calculator.composite
new file mode 100644
index 0000000000..913081b9be
--- /dev/null
+++ b/java/sca/samples/calculator-lean/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-lean/src/main/resources/CalculatorTest.composite b/java/sca/samples/calculator-lean/src/main/resources/CalculatorTest.composite
new file mode 100644
index 0000000000..906e2a3918
--- /dev/null
+++ b/java/sca/samples/calculator-lean/src/main/resources/CalculatorTest.composite
@@ -0,0 +1,32 @@
+<?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="CalculatorTest">
+           
+    <include name="sample:Calculator"/>
+
+    <component name="CalculatorTestCase">
+		<implementation.java class="calculator.CalculatorTestCase"/>
+        <reference name="calculatorService" target="CalculatorServiceComponent" />
+    </component>
+
+</composite>
diff --git a/java/sca/samples/calculator-lean/src/test/java/calculator/CalculatorTestCase.java b/java/sca/samples/calculator-lean/src/test/java/calculator/CalculatorTestCase.java
new file mode 100644
index 0000000000..a007a28f21
--- /dev/null
+++ b/java/sca/samples/calculator-lean/src/test/java/calculator/CalculatorTestCase.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 junit.framework.TestCase;
+
+import org.apache.tuscany.sca.node.SCANode;
+import org.apache.tuscany.sca.node.SCANodeFactory;
+import org.osoa.sca.annotations.EagerInit;
+import org.osoa.sca.annotations.Reference;
+import org.osoa.sca.annotations.Scope;
+
+/**
+ * This shows how to test the Calculator composition.
+ */
+@Scope("COMPOSITE") @EagerInit
+public class CalculatorTestCase extends TestCase {
+
+    private static CalculatorService calculatorService;
+    private SCANode node;
+    
+    @Reference
+    public void setCalculatorService(CalculatorService calculatorService) {
+        CalculatorTestCase.calculatorService = calculatorService;
+    }
+
+    @Override
+    protected void setUp() throws Exception {
+        SCANodeFactory factory = SCANodeFactory.newInstance();
+        node = factory.createSCANodeFromClassLoader("CalculatorTest.composite", getClass().getClassLoader());
+        node.start();
+    }
+
+    @Override
+    protected void tearDown() throws Exception {
+        node.stop();
+    }
+
+    public void testCalculator() throws Exception {
+        // Calculate
+        assertEquals(calculatorService.add(3, 2), 5.0);
+        assertEquals(calculatorService.subtract(3, 2), 1.0);
+        assertEquals(calculatorService.multiply(3, 2), 6.0);
+        assertEquals(calculatorService.divide(3, 2), 1.5);
+    }
+}
diff --git a/java/sca/samples/helloworld-ws-reference-lean/src/main/java/helloworld/HelloWorldClient5.java b/java/sca/samples/helloworld-ws-reference-lean/src/main/java/helloworld/HelloWorldClient5.java
new file mode 100644
index 0000000000..7c1853566f
--- /dev/null
+++ b/java/sca/samples/helloworld-ws-reference-lean/src/main/java/helloworld/HelloWorldClient5.java
@@ -0,0 +1,47 @@
+/*
+ * 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 helloworld;
+
+import org.apache.tuscany.sca.host.embedded.SCADomain;
+import org.osoa.sca.annotations.EagerInit;
+import org.osoa.sca.annotations.Init;
+import org.osoa.sca.annotations.Reference;
+import org.osoa.sca.annotations.Scope;
+
+/**
+ * The HelloWorld client implementation
+ */
+@Scope("COMPOSITE") @EagerInit
+public class HelloWorldClient5 {
+    
+    @Reference
+    public HelloWorldService helloWorldService;
+
+    public  final static void main(String[] args) throws Exception {
+        SCADomain scaDomain = SCADomain.newInstance("helloworldwsclient5.composite");
+        
+        scaDomain.close();
+    }
+
+    @Init
+    public void doit() {
+        String value = helloWorldService.getGreetings("World");
+        System.out.println(value);
+    }
+}
\ No newline at end of file
diff --git a/java/sca/samples/helloworld-ws-reference-lean/src/main/resources/helloworldwsclient5.composite b/java/sca/samples/helloworld-ws-reference-lean/src/main/resources/helloworldwsclient5.composite
new file mode 100644
index 0000000000..bbac4c3703
--- /dev/null
+++ b/java/sca/samples/helloworld-ws-reference-lean/src/main/resources/helloworldwsclient5.composite
@@ -0,0 +1,33 @@
+<?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://helloworld"
+	xmlns:hw="http://helloworld"
+	name="helloworldwsclient">
+    
+    <!-- A component representing the client program -->
+    <component name="HelloWorldClient5">
+      <implementation.java class="helloworld.HelloWorldClient5"/>
+      <reference name="helloWorldService">
+        <binding.ws wsdlElement="http://helloworld#wsdl.port(HelloWorldService/HelloWorldSoapPort)"/>
+      </reference>
+    </component>
+
+</composite>
diff --git a/java/sca/samples/pom.xml b/java/sca/samples/pom.xml
index 7cad1fd17d..5176eab59f 100644
--- a/java/sca/samples/pom.xml
+++ b/java/sca/samples/pom.xml
@@ -49,6 +49,7 @@
                 <module>binding-notification-consumer</module>
                 <module>binding-notification-producer</module>
                 <module>calculator</module>
+                <module>calculator-lean</module>
                 <module>calculator-distributed</module>
 		<module>calculator-implementation-policies</module>
                 <module>calculator-rmi-reference</module>