From bdd0a41aed7edf21ec2a65cfa17a86af2ef8c48a Mon Sep 17 00:00:00 2001 From: dims Date: Tue, 17 Jun 2008 00:23:01 +0000 Subject: Move Tuscany from Incubator to top level. git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@668359 13f79535-47bb-0310-9956-ffa450edef68 --- java/sca/samples/calculator-rmi-reference/README | 138 +++++++ .../sca/samples/calculator-rmi-reference/build.xml | 73 ++++ .../calculator-rmi-reference.png | Bin 0 -> 23615 bytes .../calculator-rmi-reference.svg | 412 +++++++++++++++++++++ java/sca/samples/calculator-rmi-reference/pom.xml | 68 ++++ .../src/main/java/calculator/AddService.java | 28 ++ .../src/main/java/calculator/CalculatorClient.java | 44 +++ .../main/java/calculator/CalculatorService.java | 39 ++ .../java/calculator/CalculatorServiceImpl.java | 68 ++++ .../src/main/java/calculator/DivideService.java | 28 ++ .../src/main/java/calculator/MultiplyService.java | 28 ++ .../src/main/java/calculator/SubtractService.java | 28 ++ .../resources/CalculatorRMIReference.composite | 42 +++ .../calculator/CalculatorRMIReferenceTestCase.java | 60 +++ .../java/calculator/CalculatorRMIServiceImpl.java | 52 +++ 15 files changed, 1108 insertions(+) create mode 100644 java/sca/samples/calculator-rmi-reference/README create mode 100644 java/sca/samples/calculator-rmi-reference/build.xml create mode 100644 java/sca/samples/calculator-rmi-reference/calculator-rmi-reference.png create mode 100644 java/sca/samples/calculator-rmi-reference/calculator-rmi-reference.svg create mode 100644 java/sca/samples/calculator-rmi-reference/pom.xml create mode 100644 java/sca/samples/calculator-rmi-reference/src/main/java/calculator/AddService.java create mode 100644 java/sca/samples/calculator-rmi-reference/src/main/java/calculator/CalculatorClient.java create mode 100644 java/sca/samples/calculator-rmi-reference/src/main/java/calculator/CalculatorService.java create mode 100644 java/sca/samples/calculator-rmi-reference/src/main/java/calculator/CalculatorServiceImpl.java create mode 100644 java/sca/samples/calculator-rmi-reference/src/main/java/calculator/DivideService.java create mode 100644 java/sca/samples/calculator-rmi-reference/src/main/java/calculator/MultiplyService.java create mode 100644 java/sca/samples/calculator-rmi-reference/src/main/java/calculator/SubtractService.java create mode 100644 java/sca/samples/calculator-rmi-reference/src/main/resources/CalculatorRMIReference.composite create mode 100644 java/sca/samples/calculator-rmi-reference/src/test/java/calculator/CalculatorRMIReferenceTestCase.java create mode 100644 java/sca/samples/calculator-rmi-reference/src/test/java/calculator/CalculatorRMIServiceImpl.java (limited to 'java/sca/samples/calculator-rmi-reference') diff --git a/java/sca/samples/calculator-rmi-reference/README b/java/sca/samples/calculator-rmi-reference/README new file mode 100644 index 0000000000..837b5ce75f --- /dev/null +++ b/java/sca/samples/calculator-rmi-reference/README @@ -0,0 +1,138 @@ +Calculator RMI Reference Sample +=============================== + +This sample illustrates the use of Tuscany RMI Binding to call reference +services that are hosted as Java RMI services. + +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, first +navigate to the calculator-rmi-service sample and do: + +ant run + +OR if you don't have ant, on Windows do + +java -cp ..\..\lib\tuscany-sca-manifest.jar;target\sample-calculator-rmi-service.jar calculator.CalculatorServer + +and on *nix do + +java -cp ../../lib/tuscany-sca-manifest.jar:target/sample-calculator-rmi-service.jar calculator.CalculatorServer + +Now you have the server running you need to open another 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-rmi-reference.jar calculator.CalculatorClient + +and on *nix do + +java -cp ../../lib/tuscany-sca-manifest.jar:target/sample-calculator-rmi-reference.jar calculator.CalculatorClient + +Sample Overview +--------------- +This sample extends the calculator sample by replacing the local wired +connections with RMI bindings. Instead of local add, subtract, multiply and +divide components, an RMI service implementation now provides the +add, subtract, multiply and divide interfaces and is hosted as an RMI server. +References specified in the .composite file include an RMI binding which targets +this RMI server. + +This sample adds a number of classes to the basic calculator sample: + +calculator-rmi-reference/ + src/ + main/ + java/ + calculator/ + CalculatorService.java - as calculator sample + AddService.java - as calculator sample + SubtractService.java - as calculator sample + MultipleService.java - as calculator sample + DivideService.java - as calculator sample + CalculatorClient.java - as calculator sample + CalculatorServiceImpl.java - calls the RMI service + that provides the target for the + RMI bindings in the composite + resources/ + CalculatorRMIReference.composite - the SCA assembly for this sample + test/ + java/ + calculator/ + CalculatorRMIReferenceTestCase.java - JUnit test case + CalculatorRMIServiceImpl.java - test RMI service to call + calculator-rmi-reference.png - a pictorial representation of the + .composite file + build.xml - the Ant build file for the client + pom.xml - the Maven build file + +Note. As this test creates and uses local network connections you may need to +configure your firewall, if you are running one, to allow the test to run +successfully. + +Building And Running The Sample Using Ant +----------------------------------------- +With the binary distribution the sample can be built and run using Ant. + +The server provides an RMI server that the acts as a target for the SCA RMI +bindings. Start a new console and use the following commands. + +cd calculator-rmi-service +ant compile +ant run + +This will run up the server and display the following. + +run: + [java] Starting of the SCA Calculator Application exposed as RMI Services... + [java] ...Press Enter to Exit... + +The client is very similar to the calculator sample. It starts the SCA runtime +and calls each of the calculator operations. In doing this the RMI bindings +make calls out to the RMI server you started in the previous step. Start +a new console and use the following commands. + +cd calculator-rmi-reference +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 + +If you now return to the console window running the server and press enter the +server should stop. + +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-rmi-reference +mvn + +You should see the following output from the test phase. + +------------------------------------------------------- + T E S T S +------------------------------------------------------- +Running calculator.CalculatorRMIReferenceTestCase +Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 5.308 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-rmi-reference/build.xml b/java/sca/samples/calculator-rmi-reference/build.xml new file mode 100644 index 0000000000..ca75625b42 --- /dev/null +++ b/java/sca/samples/calculator-rmi-reference/build.xml @@ -0,0 +1,73 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/java/sca/samples/calculator-rmi-reference/calculator-rmi-reference.png b/java/sca/samples/calculator-rmi-reference/calculator-rmi-reference.png new file mode 100644 index 0000000000..8c76b77a9f Binary files /dev/null and b/java/sca/samples/calculator-rmi-reference/calculator-rmi-reference.png differ diff --git a/java/sca/samples/calculator-rmi-reference/calculator-rmi-reference.svg b/java/sca/samples/calculator-rmi-reference/calculator-rmi-reference.svg new file mode 100644 index 0000000000..ba802e6717 --- /dev/null +++ b/java/sca/samples/calculator-rmi-reference/calculator-rmi-reference.svg @@ -0,0 +1,412 @@ + + + + + + + + + + image/svg+xml + + + + + + + + Calculator + + CalculatorServiceComponent + + + CalculatorService + CalculatorServiceRMIImpl + addService + subtractService + multiplyService + divideService + + + + + AddReference + SubtractReference + MultiplyReference + DivideReference + RMIRegistry + + + + + RMI RMI RMI RMI + diff --git a/java/sca/samples/calculator-rmi-reference/pom.xml b/java/sca/samples/calculator-rmi-reference/pom.xml new file mode 100644 index 0000000000..452662e7aa --- /dev/null +++ b/java/sca/samples/calculator-rmi-reference/pom.xml @@ -0,0 +1,68 @@ + + + + 4.0.0 + + org.apache.tuscany.sca + tuscany-sca + 1.4-SNAPSHOT + ../../pom.xml + + sample-calculator-rmi-reference + Apache Tuscany SCA Calculator RMI Reference Sample + + + + apache.incubator + http://people.apache.org/repo/m2-incubating-repository + + + + + + org.apache.tuscany.sca + tuscany-host-embedded + 1.4-SNAPSHOT + + + org.apache.tuscany.sca + tuscany-implementation-java-runtime + 1.4-SNAPSHOT + runtime + + + org.apache.tuscany.sca + tuscany-binding-rmi + 1.4-SNAPSHOT + runtime + + + junit + junit + 4.2 + test + + + + + ${artifactId} + + + diff --git a/java/sca/samples/calculator-rmi-reference/src/main/java/calculator/AddService.java b/java/sca/samples/calculator-rmi-reference/src/main/java/calculator/AddService.java new file mode 100644 index 0000000000..ec57a6a533 --- /dev/null +++ b/java/sca/samples/calculator-rmi-reference/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 interface for the add service + */ +public interface AddService { + + double add(double n1, double n2); + +} diff --git a/java/sca/samples/calculator-rmi-reference/src/main/java/calculator/CalculatorClient.java b/java/sca/samples/calculator-rmi-reference/src/main/java/calculator/CalculatorClient.java new file mode 100644 index 0000000000..cd1076c3f1 --- /dev/null +++ b/java/sca/samples/calculator-rmi-reference/src/main/java/calculator/CalculatorClient.java @@ -0,0 +1,44 @@ +/* + * 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.host.embedded.SCADomain; + +/** + * 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 { + SCADomain scaDomain = SCADomain.newInstance("CalculatorRMIReference.composite"); + CalculatorService calculatorService = + scaDomain.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)); + + scaDomain.close(); + + } + +} diff --git a/java/sca/samples/calculator-rmi-reference/src/main/java/calculator/CalculatorService.java b/java/sca/samples/calculator-rmi-reference/src/main/java/calculator/CalculatorService.java new file mode 100644 index 0000000000..d310dad4b1 --- /dev/null +++ b/java/sca/samples/calculator-rmi-reference/src/main/java/calculator/CalculatorService.java @@ -0,0 +1,39 @@ +/* + * 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.rmi.Remote; +import java.rmi.RemoteException; + +import org.osoa.sca.annotations.Remotable; + +/** + * The Calculator service interface. + */ +@Remotable +public interface CalculatorService extends Remote { + + double add(double n1, double n2) throws RemoteException; + + double subtract(double n1, double n2) throws RemoteException; + + double multiply(double n1, double n2) throws RemoteException; + + double divide(double n1, double n2) throws RemoteException; +} diff --git a/java/sca/samples/calculator-rmi-reference/src/main/java/calculator/CalculatorServiceImpl.java b/java/sca/samples/calculator-rmi-reference/src/main/java/calculator/CalculatorServiceImpl.java new file mode 100644 index 0000000000..f28f0ca179 --- /dev/null +++ b/java/sca/samples/calculator-rmi-reference/src/main/java/calculator/CalculatorServiceImpl.java @@ -0,0 +1,68 @@ +/* + * 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-rmi-reference/src/main/java/calculator/DivideService.java b/java/sca/samples/calculator-rmi-reference/src/main/java/calculator/DivideService.java new file mode 100644 index 0000000000..835e4fda6d --- /dev/null +++ b/java/sca/samples/calculator-rmi-reference/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 interface for the divide service + */ +public interface DivideService { + + double divide(double n1, double n2); + +} diff --git a/java/sca/samples/calculator-rmi-reference/src/main/java/calculator/MultiplyService.java b/java/sca/samples/calculator-rmi-reference/src/main/java/calculator/MultiplyService.java new file mode 100644 index 0000000000..db568cc762 --- /dev/null +++ b/java/sca/samples/calculator-rmi-reference/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-rmi-reference/src/main/java/calculator/SubtractService.java b/java/sca/samples/calculator-rmi-reference/src/main/java/calculator/SubtractService.java new file mode 100644 index 0000000000..30e4e6a56a --- /dev/null +++ b/java/sca/samples/calculator-rmi-reference/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 subtract service + */ +public interface SubtractService { + + double subtract(double n1, double n2); + +} diff --git a/java/sca/samples/calculator-rmi-reference/src/main/resources/CalculatorRMIReference.composite b/java/sca/samples/calculator-rmi-reference/src/main/resources/CalculatorRMIReference.composite new file mode 100644 index 0000000000..a5a6e1cd29 --- /dev/null +++ b/java/sca/samples/calculator-rmi-reference/src/main/resources/CalculatorRMIReference.composite @@ -0,0 +1,42 @@ + + + + + + + + + + + + + + + + + + + + + diff --git a/java/sca/samples/calculator-rmi-reference/src/test/java/calculator/CalculatorRMIReferenceTestCase.java b/java/sca/samples/calculator-rmi-reference/src/test/java/calculator/CalculatorRMIReferenceTestCase.java new file mode 100644 index 0000000000..15e00f5946 --- /dev/null +++ b/java/sca/samples/calculator-rmi-reference/src/test/java/calculator/CalculatorRMIReferenceTestCase.java @@ -0,0 +1,60 @@ +/* + * 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.rmi.registry.LocateRegistry; +import java.rmi.registry.Registry; + +import junit.framework.TestCase; + +import org.apache.tuscany.sca.host.embedded.SCADomain; + + +/** + * This shows how to test the Calculator service component. + */ +public class CalculatorRMIReferenceTestCase extends TestCase { + + private SCADomain scaDomain; + private CalculatorService calculatorService; + + @Override + protected void setUp() throws Exception { + CalculatorRMIServiceImpl rmiCalculatorImpl = new CalculatorRMIServiceImpl(); + Registry rmiRegistry = LocateRegistry.createRegistry(8099); + rmiRegistry.bind("CalculatorRMIService", rmiCalculatorImpl); + + scaDomain = SCADomain.newInstance("CalculatorRMIReference.composite"); + calculatorService = scaDomain.getService(CalculatorService.class, "CalculatorServiceComponent"); + } + + @Override + protected void tearDown() throws Exception { + scaDomain.close(); + LocateRegistry.getRegistry(8099).unbind("CalculatorRMIService"); + } + + 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/calculator-rmi-reference/src/test/java/calculator/CalculatorRMIServiceImpl.java b/java/sca/samples/calculator-rmi-reference/src/test/java/calculator/CalculatorRMIServiceImpl.java new file mode 100644 index 0000000000..d8ded42cb2 --- /dev/null +++ b/java/sca/samples/calculator-rmi-reference/src/test/java/calculator/CalculatorRMIServiceImpl.java @@ -0,0 +1,52 @@ +/* + * 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.rmi.RemoteException; +import java.rmi.server.UnicastRemoteObject; + + + +/** + * An implementation of the Calculator service. + */ +public class CalculatorRMIServiceImpl extends UnicastRemoteObject implements CalculatorService { + + private static final long serialVersionUID = -1543948944662001428L; + + public CalculatorRMIServiceImpl() throws RemoteException { + super(); + } + + public double add(double n1, double n2) throws RemoteException { + return n1 + n2; + } + + public double subtract(double n1, double n2) { + return n1 - n2; + } + + public double multiply(double n1, double n2) { + return n1 * n2; + } + + public double divide(double n1, double n2) { + return n1 / n2; + } +} -- cgit v1.2.3