| /* |
| * 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.rmi; |
| |
| import java.io.Serializable; |
| import java.rmi.Remote; |
| import java.rmi.RemoteException; |
| import java.rmi.registry.LocateRegistry; |
| import java.rmi.registry.Registry; |
| import java.rmi.server.UnicastRemoteObject; |
| |
| /** |
| * |
| */ |
| public class OperationsRMIServer implements OperationsRemote, Serializable { |
| |
| private static final long serialVersionUID = 6081008315263103012L; |
| private transient Registry registry; |
| |
| public OperationsRMIServer() throws RemoteException { |
| super(); |
| } |
| |
| public double add(double n1, double n2) { |
| return n1 + n2; |
| } |
| |
| public double subtract(double n1, double n2) { |
| return n1 - n2; |
| } |
| |
| public double divide(double n1, double n2) { |
| return n1 / n2; |
| } |
| |
| public double multiply(double n1, double n2) { |
| return n1 * n2; |
| } |
| |
| public void start() throws RemoteException { |
| Thread thread = new Thread() { |
| public void run() { |
| try { |
| System.out.println("Starting the RMI server for calculator operations..."); |
| Remote stub = UnicastRemoteObject.exportObject(OperationsRMIServer.this); |
| registry = LocateRegistry.createRegistry(8085); |
| registry.bind("AddService", stub); |
| registry.bind("SubtractService", stub); |
| registry.bind("MultiplyService", stub); |
| registry.bind("DivideService", stub); |
| System.out.println("RMI server for calculator operations is now started."); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| } |
| }; |
| thread.start(); |
| } |
| |
| public void stop() { |
| if (registry != null) { |
| try { |
| registry.unbind("AddService"); |
| registry.unbind("SubtractService"); |
| registry.unbind("MultiplyService"); |
| registry.unbind("DivideService"); |
| UnicastRemoteObject.unexportObject(this, false); |
| UnicastRemoteObject.unexportObject(registry, false); |
| registry = null; |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| } |
| } |
| |
| } |