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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.
*/
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();
}
}
}
}
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