HEALTH ADMINISTRATION

 

                                            HEALTH ADMINISTRATION USING RMI

1.RMI Interface – HealthService.java

import java.rmi.Remote;

import java.rmi.RemoteException;

public interface HealthService extends Remote {

    String registerPatient(String name, int age, String condition) throws RemoteException;

    String getPatientInfo(String name) throws RemoteException;

}

2.Implementation of the service – HealthServiceImpl.java 

import java.rmi.server.UnicastRemoteObject;

import java.rmi.RemoteException;

import java.util.HashMap;

public class HealthServiceImpl extends UnicastRemoteObject implements HealthService {

    private HashMap<String, String> patientRecords;

    protected HealthServiceImpl() throws RemoteException {

        super();

        patientRecords = new HashMap<>();

    }

    public String registerPatient(String name, int age, String condition) throws RemoteException {

        String record = "Name: " + name + ", Age: " + age + ", Condition: " + condition;

        patientRecords.put(name, record);

        return "Patient " + name + " registered successfully.";

    }

    public String getPatientInfo(String name) throws RemoteException {

        return patientRecords.getOrDefault(name, "Patient not found.");

    }

}

3.RMI server to bind the service – Server.java 

import java.rmi.registry.LocateRegistry;

import java.rmi.registry.Registry;

public class Server {

    public static void main(String[] args) {

        try {

            HealthService service = new HealthServiceImpl();

            Registry registry = LocateRegistry.createRegistry(1099);

            registry.rebind("HealthService", service);

            System.out.println("Health Service is running...");

        } catch (Exception e) {

            e.printStackTrace();

        }

    }

}

4.Client to access the remote service – Client.java 

import java.rmi.registry.LocateRegistry;

import java.rmi.registry.Registry;

public class Client {

    public static void main(String[] args) {

        try {

            Registry registry = LocateRegistry.getRegistry("localhost", 1099);

            HealthService service = (HealthService) registry.lookup("HealthService");

            System.out.println(service.registerPatient("John Doe", 30, "Flu"));

            System.out.println(service.getPatientInfo("John Doe"));

        } catch (Exception e) {

            e.printStackTrace();

        }

    }

}

5.Expected Output

Server

Client