Bonus example of Proxy doctor for Proxy pattern

premaseem · premaseem · commit 09c6197a6b8f · 2018-02-17T23:08:50.000-06:00
diff --git a/patternBonus/src/me/premaseem/proxy/proxyDoctor/ClientForProxyDoctor.java b/patternBonus/src/me/premaseem/proxy/proxyDoctor/ClientForProxyDoctor.java
@@ -0,0 +1,48 @@
+package me.premaseem.proxy.proxyDoctor;
+
+import java.util.Scanner;
+
+public class ClientForProxyDoctor {
+
+	public static void main(String[] args) {
+
+		System.out.println("Welcome to Proxy Doctor Hospital ");
+
+		Doctor doctor = new ProxyDoctor();
+		Scanner scan = new Scanner(System.in);
+		int repeatRunFlag = 1;
+		while (repeatRunFlag == 1) {
+			System.out.println("What do you want from doctor ");
+			System.out.println(" Press 1 for general checkup");
+			System.out.println(" Press 2 for Surgery and operation ");
+			System.out.println(" Press 3 for testing report and surgery ");
+
+			int type = scan.nextInt();
+
+			switch (type) {
+			case 1:
+				doctor.doGeneralCheckup();
+				break;
+			case 2:
+				doctor.doOperationAndSurgery();
+				break;
+			case 3:
+				doctor.provideSummaryandReport();
+				break;
+			}
+			
+			System.out.println("=============================");
+
+			System.out.println("Press 1 for further treatment and 0 for EXIT .... ");
+			try {
+				repeatRunFlag = scan.nextInt();
+			} catch (Exception e) {
+				repeatRunFlag = 0;
+			}
+
+		}
+
+		System.out.println("\n $$$$$$$$$$$$$$$$$$$$  Thanks by Prem Aseem $$$$$$$$$$$$$$$$$$$$$$ \n ");
+
+	}
+}
diff --git a/patternBonus/src/me/premaseem/proxy/proxyDoctor/Doctor.java b/patternBonus/src/me/premaseem/proxy/proxyDoctor/Doctor.java
@@ -0,0 +1,44 @@
+package me.premaseem.proxy.proxyDoctor;
+
+public abstract class Doctor {
+
+	void doGeneralCheckup() {
+		new HospitalService().callNurse();
+	}
+
+	abstract void doOperationAndSurgery();
+
+	void provideSummaryandReport() {
+		new HospitalService().generateSummaryRepor();
+	}
+}
+
+class RealDoctor extends Doctor {
+
+	@Override
+	void doOperationAndSurgery() {
+		System.out.println("Real doctor doing operation");
+
+	}
+
+}
+
+class ProxyDoctor extends Doctor {
+	Doctor realDoctor = null;
+
+	void doGeneralCheckup() {
+		if (realDoctor != null) {
+			realDoctor.doGeneralCheckup();
+		} else {
+			new HospitalService().callNurse();
+		}
+	}
+
+	@Override
+	void doOperationAndSurgery() {
+		System.out.println("Since proxy doctor cannot handle this operation he is invoking real doctor ");
+		realDoctor = new RealDoctor();
+		realDoctor.doOperationAndSurgery();
+	}
+
+}
diff --git a/patternBonus/src/me/premaseem/proxy/proxyDoctor/HospitalService.java b/patternBonus/src/me/premaseem/proxy/proxyDoctor/HospitalService.java
@@ -0,0 +1,13 @@
+package me.premaseem.proxy.proxyDoctor;
+
+public class HospitalService {
+
+	public void callNurse() {
+		System.out.println("Doing the basic check up and like BP, breathing etc");
+	}
+
+	public void generateSummaryRepor(){
+		System.out.println("Call pathology and generate reports ");
+	}
+	
+}
