#format java
/** 
 * PrototypePattern Example
 */

import java.util.*;

interface Product extends Cloneable {
    public abstract void use(String s);
    public abstract Product createClone();
}

class Manager {
    private Hashtable showcase = new Hashtable();
    public void register(String name, Product proto) {
        showcase.put(name, proto);
    }
    public Product create(String protoname) {
        Product p = (Product)showcase.get(protoname);
        return p.createClone();
    }
}

class MessageBox implements Product {
    private char decochar;
    public MessageBox(char decochar) {
        this.decochar = decochar;
    }
    public void use(String s) {
        int length = s.getBytes().length;
        for(int i=0; i < length+4; i++) {
            System.out.print(decochar);
        }
        System.out.println("");
        System.out.println(decochar+" "+s+" "+decochar);
        for(int i=0; i < length+4; i++) {
            System.out.print(decochar);
        }
        System.out.println("");
    }
    public Product createClone() {
        Product p = null;
        try {
            p = (Product)clone();
        } catch(CloneNotSupportedException e) {
            e.printStackTrace();
        }
        return p;
    }
}

class UnderlinePen implements Product {
    private char ulchar;
    public UnderlinePen(char ulchar) {
        this.ulchar = ulchar;
    }
    public void use(String s) {
        int length = s.getBytes().length;
        System.out.println("\""+s+"\"");
        System.out.print(" ");
        for(int i=0; i < length; i++) {
            System.out.print(ulchar);
        }
        System.out.println("");
    }
    public Product createClone() {
        Product p = null;
        try {
            p = (Product)clone();
        } catch(CloneNotSupportedException e) {
            e.printStackTrace();
        }
        return p;
    }
}

public class PrototypeDisplay {
    public static void main(String[] args) {
        Manager manager = new Manager();
        UnderlinePen upen = new UnderlinePen('~');
        MessageBox mbox = new MessageBox('*');
        MessageBox sbox = new MessageBox('/');
        manager.register("strong message", upen);
        manager.register("warning box", mbox);
        manager.register("slash box", sbox);

        Product p1 = manager.create("strong message");
        p1.use("Hello, world.");
        Product p2 = manager.create("warning box");
        p2.use("Warning");
        Product p3 = manager.create("slash box");
        p3.use("Slash");
    }
}