Kashub's Code Barn - "hello world 2"

INTERFACE MessageStrategy {
    PUBLIC void sendMessage();
}
 
abstract class AbstractStrategyFactory {
    PUBLIC abstract MessageStrategy createStrategy(MessageBody mb);
}
 
class MessageBody {
    Object payload;
 
    PUBLIC Object getPayload() {
        RETURN payload;
    }
 
    PUBLIC void configure(Object obj) {
        payload = obj;
    }
 
    PUBLIC void send(MessageStrategy ms) {
        ms.sendMessage();
    }
}
 
class DefaultFactory EXTENDS AbstractStrategyFactory {
    PRIVATE DefaultFactory() {
        ;
    }
 
    static DefaultFactory instance;
 
    PUBLIC static AbstractStrategyFactory getInstance() {
        IF (instance == NULL)
            instance = NEW DefaultFactory();
 
        RETURN instance;
    }
 
    PUBLIC MessageStrategy createStrategy(final MessageBody mb) {
        RETURN NEW MessageStrategy() {
            MessageBody BODY = mb;
 
            PUBLIC void sendMessage() {
                Object obj = BODY.getPayload();
                SYSTEM.OUT.println((String) obj);
            }
        };
    }
}
 
PUBLIC class HelloWorld {
    PUBLIC static void main(String[] args) {
        MessageBody mb = NEW MessageBody();
        mb.configure("Hello World!");
        AbstractStrategyFactory asf = DefaultFactory.getInstance();
        MessageStrategy strategy = asf.createStrategy(mb);
        mb.send(strategy);
    }
}

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