Trancoder example - Java Flavour

Transcoding_ASCIIDecimalCodeTranscoderStrategy.java

package Transcoding;

public class ASCIIDecimalCodeTranscoderStrategy implements TranscoderStrategy {

    @Override
    public String transcode(String message) {
        return (message + ": to ASCII Code ");
    }
}

Transcoding_BrailleTranscoderStrategy.java

package Transcoding;

public class BrailleTranscoderStrategy implements TranscoderStrategy {
    @Override
    public String transcode(String message) {
        return (message+": to Brailling ");
    }
}

Transcoding_EncryptTranscoderStrategy.java

package Transcoding;

public class EncryptTranscoderStrategy implements TranscoderStrategy {

    @Override
    public String transcode(String message) {
        return (message+": to Encrypt code ");
    }
}

Transcoding_Main.java

package Transcoding;

public class Main {
    public static void main(String[] args) {
        TranscoderStrategy transcoderStrategies[] = {
                new BrailleTranscoderStrategy(),
                new EncryptTranscoderStrategy(),
                new MorseTranscoderStrategyStrategy()};

        TranscoderStrategy asciiDecimalCodeTranscoderStrategy = new ASCIIDecimalCodeTranscoderStrategy();

        TranscodingTextService transcodingTextService = new TranscodingTextService(asciiDecimalCodeTranscoderStrategy);

        String message = "Meessage to translate";
        System.out.println("TranscodingTextService is using the behavior injected by constructor...\n\t"+ transcodingTextService.execute(message));

        System.out.println("\nTranscodingTextService can change its behavior dinamicaly by setter...");
        for (int i = 0; i < transcoderStrategies.length; i++) {
            transcodingTextService.setTranscoderStrategy(transcoderStrategies[i]);
            String result = transcodingTextService.execute(message);
            System.out.println("\t" + result);
        }
    }
}

Transcoding_MorseTranscoderStrategyStrategy.java

package Transcoding;

public class MorseTranscoderStrategyStrategy implements TranscoderStrategy {
    @Override
    public String transcode(String message) {
        return (message + ": to Morse Code ");
    }
}

Transcoding_TranscoderStrategy.java

package Transcoding;

public interface TranscoderStrategy {
    public String transcode(String source);
}

Transcoding_TranscodingTextService.java

package Transcoding;

public class TranscodingTextService {
    private TranscoderStrategy transcoderStrategy;

    public TranscodingTextService(TranscoderStrategy transcoderStrategy) {
        this.transcoderStrategy = transcoderStrategy;
    }

    public String execute(String message) {
        return transcoderStrategy.transcode(message);
    }

    public void setTranscoderStrategy(TranscoderStrategy transcoderStrategy) {
        this.transcoderStrategy = transcoderStrategy;
    }
}