java - 次のチェーンを初期化するためにコンストラクターを使用して責任の連鎖を構築する方法は?

Question

チェーンを初期化するためにコンストラクターを使用して一連の責任を構築する方法。これは、 setNextメソッドを使用してチェーンを構築しているRunner.class です。

public class Runner {

private static final String ENTER_PATH = "Enter path: ";
private static final String FILTER_BY_NAME = "Filter by name? (0/1)";
private static final String ENTER_NAME_PARAMETER = "Enter name parameter please: ";
private static final String FILTER_BY_EXTENSION = "Filter by extension? (0/1)";
private static final String ENTER_EXTENSION_PARAMETER = "Enter extension please (without '.'): ";
private static final String FILTER_BY_SIZE = "Filter by size? (0/1)";
private static final String ENTER_SIZE_TO = "Enter upper limit searching files in kb";
private static final String ENTER_SIZE_FROM = "Enter lower limit searching files in kb";
private static final String TRUE="1";
private Scanner scanner;

private List<File> fileList;


public Runner() {
    this.scanner = new Scanner(System.in);
    this.fileList = new ArrayList<>();
}

private String getDirName(){
    System.out.println(ENTER_PATH);
    return scanner.nextLine();
}


private Handler getChainOfResponsibility(){
    GeneralHandler generalHandler = new GeneralHandler();
    Handler lastHandler = generalHandler;


    System.out.println(FILTER_BY_NAME);
    if (scanner.nextLine().equals(TRUE)) {
        System.out.println(ENTER_NAME_PARAMETER);
        String name = scanner.nextLine();
        Handler nameHandler = new NameHandler(name);
        lastHandler.setHandler(nameHandler);
        lastHandler = nameHandler;
    }

    System.out.println(FILTER_BY_EXTENSION);
    if (scanner.nextLine().equals(TRUE)) {
        System.out.println(ENTER_EXTENSION_PARAMETER);
        Handler extensionHandler = new ExtensionHandler(scanner.nextLine());
        lastHandler.setHandler(extensionHandler);
        lastHandler = extensionHandler;
    }


    System.out.println(FILTER_BY_SIZE);
    if (scanner.nextLine().equals(TRUE)) {
        System.out.println(ENTER_SIZE_FROM);
        double fromSize = scanner.nextDouble();
        System.out.println(ENTER_SIZE_TO);
        double toSize = scanner.nextDouble();
        Handler sizeHandler = new SizeHandler(fromSize, toSize);
        lastHandler.setHandler(sizeHandler);
    }
    return generalHandler;
}


public void run() throws InterruptedException, IOException {
    findAllFiles(getDirName(), getChainOfResponsibility());
    showListOfFilteredFiles();

}

これが私のHandler抽象クラスです

    public abstract class Handler {

    private Handler handler;

    public void setHandler(Handler handler) {
        this.handler = handler;
    }

    protected abstract boolean handleFilter(File file);

    public boolean doFilter(File file){
        if(handleFilter(file)){
            if(Objects.nonNull(handler)){
                return handler.doFilter(file);
            }
            return true;
        }
        return false;
    }

}

また、私はそれを実装しています。コンストラクタで初期化する方法！助けてください！