Input Normalization

A data pipeline often starts by trimming and reshaping input into predictable fields.

InputNormalization.java

public class InputNormalization {
    record UserLabel(String displayName, String slug) {}

    static UserLabel normalize(String rawName) {
        String trimmed = rawName.trim();
        String displayName = trimmed.replaceAll("\\s+", " ");
        String slug = displayName.toLowerCase().replaceAll("\\s+", "-");
        return new UserLabel(displayName, slug);
    }

    public static void main(String[] args) {
        String rawName = ;
        UserLabel label = normalize(rawName);

        System.out.println("name=" + label.displayName());
        System.out.println("slug=" + label.slug());
    }
}

public class InputNormalization {
    record UserLabel(String displayName, String slug) {}

    static UserLabel normalize(String rawName) {
        String trimmed = rawName.trim();
        String displayName = trimmed.replaceAll("\\s+", " ");
        String slug = displayName.toLowerCase().replaceAll("\\s+", "-");
        return new UserLabel(displayName, slug);
    }

    public static void main(String[] args) {
        String rawName = ;
        UserLabel label = normalize(rawName);

        System.out.println("name=" + label.displayName());
        System.out.println("slug=" + label.slug());
    }
}

public class InputNormalization {
    record UserLabel(String displayName, String slug) {}

    static UserLabel normalize(String rawName) {
        String trimmed = rawName.trim();
        String displayName = trimmed.replaceAll("\\s+", " ");
        String slug = displayName.toLowerCase().replaceAll("\\s+", "-");
        return new UserLabel(displayName, slug);
    }

    public static void main(String[] args) {
        String rawName = ;
        UserLabel label = normalize(rawName);

        System.out.println("name=" + label.displayName());
        System.out.println("slug=" + label.slug());
    }
}

normalization Normalizing input once gives later pipeline stages a cleaner value to use.

derived field The slug is derived from the display name, so it stays consistent with the cleaned input.