Java compareTo() in functional style

compareTo.java

import io.vavr.collection.Array;

import java.net.URI;
import java.util.Objects;
import java.util.function.IntSupplier;
import java.util.stream.Stream;

class Vocab implements Comparable<Vocab> {
  private final String prefix;
  private final URI uri;
  private final Array<String> terms;
  
  // ...
  
  @Override
  public int compareTo(Vocab o) {
    Objects.requireNonNull(o);
    if (o == this) {
      return 0;
    }

    return Stream.<IntSupplier>of(
      () -> prefix.compareTo(o.prefix),
      () -> uri.compareTo(o.uri),
      () -> Integer.compare(terms.length(), o.terms.length()),
      () -> terms.toStream().zip(o.terms.toStream())
        .toJavaStream()
        .mapToInt(t -> t._1.compareTo(t._2))
        .filter(i -> i != 0).findFirst().orElse(0)
    ).mapToInt(IntSupplier::getAsInt)
      .filter(i -> i != 0).findFirst().orElse(0);
  }

}