Either Utility for Play framework F.java

EitherUtil.java

package libs.f;

import static play.libs.F.Option.*;
import play.libs.F.Either;
import play.libs.F.Option;

/**
 * Either Utility for Play framework F.java
 * 
 * @author kazuhiro hara (http://greative.jp)
 */
public class EitherUtil {

    /**
     * Make both same type Either
     * @param error Error value
     * @param result Success value
     * @param <A> Any type
     * @return
     */
    public static <A> Either<A, A> apply(A error, Option<A> result) {
        if(result.isDefined()) {
            return Either.Right(result.get());
        } else {
            return Either.Left(error);
        }
    }

    /**
     * Get result all content. (ex. Result
     * @param result Either value
     * @param <A> Any type
     * @return
     */
    public static <A> Option<A> getResult(Either<A, A> result) {
        if(result.right.isDefined()) {
            return result.right;
        }
        if(result.left.isDefined()) {
            return result.left;
        } else {
            return None();
        }
    }
    
}