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There is a newer version: 0.3.0

package io.silverspoon.bulldog.core;

import io.silverspoon.bulldog.core.util.BulldogUtil;

public enum Signal {
   High(1, true),
   Low(0, false);

   private int numericValue;
   private boolean booleanValue;

   Signal(int numericValue, boolean booleanValue) {
      this.numericValue = numericValue;
      this.booleanValue = booleanValue;
   }

   public int getNumericValue() {
      return numericValue;
   }

   public boolean getBooleanValue() {
      return booleanValue;
   }

   public static Signal fromNumericValue(int value) {
      if (value == 0) {
         return Signal.Low;
      }
      return Signal.High;
   }

   public static Signal fromBooleanValue(boolean value) {
      if (value) {
         return Signal.High;
      }
      return Signal.Low;
   }

   public static Signal fromString(String value) {
      if (value == null) {
         throw new IllegalArgumentException("value cannot be null!");
      }
      ;

      String interpretedValue = value.trim().toLowerCase();

      if (BulldogUtil.isStringNumeric(interpretedValue)) {
         if (Double.parseDouble(interpretedValue) == 0) {
            return Signal.Low;
         }
         return Signal.High;
      } else {
         if (interpretedValue.equals("low")) {
            return Signal.Low;
         } else if (interpretedValue.equals("high")) {
            return Signal.High;
         }
         ;

         throw new IllegalArgumentException(interpretedValue + " is not a valid value for a signal");
      }
   }

   public Signal inverse() {
      return this == Signal.High ? Signal.Low : Signal.High;
   }
}