TimeUnit.java

/*
 * Class:        TimeUnit
 * Description:  Represents a time unit for conversion of time durations.
 * Environment:  Java
 * Software:     SSJ 
 * Copyright (C) 2001  Pierre L'Ecuyer and Universite de Montreal
 * Organization: DIRO, Universite de Montreal
 * @author       
 * @since
 *
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */
package umontreal.ssj.util;

public enum TimeUnit {


   NANOSECOND
 
   ("ns", "nanosecond", 1.0 / 3600000000000.0),

   MICROSECOND
 
   ("us", "microsecond", 1.0 / 3600000000.0),

   MILLISECOND
 
   ("ms", "millisecond", 1.0 / 3600000.0),

   SECOND
 
   ("s", "second", 1.0 / 3600.0),

   MINUTE
 
   ("min", "minute", 1.0 / 60.0),

   HOUR
 
   ("h", "hour", 1.0),

   DAY
 
   ("d", "day", 24.0),

   WEEK
 
   ("w", "week", 24.0 * 7);
 
   private String shortName;
   private String longName;
   private transient double numHours;
 
   private TimeUnit(String shortName, String longName, double numHours) {
      this.shortName = shortName;
      this.longName = longName;
      this.numHours = numHours;
   }


   public String getShortName() {
      return shortName;
   }

   public String getLongName() {
      return longName;
   }

   public String toString() {
      return longName;
   }

   public double getHours() {
      return numHours;
   }

   public static double convert(double value, TimeUnit srcUnit, TimeUnit dstUnit) {
      double hours = value * srcUnit.getHours();
      return hours / dstUnit.getHours();
   }
}