package org.kuali.common.jute.base;
   
   import static com.google.common.base.Stopwatch.createStarted;
   import static java.util.concurrent.TimeUnit.MILLISECONDS;
   
   import java.util.concurrent.TimeUnit;
   
   import com.google.common.base.Stopwatch;
   
  /**
   * Threadsafe stopwatch that begins running as soon as it is constructed and never stops
   */
  public final class RunningStopwatch {
  
      public RunningStopwatch() {
          this.stopwatch = createStarted();
      }
  
      private final Stopwatch stopwatch;
  
      public long elapsedMillis() {
          return elapsed(MILLISECONDS);
      }
  
      public long elapsed(TimeUnit unit) {
          synchronized (stopwatch) {
              return stopwatch.elapsed(unit);
          }
      }
  
  }