Java15NanoTimer.java

/*
 *
 * Copyright (c) void.fm
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 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
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 * Redistributions of source code must retain the above copyright notice, this list
 * of conditions and the following disclaimer.
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 * Redistributions in binary form must reproduce the above copyright notice, this
 * list of conditions and the following disclaimer in the documentation and/or
 * other materials provided with the distribution.
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 * used to endorse or promote products derived from this software without specific
 * prior written permission.
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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package etm.core.timer;

import etm.core.metadata.TimerMetaData;

/**
 * The Java15NanoTimer uses the new JDK 1.5 System.nanotime.
 *
 * @author void.fm
 * @version $Revision$
 */
public class Java15NanoTimer implements ExecutionTimer {
  private static final long DEFAULT_TICKS_PER_SECOND = 1000000000L;
  private static final String DESCRIPTION = "Java VM 1.5 System NanoTimer";

  public Java15NanoTimer() {
    // ensure we fail early
    System.nanoTime();
  }

  public long getCurrentTime() {
    return System.nanoTime();
  }

  public long getTicksPerSecond() {
    return DEFAULT_TICKS_PER_SECOND;
  }

  public String toString() {
    return getClass().getName();
  }

  public TimerMetaData getMetaData() {
    return new TimerMetaData(Java15NanoTimer.class,
      DESCRIPTION,
      getTicksPerSecond()
    );
  }
}