Review

class TimeLimitingCollector {
  /**
   * Calls {@link Collector#collect(int)} on the decorated {@link Collector}
   * unless the allowed time has passed, in which case it throws an exception.
   * 
   * @throws TimeExceededException
   *           if the time allowed has exceeded.
   */
  public void collect(final int doc) throws IOException {
    long time = TIMER_THREAD.getMilliseconds();
    if (timeout < time) {
      if (greedy) {
        //System.out.println(this+"  greedy: before failing, collecting doc: "+doc+"  "+(time-t0));
        collector.collect(doc);
      }
      //System.out.println(this+"  failing on:  "+doc+"  "+(time-t0));
      throw new TimeExceededException( timeout-t0, time-t0, doc );
    }
    //System.out.println(this+"  collecting: "+doc+"  "+(time-t0));
    collector.collect(doc);
  }

}