Conductor.java example

Explorer
open-mika-master
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package wonka.test;

import java.util.Vector;

class Conductor extends Thread {

  public char nowPlaying;
  public Carillon carillon;

  private Vector words;
  private String sequence;
  private int slotNumber;
  private int numberOfSlots;
  private int tally;
  private int bucket;

  public Conductor(Carillon carillon, Vector words, String s) {
    super(carillon,"Conductor");
    this.carillon = carillon;
    this.words = words;
    this.sequence = s;
    numberOfSlots = s.length();
    nowPlaying = sequence.charAt(0);
    String theWord = (String)words.elementAt(0);
  }

  synchronized void next() {
    ++slotNumber;

    if(slotNumber==numberOfSlots) {
      System.out.println(++tally);
      slotNumber = 0;
      this.interrupt();
      carillon.checkForTermination(tally);
    }
    nowPlaying = sequence.charAt(slotNumber);

//    String theWord = (String)words.elementAt(slotNumber);
//    synchronized (theWord) {
//      theWord.notifyAll();
//    }
  }

  public void run() {
    String theWord = (String)words.elementAt(0);
    synchronized (theWord) {
      theWord.notifyAll();
    }

    ThreadGroup tg = this.getThreadGroup();
    for(;;) {
      try {
        Thread.sleep(60000);
        System.err.println(tg+": watchdog timer expired! Leaky bucket = "+bucket);
        if (bucket > 10) {
          bucket -= 10;
        }
        else {
          tg.stop();
        }
      }
      catch (InterruptedException e) {
        ++bucket;
      }
    }
  }

}