Timer Table : Timer « Core Class « Android

1. Android
2. Core Class
3. Timer

Timer Table

   

import java.util.HashMap;

class MyTimer {
  // WARNING: HashMap is not thread-safe (not syncronized)
  static private HashMap<String, MyTimer> timers = new HashMap<String, MyTimer>();
  
  private String name = null;

  private long startedAt;
  private long elapsedTimeInMS = 0;
  
  
  static public MyTimer get(String name) {
    MyTimer timer;
    if (timers.containsKey(name)) {
      timer = timers.get(name);
    } else {
      timer = new MyTimer(name);
      timers.put(name, timer);
    }
    return timer;
  }
  
  
  /**
   * If given a name the timer will be save in the list
   * @param name
   * @return
   */
  static public MyTimer start(String name) {
    MyTimer timer = get(name);
    timer.start();
    return timer;
  }
  
  static public MyTimer resume(String name) {
    MyTimer timer = get(name);
    timer.resume();
    return timer;
  }
  
  static public MyTimer stop(String name) {
    MyTimer timer = get(name);
    timer.stop();
    return timer;
  }
  
  static public MyTimer remove(String name) {
    return timers.remove(name);
  }

  
  // Private constructor prevents instantiation
  private MyTimer(String name) {
    this.name = name;
  }
  
  public void start() {
    this.elapsedTimeInMS = 0;
    this.startedAt = System.currentTimeMillis();
  }
  
  public void resume() {
    this.startedAt = System.currentTimeMillis();
  }
  
  /**
   * @return elapsedTimeInMS
   */
  public long stop() {
    this.elapsedTimeInMS += (System.currentTimeMillis() - this.startedAt);
    return this.elapsedTimeInMS;
  }
  
  public long ms() {
    return this.elapsedTimeInMS;
  }
  
  public float seconds() {
    return this.elapsedTimeInMS / 1000F;
  }
  
  public String name() { return this.name; }
  
  /**
   * Adds the value of another timer to this one
   * @param otherTimer
   */
  public MyTimer add(MyTimer otherTimer) {
    this.elapsedTimeInMS += otherTimer.ms();
    return this;
  }
  
  public MyTimer add(String name) {
    this.elapsedTimeInMS += get(name).ms();
    return this;
  }
  
  public String toString() {
    return Float.toString(seconds()) + "s";
  }
}

   
    
    
  

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