!636

!standard functions

!quicknew

abstract class Predict {

  abstract String predict(List<String> history); // it's passed in reverse

}

main {

  static class PLast extends Predict {

    String predict(List<String> history) {

      return history.isEmpty() ? "" : history.get(0);

    }

  }

  psvm {

    // example line: 2015-08-12 05:29:10 - http://tinybrain.de:8080/tb/my-actions.php

    String src = loadSnippet("#2000518");

    new List<String> actions;

    for (String line : toLines(src)) {

      int i = line.indexOf(" - http:");

      if (i >= 0)

        actions.add(line.substring(i+3).trim());

    }

    //System.out.println(actions);

    new List<Predict> predictors;

    predictors.add(new PLast);

    new Collector globalCollector;

    for (int splitPoint = 0; splitPoint < actions.size()-1; splitPoint++) {

      List<String> history = actions.subList(splitPoint+1, actions.size());

      String current = actions.get(splitPoint);

      //new Collector collector;

      for (Predict p : predictors) {

        String prediction = "";

        try {

          prediction = p.predict(history);

        } catch (Throwable e) {

          // silent exception

        }

        int score = current.equals(prediction) ? 1 : 0;

        //collector.add(p, prediction, score, splitPoint);

        globalCollector.add(p, prediction, score, splitPoint);              }

    }

  }

  static class Collector {

    new (Hash)Map<Predict, Integer> scores;

    void add(Predict p, String prediction, int score, int splitPoint) {

      Integer score = scores.get(p);

      score = (score == null ? 0 : score) + score;

      scores.put(p, score);

    }

  }

}