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// Burton Computer Corporation
// http://www.burton-computer.com
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package org.javimmutable.collections.hash;

import org.javimmutable.collections.JImmutableMap;

import java.util.Random;

public final class TimingLoop
{
    private TimingLoop()
    {
    }

    public static void main(String[] args)
    {
        final int maxLoops = 250000;
        final int maxKey = 999999999;
        final int maxValue = 999999999;
        Random random = new Random(1000);
        int adds = 0;
        int removes = 0;
        int gets = 0;
        long startPer = System.currentTimeMillis();
        JImmutableMap map = JImmutableHashMap.of();
        for (int i = 1; i <= maxLoops; ++i) {
            int command = random.nextInt(8);
            if (command <= 1) {
                Integer key = random.nextInt(maxKey);
                Integer value = random.nextInt(maxValue);
                map = map.assign(key, value);
                adds += 1;
            } else if (command == 2) {
                Integer key = random.nextInt(maxKey);
                map = map.delete(key);
                removes += 1;
            } else {
                Integer key = random.nextInt(maxKey);
                map.find(key);
                gets += 1;
            }
        }
        long endPer = System.currentTimeMillis();
        System.out.printf("phm adds %d removes %d gets %d elapsed %d%n", adds, removes, gets, (endPer - startPer));
    }
}