Environment Class — netty Architecture

Source Code

microbench/src/main/java/io/netty/microbenchmark/common/IntObjectHashMapBenchmark.java lines 91–123

    private abstract class Environment {
        final int[] keys;
        Environment() {
            keys = new int[size];
            switch(keyDistribution) {
                case HTTP2:
                    for (int index = 0, key = 3; index < size; ++index, key += 2) {
                        keys[index] = key;
                    }
                    break;
                case RANDOM: {
                    // Create a 'size' # of random integers.
                    Random r = new Random();
                    Set<Integer> keySet = new HashSet<Integer>();
                    while (keySet.size() < size) {
                        keySet.add(r.nextInt());
                    }

                    int index = 0;
                    for (Integer key : keySet) {
                        keys[index++] = key;
                    }
                    break;
                }
                default: {
                    throw new IllegalStateException("Unknown keyDistribution: " + keyDistribution);
                }
            }
        }
        abstract void put(Blackhole bh);
        abstract void lookup(Blackhole bh);
        abstract void remove(Blackhole bh);
    }