1/*
2 * Copyright (C) 2010 Google Inc.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package examples;
18
19import com.google.caliper.Benchmark;
20import com.google.caliper.Param;
21
22import java.security.MessageDigest;
23
24/**
25 * Times creating new MessageDigest instances.
26 */
27public class MessageDigestCreationBenchmark {
28  // By default, just the "interesting ones". Also consider Adler32 and CRC32,
29  // but these are not guaranteed to be supported in all runtime environments.
30  @Param({"MD5", "SHA-1", "SHA-256", "SHA-512"})
31  String algorithm;
32
33  @Benchmark void time(int reps) throws Exception {
34    // Change this to use a dummy if the results look suspicious.
35    for (int i = 0; i < reps; i++) {
36      MessageDigest.getInstance(algorithm);
37    }
38  }
39}
40