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| 1 | +/* |
| 2 | + * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one |
| 3 | + * or more contributor license agreements. Licensed under the "Elastic License |
| 4 | + * 2.0", the "GNU Affero General Public License v3.0 only", and the "Server Side |
| 5 | + * Public License v 1"; you may not use this file except in compliance with, at |
| 6 | + * your election, the "Elastic License 2.0", the "GNU Affero General Public |
| 7 | + * License v3.0 only", or the "Server Side Public License, v 1". |
| 8 | + */ |
| 9 | + |
| 10 | +package org.elasticsearch.benchmark.xcontent; |
| 11 | + |
| 12 | +import org.elasticsearch.common.bytes.BytesReference; |
| 13 | +import org.elasticsearch.common.io.Streams; |
| 14 | +import org.elasticsearch.xcontent.XContentParser; |
| 15 | +import org.elasticsearch.xcontent.XContentParserConfiguration; |
| 16 | +import org.elasticsearch.xcontent.XContentType; |
| 17 | +import org.openjdk.jmh.annotations.Benchmark; |
| 18 | +import org.openjdk.jmh.annotations.BenchmarkMode; |
| 19 | +import org.openjdk.jmh.annotations.Fork; |
| 20 | +import org.openjdk.jmh.annotations.Level; |
| 21 | +import org.openjdk.jmh.annotations.Measurement; |
| 22 | +import org.openjdk.jmh.annotations.Mode; |
| 23 | +import org.openjdk.jmh.annotations.OutputTimeUnit; |
| 24 | +import org.openjdk.jmh.annotations.Scope; |
| 25 | +import org.openjdk.jmh.annotations.Setup; |
| 26 | +import org.openjdk.jmh.annotations.State; |
| 27 | +import org.openjdk.jmh.annotations.Warmup; |
| 28 | +import org.openjdk.jmh.infra.Blackhole; |
| 29 | + |
| 30 | +import java.io.IOException; |
| 31 | +import java.util.Arrays; |
| 32 | +import java.util.Collections; |
| 33 | +import java.util.List; |
| 34 | +import java.util.Map; |
| 35 | +import java.util.Random; |
| 36 | +import java.util.concurrent.TimeUnit; |
| 37 | +import java.util.stream.Collectors; |
| 38 | + |
| 39 | +@Fork(1) |
| 40 | +@Warmup(iterations = 5) |
| 41 | +@Measurement(iterations = 10) |
| 42 | +@BenchmarkMode(Mode.AverageTime) |
| 43 | +@OutputTimeUnit(TimeUnit.NANOSECONDS) |
| 44 | +@State(Scope.Thread) |
| 45 | +public class JsonParserBenchmark { |
| 46 | + private Map<String, BytesReference> sourceBytes; |
| 47 | + private BytesReference source; |
| 48 | + private Random random; |
| 49 | + private List<String> sourcesRandomized; |
| 50 | + |
| 51 | + final String[] sources = new String[] { "monitor_cluster_stats.json", "monitor_index_stats.json", "monitor_node_stats.json" }; |
| 52 | + |
| 53 | + @Setup(Level.Iteration) |
| 54 | + public void randomizeSource() { |
| 55 | + sourcesRandomized = Arrays.asList(sources); |
| 56 | + Collections.shuffle(sourcesRandomized, random); |
| 57 | + } |
| 58 | + |
| 59 | + @Setup(Level.Trial) |
| 60 | + public void setup() throws IOException { |
| 61 | + random = new Random(); |
| 62 | + sourceBytes = Arrays.stream(sources).collect(Collectors.toMap(s -> s, s -> { |
| 63 | + try { |
| 64 | + return readSource(s); |
| 65 | + } catch (IOException e) { |
| 66 | + throw new RuntimeException(e); |
| 67 | + } |
| 68 | + })); |
| 69 | + } |
| 70 | + |
| 71 | + @Benchmark |
| 72 | + public void parseJson(Blackhole bh) throws IOException { |
| 73 | + sourcesRandomized.forEach(source -> { |
| 74 | + try { |
| 75 | + final XContentParser parser = XContentType.JSON.xContent() |
| 76 | + .createParser(XContentParserConfiguration.EMPTY, sourceBytes.get(source).streamInput()); |
| 77 | + bh.consume(parser.mapOrdered()); |
| 78 | + } catch (IOException e) { |
| 79 | + throw new RuntimeException(e); |
| 80 | + } |
| 81 | + }); |
| 82 | + } |
| 83 | + |
| 84 | + private BytesReference readSource(String fileName) throws IOException { |
| 85 | + return Streams.readFully(JsonParserBenchmark.class.getResourceAsStream(fileName)); |
| 86 | + } |
| 87 | +} |
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