ada6b7e57e
For the ease of code reviews, this only includes minimal code from MetricPoint, GoogleBenchmarksParser, and their unit tests. See go/flutter-metrics-center-migration for the overall plan.
55 lines
1.6 KiB
Dart
55 lines
1.6 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:collection';
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import 'dart:convert';
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import 'package:crypto/crypto.dart';
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import 'package:equatable/equatable.dart';
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/// Common format of a metric data point.
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class MetricPoint extends Equatable {
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MetricPoint(
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this.value,
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Map<String, String> tags,
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) : _tags = SplayTreeMap<String, String>.from(tags);
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/// Can store integer values.
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final double value;
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/// Test name, unit, timestamp, configs, git revision, ..., in sorted order.
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UnmodifiableMapView<String, String> get tags =>
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UnmodifiableMapView<String, String>(_tags);
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/// Unique identifier for updating existing data point.
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///
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/// We shouldn't have to worry about hash collisions until we have about
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/// 2^128 points.
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///
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/// This id should stay constant even if the [tags.keys] are reordered.
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/// (Because we are using an ordered SplayTreeMap to generate the id.)
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String get id => sha256.convert(utf8.encode('$_tags')).toString();
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@override
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String toString() {
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return 'MetricPoint(value=$value, tags=$_tags)';
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}
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final SplayTreeMap<String, String> _tags;
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@override
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List<Object> get props => <Object>[value, tags];
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}
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/// Some common tag keys
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const String kGithubRepoKey = 'gitRepo';
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const String kGitRevisionKey = 'gitRevision';
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const String kUnitKey = 'unit';
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const String kNameKey = 'name';
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const String kSubResultKey = 'subResult';
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/// Known github repo
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const String kFlutterFrameworkRepo = 'flutter/flutter';
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const String kFlutterEngineRepo = 'flutter/engine';
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