@opentelemetry/sdk-metrics
Version:
140 lines • 5.11 kB
JavaScript
;
/*
* Copyright The OpenTelemetry Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.isObservableInstrument = exports.ObservableUpDownCounterInstrument = exports.ObservableGaugeInstrument = exports.ObservableCounterInstrument = exports.ObservableInstrument = exports.HistogramInstrument = exports.GaugeInstrument = exports.CounterInstrument = exports.UpDownCounterInstrument = exports.SyncInstrument = void 0;
const api_1 = require("@opentelemetry/api");
const core_1 = require("@opentelemetry/core");
class SyncInstrument {
_writableMetricStorage;
_descriptor;
constructor(writableMetricStorage, descriptor) {
this._writableMetricStorage = writableMetricStorage;
this._descriptor = descriptor;
}
_record(value, attributes = {}, context = api_1.context.active()) {
if (typeof value !== 'number') {
api_1.diag.warn(`non-number value provided to metric ${this._descriptor.name}: ${value}`);
return;
}
if (this._descriptor.valueType === api_1.ValueType.INT &&
!Number.isInteger(value)) {
api_1.diag.warn(`INT value type cannot accept a floating-point value for ${this._descriptor.name}, ignoring the fractional digits.`);
value = Math.trunc(value);
// ignore non-finite values.
if (!Number.isInteger(value)) {
return;
}
}
this._writableMetricStorage.record(value, attributes, context, (0, core_1.millisToHrTime)(Date.now()));
}
}
exports.SyncInstrument = SyncInstrument;
/**
* The class implements {@link UpDownCounter} interface.
*/
class UpDownCounterInstrument extends SyncInstrument {
/**
* Increment value of counter by the input. Inputs may be negative.
*/
add(value, attributes, ctx) {
this._record(value, attributes, ctx);
}
}
exports.UpDownCounterInstrument = UpDownCounterInstrument;
/**
* The class implements {@link Counter} interface.
*/
class CounterInstrument extends SyncInstrument {
/**
* Increment value of counter by the input. Inputs may not be negative.
*/
add(value, attributes, ctx) {
if (value < 0) {
api_1.diag.warn(`negative value provided to counter ${this._descriptor.name}: ${value}`);
return;
}
this._record(value, attributes, ctx);
}
}
exports.CounterInstrument = CounterInstrument;
/**
* The class implements {@link Gauge} interface.
*/
class GaugeInstrument extends SyncInstrument {
/**
* Records a measurement.
*/
record(value, attributes, ctx) {
this._record(value, attributes, ctx);
}
}
exports.GaugeInstrument = GaugeInstrument;
/**
* The class implements {@link Histogram} interface.
*/
class HistogramInstrument extends SyncInstrument {
/**
* Records a measurement. Value of the measurement must not be negative.
*/
record(value, attributes, ctx) {
if (value < 0) {
api_1.diag.warn(`negative value provided to histogram ${this._descriptor.name}: ${value}`);
return;
}
this._record(value, attributes, ctx);
}
}
exports.HistogramInstrument = HistogramInstrument;
class ObservableInstrument {
/** @internal */
_metricStorages;
/** @internal */
_descriptor;
_observableRegistry;
constructor(descriptor, metricStorages, observableRegistry) {
this._descriptor = descriptor;
this._metricStorages = metricStorages;
this._observableRegistry = observableRegistry;
}
/**
* @see {Observable.addCallback}
*/
addCallback(callback) {
this._observableRegistry.addCallback(callback, this);
}
/**
* @see {Observable.removeCallback}
*/
removeCallback(callback) {
this._observableRegistry.removeCallback(callback, this);
}
}
exports.ObservableInstrument = ObservableInstrument;
class ObservableCounterInstrument extends ObservableInstrument {
}
exports.ObservableCounterInstrument = ObservableCounterInstrument;
class ObservableGaugeInstrument extends ObservableInstrument {
}
exports.ObservableGaugeInstrument = ObservableGaugeInstrument;
class ObservableUpDownCounterInstrument extends ObservableInstrument {
}
exports.ObservableUpDownCounterInstrument = ObservableUpDownCounterInstrument;
function isObservableInstrument(it) {
return it instanceof ObservableInstrument;
}
exports.isObservableInstrument = isObservableInstrument;
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