@opentelemetry/sdk-metrics
Version:
88 lines • 3.09 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.
*/
import { diag, ValueType, } from '@opentelemetry/api';
import { AttributeHashMap } from './state/HashMap';
import { isObservableInstrument } from './Instruments';
/**
* The class implements {@link ObservableResult} interface.
*/
export class ObservableResultImpl {
/**
* @internal
*/
_buffer = new AttributeHashMap();
_instrumentName;
_valueType;
constructor(instrumentName, valueType) {
this._instrumentName = instrumentName;
this._valueType = valueType;
}
/**
* Observe a measurement of the value associated with the given attributes.
*/
observe(value, attributes = {}) {
if (typeof value !== 'number') {
diag.warn(`non-number value provided to metric ${this._instrumentName}: ${value}`);
return;
}
if (this._valueType === ValueType.INT && !Number.isInteger(value)) {
diag.warn(`INT value type cannot accept a floating-point value for ${this._instrumentName}, ignoring the fractional digits.`);
value = Math.trunc(value);
// ignore non-finite values.
if (!Number.isInteger(value)) {
return;
}
}
this._buffer.set(attributes, value);
}
}
/**
* The class implements {@link BatchObservableCallback} interface.
*/
export class BatchObservableResultImpl {
/**
* @internal
*/
_buffer = new Map();
/**
* Observe a measurement of the value associated with the given attributes.
*/
observe(metric, value, attributes = {}) {
if (!isObservableInstrument(metric)) {
return;
}
let map = this._buffer.get(metric);
if (map == null) {
map = new AttributeHashMap();
this._buffer.set(metric, map);
}
if (typeof value !== 'number') {
diag.warn(`non-number value provided to metric ${metric._descriptor.name}: ${value}`);
return;
}
if (metric._descriptor.valueType === ValueType.INT &&
!Number.isInteger(value)) {
diag.warn(`INT value type cannot accept a floating-point value for ${metric._descriptor.name}, ignoring the fractional digits.`);
value = Math.trunc(value);
// ignore non-finite values.
if (!Number.isInteger(value)) {
return;
}
}
map.set(attributes, value);
}
}
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