@opentelemetry/sdk-metrics
Version:
94 lines • 2.98 kB
JavaScript
"use strict";
/*
* 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.FixedSizeExemplarReservoirBase = void 0;
const api_1 = require("@opentelemetry/api");
class ExemplarBucket {
value = 0;
attributes = {};
timestamp = [0, 0];
spanId;
traceId;
_offered = false;
offer(value, timestamp, attributes, ctx) {
this.value = value;
this.timestamp = timestamp;
this.attributes = attributes;
const spanContext = api_1.trace.getSpanContext(ctx);
if (spanContext && (0, api_1.isSpanContextValid)(spanContext)) {
this.spanId = spanContext.spanId;
this.traceId = spanContext.traceId;
}
this._offered = true;
}
collect(pointAttributes) {
if (!this._offered)
return null;
const currentAttributes = this.attributes;
// filter attributes
Object.keys(pointAttributes).forEach(key => {
if (pointAttributes[key] === currentAttributes[key]) {
delete currentAttributes[key];
}
});
const retVal = {
filteredAttributes: currentAttributes,
value: this.value,
timestamp: this.timestamp,
spanId: this.spanId,
traceId: this.traceId,
};
this.attributes = {};
this.value = 0;
this.timestamp = [0, 0];
this.spanId = undefined;
this.traceId = undefined;
this._offered = false;
return retVal;
}
}
class FixedSizeExemplarReservoirBase {
_reservoirStorage;
_size;
constructor(size) {
this._size = size;
this._reservoirStorage = new Array(size);
for (let i = 0; i < this._size; i++) {
this._reservoirStorage[i] = new ExemplarBucket();
}
}
maxSize() {
return this._size;
}
/**
* Resets the reservoir
*/
reset() { }
collect(pointAttributes) {
const exemplars = [];
this._reservoirStorage.forEach(storageItem => {
const res = storageItem.collect(pointAttributes);
if (res !== null) {
exemplars.push(res);
}
});
this.reset();
return exemplars;
}
}
exports.FixedSizeExemplarReservoirBase = FixedSizeExemplarReservoirBase;
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