@opentelemetry/otlp-exporter-base
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OpenTelemetry OTLP Exporter base (for internal use only)
50 lines • 1.83 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.
*/
class BoundedQueueExportPromiseHandler {
_concurrencyLimit;
_sendingPromises = [];
/**
* @param concurrencyLimit maximum promises allowed in a queue at the same time.
*/
constructor(concurrencyLimit) {
this._concurrencyLimit = concurrencyLimit;
}
pushPromise(promise) {
if (this.hasReachedLimit()) {
throw new Error('Concurrency Limit reached');
}
this._sendingPromises.push(promise);
const popPromise = () => {
const index = this._sendingPromises.indexOf(promise);
this._sendingPromises.splice(index, 1);
};
promise.then(popPromise, popPromise);
}
hasReachedLimit() {
return this._sendingPromises.length >= this._concurrencyLimit;
}
async awaitAll() {
await Promise.all(this._sendingPromises);
}
}
/**
* Promise queue for keeping track of export promises. Finished promises will be auto-dequeued.
* Allows for awaiting all promises in the queue.
*/
export function createBoundedQueueExportPromiseHandler(options) {
return new BoundedQueueExportPromiseHandler(options.concurrencyLimit);
}
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