@opentelemetry/otlp-exporter-base
Version:
OpenTelemetry OTLP Exporter base (for internal use only)
111 lines • 4.48 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 { ExportResultCode } from '@opentelemetry/core';
import { OTLPExporterError } from './types';
import { createLoggingPartialSuccessResponseHandler } from './logging-response-handler';
import { diag } from '@opentelemetry/api';
class OTLPExportDelegate {
_transport;
_serializer;
_responseHandler;
_promiseQueue;
_timeout;
_diagLogger;
constructor(_transport, _serializer, _responseHandler, _promiseQueue, _timeout) {
this._transport = _transport;
this._serializer = _serializer;
this._responseHandler = _responseHandler;
this._promiseQueue = _promiseQueue;
this._timeout = _timeout;
this._diagLogger = diag.createComponentLogger({
namespace: 'OTLPExportDelegate',
});
}
export(internalRepresentation, resultCallback) {
this._diagLogger.debug('items to be sent', internalRepresentation);
// don't do any work if too many exports are in progress.
if (this._promiseQueue.hasReachedLimit()) {
resultCallback({
code: ExportResultCode.FAILED,
error: new Error('Concurrent export limit reached'),
});
return;
}
const serializedRequest = this._serializer.serializeRequest(internalRepresentation);
if (serializedRequest == null) {
resultCallback({
code: ExportResultCode.FAILED,
error: new Error('Nothing to send'),
});
return;
}
this._promiseQueue.pushPromise(this._transport.send(serializedRequest, this._timeout).then(response => {
if (response.status === 'success') {
if (response.data != null) {
try {
this._responseHandler.handleResponse(this._serializer.deserializeResponse(response.data));
}
catch (e) {
this._diagLogger.warn('Export succeeded but could not deserialize response - is the response specification compliant?', e, response.data);
}
}
// No matter the response, we can consider the export still successful.
resultCallback({
code: ExportResultCode.SUCCESS,
});
return;
}
else if (response.status === 'failure' && response.error) {
resultCallback({
code: ExportResultCode.FAILED,
error: response.error,
});
return;
}
else if (response.status === 'retryable') {
resultCallback({
code: ExportResultCode.FAILED,
error: new OTLPExporterError('Export failed with retryable status'),
});
}
else {
resultCallback({
code: ExportResultCode.FAILED,
error: new OTLPExporterError('Export failed with unknown error'),
});
}
}, reason => resultCallback({
code: ExportResultCode.FAILED,
error: reason,
})));
}
forceFlush() {
return this._promiseQueue.awaitAll();
}
async shutdown() {
this._diagLogger.debug('shutdown started');
await this.forceFlush();
this._transport.shutdown();
}
}
/**
* Creates a generic delegate for OTLP exports which only contains parts of the OTLP export that are shared across all
* signals.
*/
export function createOtlpExportDelegate(components, settings) {
return new OTLPExportDelegate(components.transport, components.serializer, createLoggingPartialSuccessResponseHandler(), components.promiseHandler, settings.timeout);
}
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