ProcessingQueue.js•2.38 kB
"use strict";
/**
* Copyright 2022 Google LLC.
* Copyright (c) Microsoft Corporation.
*
* 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
*
* http://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.
*/
var _a;
Object.defineProperty(exports, "__esModule", { value: true });
exports.ProcessingQueue = void 0;
const log_js_1 = require("./log.js");
class ProcessingQueue {
static LOGGER_PREFIX = `${log_js_1.LogType.debug}:queue`;
#logger;
#processor;
#queue = [];
// Flag to keep only 1 active processor.
#isProcessing = false;
constructor(processor, logger) {
this.#processor = processor;
this.#logger = logger;
}
add(entry, name) {
this.#queue.push([entry, name]);
// No need in waiting. Just initialize processor if needed.
void this.#processIfNeeded();
}
async #processIfNeeded() {
if (this.#isProcessing) {
return;
}
this.#isProcessing = true;
while (this.#queue.length > 0) {
const arrayEntry = this.#queue.shift();
if (!arrayEntry) {
continue;
}
const [entryPromise, name] = arrayEntry;
this.#logger?.(_a.LOGGER_PREFIX, 'Processing event:', name);
await entryPromise
.then((entry) => {
if (entry.kind === 'error') {
this.#logger?.(log_js_1.LogType.debugError, 'Event threw before sending:', entry.error.message, entry.error.stack);
return;
}
return this.#processor(entry.value);
})
.catch((error) => {
this.#logger?.(log_js_1.LogType.debugError, 'Event was not processed:', error?.message);
});
}
this.#isProcessing = false;
}
}
exports.ProcessingQueue = ProcessingQueue;
_a = ProcessingQueue;
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