54 lines
1.6 KiB
JavaScript
54 lines
1.6 KiB
JavaScript
/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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import { debounce } from 'lodash';
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class DebouncedMessageQueue {
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constructor({
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callback = () => {},
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sizeThreshold = 1000,
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delayThreshold = 1000,
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}) {
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this.queue = [];
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this.sizeThreshold = sizeThreshold;
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this.delayThreshold = delayThreshold;
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this.trigger = debounce(this.trigger.bind(this), this.delayThreshold);
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this.callback = callback;
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}
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append(eventData) {
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this.queue.push(eventData);
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this.trigger();
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}
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trigger() {
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if (this.queue.length > 0) {
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const events = this.queue.splice(0, this.sizeThreshold);
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this.callback.call(null, events);
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// If there are remaining items, call it again.
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if (this.queue.length > 0) {
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this.trigger();
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}
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}
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}
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}
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export default DebouncedMessageQueue;
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