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// Copyright 2023 The Pigweed 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 { LogEntry } from './shared/interfaces';
export abstract class LogSource {
private eventListeners: {
eventType: string;
listener: (data: LogEntry) => void;
}[];
constructor() {
this.eventListeners = [];
}
addEventListener(
eventType: string,
listener: (data: LogEntry) => void,
): void {
this.eventListeners.push({ eventType, listener });
}
removeEventListener(
eventType: string,
listener: (data: LogEntry) => void,
): void {
this.eventListeners = this.eventListeners.filter(
(eventListener) =>
eventListener.eventType !== eventType ||
eventListener.listener !== listener,
);
}
emitEvent(eventType: string, data: LogEntry): void {
this.eventListeners.forEach((eventListener) => {
if (eventListener.eventType === eventType) {
eventListener.listener(data);
}
});
}
}
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