superset TimeFormatter 源码
superset TimeFormatter 代码
文件路径：/superset-frontend/packages/superset-ui-core/src/time-format/TimeFormatter.ts
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
import { ExtensibleFunction } from '../models';
import { isRequired } from '../utils';
import { TimeFormatFunction } from './types';
import stringifyTimeInput from './utils/stringifyTimeInput';
export const PREVIEW_TIME = new Date(Date.UTC(2017, 1, 14, 11, 22, 33));
// Use type augmentation to indicate that
// an instance of TimeFormatter is also a function
interface TimeFormatter {
(value: Date | number | null | undefined): string;
}
class TimeFormatter extends ExtensibleFunction {
id: string;
label: string;
description: string;
formatFunc: TimeFormatFunction;
useLocalTime: boolean;
constructor(config: {
id: string;
label?: string;
description?: string;
formatFunc: TimeFormatFunction;
useLocalTime?: boolean;
}) {
super((value: Date | number | null | undefined) => this.format(value));
const {
id = isRequired('config.id'),
label,
description = '',
formatFunc = isRequired('config.formatFunc'),
useLocalTime = false,
} = config;
this.id = id;
this.label = label ?? id;
this.description = description;
this.formatFunc = formatFunc;
this.useLocalTime = useLocalTime;
}
format(value: Date | number | null | undefined) {
return stringifyTimeInput(value, time => this.formatFunc(time));
}
preview(value: Date = PREVIEW_TIME) {
return `${value.toUTCString()} => ${this.format(value)}`;
}
}
export default TimeFormatter;
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