superset createD3TimeFormatter 源码

2022-10-20
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superset createD3TimeFormatter 代码

文件路径：/superset-frontend/packages/superset-ui-core/src/time-format/factories/createD3TimeFormatter.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 {
  utcFormat,
  timeFormat,
  timeFormatLocale,
  TimeLocaleDefinition,
} from 'd3-time-format';
import { isRequired } from '../../utils';
import TimeFormatter from '../TimeFormatter';
import { LOCAL_PREFIX } from '../TimeFormats';

export default function createD3TimeFormatter(config: {
  description?: string;
  formatString: string;
  label?: string;
  locale?: TimeLocaleDefinition;
  useLocalTime?: boolean;
}) {
  const {
    description,
    formatString = isRequired('formatString'),
    label,
    locale,
    useLocalTime = false,
  } = config;

  const id = useLocalTime ? `${LOCAL_PREFIX}${formatString}` : formatString;
  let formatFunc;

  if (typeof locale === 'undefined') {
    const format = useLocalTime ? timeFormat : utcFormat;
    formatFunc = format(formatString);
  } else {
    const localeObject = timeFormatLocale(locale);
    formatFunc = useLocalTime
      ? localeObject.format(formatString)
      : localeObject.utcFormat(formatString);
  }

  return new TimeFormatter({
    description,
    formatFunc,
    id,
    label,
    useLocalTime,
  });
}

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