superset RegistryWithDefaultKey 源码

2022-10-20
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superset RegistryWithDefaultKey 代码

文件路径：/superset-frontend/packages/superset-ui-core/src/models/RegistryWithDefaultKey.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 Registry, { RegistryConfig } from './Registry';

interface RegistryWithDefaultKeyConfig extends RegistryConfig {
  initialDefaultKey?: string;
  setFirstItemAsDefault?: boolean;
}

export default class RegistryWithDefaultKey<
  V,
  W extends V | Promise<V> = V | Promise<V>,
> extends Registry<V, W> {
  initialDefaultKey?: string;

  defaultKey?: string;

  setFirstItemAsDefault: boolean;

  constructor(config: RegistryWithDefaultKeyConfig = {}) {
    super(config);
    const { initialDefaultKey = undefined, setFirstItemAsDefault = false } =
      config;
    this.initialDefaultKey = initialDefaultKey;
    this.defaultKey = initialDefaultKey;
    this.setFirstItemAsDefault = setFirstItemAsDefault;
  }

  clear() {
    super.clear();
    this.defaultKey = this.initialDefaultKey;

    return this;
  }

  get(key?: string) {
    const targetKey = key ?? this.defaultKey;

    return targetKey ? super.get(targetKey) : undefined;
  }

  registerValue(key: string, value: V) {
    super.registerValue(key, value);
    // If there is no default, set as default
    if (this.setFirstItemAsDefault && !this.defaultKey) {
      this.defaultKey = key;
    }

    return this;
  }

  registerLoader(key: string, loader: () => W) {
    super.registerLoader(key, loader);
    // If there is no default, set as default
    if (this.setFirstItemAsDefault && !this.defaultKey) {
      this.defaultKey = key;
    }

    return this;
  }

  getDefaultKey() {
    return this.defaultKey;
  }

  setDefaultKey(key: string) {
    this.defaultKey = key;

    return this;
  }

  clearDefaultKey() {
    this.defaultKey = undefined;

    return this;
  }
}

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本文标签： 大数据
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