'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.createListStream = createListStream;

var _stream = require('stream');

/**
 *  Create a Readable stream that provides the items
 *  from a list as objects to subscribers
 *
 *  @param  {Array<any>} items - the list of items to provide
 *  @return {Readable}
 */
function createListStream(items = []) {
  const queue = [].concat(items);

  return new _stream.Readable({
    objectMode: true,
    read(size) {
      queue.splice(0, size).forEach(item => {
        this.push(item);
      });

      if (!queue.length) {
        this.push(null);
      }
    }
  });
} /*
   * Licensed to Elasticsearch B.V. under one or more contributor
   * license agreements. See the NOTICE file distributed with
   * this work for additional information regarding copyright
   * ownership. Elasticsearch B.V. 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.
   */