com.vaadin.flow.component.grid.demo.ItemGenerator Maven / Gradle / Ivy
/*
* Copyright 2000-2022 Vaadin Ltd.
*
* 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
*
* 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.
*/
package com.vaadin.flow.component.grid.demo;
import java.time.LocalDate;
import java.time.temporal.ChronoUnit;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
import com.vaadin.flow.component.grid.demo.GridDemo.Item;
/**
* Helper class used for generating stable random data for demo purposes.
*
* @author Vaadin Ltd.
*
*/
class ItemGenerator extends BeanGenerator {
public List- generateItems(int amount) {
LocalDate baseDate = LocalDate.of(2018, 1, 10);
return IntStream.range(0, amount)
.mapToObj(index -> createItem(index + 1, baseDate))
.collect(Collectors.toList());
}
private Item createItem(int index, LocalDate baseDate) {
Item item = new Item();
item.setName("Item " + index);
item.setPrice(100 * getRandom("price").nextDouble());
item.setPurchaseDate(baseDate.atTime(12, 0).minus(
1 + getRandom("purchaseDate").nextInt(3600),
ChronoUnit.SECONDS));
item.setEstimatedDeliveryDate(baseDate.plus(
1 + getRandom("estimatedDeliveryDate").nextInt(15),
ChronoUnit.DAYS));
return item;
}
}