LocalDateConversion.java
/**
* Copyright (c) 2019, RTE (http://www.rte-france.com)
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
* SPDX-License-Identifier: MPL-2.0
*/
package com.powsybl.ieeecdf.model;
import com.univocity.parsers.conversions.ObjectConversion;
import java.time.LocalDate;
import java.time.format.DateTimeFormatter;
import java.time.format.DateTimeFormatterBuilder;
import java.time.temporal.ChronoField;
/**
* @author Geoffroy Jamgotchian {@literal <geoffroy.jamgotchian at rte-france.com>}
*/
public class LocalDateConversion extends ObjectConversion<LocalDate> {
private static final DateTimeFormatter FORMATTER = new DateTimeFormatterBuilder()
.appendPattern("M/d/")
.optionalStart()
.appendPattern("uuuu")
.optionalEnd()
.optionalStart()
.appendValueReduced(ChronoField.YEAR, 2, 2, 1970)
.optionalEnd()
.toFormatter();
private static final String INVALID_DATE = "0 /0 /0 ";
@Override
protected LocalDate fromString(String str) {
if (!str.equals(INVALID_DATE)) {
return LocalDate.parse(str, FORMATTER);
}
return null;
}
@Override
public String revert(LocalDate date) {
return date != null ? FORMATTER.format(date) : INVALID_DATE;
}
}