001/* -*- mode: Java; c-basic-offset: 2; indent-tabs-mode: nil; coding: utf-8-unix -*-
002 *
003 * Copyright © 2020 microBean™.
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 *     http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
014 * implied.  See the License for the specific language governing
015 * permissions and limitations under the License.
016 */
017package org.microbean.settings.converter;
018
019import java.time.LocalDate;
020
021import java.time.format.DateTimeParseException;
022
023import javax.enterprise.context.ApplicationScoped;
024
025import org.microbean.settings.Converter;
026import org.microbean.settings.Value;
027
028@ApplicationScoped
029public class LocalDateConverter implements Converter<LocalDate> {
030
031  private static final long serialVersionUID = 1L;
032
033  public LocalDateConverter() {
034    super();
035  }
036
037  @Override
038  public LocalDate convert(final Value value) {
039    final LocalDate returnValue;
040    if (value == null) {
041      returnValue = null;
042    } else {
043      final String stringValue = value.get();
044      if (stringValue == null) {
045        returnValue = null;
046      } else {
047        LocalDate temp = null;
048        try {
049          temp = LocalDate.parse(stringValue);
050        } catch (final DateTimeParseException exception) {
051          throw new IllegalArgumentException(exception.getMessage(), exception);
052        } finally {
053          returnValue = temp;
054        }
055      }
056    }
057    return returnValue;
058  }
059
060}