br.com.objectos.io.flat.LocalDateField Maven / Gradle / Ivy
/*
* Copyright 2015 Objectos, Fábrica de Software LTDA.
*
* 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 br.com.objectos.io.flat;
import java.io.IOException;
import java.time.LocalDate;
import java.util.Optional;
import br.com.objectos.io.flat.annotation.LocalDatePattern;
/**
* @author [email protected] (Marcio Endo)
*/
abstract class LocalDateField extends Field {
LocalDateField() {
}
public static LocalDateField get(LocalDate date, LocalDatePattern pattern) {
return new Present(date, pattern);
}
public static LocalDateField get(Optional maybe, LocalDatePattern pattern, String defaultValue) {
return maybe.isPresent()
? new Present(maybe.get(), pattern)
: new Absent(defaultValue);
}
private static class Absent extends LocalDateField {
private final String value;
private Absent(String value) {
this.value = value;
}
@Override
void tryToWriteTo(FlatAppendable out) throws IOException {
out.append(value);
}
}
private static class Present extends LocalDateField {
private final LocalDate date;
private final LocalDatePattern pattern;
private Present(LocalDate date, LocalDatePattern pattern) {
this.date = date;
this.pattern = pattern;
}
@Override
void tryToWriteTo(FlatAppendable out) throws IOException {
out.append(pattern.toString(date));
}
}
}