42 lines
1.4 KiB
Java
42 lines
1.4 KiB
Java
package eu.ztsh.wymiana.validation;
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import jakarta.validation.ConstraintValidator;
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import jakarta.validation.ConstraintValidatorContext;
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import java.time.LocalDate;
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import java.time.format.DateTimeFormatter;
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import java.time.format.DateTimeParseException;
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import java.util.Arrays;
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import java.util.Objects;
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import java.util.regex.Pattern;
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import java.util.stream.Collectors;
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public class AdultValidator implements ConstraintValidator<Adult, String> {
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private final Pattern pattern = Pattern.compile("\\d{11}");
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private final DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyyMMdd");
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@Override
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public boolean isValid(String value, ConstraintValidatorContext context) {
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if (!pattern.matcher(value).matches()) {
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return false;
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}
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var datePart = Arrays.stream(value.substring(0, 6).split("")).map(Integer::parseInt).toArray(Integer[]::new);
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final String prefix;
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if (datePart[2] > 1) {
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datePart[2] = (datePart[2] - 2);
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prefix = "20";
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} else {
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prefix = "19";
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}
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var dateStamp = prefix.concat(Arrays.stream(datePart).map(Objects::toString).collect(Collectors.joining()));
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try {
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return LocalDate.parse(dateStamp, dtf)
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.plusYears(18)
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.isBefore(LocalDate.now(context.getClockProvider().getClock()));
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} catch (DateTimeParseException exception) {
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return false;
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}
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}
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}
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