valhalla / fw-valhalla

package cn.fw.valhalla.converter;

import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.math.NumberUtils;
import org.springframework.boot.context.properties.ConfigurationPropertiesBinding;
import org.springframework.core.convert.converter.Converter;
import org.springframework.lang.Nullable;
import org.springframework.stereotype.Component;

import java.time.Instant;
import java.time.LocalDate;
import java.time.ZoneId;

/**
 * create at 2020-10-19
 *
 * @author kurisu
 */
@Component
@ConfigurationPropertiesBinding
public class Timestamp2LocalDateConverter implements Converter<String, LocalDate> {
    @Override
    @Nullable
    public LocalDate convert(@Nullable final String value) {
        if (StringUtils.isNotBlank(value) && NumberUtils.isDigits(value)) {
            return Instant.ofEpochMilli(NumberUtils.toLong(value)).atZone(ZoneId.systemDefault()).toLocalDate();
        }
        return null;
    }
}