spring.turbo.format.StringToDateConverter Maven / Gradle / Ivy

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package spring.turbo.format;

import org.springframework.core.convert.TypeDescriptor;
import org.springframework.core.convert.converter.GenericConverter;
import org.springframework.lang.Nullable;
import spring.turbo.bean.DateDescriptor;
import spring.turbo.util.DateParseUtils;
import spring.turbo.util.DateUtils;

import java.time.*;
import java.util.Calendar;
import java.util.Date;
import java.util.Set;

/**
 * @author 应卓
 * @since 1.1.3
 */
public class StringToDateConverter implements GenericConverter {

    /**
     * 构造方法
     */
    public StringToDateConverter() {
        super();
    }

    @Nullable
    @Override
    public Set getConvertibleTypes() {
        return Set.of(
                new ConvertiblePair(String.class, Date.class),
                new ConvertiblePair(String.class, Calendar.class),
                new ConvertiblePair(String.class, LocalDate.class),
                new ConvertiblePair(String.class, LocalDateTime.class),
                new ConvertiblePair(String.class, Year.class),
                new ConvertiblePair(String.class, Instant.class),
                new ConvertiblePair(String.class, java.sql.Date.class),
                new ConvertiblePair(String.class, DateDescriptor.class)
        );
    }

    @Nullable
    @Override
    public Object convert(@Nullable Object source, TypeDescriptor sourceType, TypeDescriptor targetType) {

        if (source == null) {
            return null;
        }

        final String string = (String) source;
        final Date date;

        try {
            date = DateParseUtils.parseWildly(string);
        } catch (Exception e) {
            return null;
        }

        if (targetType.isAssignableTo(TypeDescriptor.valueOf(Date.class))) {
            return date;
        }

        if (targetType.isAssignableTo(TypeDescriptor.valueOf(Calendar.class))) {
            return DateUtils.toCalendar(date);
        }

        if (targetType.isAssignableTo(TypeDescriptor.valueOf(LocalDate.class))) {
            return DateUtils.toLocalDate(date);
        }

        if (targetType.isAssignableTo(TypeDescriptor.valueOf(LocalDateTime.class))) {
            return DateUtils.toLocalDateTime(date);
        }

        if (targetType.isAssignableTo(TypeDescriptor.valueOf(Year.class))) {
            return DateUtils.toYear(date);
        }

        if (targetType.isAssignableTo(TypeDescriptor.valueOf(YearMonth.class))) {
            return DateUtils.toYearMonth(date);
        }

        if (targetType.isAssignableTo(TypeDescriptor.valueOf(Instant.class))) {
            return DateUtils.toInstant(date);
        }

        if (targetType.isAssignableTo(TypeDescriptor.valueOf(java.sql.Date.class))) {
            return new java.sql.Date(date.getTime());
        }

        if (targetType.isAssignableTo(TypeDescriptor.valueOf(DateDescriptor.class))) {
            return DateDescriptor.of(DateUtils.toLocalDate(date));
        }

        return null;
    }

}