cn.featherfly.conversion.string.format.AbstractLocalDateTimeFormatConvertor Maven / Gradle / Ivy
package cn.featherfly.conversion.string.format;
import java.time.format.DateTimeFormatter;
import java.time.format.DateTimeParseException;
import java.time.temporal.Temporal;
import java.util.List;
import cn.featherfly.common.lang.LangUtils;
import cn.featherfly.common.lang.StringUtils;
import cn.featherfly.conversion.ConversionException;
import cn.featherfly.conversion.string.ToStringConvertor;
/**
*
* 带格式支持的日期转换器，在属性字段上使用@DateFormat来指定格式.
*
*
* @author 钟冀
*/
public abstract class AbstractLocalDateTimeFormatConvertor extends FormatConvertor {
/**
* @param convertor convertor
*/
public AbstractLocalDateTimeFormatConvertor(ToStringConvertor convertor) {
super(convertor);
}
protected abstract T convert(String value, DateTimeFormatter formatter);
/**
* {@inheritDoc}
*/
@Override
protected String formatToString(T value, FormatType genericType) {
if (genericType != null && StringUtils.isNotBlank(genericType.getFormat())) {
DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern(genericType.getFormat());
logger.debug("format {} to string with {}", getSourceType().getName(), genericType.getFormat());
return dateTimeFormatter.format(value);
}
return null;
}
/**
* {@inheritDoc}
*/
@Override
protected T formatToObject(String value, FormatType genericType) {
if (genericType != null && LangUtils.isNotEmpty(genericType.getFormats())) {
List formats = genericType.getFormats();
for (String format : formats) {
DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern(format);
try {
T t = convert(value, dateTimeFormatter);
logger.debug("parse {} with format[{}] success", value, format);
return t;
} catch (DateTimeParseException e) {
logger.debug("parse {} with format[{}] error", value, format);
}
}
throw new ConversionException("#convert_failed_with_type", new Object[]{
value, formats, getSourceType().getName()}
);
}
return null;
}
}