cn.featherfly.conversion.string.format.DateFormatConvertor Maven / Gradle / Ivy

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package cn.featherfly.conversion.string.format;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;

import cn.featherfly.common.lang.LangUtils;
import cn.featherfly.common.lang.LogUtils;
import cn.featherfly.common.lang.StringUtils;
import cn.featherfly.conversion.ConversionException;
import cn.featherfly.conversion.string.basic.DateConvertor;

/**
 * 
 * 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 class DateFormatConvertor extends FormatConvertor {

    /**
     */
    public DateFormatConvertor() {
        super(new DateConvertor());
    }

    /**
     * {@inheritDoc}
     */
    @Override
    protected String formatToString(Date value, FormatType genericType) {
        if (value != null && genericType != null && StringUtils.isNotBlank(genericType.getFormat())) {
            SimpleDateFormat sdf = new SimpleDateFormat(genericType.getFormat());
            return sdf.format(value);
        }
        return null;
    }



    /**
     * {@inheritDoc}
     */
    @Override
    protected Date formatToObject(String value, FormatType genericType) {
        if (value != null && genericType != null && LangUtils.isNotEmpty(genericType.getFormats())) {
            List formats = genericType.getFormats();
            for (String format : formats) {
                SimpleDateFormat sdf = new SimpleDateFormat(format);
                try {
                    return sdf.parse(value);
                } catch (ParseException e) {
                    LogUtils.debug(e, logger);
                }
            }
            throw new ConversionException("#convert_failed_with_type", new Object[]{
            		value, formats, getSourceType().getName()});
        }
        return null;
    }
}