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package cq.database.util;

import java.lang.reflect.InvocationTargetException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.regex.Pattern;

public class ThisUtil {

    public static String date2Str(Date date, String format) {
        SimpleDateFormat sdf = new SimpleDateFormat(format);
        return sdf.format(date);
    }

    public static  T objCast(Object obj, Class clazz) {
        if (obj == null) {
            return null;
        }
        if (Number.class.isAssignableFrom(clazz) || clazz == Boolean.class) {
            try {
                return clazz.getConstructor(String.class).newInstance(obj + "" == "" ? "0" : obj + "");
            } catch (InstantiationException | IllegalAccessException | IllegalArgumentException
                    | InvocationTargetException | NoSuchMethodException | SecurityException e) {
                e.printStackTrace();
                return null;
            }
        }
        return (T) obj;
    }

    public static boolean isNumber(Object o) {
        return Pattern.matches("^(-?\\d+)(\\.\\d+)?$", o + "");
    }
}