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A set of utilities for Java

There is a newer version: 3.0.0

package org.rx.util;

import org.rx.annotation.ValidRegex;
import org.rx.core.Linq;
import org.rx.core.Reflects;
import org.rx.util.function.Func;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import javax.validation.ConstraintViolation;
import javax.validation.Validation;
import javax.validation.executable.ExecutableValidator;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.util.Collections;
import java.util.Set;
import java.util.regex.Pattern;

import static org.rx.core.Extends.ifNull;

/**
 * http://www.cnblogs.com/pixy/p/5306567.html
 *
 * @Valid deep valid
 */
public class Validator {
    public static class RegexValidator implements ConstraintValidator {
        private ValidRegex validRegex;

        @Override
        public void initialize(ValidRegex validRegex) {
            this.validRegex = validRegex;
        }

        @Override
        public boolean isValid(String s, ConstraintValidatorContext context) {
            if (s == null) {
                return true;
            }

            Pattern p = Pattern.compile(validRegex.value().getRegexp(), Pattern.CASE_INSENSITIVE);
            return p.matcher(s).matches();
        }
    }

    static final javax.validation.Validator DEFAULT = Validation.buildDefaultValidatorFactory().getValidator();

    private static javax.validation.Validator getValidator() {
        return DEFAULT;
    }

    public static void validateBean(Object bean) {
        Iterable