cn.ipokerface.common.validation.validator.PatternConstraintValidator Maven / Gradle / Ivy

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Common Library of ipokerface

There is a newer version: 2.1.0

package cn.ipokerface.common.validation.validator;


import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * Created by       PokerFace
 * Create Date      2019-11-25.
 * Email:           [email protected]
 * Version          1.0.0
 * 
 * Description:
 */
public class PatternConstraintValidator implements ConstraintValidator {

    /**
     *  Validate  string by some pattern
     *  Pattern.compile()
     *  pattern.match()
     *
     * @param value parameter value
     * @param constraintAnnotation parameter annotation
     * @return
     */
    public boolean validate(String value, cn.ipokerface.common.validation.constraint.Pattern constraintAnnotation) {
        if (value == null || "".equals(value)) return true;
        String patternValue =  constraintAnnotation.value();
        if (patternValue == null || "".equals(patternValue)) return true;

        Pattern pattern = java.util.regex.Pattern.compile(patternValue);
        Matcher matcher = pattern.matcher(value);

        if (matcher.matches()) return true;

        return false;
    }
}