plus.jdk.validator.Email Maven / Gradle / Ivy

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package plus.jdk.validator;

import plus.jdk.ananotaions.ValidationRule;
import plus.jdk.common.IValidator;
import plus.jdk.common.ValidateException;

import java.lang.reflect.Field;
import java.util.regex.Pattern;

public class Email implements IValidator {
    @Override
    public void validate(ValidationRule validationRule, String fieldName, Object fieldValue, Field field, Object input, Object args) throws ValidateException {
        if (fieldValue == null) {
            throw new ValidateException(validationRule.message());
        }
        String value = String.valueOf(fieldValue);
        String regEx = "^([a-z0-9A-Z]+[-|\\.]?)+[a-z0-9A-Z]@([a-z0-9A-Z]+(-[a-z0-9A-Z]+)?\\.)+[a-zA-Z]{2,}$";
        if(!args.equals("")) {
            regEx = String.format("^([a-z0-9A-Z]+[-|\\.]?)+[a-z0-9A-Z]@(%s)$", args);
        }
        Pattern p = Pattern.compile(regEx);
        if(!p.matcher(value).matches()) {
            throw new ValidateException(validationRule.message());
        }
    }
}