package com.perscholas.dealfinder.validation;



import java.util.regex.Matcher;

import java.util.regex.Pattern;



import javax.validation.ConstraintValidator;

import javax.validation.ConstraintValidatorContext;



/**

 * Validator that implements EmailConstraint and ensures Email addresses are entered in the correct format

 *

 */

public class EmailValidator implements ConstraintValidator<EmailConstraint, String> {

	public static final Pattern VALID_EMAIL_ADDRESS_REGEX = Pattern.compile("^[A-Z0-9._%+-]+@[A-Z0-9.-]+\\.[A-Z]{2,6}$", 

			Pattern.CASE_INSENSITIVE); 

	public static boolean validate(String emailStr) { 

		Matcher matcher = VALID_EMAIL_ADDRESS_REGEX.matcher(emailStr); 

		return matcher.find(); 

	}

	

	@Override

	public void initialize(EmailConstraint ec) { 

		

	}

	

	@Override

	public boolean isValid(String str, ConstraintValidatorContext ctxt) {

		return (validate(str) && 

				(str.length() > 4) && (str.length()<24));

	}

	

}