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package com.sakadream.jsf.validator;
import javax.faces.application.FacesMessage;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.validator.FacesValidator;
import javax.faces.validator.Validator;
import javax.faces.validator.ValidatorException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Created by Phan Ba Hai on 21/07/2017.
*/
@FacesValidator("com.sakadream.jsf.validator.EmailValidator")
public class EmailValidator implements Validator {
private static final String EMAIL_PATTERN = "^[_A-Za-z0-9-]+(\\." +
"[_A-Za-z0-9-]+)*@[A-Za-z0-9]+(\\.[A-Za-z0-9]+)*" +
"(\\.[A-Za-z]{2,})$";
private Pattern pattern;
private Matcher matcher;
public EmailValidator(){
pattern = Pattern.compile(EMAIL_PATTERN);
}
@Override
public void validate(FacesContext facesContext, UIComponent uiComponent, Object o) throws ValidatorException {
matcher = pattern.matcher(o.toString());
if(!matcher.matches()) {
FacesMessage msg =
new FacesMessage("E-mail validation failed:",
"Invalid E-mail format.");
msg.setSeverity(FacesMessage.SEVERITY_ERROR);
throw new ValidatorException(msg);
}
}
}
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