com.evasion.common.validator.PasswordValidator Maven / Gradle / Ivy

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package com.evasion.common.validator;

import javax.faces.application.FacesMessage;
import javax.faces.component.UIComponent;
import javax.faces.component.UIInput;
import javax.faces.context.FacesContext;
import javax.faces.validator.FacesValidator;
import javax.faces.validator.Validator;
import javax.faces.validator.ValidatorException;

/**
 *
 * @author sebastien.glon
 */
@FacesValidator(value = "passwordValidator")
public class PasswordValidator implements Validator {

    @Override
    public void validate(FacesContext fc, UIComponent uic, Object o) throws ValidatorException {
        // Obtain the client ID of the first password field from f:attribute.
        String passwordId = (String) uic.getAttributes().get("passwordId");

        // Find the actual JSF component for the client ID.
        UIInput passwordInput = (UIInput) fc.getViewRoot().findComponent(passwordId);

        // Get its value, the entered password of the first field.
        String password = (String) passwordInput.getValue();

        // Cast the value of the entered password of the second field back to String.
        String confirm = (String) o;

        // Compare the first password with the second password.
        if (!password.equals(confirm)) {
            throw new ValidatorException(new FacesMessage("Passwords are not equal."));
        }

        // You can even validate the minimum password length here and throw accordingly.
        // Or, if you're smart, calculate the password strength and throw accordingly ;)

    }
}