Example usage for javax.security.cert X509Certificate getInstance

Introduction

In this page you can find the example usage for javax.security.cert X509Certificate getInstance.

Prototype

public static final X509Certificate getInstance(byte[] certData) throws CertificateException

Source Link

Document

Instantiates an X509Certificate object, and initializes it with the specified byte array.

Usage

From source file:pl.psnc.synat.wrdz.zu.certificate.CertificateChecker.java

/**
 * Checks whether any active users' certificates are beyond the expiration threshold.
 *//*from w  w  w  .  j a v  a  2 s . c  o m*/
@TransactionAttribute
public void checkCertificates() {

    List<UserAuthentication> auths = userAuthDao.findAll();

    Calendar cal = Calendar.getInstance();
    cal.add(Calendar.DATE, configuration.getCertificateCheckThreshold());
    Date cutoff = cal.getTime();

    for (UserAuthentication auth : auths) {
        if (auth.getActive() && auth.getCertificate() != null) {
            try {
                X509Certificate certificate = X509Certificate
                        .getInstance(Base64.decodeBase64(auth.getCertificate()));
                if (cutoff.after(certificate.getNotAfter())) {
                    notifyExpirationCheckFail(auth.getUser().getUsername());
                }
            } catch (CertificateException e) {
                logger.warn("Certificate could not be read", e);
            }
        }
    }
}