/**
* Generates an X.509 certificate object and initializes it with the data read from the input
* stream <code>is</code>.
*
* @param is an input stream with the certificate data.
* @return an X.509 certificate object initialized with the data from the input stream.
* @exception CertificateException on parsing errors.
*/
public Certificate engineGenerateCertificate(InputStream is) throws CertificateException {
if (is == null) {
// clear the caches (for debugging)
certCache.clear();
X509CertificatePair.clearCache();
throw new CertificateException("Missing input stream");
}
try {
byte[] encoding = readOneBlock(is);
if (encoding != null) {
X509CertImpl cert = getFromCache(certCache, encoding);
if (cert != null) {
return cert;
}
cert = new X509CertImpl(encoding);
addToCache(certCache, cert.getEncodedInternal(), cert);
return cert;
} else {
throw new IOException("Empty input");
}
} catch (IOException ioe) {
throw (CertificateException)
new CertificateException("Could not parse certificate: " + ioe.toString()).initCause(ioe);
}
}
/**
* Generates an X.509 certificate revocation list (CRL) object and initializes it with the data
* read from the given input stream <code>is</code>.
*
* @param is an input stream with the CRL data.
* @return an X.509 CRL object initialized with the data from the input stream.
* @exception CRLException on parsing errors.
*/
public CRL engineGenerateCRL(InputStream is) throws CRLException {
if (is == null) {
// clear the cache (for debugging)
crlCache.clear();
throw new CRLException("Missing input stream");
}
try {
byte[] encoding = readOneBlock(is);
if (encoding != null) {
X509CRLImpl crl = getFromCache(crlCache, encoding);
if (crl != null) {
return crl;
}
crl = new X509CRLImpl(encoding);
addToCache(crlCache, crl.getEncodedInternal(), crl);
return crl;
} else {
throw new IOException("Empty input");
}
} catch (IOException ioe) {
throw new CRLException(ioe.getMessage());
}
}
/** Clear the cache for debugging. */
public static synchronized void clearCache() {
cache.clear();
}