private X509Certificate readLOTLCertificate() throws DSSException {
X509Certificate lotlCert;
if (lotlCertificate == null) {
final String msg =
"The LOTL signing certificate property must contain a reference to a certificate.";
diagnosticInfo.put(lotlUrl, msg);
throw new DSSException(msg);
}
InputStream inputStream = null;
try {
inputStream = getLotlCertificateInputStream();
lotlCert = DSSUtils.loadCertificate(inputStream);
} catch (DSSException e) {
final String msg = "Cannot read LOTL signing certificate.";
diagnosticInfo.put(lotlUrl, msg);
throw e;
} finally {
DSSUtils.closeQuietly(inputStream);
}
return lotlCert;
}
/**
* Gets the LOTL certificate as an inputStream stream
*
* @return the inputStream stream
* @throws java.io.IOException
*/
private InputStream getLotlCertificateInputStream() throws DSSException {
InputStream inputStream = null;
try {
if (lotlCertificate.toLowerCase().startsWith(CP)) {
final String lotlCertificate_ = lotlCertificate.substring(CP.length() - 1);
inputStream = getClass().getResourceAsStream(lotlCertificate_);
} else if (lotlCertificate.toLowerCase().startsWith(FILE)) {
final URL url = new File(lotlCertificate.substring(FILE.length())).toURI().toURL();
inputStream = url.openStream();
} else {
final URL url = new URL(lotlCertificate);
inputStream = url.openStream();
}
return inputStream;
} catch (Exception e) {
DSSUtils.closeQuietly(inputStream);
throw new DSSException(e);
}
}
/**
* This method retrieves data using FTP protocol .
*
* @param urlString
* @return
*/
protected byte[] ftpGet(final String urlString) {
InputStream inputStream = null;
try {
final URL url = new URL(urlString);
inputStream = url.openStream();
return DSSUtils.toByteArray(inputStream);
} catch (Exception e) {
LOG.warn(e.getMessage());
} finally {
DSSUtils.closeQuietly(inputStream);
}
return null;
}