How to use

getKeyInfo

method

in

org.opensaml.saml2.metadata.KeyDescriptor

if (kd.getUse() == UsageType.SIGNING) {
  try {
    idpMetadata.setSigningCertificate(KeyInfoHelper.getCertificates(kd.getKeyInfo()).get(0));
  } catch (CertificateException ignored) {
    s_logger.info("[ignored] encountered invalid certificate signing.", ignored);
    idpMetadata.setEncryptionCertificate(KeyInfoHelper.getCertificates(kd.getKeyInfo()).get(0));
  } catch (CertificateException ignored) {
    s_logger.info("[ignored] encountered invalid certificate encryption.", ignored);
    unspecifiedKey = KeyInfoHelper.getCertificates(kd.getKeyInfo()).get(0);
  } catch (CertificateException ignored) {
    s_logger.info("[ignored] encountered invalid certificate.", ignored);

/**
 * Checks that KeyInfo is present.
 * 
 * @param keyDescriptor the key descriptor to validate
 * @throws ValidationException thrown if KeyInfo is not present
 */
protected void validateKeyInfo(KeyDescriptor keyDescriptor) throws ValidationException {
  if (keyDescriptor.getKeyInfo()==null) {
    throw new ValidationException("KeyInfo required");
  }
}

private static Stream<X509Data> getDatasWithCertificates(KeyDescriptor descriptor) {
 return descriptor
   .getKeyInfo()
   .getX509Datas()
   .stream()
   .filter(d -> d.getX509Certificates().size() > 0);
}

private void  setX509Certificate(EntityDescriptor entityDescriptor,SPSSODescriptor spssoDescriptor, SAMLSSOServiceProviderDO samlssoServiceProviderDO){
  List<KeyDescriptor> descriptors = spssoDescriptor.getKeyDescriptors();
  if (descriptors != null && descriptors.size() > 0) {
    KeyDescriptor descriptor = descriptors.get(0);
    if (descriptor != null) {
      if (descriptor.getUse().toString().equals("SIGNING")) {
        try {
          samlssoServiceProviderDO.setX509Certificate(org.opensaml.xml.security.keyinfo.KeyInfoHelper.getCertificates(descriptor.getKeyInfo()).get(0));
          samlssoServiceProviderDO.setCertAlias(entityDescriptor.getEntityID());
        } catch (java.security.cert.CertificateException ex) {
          log.error("Error While setting Certificate and alias", ex);
        }catch(java.lang.Exception ex){
          log.error("Error While setting Certificate and alias", ex);
        }
      }
    }
  }
}
private void  setSigningAlgorithmUri(SPSSODescriptor spssoDescriptor, SAMLSSOServiceProviderDO samlssoServiceProviderDO){

private void setX509Certificate(EntityDescriptor entityDescriptor, SPSSODescriptor spssoDescriptor, SAMLSSOServiceProviderDO samlssoServiceProviderDO) {
  List<KeyDescriptor> descriptors = spssoDescriptor.getKeyDescriptors();
  if (descriptors != null && descriptors.size() > 0) {
    KeyDescriptor descriptor = descriptors.get(0);
    if (descriptor != null) {
      if (descriptor.getUse().toString().equals("SIGNING")) {
        try {
          samlssoServiceProviderDO.setX509Certificate(org.opensaml.xml.security.keyinfo.KeyInfoHelper.getCertificates(descriptor.getKeyInfo()).get(0));
          samlssoServiceProviderDO.setCertAlias(entityDescriptor.getEntityID());
        } catch (java.security.cert.CertificateException ex) {
          log.error("Error While setting Certificate and alias", ex);
        } catch (java.lang.Exception ex) {
          log.error("Error While setting Certificate and alias", ex);
        }
      }
    }
  }
}

if (keyDescriptor.getKeyInfo() != null) {
  trustedNames.addAll(getTrustedNames(keyDescriptor.getKeyInfo()));

if (keyDescriptor.getKeyInfo() != null) {
  CriteriaSet critSet = new CriteriaSet();
  critSet.add(new KeyInfoCriteria(keyDescriptor.getKeyInfo()));

try {
  String cert = null;
  if (descriptor.getKeyInfo() != null) {
    if (descriptor.getKeyInfo().getX509Datas() != null && descriptor.getKeyInfo().getX509Datas().size() > 0) {
      for (int k = 0; k < descriptor.getKeyInfo().getX509Datas().size(); k++) {
        if (descriptor.getKeyInfo().getX509Datas().get(k) != null) {
          if (descriptor.getKeyInfo().getX509Datas().get(k).getX509Certificates() != null &&
              descriptor.getKeyInfo().getX509Datas().get(0).getX509Certificates().size() > 0) {
            for (int y = 0; y < descriptor.getKeyInfo().getX509Datas().get(k).getX509Certificates().size(); y++) {
              if (descriptor.getKeyInfo().getX509Datas().get(k).getX509Certificates().get(y) != null) {
                if (descriptor.getKeyInfo().getX509Datas().get(k).getX509Certificates().get(y).
                    getValue() != null && descriptor.getKeyInfo().getX509Datas().get(k).getX509Certificates().
                    get(y).getValue().length() > 0) {
                  cert = descriptor.getKeyInfo().getX509Datas().get(k).getX509Certificates().get(y).
                      getValue().toString();

KeyInfo ki = kdesc.getKeyInfo();
if (ki == null) {
  continue;

  continue;
KeyInfo ki = kdesc.getKeyInfo();
if (ki == null)
  continue;