How to use

setUse

method

in

org.opensaml.saml2.metadata.KeyDescriptor

protected KeyDescriptor getKeyDescriptor(UsageType type, KeyInfo key) {
  @SuppressWarnings("unchecked")
  SAMLObjectBuilder<KeyDescriptor> builder = (SAMLObjectBuilder<KeyDescriptor>) Configuration.getBuilderFactory()
      .getBuilder(KeyDescriptor.DEFAULT_ELEMENT_NAME);
  KeyDescriptor descriptor = builder.buildObject();
  descriptor.setUse(type);
  descriptor.setKeyInfo(key);
  return descriptor;
}

signKeyDescriptor.setUse(UsageType.SIGNING);
encKeyDescriptor.setUse(UsageType.ENCRYPTION);

  /** {@inheritDoc} */
  protected void processAttribute(XMLObject samlObject, Attr attribute) throws UnmarshallingException {
    KeyDescriptor keyDescriptor = (KeyDescriptor) samlObject;

    if (attribute.getName().equals(KeyDescriptor.USE_ATTRIB_NAME)) {
      try {
        UsageType usageType = UsageType.valueOf(UsageType.class, attribute.getValue().toUpperCase());
        // Only allow the enum values specified in the schema.
        if (usageType != UsageType.SIGNING && usageType != UsageType.ENCRYPTION) {
          throw new UnmarshallingException("Invalid key usage type: " + attribute.getValue());
        }
        keyDescriptor.setUse(usageType);
      } catch (IllegalArgumentException e) {
        throw new UnmarshallingException("Invalid key usage type: " + attribute.getValue());
      }
    }

    super.processAttribute(samlObject, attribute);
  }
}

/**
 * Creates the key descriptor element with new key info each time called.
 *
 * @return KeyDescriptor with a new KeyInfo element.
 * @throws MetadataException
 */
private KeyDescriptor createKeyDescriptor() throws MetadataException {
  if (log.isDebugEnabled()) {
    log.debug("Creating the KeyDescriptor element");
  }
  KeyDescriptor keyDescriptor = BuilderUtil.createSAMLObject(ConfigElements.FED_METADATA_NS, "KeyDescriptor", "");
  keyDescriptor.setUse(UsageType.SIGNING);
  keyDescriptor.setKeyInfo(createKeyInfo());
  return keyDescriptor;
}

protected KeyDescriptor getKeyDescriptor(UsageType type, KeyInfo key) {
  SAMLObjectBuilder<KeyDescriptor> builder = (SAMLObjectBuilder<KeyDescriptor>) Configuration.getBuilderFactory().getBuilder(KeyDescriptor.DEFAULT_ELEMENT_NAME);
  KeyDescriptor descriptor = builder.buildObject();
  descriptor.setUse(type);
  descriptor.setKeyInfo(key);
  return descriptor;
}

encKeyDescriptor.setUse(UsageType.SIGNING);

    KeyDescriptor.class, KeyDescriptor.DEFAULT_ELEMENT_NAME);
keyDescriptor.setKeyInfo(getKeyInfo(identity));
keyDescriptor.setUse(UsageType.SIGNING);
idpssoDescriptor.getKeyDescriptors().add(keyDescriptor);