/**
* Constructs an attribute designator element from an existing XML block.
*
* @param element representing a DOM tree element.
* @exception SAMLException if that there is an error in the sender or in the element definition.
*/
public AttributeDesignator(Element element) throws SAMLException {
// make sure that the input xml block is not null
if (element == null) {
SAMLUtilsCommon.debug.message("AttributeDesignator: Input is null.");
throw new SAMLRequesterException(SAMLUtilsCommon.bundle.getString("nullInput"));
}
// Make sure this is an AttributeDesignator.
String tag = null;
tag = element.getLocalName();
if ((tag == null) || (!tag.equals("AttributeDesignator"))) {
SAMLUtilsCommon.debug.message("AttributeDesignator: wrong input");
throw new SAMLRequesterException(SAMLUtilsCommon.bundle.getString("wrongInput"));
}
// handle attributes
int i = 0;
NamedNodeMap atts = ((Node) element).getAttributes();
int attrCount = atts.getLength();
for (i = 0; i < attrCount; i++) {
Node att = atts.item(i);
if (att.getNodeType() == Node.ATTRIBUTE_NODE) {
String attName = att.getLocalName();
if (attName == null || attName.length() == 0) {
if (SAMLUtilsCommon.debug.messageEnabled()) {
SAMLUtilsCommon.debug.message(
"AttributeDesignator:" + "Attribute Name is either null or empty.");
}
throw new SAMLRequesterException(SAMLUtilsCommon.bundle.getString("nullInput"));
}
if (attName.equals("AttributeName")) {
_attributeName = ((Attr) att).getValue().trim();
} else if (attName.equals("AttributeNamespace")) {
_attributeNameSpace = ((Attr) att).getValue().trim();
}
}
}
// AttributeName is required
if (_attributeName == null || _attributeName.length() == 0) {
if (SAMLUtilsCommon.debug.messageEnabled()) {
SAMLUtilsCommon.debug.message(
"AttributeDesignator: " + "AttributeName is required attribute");
}
throw new SAMLRequesterException(SAMLUtilsCommon.bundle.getString("missingAttribute"));
}
// AttributeNamespace is required
if (_attributeNameSpace == null || _attributeNameSpace.length() == 0) {
if (SAMLUtilsCommon.debug.messageEnabled()) {
SAMLUtilsCommon.debug.message(
"AttributeDesignator: " + "AttributeNamespace is required attribute");
}
throw new SAMLRequesterException(SAMLUtilsCommon.bundle.getString("missingAttribute"));
}
// handle the children of AttributeDesignator element
// Since AttributeDesignator does not have any child element_node,
// we will throw exception if we found any such child.
NodeList nodes = element.getChildNodes();
int nodeCount = nodes.getLength();
if (nodeCount > 0) {
for (i = 0; i < nodeCount; i++) {
Node currentNode = nodes.item(i);
if (currentNode.getNodeType() == Node.ELEMENT_NODE) {
if (SAMLUtilsCommon.debug.messageEnabled()) {
SAMLUtilsCommon.debug.message("AttributeDesignator: illegal input!");
}
throw new SAMLRequesterException(SAMLUtilsCommon.bundle.getString("wrongInput"));
}
}
}
}
