private void gatherNamespaces(Element element, List<URI> namespaceSources) throws SAXException {
NamedNodeMap attributes = element.getAttributes();
int attributeCount = attributes.getLength();
for (int i = 0; i < attributeCount; i++) {
Attr attribute = (Attr) attributes.item(i);
String namespace = attribute.getNamespaceURI();
if (XMLConstants.XMLNS_ATTRIBUTE_NS_URI.equals(namespace)) {
try {
namespaceSources.add(new URI(attribute.getValue()));
} catch (URISyntaxException e) {
throw new SAXException(
"Cannot validate this document with this class. Namespaces must be valid URIs. Found Namespace: '"
+ attribute.getValue()
+ "'.",
e);
}
}
}
NodeList childNodes = element.getChildNodes();
int childCount = childNodes.getLength();
for (int i = 0; i < childCount; i++) {
Node child = childNodes.item(i);
if (child.getNodeType() == Node.ELEMENT_NODE) {
gatherNamespaces((Element) child, namespaceSources);
}
}
}
public XsdDOMValidator(Document document) throws SAXException {
AssertArgument.isNotNull(document, "document");
this.document = document;
// Get the default namespace...
String defaultNamespaceString = getDefaultNamespace(document.getDocumentElement());
if (defaultNamespaceString != null) {
try {
defaultNamespace = new URI(defaultNamespaceString);
} catch (URISyntaxException e) {
throw new SAXException(
"Cannot validate this document with this class. Namespaces must be valid URIs. Default Namespace: '"
+ defaultNamespaceString
+ "'.",
e);
}
}
// Get the full namespace list...
gatherNamespaces(document.getDocumentElement(), namespaces);
}