/**
* Adds the <tt>Attribute</tt>s to a specific <tt>Request</tt> which support the STUN short-term
* credential mechanism if the mechanism in question is utilized by this
* <tt>StunCandidateHarvest</tt> (i.e. by the associated <tt>StunCandidateHarvester</tt>).
*
* @param request the <tt>Request</tt> to which to add the <tt>Attribute</tt>s supporting the STUN
* short-term credential mechanism if the mechanism in question is utilized by this
* <tt>StunCandidateHarvest</tt>
* @return <tt>true</tt> if the STUN short-term credential mechanism is actually utilized by this
* <tt>StunCandidateHarvest</tt> for the specified <tt>request</tt>; otherwise, <tt>false</tt>
*/
protected boolean addShortTermCredentialAttributes(Request request) {
String shortTermCredentialUsername = harvester.getShortTermCredentialUsername();
if (shortTermCredentialUsername != null) {
request.putAttribute(AttributeFactory.createUsernameAttribute(shortTermCredentialUsername));
request.putAttribute(
AttributeFactory.createMessageIntegrityAttribute(shortTermCredentialUsername));
return true;
} else return false;
}
/**
* @param list
* @param parent
* @exception NumberFormatException
* @exception DicomException
*/
void addAttributesFromNodeToList(AttributeList list, Node parent)
throws NumberFormatException, DicomException {
if (parent != null) {
Node node = parent.getFirstChild();
while (node != null) {
String elementName = node.getNodeName();
NamedNodeMap attributes = node.getAttributes();
if (attributes != null) {
Node vrNode = attributes.getNamedItem("vr");
Node groupNode = attributes.getNamedItem("group");
Node elementNode = attributes.getNamedItem("element");
if (vrNode != null && groupNode != null && elementNode != null) {
String vrString = vrNode.getNodeValue();
String groupString = groupNode.getNodeValue();
String elementString = elementNode.getNodeValue();
if (vrString != null && groupString != null && elementString != null) {
byte[] vr = vrString.getBytes();
int group = Integer.parseInt(groupString, 16);
int element = Integer.parseInt(elementString, 16);
AttributeTag tag = new AttributeTag(group, element);
if ((group % 2 == 0 && element == 0)
|| (group == 0x0008 && element == 0x0001)
|| (group == 0xfffc && element == 0xfffc)) {
// System.err.println("ignoring group length or length to end or dataset trailing
// padding "+tag);
} else {
if (vrString.equals("SQ")) {
SequenceAttribute a = new SequenceAttribute(tag);
// System.err.println("Created "+a);
if (node.hasChildNodes()) {
Node childNode = node.getFirstChild();
while (childNode != null) {
String childNodeName = childNode.getNodeName();
// System.err.println("childNodeName = "+childNodeName);
if (childNodeName != null && childNodeName.equals("Item")) {
// should check item number, but ignore for now :(
// System.err.println("Adding item to sequence");
AttributeList itemList = new AttributeList();
addAttributesFromNodeToList(itemList, childNode);
a.addItem(itemList);
}
// else may be a #text element in between
childNode = childNode.getNextSibling();
}
}
// System.err.println("Sequence Attribute is "+a);
list.put(tag, a);
} else {
Attribute a = AttributeFactory.newAttribute(tag, vr);
// System.err.println("Created "+a);
if (node.hasChildNodes()) {
Node childNode = node.getFirstChild();
while (childNode != null) {
String childNodeName = childNode.getNodeName();
// System.err.println("childNodeName = "+childNodeName);
if (childNodeName != null && childNodeName.equals("value")) {
// should check value number, but ignore for now :(
String value = childNode.getTextContent();
// System.err.println("Value value = "+value);
if (value != null) {
value =
StringUtilities.removeLeadingOrTrailingWhitespaceOrISOControl(
value); // just in case
a.addValue(value);
}
}
// else may be a #text element in between
childNode = childNode.getNextSibling();
}
}
// System.err.println("Attribute is "+a);
list.put(tag, a);
}
}
}
}
}
node = node.getNextSibling();
}
}
}