Ejemplo n.º 1
0
  /**
   * 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();
     }
   }
 }