/**
* Intialize a Discovery Query from a portion of a structured document.
*
* @param root document to intialize from
*/
protected void initialize(Element root) {
if (!XMLElement.class.isInstance(root)) {
throw new IllegalArgumentException(getClass().getName() + " only supports XMLElement");
}
XMLElement doc = (XMLElement) root;
if (!doc.getName().equals(getAdvertisementType())) {
throw new IllegalArgumentException(
"Could not construct : "
+ getClass().getName()
+ "from doc containing a "
+ doc.getName());
}
setDiscoveryType(-1); // force illegal value;
Enumeration<XMLElement> elements = doc.getChildren();
while (elements.hasMoreElements()) {
XMLElement elem = elements.nextElement();
if (!handleElement(elem)) {
if (Logging.SHOW_FINE && LOG.isLoggable(Level.FINE)) {
LOG.fine("Unhandled Element : " + elem.toString());
}
}
}
// sanity check time!
if ((DiscoveryService.PEER != getDiscoveryType())
&& (DiscoveryService.GROUP != getDiscoveryType())
&& (DiscoveryService.ADV != getDiscoveryType())) {
throw new IllegalArgumentException("Type is not one of the required values.");
}
if (getThreshold() < 0) {
throw new IllegalArgumentException("Threshold must not be less than zero.");
}
if ((getDiscoveryType() != DiscoveryService.PEER) && (getThreshold() == 0)) {
throw new IllegalArgumentException("Threshold may not be zero.");
}
if ((null == getAttr()) && (null != getValue())) {
throw new IllegalArgumentException("Value specified without attribute.");
}
}
/**
* Private constructor. Use instantiator
*
* @param root Description of the Parameter
*/
private RouteAdv(Element root) {
if (!XMLElement.class.isInstance(root)) {
throw new IllegalArgumentException(getClass().getName() + " only supports XLMElement");
}
XMLElement doc = (XMLElement) root;
String doctype = doc.getName();
String typedoctype = "";
Attribute itsType = doc.getAttribute("type");
if (null != itsType) {
typedoctype = itsType.getValue();
}
if (!doctype.equals(getAdvertisementType()) && !getAdvertisementType().equals(typedoctype)) {
throw new IllegalArgumentException(
"Could not construct : "
+ getClass().getName()
+ "from doc containing a "
+ doc.getName());
}
Enumeration elements = doc.getChildren();
while (elements.hasMoreElements()) {
XMLElement elem = (XMLElement) elements.nextElement();
if (!handleElement(elem)) {
if (LOG.isEnabledFor(Level.DEBUG)) {
LOG.debug("Unhandled Element: " + elem.toString());
}
}
}
// HACK Compatibility
setDestPeerID(getDestPeerID());
// Sanity Check!!!
if (hasALoop()) {
throw new IllegalArgumentException("Route contains a loop!");
}
}
