/**
* Loads a pair from the supplied XML element.
*
* @param graph the graph which elements to load Ideally, I need to match string IDs loaded to
* those of the graph but this is not done because
* <ul>
* <li>graphseries used to mangle names of vertices, now this should not happen often (and
* if I use relabelling when loading graphs, this would never happen).
* <li>this method is expected to be general - purpose hence we do not expect a matching
* graph to be present.
* <li>matching was only needed when loading a compatibility table from a graph - graph
* loader now does the matching after reading pairs.
* </ul>
*
* @param elem element to load from
* @return loaded state pair.
*/
public static <TARGET_TYPE, CACHE_TYPE extends CachedData<TARGET_TYPE, CACHE_TYPE>>
PairScore readPair(AbstractLearnerGraph<TARGET_TYPE, CACHE_TYPE> graph, Element elem) {
if (!elem.getNodeName().equals(StatechumXML.ELEM_PAIR.name()))
throw new IllegalArgumentException("expected to load a pair but got " + elem.getNodeName());
if (!elem.hasAttribute(StatechumXML.ATTR_Q.name())
|| !elem.hasAttribute(StatechumXML.ATTR_R.name()))
throw new IllegalArgumentException("missing attribute in a pair");
String q = elem.getAttribute(StatechumXML.ATTR_Q.name()),
r = elem.getAttribute(StatechumXML.ATTR_R.name()),
score = elem.getAttribute(StatechumXML.ATTR_SCORE.name()),
otherscore = elem.getAttribute(StatechumXML.ATTR_OTHERSCORE.name());
int scoreInt = JUConstants.intUNKNOWN, otherScoreInt = JUConstants.intUNKNOWN;
if (score != null && score.length() > 0)
try {
scoreInt = Integer.valueOf(score);
} catch (NumberFormatException ex) {
statechum.Helper.throwUnchecked("failed to read a score in a pair", ex);
}
if (otherscore != null && otherscore.length() > 0)
try {
otherScoreInt = Integer.valueOf(otherscore);
} catch (NumberFormatException ex) {
statechum.Helper.throwUnchecked("failed to read a anotherscore in a pair", ex);
}
return new PairScore(
AbstractLearnerGraph.generateNewCmpVertex(VertexID.parseID(q), graph.config),
AbstractLearnerGraph.generateNewCmpVertex(VertexID.parseID(r), graph.config),
scoreInt,
otherScoreInt);
}
/**
* Writes the supplied element into XML.
*
* @param element to write
* @return the constructed XML element.
*/
public static Element writePair(PairScore element, Document doc) {
Element pairElement = doc.createElement(StatechumXML.ELEM_PAIR.name());
pairElement.setAttribute(StatechumXML.ATTR_Q.name(), element.getQ().getStringId());
pairElement.setAttribute(StatechumXML.ATTR_R.name(), element.getR().getStringId());
if (element.getScore() != JUConstants.intUNKNOWN)
pairElement.setAttribute(StatechumXML.ATTR_SCORE.name(), Long.toString(element.getScore()));
if (element.getAnotherScore() != JUConstants.intUNKNOWN)
pairElement.setAttribute(
StatechumXML.ATTR_OTHERSCORE.name(), Long.toString(element.getAnotherScore()));
return pairElement;
}