private IList <Tree> DoOneSentence(IList <ParserConstraint> constraints, IList <CoreLabel> words)
{
IParserQuery pq = parser.ParserQuery();
pq.SetConstraints(constraints);
pq.Parse(words);
IList <Tree> trees = Generics.NewLinkedList();
try
{
// Use bestParse if kBest is set to 1.
if (this.kBest == 1)
{
Tree t = pq.GetBestParse();
if (t == null)
{
log.Warn("Parsing of sentence failed. " + "Will ignore and continue: " + SentenceUtils.ListToString(words));
}
else
{
double score = pq.GetBestScore();
t.SetScore(score % -10000.0);
trees.Add(t);
}
}
else
{
IList <ScoredObject <Tree> > scoredObjects = pq.GetKBestParses(this.kBest);
if (scoredObjects == null || scoredObjects.Count < 1)
{
log.Warn("Parsing of sentence failed. " + "Will ignore and continue: " + SentenceUtils.ListToString(words));
}
else
{
foreach (ScoredObject <Tree> so in scoredObjects)
{
// -10000 denotes unknown words
Tree tree = so.Object();
tree.SetScore(so.Score() % -10000.0);
trees.Add(tree);
}
}
}
}
catch (OutOfMemoryException e)
{
log.Error(e);
// Beware that we can now get an OOM in logging, too.
log.Warn("Parsing of sentence ran out of memory (length=" + words.Count + "). " + "Will ignore and try to continue.");
}
catch (NoSuchParseException)
{
log.Warn("Parsing of sentence failed, possibly because of out of memory. " + "Will ignore and continue: " + SentenceUtils.ListToString(words));
}
return(trees);
}
public virtual void SetConstraints(IList <ParserConstraint> constraints)
{
parserQuery.SetConstraints(constraints);
}