/// <summary>
/// Create a query that can be used for document retrival from the given document.
/// </summary>
public Query createQuery(Document query)
{
// Extract the terms that are present in a query.
Dictionary<Term, int> queryTerms = new Dictionary<Term, int>();
foreach (var rawWord in query.getTerms())
{
String word = stemmer.stem(rawWord);
if (stopWords.isStopWord(word)) { continue; }
int frequency;
var term = terms.getTerm(word);
if (queryTerms.TryGetValue(term, out frequency))
{
queryTerms[term] = frequency + 1;
}
else
{
queryTerms[term] = 1;
}
}
// Convert the dictionary into a list of terms.
List<Query.QueryTerm> termList = new List<Query.QueryTerm>();
foreach (var i in queryTerms)
{
termList.Add(new Query.QueryTerm(i.Key, i.Value));
}
return new Query(termList);
}
