public List <int> SearchByToken(string token)
{
if (PostingsByToken.TryGetValue(token, out TokenPosting value))
{
return(value.AllOccurrencesByDocumentId.Keys.ToList());
}
else
{
return(new List <int>());//TokenPosting(token);
}
}
public OccurrencesPerDocument GetOccurrence(string token, int docId)
{
if (PostingsByToken.TryGetValue(token, out TokenPosting value))
{
if (value.AllOccurrencesByDocumentId.TryGetValue(docId, out OccurrencesPerDocument occurrences))
{
return(occurrences);
}
}
return(new OccurrencesPerDocument(docId));
}
private TokenPosting GetOrCreateTokenPostings(string token)
{
if (PostingsByToken.TryGetValue(token, out TokenPosting tokenPostings))
{
return(tokenPostings);
}
else
{
var result = new TokenPosting(token);
PostingsByToken.Add(token, result);
return(result);
}
}
public string GetWordInfo(string token)
{
var sb = new StringBuilder();
if (PostingsByToken.TryGetValue(token, out TokenPosting value))
{
foreach (var doc in value.AllOccurrencesByDocumentId.Values)
{
sb.Append("DocId: " + doc.DocumentId);
sb.Append(" Positions: " + string.Join(",", doc.Positions));
sb.Append(Environment.NewLine);
}
return(sb.ToString());
}
else
{
return("This word does not exist");
}
}