public List <CorrectionCandidate> GetCandidates(string spName, int key, string error, string root, string prefix, string suffix, int minSameBigramAmount, int minLengthVariant, int maxLevensthein, out string log)
{
// sample: call getCandidates('depat',2,0,1);
log = "";
List <CorrectionCandidate> lsCandidates = new List <CorrectionCandidate>();
MySqlConnection conn = new MySqlConnection();
conn.ConnectionString = MariaDBConn;
MySqlCommand cmd = new MySqlCommand();
try
{
conn.Open();
cmd.Connection = conn;
cmd.CommandText = spName;
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@Word", root);
cmd.Parameters["@Word"].Direction = ParameterDirection.Input;
cmd.Parameters.AddWithValue("@MinSameBigramAmount", minSameBigramAmount);
cmd.Parameters["@MinSameBigramAmount"].Direction = ParameterDirection.Input;
cmd.Parameters.AddWithValue("@MinLengthVariant", minLengthVariant);
cmd.Parameters["@MinLengthVariant"].Direction = ParameterDirection.Input;
cmd.Parameters.AddWithValue("@MaxLevensthein", maxLevensthein);
cmd.Parameters["@MaxLevensthein"].Direction = ParameterDirection.Input;
cmd.Parameters.AddWithValue("@IsLemma", 1);
cmd.Parameters["@IsLemma"].Direction = ParameterDirection.Input;
MySqlDataReader dataReader = cmd.ExecuteReader();
while (dataReader.Read())
{
string stem = dataReader["Unigram"].ToString();
Affixer affixer = new Affixer();
string sCandidate = affixer.Affixing(stem, prefix, suffix);
int levensthein = EditDistance.LevenshteinDistance(sCandidate, error, 2);
if (levensthein != -1 && levensthein <= 2)
{
CorrectionCandidate candidate = new CorrectionCandidate
{
Key = key,
Error = error,
Candidate = sCandidate,
SameBigramAmount = Convert.ToInt32(dataReader["SameBigramAmount"]),
Frequency = 0,
LengthDifference = Convert.ToInt32(dataReader["LengthDifference"]),
Levensthein = levensthein
};
lsCandidates.Add(candidate);
}
}
//close Data Reader
dataReader.Close();
}
catch (MySql.Data.MySqlClient.MySqlException ex)
{
throw new Exception(ex.Message);
}
conn.Close();
// Find Frequency then Update to list:
List <string> sCandidates = new List <string>();;
foreach (CorrectionCandidate cc in lsCandidates)
{
sCandidates.Add(cc.Candidate);
}
Dictionary <string, int> dicCandidateAndFreq = GetFrequencies(sCandidates.ToArray());
foreach (CorrectionCandidate candidate in lsCandidates)
{
if (dicCandidateAndFreq.ContainsKey(candidate.Candidate))
{
candidate.Frequency = dicCandidateAndFreq[candidate.Candidate];
}
log += candidate.Candidate + "," + candidate.Levensthein + "," + candidate.Frequency.ToString() + ";";
}
log = string.Format("[{0},{1},{2}][{3}]", minSameBigramAmount, minLengthVariant, maxLevensthein, log);
return(lsCandidates);
}
