/// <summary>
/// 검색엔진의 스칼라 값을 가져온다.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="aColName"></param>
/// <param name="aScenario"></param>
/// <param name="aQuery"></param>
/// <param name="aGroupBy"></param>
/// <returns></returns>
public IDictionary <string, object> GetScalar <T>(Expression <Func <T, object> > aColName, string aScenario, string aQuery)
{
IDictionary <string, object> lResult = new Dictionary <string, object>();
int lReturnCode = 0;
string lReturnMessage = string.Empty;
object lGroupCount;
object lOutGroupKeyCount;
object lGroupKeyVal;
object lGroupSize;
int lPageNumber = 1;
int lPageSize = 1000;
int lStartNum = (lPageNumber - 1) * lPageSize;
string lGroupBy = "group by " + ReflectionUtil.GetMemberName(aColName);
string lOrderBy = "order by " + ReflectionUtil.GetMemberName(aColName);
string lLogInfo = "";
try
{
if (mClient.BeginSession() < 0)
{
throw (new KonanException("BeginSession : " + mClient.GetErrorMessage()));
}
lReturnCode = mClient.SetOption(mClient.OPTION_SOCKET_TIMEOUT_REQUEST, 3 * 60);
if (lReturnCode < 0)
{
throw (new KonanException("SetOption : " + mClient.GetErrorMessage()));
}
lReturnCode = mClient.Search(DAEMON_SERVICE_ADDRESS, aScenario, string.Format("{0} {1}", aQuery, lGroupBy), lOrderBy, "", lLogInfo, lStartNum, lPageSize, mClient.LC_KOREAN, mClient.CS_EUCKR);
if (lReturnCode != 0)
{
throw (new KonanException("ReturnCode : " + lReturnCode + " Scenario : " + aScenario + "\n Query : " + aQuery));
}
if (mClient.GetResult_GroupBy(out lGroupCount, out lOutGroupKeyCount, out lGroupKeyVal, out lGroupSize, 10) < 0)
{
throw (new KonanException("GetResult_GroupBy:" + mClient.GetErrorMessage()));
}
for (int i = 0; i < (int)lGroupCount; i++)
{
var key = (string)((object[, ])lGroupKeyVal)[i, 0];
var val = ((object[])lGroupSize)[i];
lResult.Add(key.ToUpper(), val);
}
//mTotal = (int)lTotal;
}
catch (KonanException e)
{
throw (new KonanException("Unexpected Error : " + e.Message));
}
catch (Exception e)
{
throw (new Exception("Unexpected Error : " + e.Message));
}
finally
{
mClient.EndSession();
}
return(lResult);
}