the begginning

utils/funcexp/func_find_in_set.cpp

@@ -0,0 +1,117 @@
+/* Copyright (C) 2014 InfiniDB, Inc.
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; version 2 of
+   the License.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+   MA 02110-1301, USA. */
+
+/****************************************************************************
+* $Id: func_find_in_set.cpp 2675 2011-06-22 04:58:07Z chao $
+*
+*
+****************************************************************************/
+
+#include <cstdlib>
+#include <string>
+#include <sstream>
+using namespace std;
+
+#include <boost/tokenizer.hpp>
+using namespace boost;
+
+#include "functor_int.h"
+#include "functioncolumn.h"
+#include "rowgroup.h"
+#include "calpontsystemcatalog.h"
+using namespace execplan;
+
+#include "dataconvert.h"
+
+#include "errorcodes.h"
+#include "idberrorinfo.h"
+#include "errorids.h"
+using namespace logging;
+
+namespace funcexp
+{
+
+CalpontSystemCatalog::ColType Func_find_in_set::operationType( FunctionParm& fp, CalpontSystemCatalog::ColType& resultType )
+{
+	return resultType;
+}
+
+int64_t Func_find_in_set::getIntVal(rowgroup::Row& row,
+						FunctionParm& parm,
+						bool& isNull,
+						CalpontSystemCatalog::ColType& op_ct)
+{
+	const string& searchStr = parm[0]->data()->getStrVal(row, isNull);
+	if (isNull)
+		return 0;
+	const string& setString = parm[1]->data()->getStrVal(row, isNull);
+	if (isNull)
+		return 0;
+	
+	if (searchStr.find(",") != string::npos)
+		return 0;
+		
+	string newSearchStr(searchStr.substr(0, strlen(searchStr.c_str())));
+	string newSetString(setString.substr(0, strlen(setString.c_str())));
+	//tokenize the setStr with comma as seprator.
+	typedef boost::tokenizer<boost::char_separator<char> > tokenizer;
+	boost::char_separator<char> sep( ",");
+	tokenizer tokens(newSetString, sep);
+	
+	unsigned i = 0;
+	size_t pos = 0;
+	for (tokenizer::iterator tok_iter = tokens.begin(); tok_iter != tokens.end(); ++tok_iter)
+	{
+		pos = (*tok_iter).find(newSearchStr);
+		i++;
+		if (( pos != string::npos) && (newSearchStr.length() == (*tok_iter).length()))
+			return i;
+	}
+	
+	return 0;
+}
+
+double Func_find_in_set::getDoubleVal(rowgroup::Row& row,
+						FunctionParm& parm,
+						bool& isNull,
+						execplan::CalpontSystemCatalog::ColType& ct)
+{
+	return (double)getIntVal(row, parm, isNull, ct);
+}
+
+
+string Func_find_in_set::getStrVal(rowgroup::Row& row,
+							FunctionParm& parm,
+							bool& isNull,
+							CalpontSystemCatalog::ColType& ct)
+{
+	return intToString(getIntVal(row, parm, isNull, ct));
+}
+
+execplan::IDB_Decimal Func_find_in_set::getDecimalVal(rowgroup::Row& row,
+						FunctionParm& fp,
+						bool& isNull,
+						execplan::CalpontSystemCatalog::ColType& op_ct)
+{
+	IDB_Decimal decimal;
+	decimal.value = getIntVal(row, fp, isNull, op_ct);
+	decimal.scale = op_ct.scale;
+	return decimal;
+}
+
+} // namespace funcexp
+// vim:ts=4 sw=4: