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119 lines
2.7 KiB
C++
119 lines
2.7 KiB
C++
/* Copyright (C) 2014 InfiniDB, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2 of
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the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/****************************************************************************
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* $Id: func_get_format.cpp 2665 2011-06-01 20:42:52Z rdempsey $
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*
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*
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****************************************************************************/
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#include <cstdlib>
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#include <string>
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using namespace std;
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#include "functor_str.h"
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#include "funchelpers.h"
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#include "functioncolumn.h"
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#include "rowgroup.h"
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using namespace execplan;
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#include "dataconvert.h"
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using namespace dataconvert;
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class to_upper
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{
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public:
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char operator() (char c) const // notice the return type
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{
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return toupper(c);
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}
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};
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namespace funcexp
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{
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string known_date_time_formats[5][4]=
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{
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{"USA", "%m.%d.%Y", "%Y-%m-%d %H.%i.%s", "%h:%i:%s %p" },
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{"JIS", "%Y-%m-%d", "%Y-%m-%d %H:%i:%s", "%H:%i:%s" },
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{"ISO", "%Y-%m-%d", "%Y-%m-%d %H:%i:%s", "%H:%i:%s" },
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{"EUR", "%d.%m.%Y", "%Y-%m-%d %H.%i.%s", "%H.%i.%s" },
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{"INTERNAL", "%Y%m%d", "%Y%m%d%H%i%s", "%H%i%s" }
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};
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string know_types[3]=
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{
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"DATE", "DATETIME", "TIME"
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};
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CalpontSystemCatalog::ColType Func_get_format::operationType( FunctionParm& fp, CalpontSystemCatalog::ColType& resultType )
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{
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return resultType;
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}
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string Func_get_format::getStrVal(rowgroup::Row& row,
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FunctionParm& parm,
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bool& isNull,
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CalpontSystemCatalog::ColType&)
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{
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// parm[0] -- format
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// parm[1] -- type
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string format = parm[0]->data()->getStrVal(row, isNull);
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if (isNull)
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return "";
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transform (format.begin(), format.end(), format.begin(), to_upper());
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string type = parm[1]->data()->getStrVal(row, isNull);
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if (isNull)
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return "";
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transform (type.begin(), type.end(), type.begin(), to_upper());
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int itype = 0;
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for ( ; itype < 3 ; itype++ )
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{
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if ( know_types[itype] == type )
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break;
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}
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// check for match
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if ( itype == 3 )
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return "";
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for ( int i = 0 ; i < 5 ; i ++ )
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{
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if ( known_date_time_formats[i][0] == format )
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{
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switch (itype) {
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case 0:
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return known_date_time_formats[i][2];
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break;
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default:
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return "";
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}
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}
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}
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return "";
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}
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} // namespace funcexp
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// vim:ts=4 sw=4:
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