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126 lines
3.6 KiB
C++
126 lines
3.6 KiB
C++
//
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// Utility.cpp
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//
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// $Id: //poco/Main/Data/ODBC/src/Utility.cpp#2 $
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//
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// Library: ODBC
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// Package: ODBC
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// Module: Utility
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//
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// Copyright (c) 2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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//
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#include "Poco/Data/ODBC/Utility.h"
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#include "Poco/Data/ODBC/Handle.h"
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#include "Poco/Data/ODBC/ODBCException.h"
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#include "Poco/NumberFormatter.h"
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namespace Poco {
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namespace Data {
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namespace ODBC {
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const DataTypes Utility::_dataTypes;
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const SQLSMALLINT Utility::boolDataType = (sizeof(bool) <= sizeof(char)) ? SQL_C_TINYINT :
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(sizeof(bool) == sizeof(short)) ? SQL_C_SHORT : SQL_C_LONG;
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Utility::DriverMap& Utility::drivers(Utility::DriverMap& driverMap)
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{
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static const EnvironmentHandle henv;
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const int length = sizeof(POCO_SQLCHAR) * 512;
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POCO_SQLCHAR desc[length];
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memset(desc, 0, length);
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SQLSMALLINT len1 = length;
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POCO_SQLCHAR attr[length];
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memset(attr, 0, length);
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SQLSMALLINT len2 = length;
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RETCODE rc = 0;
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while (!Utility::isError(rc = SQLDrivers(henv,
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SQL_FETCH_NEXT,
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desc,
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length,
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&len1,
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attr,
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len2,
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&len2)))
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{
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driverMap.insert(DSNMap::value_type(std::string((char *) desc),
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std::string((char *) attr)));
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memset(desc, 0, length);
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memset(attr, 0, length);
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len2 = length;
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}
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if (SQL_NO_DATA != rc)
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throw EnvironmentError(henv);
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return driverMap;
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}
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Utility::DSNMap& Utility::dataSources(Utility::DSNMap& dsnMap)
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{
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static const EnvironmentHandle henv;
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const int length = sizeof(POCO_SQLCHAR) * 512;
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const int dsnLength = sizeof(POCO_SQLCHAR) * (SQL_MAX_DSN_LENGTH + 1);
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POCO_SQLCHAR dsn[dsnLength];
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memset(dsn, 0, dsnLength);
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SQLSMALLINT len1 = sizeof(POCO_SQLCHAR) * SQL_MAX_DSN_LENGTH;
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POCO_SQLCHAR desc[length];
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memset(desc, 0, length);
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SQLSMALLINT len2 = length;
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RETCODE rc = 0;
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while (!Utility::isError(rc = SQLDataSources(henv,
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SQL_FETCH_NEXT,
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dsn,
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SQL_MAX_DSN_LENGTH,
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&len1,
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desc,
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len2,
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&len2)))
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{
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dsnMap.insert(DSNMap::value_type(std::string((char *) dsn), std::string((char *) desc)));
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memset(dsn, 0, dsnLength);
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memset(desc, 0, length);
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len2 = length;
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}
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if (SQL_NO_DATA != rc)
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throw EnvironmentError(henv);
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return dsnMap;
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}
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} } } // namespace Poco::Data::ODBC
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