Mercurial > hg > orthanc-databases
view Framework/Odbc/OdbcEnvironment.cpp @ 446:9e039e65d68e pg-transactions
notes
author | Alain Mazy <am@osimis.io> |
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date | Mon, 15 Jan 2024 15:21:43 +0100 |
parents | 3d6886f3e5b3 |
children | ecd0b719cff5 |
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/** * Orthanc - A Lightweight, RESTful DICOM Store * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2023 Osimis S.A., Belgium * Copyright (C) 2021-2023 Sebastien Jodogne, ICTEAM UCLouvain, Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU Affero General Public License * as published by the Free Software Foundation, either version 3 of * the License, or (at your option) any later version. * * 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 * Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. **/ #include "OdbcEnvironment.h" #include <Logging.h> #include <OrthancException.h> #include <boost/lexical_cast.hpp> #include <sqlext.h> namespace OrthancDatabases { OdbcEnvironment::OdbcEnvironment() { LOG(INFO) << "Creating the ODBC environment"; /* Allocate an environment handle */ if (!SQL_SUCCEEDED(SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &handle_))) { throw Orthanc::OrthancException(Orthanc::ErrorCode_Database, "Cannot create ODBC environment"); } /* We want ODBC 3 support */ if (!SQL_SUCCEEDED(SQLSetEnvAttr(handle_, SQL_ATTR_ODBC_VERSION, (void *) SQL_OV_ODBC3, 0))) { SQLFreeHandle(SQL_HANDLE_ENV, handle_); throw Orthanc::OrthancException(Orthanc::ErrorCode_Database, "Your environment doesn't support ODBC 3.x"); } } OdbcEnvironment::~OdbcEnvironment() { LOG(INFO) << "Destructing the ODBC environment"; if (!SQL_SUCCEEDED(SQLFreeHandle(SQL_HANDLE_ENV, handle_))) { LOG(ERROR) << "Cannot tear down ODBC environment"; } } std::string OdbcEnvironment::FormatError(SQLHANDLE handle, SQLSMALLINT type) { SQLINTEGER i = 0; SQLINTEGER native; SQLCHAR state[SQL_SQLSTATE_SIZE + 1]; SQLCHAR text[256]; SQLSMALLINT len; std::string s; for (;;) { SQLRETURN ret = SQLGetDiagRec(type, handle, ++i, state, &native, text, sizeof(text), &len); if (SQL_SUCCEEDED(ret)) { if (i >= 2) { s += "\n"; } s += (std::string(reinterpret_cast<const char*>(state)) + " : " + boost::lexical_cast<std::string>(i) + "/" + boost::lexical_cast<std::string>(native) + " " + std::string(reinterpret_cast<const char*>(text))); } else { return s; } } } void OdbcEnvironment::GlobalInitialization() { /** * Explicitly inform the ODBC driver that the application is using * UTF-8, by making sure that default "C" locale is used. We are * in the scenario "ANSI application with a Unicode driver". * https://docs.microsoft.com/en-us/sql/connect/odbc/linux-mac/programming-guidelines * https://www.progress.com/tutorials/odbc/unicode **/ setlocale(LC_ALL, "C"); } }