/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * This file is part of the LibreOffice project. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. * * This file incorporates work covered by the following license notice: * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed * with this work for additional information regarding copyright * ownership. The ASF licenses this file to you under the Apache * License, Version 2.0 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of * the License at http://www.apache.org/licenses/LICENSE-2.0 . */ #include <odbc/OResultSetMetaData.hxx> #include <odbc/OTools.hxx> using namespace connectivity::odbc; using namespace com::sun::star::uno; using namespace com::sun::star::sdbc; OResultSetMetaData::~OResultSetMetaData() { } OUString OResultSetMetaData::getCharColAttrib(sal_Int32 _column,sal_Int32 ident) { sal_Int32 column = _column; if(_column <static_cast<sal_Int32>(m_vMapping.size())) // use mapping column = m_vMapping[_column]; OUString sValue; SQLSMALLINT cbRealLen = 0; if (bUseWChar && functions().has(ODBC3SQLFunctionId::ColAttributeW)) { // SQLColAttributeW gets/returns count of bytes, not characters SQLSMALLINT cbBufferLen = 128 * sizeof(SQLWCHAR); auto pName = std::make_unique<SQLWCHAR[]>(cbBufferLen / sizeof(SQLWCHAR) + 1); SQLRETURN nRet = functions().ColAttributeW(m_aStatementHandle, column, ident, pName.get(), cbBufferLen, &cbRealLen, nullptr); OTools::ThrowException(m_pConnection, nRet, m_aStatementHandle, SQL_HANDLE_STMT, *this); if (nRet == SQL_SUCCESS) { if (cbRealLen < 0) cbRealLen = cbBufferLen; sValue = toUString(pName.get(), cbRealLen / sizeof(SQLWCHAR)); } if (cbRealLen > cbBufferLen) { cbBufferLen = (cbRealLen + 1) & ~1; // Make sure it's even pName = std::make_unique<SQLWCHAR[]>(cbBufferLen / sizeof(SQLWCHAR) + 1); nRet = functions().ColAttributeW(m_aStatementHandle, column, ident, pName.get(), cbBufferLen, &cbRealLen, nullptr); OTools::ThrowException(m_pConnection, nRet, m_aStatementHandle, SQL_HANDLE_STMT, *this); if (nRet == SQL_SUCCESS && cbRealLen > 0) sValue = toUString(pName.get(), cbRealLen / sizeof(SQLWCHAR)); } } else { SQLSMALLINT BUFFER_LEN = 128; auto pName = std::make_unique<SQLCHAR[]>(BUFFER_LEN + 1); SQLRETURN nRet = functions().ColAttribute(m_aStatementHandle, static_cast<SQLUSMALLINT>(column), static_cast<SQLUSMALLINT>(ident), static_cast<SQLPOINTER>(pName.get()), BUFFER_LEN, &cbRealLen, nullptr ); if ( nRet == SQL_SUCCESS ) { if ( cbRealLen < 0 ) cbRealLen = BUFFER_LEN; sValue = toUString(pName.get(), cbRealLen, m_pConnection->getTextEncoding()); } OTools::ThrowException(m_pConnection,nRet,m_aStatementHandle,SQL_HANDLE_STMT,*this); if(cbRealLen > BUFFER_LEN) { pName = std::make_unique<SQLCHAR[]>(cbRealLen + 1); nRet = functions().ColAttribute(m_aStatementHandle, static_cast<SQLUSMALLINT>(column), static_cast<SQLUSMALLINT>(ident), static_cast<SQLPOINTER>(pName.get()), cbRealLen, &cbRealLen, nullptr ); if ( nRet == SQL_SUCCESS && cbRealLen > 0) sValue = toUString(pName.get(), cbRealLen, m_pConnection->getTextEncoding()); OTools::ThrowException(m_pConnection,nRet,m_aStatementHandle,SQL_HANDLE_STMT,*this); } } return sValue; } SQLLEN OResultSetMetaData::getNumColAttrib(OConnection const * _pConnection ,SQLHANDLE _aStatementHandle ,const css::uno::Reference< css::uno::XInterface >& _xInterface ,sal_Int32 _column ,sal_Int32 _ident) { SQLLEN nValue=0; OTools::ThrowException(_pConnection,_pConnection->functions().ColAttribute(_aStatementHandle, static_cast<SQLUSMALLINT>(_column), static_cast<SQLUSMALLINT>(_ident), nullptr, 0, nullptr, &nValue),_aStatementHandle,SQL_HANDLE_STMT,_xInterface); return nValue; } sal_Int32 OResultSetMetaData::getNumColAttrib(sal_Int32 _column,sal_Int32 ident) { sal_Int32 column = _column; if(_column < static_cast<sal_Int32>(m_vMapping.size())) // use mapping column = m_vMapping[_column]; return getNumColAttrib(m_pConnection,m_aStatementHandle,*this,column,ident); } sal_Int32 SAL_CALL OResultSetMetaData::getColumnDisplaySize( sal_Int32 column ) { return getNumColAttrib(column,SQL_DESC_DISPLAY_SIZE); } SQLSMALLINT OResultSetMetaData::getColumnODBCType(OConnection const * _pConnection ,SQLHANDLE _aStatementHandle ,const css::uno::Reference< css::uno::XInterface >& _xInterface ,sal_Int32 column) { SQLSMALLINT nType = 0; try { nType = static_cast<SQLSMALLINT>(getNumColAttrib(_pConnection,_aStatementHandle,_xInterface,column,SQL_DESC_CONCISE_TYPE)); if(nType == SQL_UNKNOWN_TYPE) nType = static_cast<SQLSMALLINT>(getNumColAttrib(_pConnection,_aStatementHandle,_xInterface,column, SQL_DESC_TYPE)); } catch(SQLException& ) // in this case we have an odbc 2.0 driver { nType = static_cast<SQLSMALLINT>(getNumColAttrib(_pConnection,_aStatementHandle,_xInterface,column,SQL_DESC_CONCISE_TYPE )); } return nType; } sal_Int32 SAL_CALL OResultSetMetaData::getColumnType( sal_Int32 column ) { std::map<sal_Int32,sal_Int32>::iterator aFind = m_aColumnTypes.find(column); if ( aFind == m_aColumnTypes.end() ) { sal_Int32 nType = 0; if(!m_bUseODBC2Types) { try { nType = getNumColAttrib(column,SQL_DESC_CONCISE_TYPE); if(nType == SQL_UNKNOWN_TYPE) nType = getNumColAttrib(column, SQL_DESC_TYPE); nType = OTools::MapOdbcType2Jdbc(nType); } catch(SQLException& ) // in this case we have an odbc 2.0 driver { m_bUseODBC2Types = true; } } if (m_bUseODBC2Types) nType = OTools::MapOdbcType2Jdbc(getNumColAttrib(column, SQL_DESC_CONCISE_TYPE)); aFind = m_aColumnTypes.emplace(column,nType).first; } return aFind->second; } sal_Int32 SAL_CALL OResultSetMetaData::getColumnCount( ) { if(m_nColCount != -1) return m_nColCount; sal_Int16 nNumResultCols=0; OTools::ThrowException(m_pConnection,functions().NumResultCols(m_aStatementHandle,&nNumResultCols),m_aStatementHandle,SQL_HANDLE_STMT,*this); m_nColCount = nNumResultCols; return m_nColCount; } sal_Bool SAL_CALL OResultSetMetaData::isCaseSensitive( sal_Int32 column ) { return getNumColAttrib(column,SQL_DESC_CASE_SENSITIVE) == SQL_TRUE; } OUString SAL_CALL OResultSetMetaData::getSchemaName( sal_Int32 column ) { return getCharColAttrib(column,SQL_DESC_SCHEMA_NAME); } OUString SAL_CALL OResultSetMetaData::getColumnName( sal_Int32 column ) { return getCharColAttrib(column,SQL_DESC_NAME); } OUString SAL_CALL OResultSetMetaData::getTableName( sal_Int32 column ) { return getCharColAttrib(column,SQL_DESC_TABLE_NAME); } OUString SAL_CALL OResultSetMetaData::getCatalogName( sal_Int32 column ) { return getCharColAttrib(column,SQL_DESC_CATALOG_NAME); } OUString SAL_CALL OResultSetMetaData::getColumnTypeName( sal_Int32 column ) { return getCharColAttrib(column,SQL_DESC_TYPE_NAME); } OUString SAL_CALL OResultSetMetaData::getColumnLabel( sal_Int32 column ) { return getCharColAttrib(column,SQL_DESC_LABEL); } OUString SAL_CALL OResultSetMetaData::getColumnServiceName( sal_Int32 /*column*/ ) { return OUString(); } sal_Bool SAL_CALL OResultSetMetaData::isCurrency( sal_Int32 column ) { return getNumColAttrib(column,SQL_DESC_FIXED_PREC_SCALE) == SQL_TRUE; } sal_Bool SAL_CALL OResultSetMetaData::isAutoIncrement( sal_Int32 column ) { return getNumColAttrib(column,SQL_DESC_AUTO_UNIQUE_VALUE) == SQL_TRUE; } sal_Bool SAL_CALL OResultSetMetaData::isSigned( sal_Int32 column ) { return getNumColAttrib(column,SQL_DESC_UNSIGNED) == SQL_FALSE; } sal_Int32 SAL_CALL OResultSetMetaData::getPrecision( sal_Int32 column ) { sal_Int32 nType = 0; if (!m_bUseODBC2Types) { try { nType = getNumColAttrib(column, SQL_DESC_PRECISION); } catch (const SQLException&) // in this case we have an odbc 2.0 driver { m_bUseODBC2Types = true; } } if (m_bUseODBC2Types) nType = getNumColAttrib(column, SQL_COLUMN_PRECISION); return nType; } sal_Int32 SAL_CALL OResultSetMetaData::getScale( sal_Int32 column ) { sal_Int32 nType = 0; if (!m_bUseODBC2Types) { try { nType = getNumColAttrib(column, SQL_DESC_SCALE); } catch (const SQLException&) // in this case we have an odbc 2.0 driver { m_bUseODBC2Types = true; } } if (m_bUseODBC2Types) nType = getNumColAttrib(column, SQL_COLUMN_SCALE); return nType; } sal_Int32 SAL_CALL OResultSetMetaData::isNullable( sal_Int32 column ) { return getNumColAttrib(column,SQL_DESC_NULLABLE); } sal_Bool SAL_CALL OResultSetMetaData::isSearchable( sal_Int32 column ) { return getNumColAttrib(column,SQL_DESC_SEARCHABLE) != SQL_PRED_NONE; } sal_Bool SAL_CALL OResultSetMetaData::isReadOnly( sal_Int32 column ) { return getNumColAttrib(column,SQL_DESC_UPDATABLE) == SQL_ATTR_READONLY; } sal_Bool SAL_CALL OResultSetMetaData::isDefinitelyWritable( sal_Int32 column ) { return getNumColAttrib(column,SQL_DESC_UPDATABLE) == SQL_ATTR_WRITE; } sal_Bool SAL_CALL OResultSetMetaData::isWritable( sal_Int32 column ) { return getNumColAttrib(column,SQL_DESC_UPDATABLE) == SQL_ATTR_WRITE; } /* vim:set shiftwidth=4 softtabstop=4 expandtab: */