309 lines
12 KiB
C++
309 lines
12 KiB
C++
/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2008 by Sun Microsystems, Inc.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: dbmetadata.cxx,v $
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* $Revision: 1.10 $
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org 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 Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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// MARKER(update_precomp.py): autogen include statement, do not remove
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#include "precompiled_connectivity.hxx"
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#include <connectivity/dbmetadata.hxx>
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#include <connectivity/dbexception.hxx>
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/** === begin UNO includes === **/
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#include <com/sun/star/lang/IllegalArgumentException.hpp>
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#include <com/sun/star/container/XChild.hpp>
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#include <com/sun/star/beans/XPropertySet.hpp>
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#include <com/sun/star/beans/PropertyValue.hpp>
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#include <com/sun/star/beans/XPropertySetInfo.hpp>
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#include <com/sun/star/sdb/BooleanComparisonMode.hpp>
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#include <com/sun/star/sdbc/XDatabaseMetaData2.hpp>
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/** === end UNO includes === **/
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#include <tools/diagnose_ex.h>
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#include <comphelper/namedvaluecollection.hxx>
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#include <boost/optional.hpp>
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//........................................................................
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namespace dbtools
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{
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//........................................................................
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/** === begin UNO using === **/
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using ::com::sun::star::uno::Reference;
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using ::com::sun::star::sdbc::XConnection;
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using ::com::sun::star::sdbc::XConnection;
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using ::com::sun::star::sdbc::XDatabaseMetaData;
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using ::com::sun::star::sdbc::XDatabaseMetaData2;
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using ::com::sun::star::lang::IllegalArgumentException;
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using ::com::sun::star::uno::Exception;
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using ::com::sun::star::uno::Any;
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using ::com::sun::star::container::XChild;
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using ::com::sun::star::uno::UNO_QUERY_THROW;
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using ::com::sun::star::beans::XPropertySet;
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using ::com::sun::star::uno::Sequence;
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using ::com::sun::star::beans::PropertyValue;
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using ::com::sun::star::beans::XPropertySetInfo;
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using ::com::sun::star::uno::UNO_QUERY;
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/** === end UNO using === **/
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namespace BooleanComparisonMode = ::com::sun::star::sdb::BooleanComparisonMode;
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//====================================================================
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//= DatabaseMetaData_Impl
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//====================================================================
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struct DatabaseMetaData_Impl
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{
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Reference< XConnection > xConnection;
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Reference< XDatabaseMetaData > xConnectionMetaData;
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::boost::optional< ::rtl::OUString > sCachedIdentifierQuoteString;
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::boost::optional< ::rtl::OUString > sCachedCatalogSeparator;
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};
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//--------------------------------------------------------------------
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namespace
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{
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//................................................................
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static void lcl_construct( DatabaseMetaData_Impl& _metaDataImpl, const Reference< XConnection >& _connection )
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{
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_metaDataImpl.xConnection = _connection;
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if ( !_metaDataImpl.xConnection.is() )
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return;
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_metaDataImpl.xConnectionMetaData = _connection->getMetaData();
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if ( !_metaDataImpl.xConnectionMetaData.is() )
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throw IllegalArgumentException();
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}
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//................................................................
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static void lcl_checkConnected( const DatabaseMetaData_Impl& _metaDataImpl )
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{
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if ( !_metaDataImpl.xConnection.is() || !_metaDataImpl.xConnectionMetaData.is() )
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throwSQLException( "not connected", SQL_CONNECTION_DOES_NOT_EXIST, NULL );
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}
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//................................................................
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static bool lcl_getConnectionSetting( const sal_Char* _asciiName, const DatabaseMetaData_Impl& _metaData, Any& _out_setting )
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{
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try
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{
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Reference< XChild > xConnectionAsChild( _metaData.xConnection, UNO_QUERY );
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if ( xConnectionAsChild.is() )
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{
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Reference< XPropertySet > xDataSource( xConnectionAsChild->getParent(), UNO_QUERY_THROW );
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Reference< XPropertySet > xDataSourceSettings(
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xDataSource->getPropertyValue( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "Settings" ) ) ),
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UNO_QUERY_THROW );
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_out_setting = xDataSourceSettings->getPropertyValue( ::rtl::OUString::createFromAscii( _asciiName ) );
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}
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else
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{
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Reference< XDatabaseMetaData2 > xExtendedMetaData( _metaData.xConnectionMetaData, UNO_QUERY_THROW );
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::comphelper::NamedValueCollection aSettings( xExtendedMetaData->getConnectionInfo() );
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_out_setting = aSettings.get( _asciiName );
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return _out_setting.hasValue();
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}
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return true;
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}
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catch( const Exception& )
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{
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DBG_UNHANDLED_EXCEPTION();
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}
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return false;
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}
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//................................................................
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static const ::rtl::OUString& lcl_getConnectionStringSetting(
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const DatabaseMetaData_Impl& _metaData, ::boost::optional< ::rtl::OUString >& _cachedSetting,
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::rtl::OUString (SAL_CALL XDatabaseMetaData::*_getter)() )
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{
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lcl_checkConnected( _metaData );
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if ( !_cachedSetting )
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{
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try
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{
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_cachedSetting.reset( (_metaData.xConnectionMetaData.get()->*_getter)() );
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}
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catch( const Exception& ) { DBG_UNHANDLED_EXCEPTION(); }
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}
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return *_cachedSetting;
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}
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}
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//====================================================================
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//= DatabaseMetaData
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//====================================================================
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//--------------------------------------------------------------------
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DatabaseMetaData::DatabaseMetaData()
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:m_pImpl( new DatabaseMetaData_Impl )
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{
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}
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//--------------------------------------------------------------------
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DatabaseMetaData::DatabaseMetaData( const Reference< XConnection >& _connection )
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:m_pImpl( new DatabaseMetaData_Impl )
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{
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lcl_construct( *m_pImpl, _connection );
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}
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//--------------------------------------------------------------------
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DatabaseMetaData::DatabaseMetaData( const DatabaseMetaData& _copyFrom )
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:m_pImpl( new DatabaseMetaData_Impl( *_copyFrom.m_pImpl ) )
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{
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}
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//--------------------------------------------------------------------
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DatabaseMetaData& DatabaseMetaData::operator=( const DatabaseMetaData& _copyFrom )
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{
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if ( this == &_copyFrom )
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return *this;
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m_pImpl.reset( new DatabaseMetaData_Impl( *_copyFrom.m_pImpl ) );
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return *this;
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}
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//--------------------------------------------------------------------
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DatabaseMetaData::~DatabaseMetaData()
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{
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}
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//--------------------------------------------------------------------
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bool DatabaseMetaData::isConnected() const
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{
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return m_pImpl->xConnection.is();
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}
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//--------------------------------------------------------------------
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bool DatabaseMetaData::supportsSubqueriesInFrom() const
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{
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lcl_checkConnected( *m_pImpl );
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bool supportsSubQueries = false;
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try
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{
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sal_Int32 maxTablesInselect = m_pImpl->xConnectionMetaData->getMaxTablesInSelect();
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supportsSubQueries = ( maxTablesInselect > 1 ) || ( maxTablesInselect == 0 );
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// TODO: is there a better way to determine this? The above is not really true. More precise,
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// it's a *very* generous heuristics ...
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}
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catch( const Exception& )
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{
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DBG_UNHANDLED_EXCEPTION();
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}
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return supportsSubQueries;
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}
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//--------------------------------------------------------------------
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const ::rtl::OUString& DatabaseMetaData::getIdentifierQuoteString() const
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{
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return lcl_getConnectionStringSetting( *m_pImpl, m_pImpl->sCachedIdentifierQuoteString, &XDatabaseMetaData::getIdentifierQuoteString );
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}
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//--------------------------------------------------------------------
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const ::rtl::OUString& DatabaseMetaData::getCatalogSeparator() const
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{
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return lcl_getConnectionStringSetting( *m_pImpl, m_pImpl->sCachedCatalogSeparator, &XDatabaseMetaData::getCatalogSeparator );
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}
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//--------------------------------------------------------------------
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bool DatabaseMetaData::restrictIdentifiersToSQL92() const
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{
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lcl_checkConnected( *m_pImpl );
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bool restrict( false );
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Any setting;
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if ( lcl_getConnectionSetting( "EnableSQL92Check", *m_pImpl, setting ) )
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OSL_VERIFY( setting >>= restrict );
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return restrict;
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}
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//--------------------------------------------------------------------
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bool DatabaseMetaData::generateASBeforeCorrelationName() const
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{
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bool doGenerate( true );
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Any setting;
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if ( lcl_getConnectionSetting( "GenerateASBeforeCorrelationName", *m_pImpl, setting ) )
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OSL_VERIFY( setting >>= doGenerate );
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return doGenerate;
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}
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//--------------------------------------------------------------------
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bool DatabaseMetaData::shouldEscapeDateTime() const
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{
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bool doGenerate( true );
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Any setting;
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if ( lcl_getConnectionSetting( "EscapeDateTime", *m_pImpl, setting ) )
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OSL_VERIFY( setting >>= doGenerate );
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return doGenerate;
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}
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//--------------------------------------------------------------------
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sal_Int32 DatabaseMetaData::getBooleanComparisonMode() const
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{
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sal_Int32 mode( BooleanComparisonMode::EQUAL_INTEGER );
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Any setting;
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if ( lcl_getConnectionSetting( "BooleanComparisonMode", *m_pImpl, setting ) )
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OSL_VERIFY( setting >>= mode );
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return mode;
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}
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//--------------------------------------------------------------------
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bool DatabaseMetaData::supportsRelations() const
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{
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lcl_checkConnected( *m_pImpl );
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bool bSupport = false;
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try
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{
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bSupport = m_pImpl->xConnectionMetaData->supportsIntegrityEnhancementFacility();
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if ( !bSupport )
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{
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const ::rtl::OUString url = m_pImpl->xConnectionMetaData->getURL();
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char pMySQL[] = "sdbc:mysql:";
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bSupport = url.matchAsciiL(pMySQL,(sizeof(pMySQL)/sizeof(pMySQL[0]))-1);
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}
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}
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catch( const Exception& )
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{
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DBG_UNHANDLED_EXCEPTION();
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}
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return bSupport;
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}
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//--------------------------------------------------------------------
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bool DatabaseMetaData::supportsColumnAliasInOrderBy() const
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{
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bool doGenerate( true );
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Any setting;
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if ( lcl_getConnectionSetting( "ColumnAliasInOrderBy", *m_pImpl, setting ) )
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OSL_VERIFY( setting >>= doGenerate );
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return doGenerate;
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}
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//--------------------------------------------------------------------
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//........................................................................
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} // namespace dbtools
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//........................................................................
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