438 lines
17 KiB
C++
438 lines
17 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include "connectivity/dbmetadata.hxx"
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#include "connectivity/dbexception.hxx"
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#include "connectivity/DriversConfig.hxx"
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#include "resource/common_res.hrc"
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#include "resource/sharedresources.hxx"
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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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#include <com/sun/star/sdbcx/XUsersSupplier.hpp>
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#include <com/sun/star/sdbcx/XDataDefinitionSupplier.hpp>
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#include <com/sun/star/sdbc/XDriverAccess.hpp>
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#include <tools/diagnose_ex.h>
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#include <comphelper/namedvaluecollection.hxx>
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#include <comphelper/componentcontext.hxx>
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#include <comphelper/processfactory.hxx>
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#include <sal/macros.h>
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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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using ::com::sun::star::sdbcx::XUsersSupplier;
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using ::com::sun::star::sdbcx::XDataDefinitionSupplier;
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using ::com::sun::star::sdbc::XDriverAccess;
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using ::com::sun::star::uno::UNO_SET_THROW;
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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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::connectivity::DriversConfig aDriverConfig;
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::boost::optional< ::rtl::OUString > sCachedIdentifierQuoteString;
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::boost::optional< ::rtl::OUString > sCachedCatalogSeparator;
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DatabaseMetaData_Impl()
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:xConnection()
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,xConnectionMetaData()
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,aDriverConfig( ::comphelper::getProcessServiceFactory() )
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,sCachedIdentifierQuoteString()
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,sCachedCatalogSeparator()
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{
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}
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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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{
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::connectivity::SharedResources aResources;
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const ::rtl::OUString sError( aResources.getResourceString(STR_NO_CONNECTION_GIVEN));
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throwSQLException( sError, SQL_CONNECTION_DOES_NOT_EXIST, NULL );
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}
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}
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//................................................................
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static bool lcl_getDriverSetting( const sal_Char* _asciiName, const DatabaseMetaData_Impl& _metaData, Any& _out_setting )
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{
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lcl_checkConnected( _metaData );
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const ::comphelper::NamedValueCollection& rDriverMetaData = _metaData.aDriverConfig.getMetaData( _metaData.xConnectionMetaData->getURL() );
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if ( !rDriverMetaData.has( _asciiName ) )
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return false;
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_out_setting = rDriverMetaData.get( _asciiName );
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return true;
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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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if ( !_cachedSetting )
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{
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lcl_checkConnected( _metaData );
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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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bool DatabaseMetaData::supportsPrimaryKeys() const
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{
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lcl_checkConnected( *m_pImpl );
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bool doesSupportPrimaryKeys = false;
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try
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{
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Any setting;
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if ( !( lcl_getConnectionSetting( "PrimaryKeySupport", *m_pImpl, setting ) )
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|| !( setting >>= doesSupportPrimaryKeys )
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)
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doesSupportPrimaryKeys = m_pImpl->xConnectionMetaData->supportsCoreSQLGrammar();
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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 doesSupportPrimaryKeys;
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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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bool DatabaseMetaData::isAutoIncrementPrimaryKey() const
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{
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bool is( true );
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Any setting;
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if ( lcl_getDriverSetting( "AutoIncrementIsPrimaryKey", *m_pImpl, setting ) )
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OSL_VERIFY( setting >>= is );
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return is;
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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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}
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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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try
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{
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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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bool DatabaseMetaData::supportsUserAdministration( const ::comphelper::ComponentContext& _rContext ) const
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{
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lcl_checkConnected( *m_pImpl );
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bool isSupported( false );
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try
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{
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// find the XUsersSupplier interface
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// - either directly at the connection
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Reference< XUsersSupplier > xUsersSupp( m_pImpl->xConnection, UNO_QUERY );
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if ( !xUsersSupp.is() )
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{
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// - or at the driver manager
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Reference< XDriverAccess > xDriverManager(
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_rContext.createComponent( "com.sun.star.sdbc.DriverManager" ), UNO_QUERY_THROW );
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Reference< XDataDefinitionSupplier > xDriver( xDriverManager->getDriverByURL( m_pImpl->xConnectionMetaData->getURL() ), UNO_QUERY );
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if ( xDriver.is() )
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xUsersSupp.set( xDriver->getDataDefinitionByConnection( m_pImpl->xConnection ), UNO_QUERY );
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}
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isSupported = ( xUsersSupp.is() && xUsersSupp->getUsers().is() );
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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 isSupported;
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}
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//--------------------------------------------------------------------
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bool DatabaseMetaData::displayEmptyTableFolders() const
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{
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bool doDisplay( true );
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#ifdef IMPLEMENTED_LATER
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Any setting;
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if ( lcl_getConnectionSetting( "DisplayEmptyTableFolders", *m_pImpl, setting ) )
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OSL_VERIFY( setting >>= doDisplay );
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#else
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try
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{
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Reference< XDatabaseMetaData > xMeta( m_pImpl->xConnectionMetaData, UNO_SET_THROW );
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::rtl::OUString sConnectionURL( xMeta->getURL() );
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doDisplay = sConnectionURL.compareToAscii( RTL_CONSTASCII_STRINGPARAM( "sdbc:mysql:mysqlc" ) ) == 0;
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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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#endif
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return doDisplay;
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}
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//--------------------------------------------------------------------
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bool DatabaseMetaData::supportsThreads() const
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{
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bool bSupported( true );
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try
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{
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Reference< XDatabaseMetaData > xMeta( m_pImpl->xConnectionMetaData, UNO_SET_THROW );
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::rtl::OUString sConnectionURL( xMeta->getURL() );
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bSupported = sConnectionURL.compareToAscii( RTL_CONSTASCII_STRINGPARAM( "sdbc:mysql:mysqlc" ) ) != 0;
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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 bSupported;
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}
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//........................................................................
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} // namespace dbtools
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//........................................................................
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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