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| -rw-r--r-- | connectivity/source/commontools/TTableHelper.cxx | 610 |
1 files changed, 610 insertions, 0 deletions
diff --git a/connectivity/source/commontools/TTableHelper.cxx b/connectivity/source/commontools/TTableHelper.cxx new file mode 100644 index 000000000..31e240469 --- /dev/null +++ b/connectivity/source/commontools/TTableHelper.cxx @@ -0,0 +1,610 @@ +/* -*- 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 <sal/config.h> +#include <sal/log.hxx> + +#include <connectivity/TTableHelper.hxx> +#include <com/sun/star/sdb/tools/XTableRename.hpp> +#include <com/sun/star/sdb/tools/XTableAlteration.hpp> +#include <com/sun/star/sdb/tools/XKeyAlteration.hpp> +#include <com/sun/star/sdb/tools/XIndexAlteration.hpp> +#include <sdbcx/VKey.hxx> +#include <com/sun/star/sdbc/XRow.hpp> +#include <com/sun/star/sdbc/XResultSet.hpp> +#include <com/sun/star/sdbcx/KeyType.hpp> +#include <cppuhelper/implbase.hxx> +#include <com/sun/star/lang/XMultiServiceFactory.hpp> +#include <comphelper/types.hxx> +#include <connectivity/dbtools.hxx> +#include <connectivity/sdbcx/VCollection.hxx> +#include <unotools/sharedunocomponent.hxx> +#include <TConnection.hxx> + +#include <o3tl/functional.hxx> + +#include <iterator> +#include <set> + +using namespace ::comphelper; +using namespace connectivity; +using namespace ::com::sun::star::uno; +using namespace ::com::sun::star::beans; +using namespace ::com::sun::star::sdbcx; +using namespace ::com::sun::star::sdbc; +using namespace ::com::sun::star::container; +using namespace ::com::sun::star::lang; + +namespace +{ + /// helper class for column property change events which holds the OComponentDefinition weak +class OTableContainerListener: + public ::cppu::WeakImplHelper< XContainerListener > +{ + OTableHelper* m_pComponent; + std::map< OUString,bool> m_aRefNames; + +protected: + virtual ~OTableContainerListener() override {} +public: + explicit OTableContainerListener(OTableHelper* _pComponent) : m_pComponent(_pComponent){} + // noncopyable + OTableContainerListener(const OTableContainerListener&) = delete; + const OTableContainerListener& operator=(const OTableContainerListener&) = delete; + virtual void SAL_CALL elementInserted( const css::container::ContainerEvent& /*Event*/ ) override + { + } + virtual void SAL_CALL elementRemoved( const css::container::ContainerEvent& Event ) override + { + // tdf#137745, perhaps connectivity::OTableHelper::disposing() has been called + // which called OTableContainerListener::clear(), so m_pComponent may be null + if (m_pComponent == nullptr) + return; + + OUString sName; + Event.Accessor >>= sName; + if ( m_aRefNames.find(sName) != m_aRefNames.end() ) + m_pComponent->refreshKeys(); + } + virtual void SAL_CALL elementReplaced( const css::container::ContainerEvent& Event ) override + { + OUString sOldComposedName,sNewComposedName; + Event.ReplacedElement >>= sOldComposedName; + Event.Accessor >>= sNewComposedName; + if ( sOldComposedName != sNewComposedName && m_aRefNames.find(sOldComposedName) != m_aRefNames.end() ) + m_pComponent->refreshKeys(); + } + // XEventListener + virtual void SAL_CALL disposing( const EventObject& /*_rSource*/ ) override + { + } + void clear() { m_pComponent = nullptr; } + void add(const OUString& _sRefName) { m_aRefNames.emplace(_sRefName,true); } +}; +} +namespace connectivity +{ + static OUString lcl_getServiceNameForSetting(const Reference< css::sdbc::XConnection >& _xConnection,const OUString& i_sSetting) + { + OUString sSupportService; + Any aValue; + if ( ::dbtools::getDataSourceSetting(_xConnection,i_sSetting,aValue) ) + { + aValue >>= sSupportService; + } + return sSupportService; + } + struct OTableHelperImpl + { + TKeyMap m_aKeys; + // helper services which can be provided by extensions + Reference< css::sdb::tools::XTableRename> m_xRename; + Reference< css::sdb::tools::XTableAlteration> m_xAlter; + Reference< css::sdb::tools::XKeyAlteration> m_xKeyAlter; + Reference< css::sdb::tools::XIndexAlteration> m_xIndexAlter; + + Reference< css::sdbc::XDatabaseMetaData > m_xMetaData; + Reference< css::sdbc::XConnection > m_xConnection; + rtl::Reference<OTableContainerListener> m_xTablePropertyListener; + std::vector< ColumnDesc > m_aColumnDesc; + explicit OTableHelperImpl(const Reference< css::sdbc::XConnection >& _xConnection) + : m_xConnection(_xConnection) + { + try + { + m_xMetaData = m_xConnection->getMetaData(); + Reference<XMultiServiceFactory> xFac(_xConnection,UNO_QUERY); + if ( xFac.is() ) + { + m_xRename.set(xFac->createInstance(lcl_getServiceNameForSetting(m_xConnection,"TableRenameServiceName")),UNO_QUERY); + m_xAlter.set(xFac->createInstance(lcl_getServiceNameForSetting(m_xConnection,"TableAlterationServiceName")),UNO_QUERY); + m_xKeyAlter.set(xFac->createInstance(lcl_getServiceNameForSetting(m_xConnection,"KeyAlterationServiceName")),UNO_QUERY); + m_xIndexAlter.set(xFac->createInstance(lcl_getServiceNameForSetting(m_xConnection,"IndexAlterationServiceName")),UNO_QUERY); + } + } + catch(const Exception&) + { + } + } + }; +} + +OTableHelper::OTableHelper( sdbcx::OCollection* _pTables, + const Reference< XConnection >& _xConnection, + bool _bCase) + :OTable_TYPEDEF(_pTables,_bCase) + ,m_pImpl(new OTableHelperImpl(_xConnection)) +{ +} + +OTableHelper::OTableHelper( sdbcx::OCollection* _pTables, + const Reference< XConnection >& _xConnection, + bool _bCase, + const OUString& Name, + const OUString& Type, + const OUString& Description , + const OUString& SchemaName, + const OUString& CatalogName + ) : OTable_TYPEDEF(_pTables, + _bCase, + Name, + Type, + Description, + SchemaName, + CatalogName) + ,m_pImpl(new OTableHelperImpl(_xConnection)) +{ +} + +OTableHelper::~OTableHelper() +{ +} + +void SAL_CALL OTableHelper::disposing() +{ + ::osl::MutexGuard aGuard(m_aMutex); + if ( m_pImpl->m_xTablePropertyListener.is() ) + { + m_pTables->removeContainerListener(m_pImpl->m_xTablePropertyListener); + m_pImpl->m_xTablePropertyListener->clear(); + m_pImpl->m_xTablePropertyListener.clear(); + } + OTable_TYPEDEF::disposing(); + + m_pImpl->m_xConnection = nullptr; + m_pImpl->m_xMetaData = nullptr; + +} + + +namespace +{ + /** collects ColumnDesc's from a resultset produced by XDatabaseMetaData::getColumns + */ + void lcl_collectColumnDescs_throw( const Reference< XResultSet >& _rxResult, std::vector< ColumnDesc >& _out_rColumns ) + { + Reference< XRow > xRow( _rxResult, UNO_QUERY_THROW ); + OUString sName; + OrdinalPosition nOrdinalPosition( 0 ); + while ( _rxResult->next() ) + { + sName = xRow->getString( 4 ); // COLUMN_NAME + sal_Int32 nField5 = xRow->getInt(5); + OUString aField6 = xRow->getString(6); + sal_Int32 nField7 = xRow->getInt(7) + , nField9 = xRow->getInt(9) + , nField11= xRow->getInt(11); + OUString sField12 = xRow->getString(12) + ,sField13 = xRow->getString(13); + nOrdinalPosition = xRow->getInt( 17 ); // ORDINAL_POSITION + _out_rColumns.push_back( ColumnDesc( sName,nField5,aField6,nField7,nField9,nField11,sField12,sField13, nOrdinalPosition ) ); + } + } + + /** checks a given array of ColumnDesc's whether it has reasonable ordinal positions. If not, + they will be normalized to be the array index. + */ + void lcl_sanitizeColumnDescs( std::vector< ColumnDesc >& _rColumns ) + { + if ( _rColumns.empty() ) + return; + + // collect all used ordinals + std::set< OrdinalPosition > aUsedOrdinals; + for ( const auto& collect : _rColumns ) + aUsedOrdinals.insert( collect.nOrdinalPosition ); + + // we need to have as much different ordinals as we have different columns + bool bDuplicates = aUsedOrdinals.size() != _rColumns.size(); + // and it needs to be a continuous range + size_t nOrdinalsRange = *aUsedOrdinals.rbegin() - *aUsedOrdinals.begin() + 1; + bool bGaps = nOrdinalsRange != _rColumns.size(); + + // if that's not the case, normalize it + if ( bGaps || bDuplicates ) + { + OSL_FAIL( "lcl_sanitizeColumnDescs: database did provide invalid ORDINAL_POSITION values!" ); + + OrdinalPosition nNormalizedPosition = 1; + for ( auto& normalize : _rColumns ) + normalize.nOrdinalPosition = nNormalizedPosition++; + return; + } + + // what's left is that the range might not be from 1 to <column count>, but for instance + // 0 to <column count>-1. + size_t nOffset = *aUsedOrdinals.begin() - 1; + for ( auto& offset : _rColumns ) + offset.nOrdinalPosition -= nOffset; + } +} + + +void OTableHelper::refreshColumns() +{ + ::std::vector< OUString> aVector; + if(!isNew()) + { + Any aCatalog; + if ( !m_CatalogName.isEmpty() ) + aCatalog <<= m_CatalogName; + + ::utl::SharedUNOComponent< XResultSet > xResult( getMetaData()->getColumns( + aCatalog, + m_SchemaName, + m_Name, + "%" + ) ); + + // collect the column names, together with their ordinal position + m_pImpl->m_aColumnDesc.clear(); + lcl_collectColumnDescs_throw( xResult, m_pImpl->m_aColumnDesc ); + + // ensure that the ordinal positions as obtained from the meta data do make sense + lcl_sanitizeColumnDescs( m_pImpl->m_aColumnDesc ); + + // sort by ordinal position + std::map< OrdinalPosition, OUString > aSortedColumns; + for (const auto& copy : m_pImpl->m_aColumnDesc) + aSortedColumns[ copy.nOrdinalPosition ] = copy.sName; + + // copy them to aVector, now that we have the proper ordering + std::transform( + aSortedColumns.begin(), + aSortedColumns.end(), + std::insert_iterator< ::std::vector< OUString> >( aVector, aVector.begin() ), + ::o3tl::select2nd< std::map< OrdinalPosition, OUString >::value_type >() + ); + } + + if(m_xColumns) + m_xColumns->reFill(aVector); + else + m_xColumns.reset(createColumns(aVector)); +} + +const ColumnDesc* OTableHelper::getColumnDescription(const OUString& _sName) const +{ + const ColumnDesc* pRet = nullptr; + auto aIter = std::find_if(m_pImpl->m_aColumnDesc.begin(), m_pImpl->m_aColumnDesc.end(), + [&_sName](const ColumnDesc& rColumnDesc) { return rColumnDesc.sName == _sName; }); + if (aIter != m_pImpl->m_aColumnDesc.end()) + pRet = &*aIter; + return pRet; +} + +void OTableHelper::refreshPrimaryKeys(::std::vector< OUString>& _rNames) +{ + Any aCatalog; + if ( !m_CatalogName.isEmpty() ) + aCatalog <<= m_CatalogName; + Reference< XResultSet > xResult = getMetaData()->getPrimaryKeys(aCatalog,m_SchemaName,m_Name); + + if ( xResult.is() ) + { + auto pKeyProps = std::make_shared<sdbcx::KeyProperties>(OUString(),KeyType::PRIMARY,0,0); + OUString aPkName; + bool bAlreadyFetched = false; + const Reference< XRow > xRow(xResult,UNO_QUERY); + while ( xResult->next() ) + { + pKeyProps->m_aKeyColumnNames.push_back(xRow->getString(4)); + if ( !bAlreadyFetched ) + { + aPkName = xRow->getString(6); + SAL_WARN_IF(xRow->wasNull(),"connectivity.commontools", "NULL Primary Key name"); + SAL_WARN_IF(aPkName.isEmpty(),"connectivity.commontools", "empty Primary Key name"); + bAlreadyFetched = true; + } + } + + if(bAlreadyFetched) + { + SAL_WARN_IF(aPkName.isEmpty(),"connectivity.commontools", "empty Primary Key name"); + SAL_WARN_IF(pKeyProps->m_aKeyColumnNames.empty(),"connectivity.commontools", "Primary Key has no columns"); + m_pImpl->m_aKeys.emplace(aPkName,pKeyProps); + _rNames.push_back(aPkName); + } + } // if ( xResult.is() && xResult->next() ) + ::comphelper::disposeComponent(xResult); +} + +void OTableHelper::refreshForeignKeys(::std::vector< OUString>& _rNames) +{ + Any aCatalog; + if ( !m_CatalogName.isEmpty() ) + aCatalog <<= m_CatalogName; + Reference< XResultSet > xResult = getMetaData()->getImportedKeys(aCatalog,m_SchemaName,m_Name); + Reference< XRow > xRow(xResult,UNO_QUERY); + + if ( !xRow.is() ) + return; + + std::shared_ptr<sdbcx::KeyProperties> pKeyProps; + OUString aName,sCatalog,aSchema,sOldFKName; + while( xResult->next() ) + { + // this must be outside the "if" because we have to call in a right order + sCatalog = xRow->getString(1); + if ( xRow->wasNull() ) + sCatalog.clear(); + aSchema = xRow->getString(2); + aName = xRow->getString(3); + + const OUString sForeignKeyColumn = xRow->getString(8); + const sal_Int32 nUpdateRule = xRow->getInt(10); + const sal_Int32 nDeleteRule = xRow->getInt(11); + const OUString sFkName = xRow->getString(12); + + if ( !sFkName.isEmpty() && !xRow->wasNull() ) + { + if ( sOldFKName != sFkName ) + { + if ( pKeyProps ) + m_pImpl->m_aKeys.emplace(sOldFKName,pKeyProps); + + const OUString sReferencedName = ::dbtools::composeTableName(getMetaData(),sCatalog,aSchema,aName,false,::dbtools::EComposeRule::InDataManipulation); + pKeyProps = std::make_shared<sdbcx::KeyProperties>(sReferencedName,KeyType::FOREIGN,nUpdateRule,nDeleteRule); + pKeyProps->m_aKeyColumnNames.push_back(sForeignKeyColumn); + _rNames.push_back(sFkName); + if ( m_pTables->hasByName(sReferencedName) ) + { + if ( !m_pImpl->m_xTablePropertyListener.is() ) + m_pImpl->m_xTablePropertyListener = new OTableContainerListener(this); + m_pTables->addContainerListener(m_pImpl->m_xTablePropertyListener); + m_pImpl->m_xTablePropertyListener->add(sReferencedName); + } // if ( m_pTables->hasByName(sReferencedName) ) + sOldFKName = sFkName; + } // if ( sOldFKName != sFkName ) + else if ( pKeyProps ) + { + pKeyProps->m_aKeyColumnNames.push_back(sForeignKeyColumn); + } + } + } // while( xResult->next() ) + if ( pKeyProps ) + m_pImpl->m_aKeys.emplace(sOldFKName,pKeyProps); + ::comphelper::disposeComponent(xResult); +} + +void OTableHelper::refreshKeys() +{ + m_pImpl->m_aKeys.clear(); + + ::std::vector< OUString> aNames; + + if(!isNew()) + { + refreshPrimaryKeys(aNames); + refreshForeignKeys(aNames); + m_xKeys.reset(createKeys(aNames)); + } // if(!isNew()) + else if (!m_xKeys ) + m_xKeys.reset(createKeys(aNames)); + /*if(m_pKeys) + m_pKeys->reFill(aVector); + else*/ + +} + +void OTableHelper::refreshIndexes() +{ + ::std::vector< OUString> aVector; + if(!isNew()) + { + // fill indexes + Any aCatalog; + if ( !m_CatalogName.isEmpty() ) + aCatalog <<= m_CatalogName; + Reference< XResultSet > xResult = getMetaData()->getIndexInfo(aCatalog,m_SchemaName,m_Name,false,false); + + if(xResult.is()) + { + Reference< XRow > xRow(xResult,UNO_QUERY); + OUString sCatalogSep = getMetaData()->getCatalogSeparator(); + OUString sPreviousRoundName; + while( xResult->next() ) + { + OUString aName = xRow->getString(5); + if(!aName.isEmpty()) + aName += sCatalogSep; + aName += xRow->getString(6); + if ( !aName.isEmpty() ) + { + // don't insert the name if the last one we inserted was the same + if (sPreviousRoundName != aName) + aVector.push_back(aName); + } + sPreviousRoundName = aName; + } + ::comphelper::disposeComponent(xResult); + } + } + + if(m_xIndexes) + m_xIndexes->reFill(aVector); + else + m_xIndexes.reset(createIndexes(aVector)); +} + +OUString OTableHelper::getRenameStart() const +{ + OUString sSql("RENAME "); + if ( m_Type == "VIEW" ) + sSql += " VIEW "; + else + sSql += " TABLE "; + + return sSql; +} + +// XRename +void SAL_CALL OTableHelper::rename( const OUString& newName ) +{ + ::osl::MutexGuard aGuard(m_aMutex); + checkDisposed( +#ifdef __GNUC__ + ::connectivity::sdbcx::OTableDescriptor_BASE::rBHelper.bDisposed +#else + rBHelper.bDisposed +#endif + ); + + if(!isNew()) + { + if ( m_pImpl->m_xRename.is() ) + { + m_pImpl->m_xRename->rename(this,newName); + } + else + { + OUString sSql = getRenameStart(); + + OUString sCatalog,sSchema,sTable; + ::dbtools::qualifiedNameComponents(getMetaData(),newName,sCatalog,sSchema,sTable,::dbtools::EComposeRule::InDataManipulation); + + OUString sComposedName; + sComposedName = ::dbtools::composeTableName(getMetaData(),m_CatalogName,m_SchemaName,m_Name,true,::dbtools::EComposeRule::InDataManipulation); + sSql += sComposedName + + " TO "; + sComposedName = ::dbtools::composeTableName(getMetaData(),sCatalog,sSchema,sTable,true,::dbtools::EComposeRule::InDataManipulation); + sSql += sComposedName; + + Reference< XStatement > xStmt = m_pImpl->m_xConnection->createStatement( ); + if ( xStmt.is() ) + { + xStmt->execute(sSql); + ::comphelper::disposeComponent(xStmt); + } + } + + OTable_TYPEDEF::rename(newName); + } + else + ::dbtools::qualifiedNameComponents(getMetaData(),newName,m_CatalogName,m_SchemaName,m_Name,::dbtools::EComposeRule::InTableDefinitions); +} + +Reference< XDatabaseMetaData> OTableHelper::getMetaData() const +{ + return m_pImpl->m_xMetaData; +} + +void SAL_CALL OTableHelper::alterColumnByIndex( sal_Int32 index, const Reference< XPropertySet >& descriptor ) +{ + ::osl::MutexGuard aGuard(m_aMutex); + checkDisposed( +#ifdef __GNUC__ + ::connectivity::sdbcx::OTableDescriptor_BASE::rBHelper.bDisposed +#else + rBHelper.bDisposed +#endif + ); + + Reference< XPropertySet > xOld( + m_xColumns->getByIndex(index), css::uno::UNO_QUERY); + if(xOld.is()) + alterColumnByName(getString(xOld->getPropertyValue(OMetaConnection::getPropMap().getNameByIndex(PROPERTY_ID_NAME))),descriptor); +} + + +OUString SAL_CALL OTableHelper::getName() +{ + OUString sComposedName = ::dbtools::composeTableName(getMetaData(),m_CatalogName,m_SchemaName,m_Name,false,::dbtools::EComposeRule::InDataManipulation); + return sComposedName; +} + +const OUString & OTableHelper::getTableName() +{ + return m_Name; +} + +std::shared_ptr<sdbcx::KeyProperties> OTableHelper::getKeyProperties(const OUString& _sName) const +{ + std::shared_ptr<sdbcx::KeyProperties> pKeyProps; + TKeyMap::const_iterator aFind = m_pImpl->m_aKeys.find(_sName); + if ( aFind != m_pImpl->m_aKeys.end() ) + { + pKeyProps = aFind->second; + } + else // only a fall back + { + OSL_FAIL("No key with the given name found"); + pKeyProps = std::make_shared<sdbcx::KeyProperties>(); + } + + return pKeyProps; +} + +void OTableHelper::addKey(const OUString& _sName,const std::shared_ptr<sdbcx::KeyProperties>& _aKeyProperties) +{ + m_pImpl->m_aKeys.emplace(_sName,_aKeyProperties); +} + +OUString OTableHelper::getTypeCreatePattern() const +{ + return OUString(); +} + +Reference< XConnection> const & OTableHelper::getConnection() const +{ + return m_pImpl->m_xConnection; +} + +Reference< css::sdb::tools::XTableRename> const & OTableHelper::getRenameService() const +{ + return m_pImpl->m_xRename; +} + +Reference< css::sdb::tools::XTableAlteration> const & OTableHelper::getAlterService() const +{ + return m_pImpl->m_xAlter; +} + +Reference< css::sdb::tools::XKeyAlteration> const & OTableHelper::getKeyService() const +{ + return m_pImpl->m_xKeyAlter; +} + +Reference< css::sdb::tools::XIndexAlteration> const & OTableHelper::getIndexService() const +{ + return m_pImpl->m_xIndexAlter; +} + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |