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| -rw-r--r-- | connectivity/source/sdbcx/VCollection.cxx | 582 |
1 files changed, 582 insertions, 0 deletions
diff --git a/connectivity/source/sdbcx/VCollection.cxx b/connectivity/source/sdbcx/VCollection.cxx new file mode 100644 index 000000000..804c8c361 --- /dev/null +++ b/connectivity/source/sdbcx/VCollection.cxx @@ -0,0 +1,582 @@ +/* -*- 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 <algorithm> +#include <com/sun/star/container/ElementExistException.hpp> +#include <com/sun/star/lang/IndexOutOfBoundsException.hpp> +#include <connectivity/sdbcx/VCollection.hxx> +#include <connectivity/sdbcx/VDescriptor.hxx> +#include <com/sun/star/sdbc/SQLException.hpp> +#include <connectivity/dbexception.hxx> +#include <comphelper/enumhelper.hxx> +#include <comphelper/types.hxx> +#include <comphelper/property.hxx> +#include <comphelper/servicehelper.hxx> +#include <cppuhelper/exc_hlp.hxx> +#include <o3tl/unreachable.hxx> +#include <TConnection.hxx> +#include <strings.hrc> +#include <resource/sharedresources.hxx> + +using namespace connectivity::sdbcx; +using namespace connectivity; +using namespace comphelper; +using namespace ::cppu; +using namespace ::com::sun::star::beans; +using namespace ::com::sun::star::uno; +using namespace ::com::sun::star::lang; +using namespace ::com::sun::star::sdbc; +using namespace ::com::sun::star::container; +using namespace ::com::sun::star::util; + +namespace +{ + template < typename T> class OHardRefMap : public connectivity::sdbcx::IObjectCollection + { + typedef std::multimap< OUString, T , ::comphelper::UStringMixLess> ObjectMap; + typedef typename ObjectMap::iterator ObjectIter; + typedef typename ObjectMap::value_type ObjectEntry; + + // private: + // this combination of map and vector is used to have a fast name and index access + std::vector< ObjectIter > m_aElements; // hold the iterators which point to map + ObjectMap m_aNameMap; // hold the elements and a name + public: + OHardRefMap(bool _bCase) + : m_aNameMap(_bCase) + { + } + + virtual bool exists(const OUString& _sName ) override + { + return m_aNameMap.find(_sName) != m_aNameMap.end(); + } + + virtual bool empty() override + { + return m_aNameMap.empty(); + } + + virtual void swapAll() override + { + std::vector< ObjectIter >(m_aElements).swap(m_aElements); + ObjectMap(m_aNameMap).swap(m_aNameMap); + } + + virtual void swap() override + { + std::vector< ObjectIter >().swap(m_aElements); + + OSL_ENSURE( m_aNameMap.empty(), "swap: what did disposeElements do?" ); + ObjectMap( m_aNameMap ).swap( m_aNameMap ); + // Note that it's /important/ to construct the new ObjectMap from m_aNameMap before + // swapping. This way, it's ensured that the compare object held by these maps is preserved + // during the swap. If we would not do this, the UStringMixLess instance which is used would be + // default constructed (instead of being constructed from the same instance in m_aNameMap), and + // it's case-sensitive flag would have an unpredictable value. + } + + virtual void clear() override + { + m_aElements.clear(); + m_aNameMap.clear(); + } + + virtual void insert(const OUString& _sName,const ObjectType& _xObject) override + { + m_aElements.push_back(m_aNameMap.insert(m_aNameMap.begin(), ObjectEntry(_sName,_xObject))); + } + + virtual void reFill(const ::std::vector< OUString> &_rVector) override + { + OSL_ENSURE(m_aNameMap.empty(),"OCollection::reFill: collection isn't empty"); + m_aElements.reserve(_rVector.size()); + + for (auto const& elem : _rVector) + m_aElements.push_back(m_aNameMap.insert(m_aNameMap.begin(), ObjectEntry(elem,ObjectType()))); + } + + virtual bool rename(const OUString& _sOldName, const OUString& _sNewName) override + { + bool bRet = false; + ObjectIter aIter = m_aNameMap.find(_sOldName); + if ( aIter != m_aNameMap.end() ) + { + typename std::vector< ObjectIter >::iterator aFind = std::find(m_aElements.begin(),m_aElements.end(),aIter); + if(m_aElements.end() != aFind) + { + (*aFind) = m_aNameMap.insert(m_aNameMap.begin(), ObjectEntry(_sNewName,(*aFind)->second)); + m_aNameMap.erase(aIter); + + bRet = true; + } + } + return bRet; + } + + virtual sal_Int32 size() override + { + return static_cast<sal_Int32>(m_aNameMap.size()); + } + + virtual Sequence< OUString > getElementNames() override + { + Sequence< OUString > aNameList(m_aElements.size()); + + OUString* pStringArray = aNameList.getArray(); + for(const auto& rIter : m_aElements) + { + *pStringArray = rIter->first; + ++pStringArray; + } + + return aNameList; + } + + virtual OUString getName(sal_Int32 _nIndex) override + { + return m_aElements[_nIndex]->first; + } + + virtual void disposeAndErase(sal_Int32 _nIndex) override + { + OSL_ENSURE(_nIndex >= 0 && _nIndex < static_cast<sal_Int32>(m_aElements.size()),"Illegal argument!"); + Reference<XComponent> xComp(m_aElements[_nIndex]->second.get(),UNO_QUERY); + ::comphelper::disposeComponent(xComp); + m_aElements[_nIndex]->second = T(); + + OUString sName = m_aElements[_nIndex]->first; + m_aElements.erase(m_aElements.begin()+_nIndex); + m_aNameMap.erase(sName); + } + + virtual void disposeElements() override + { + for (auto & name : m_aNameMap) + { + Reference<XComponent> xComp(name.second.get(),UNO_QUERY); + if ( xComp.is() ) + { + ::comphelper::disposeComponent(xComp); + name.second = T(); + } + } + m_aElements.clear(); + m_aNameMap.clear(); + } + + virtual sal_Int32 findColumn( const OUString& columnName ) override + { + ObjectIter aIter = m_aNameMap.find(columnName); + OSL_ENSURE(aIter != m_aNameMap.end(),"findColumn:: Illegal name!"); + return m_aElements.size() - (m_aElements.end() - std::find(m_aElements.begin(),m_aElements.end(),aIter)); + } + + virtual ObjectType getObject(sal_Int32 _nIndex) override + { + OSL_ENSURE(_nIndex >= 0 && _nIndex < static_cast<sal_Int32>(m_aElements.size()),"Illegal argument!"); + return m_aElements[_nIndex]->second; + } + + virtual ObjectType getObject(const OUString& columnName) override + { + return m_aNameMap.find(columnName)->second; + } + + virtual void setObject(sal_Int32 _nIndex,const ObjectType& _xObject) override + { + OSL_ENSURE(_nIndex >= 0 && _nIndex < static_cast<sal_Int32>(m_aElements.size()),"Illegal argument!"); + m_aElements[_nIndex]->second = _xObject; + } + + bool isCaseSensitive() const override + { + return m_aNameMap.key_comp().isCaseSensitive(); + } + + }; +} + +IObjectCollection::~IObjectCollection() {} + +IMPLEMENT_SERVICE_INFO(OCollection,"com.sun.star.sdbcx.VContainer" , "com.sun.star.sdbcx.Container") + +OCollection::OCollection(::cppu::OWeakObject& _rParent + , bool _bCase + , ::osl::Mutex& _rMutex + , const ::std::vector< OUString> &_rVector + , bool _bUseIndexOnly + , bool _bUseHardRef) + :m_aContainerListeners(_rMutex) + ,m_aRefreshListeners(_rMutex) + ,m_rParent(_rParent) + ,m_rMutex(_rMutex) + ,m_bUseIndexOnly(_bUseIndexOnly) +{ + if ( _bUseHardRef ) + { + m_pElements.reset(new OHardRefMap< ObjectType >(_bCase)); + } + else + { + m_pElements.reset(new OHardRefMap< WeakReference< XPropertySet> >(_bCase)); + } + m_pElements->reFill(_rVector); +} + +OCollection::~OCollection() +{ +} + +Any SAL_CALL OCollection::queryInterface( const Type & rType ) +{ + if ( m_bUseIndexOnly && rType == cppu::UnoType<XNameAccess>::get() ) + { + return Any(); + } + return OCollectionBase::queryInterface( rType ); +} + +Sequence< Type > SAL_CALL OCollection::getTypes() +{ + if ( m_bUseIndexOnly ) + { + Sequence< Type > aTypes(OCollectionBase::getTypes()); + Type* pBegin = aTypes.getArray(); + Type* pEnd = pBegin + aTypes.getLength(); + + std::vector<Type> aOwnTypes; + aOwnTypes.reserve(aTypes.getLength()); + Type aType = cppu::UnoType<XNameAccess>::get(); + for(;pBegin != pEnd; ++pBegin) + { + if ( *pBegin != aType ) + aOwnTypes.push_back(*pBegin); + } + return Sequence< Type >(aOwnTypes.data(), aOwnTypes.size()); + } + return OCollectionBase::getTypes( ); +} + +void OCollection::clear_NoDispose() +{ + ::osl::MutexGuard aGuard(m_rMutex); + + m_pElements->clear(); + m_pElements->swapAll(); +} + + +void OCollection::disposing() +{ + m_aContainerListeners.disposeAndClear(EventObject(static_cast<XTypeProvider*>(this))); + m_aRefreshListeners.disposeAndClear(EventObject(static_cast<XTypeProvider*>(this))); + + ::osl::MutexGuard aGuard(m_rMutex); + + disposeElements(); + + m_pElements->swap(); +} + +Any SAL_CALL OCollection::getByIndex( sal_Int32 Index ) +{ + ::osl::MutexGuard aGuard(m_rMutex); + if (Index < 0 || Index >= m_pElements->size() ) + throw IndexOutOfBoundsException(OUString::number(Index),static_cast<XTypeProvider*>(this)); + + return Any(getObject(Index)); +} + +Any SAL_CALL OCollection::getByName( const OUString& aName ) +{ + ::osl::MutexGuard aGuard(m_rMutex); + + if ( !m_pElements->exists(aName) ) + { + ::connectivity::SharedResources aResources; + const OUString sError( aResources.getResourceStringWithSubstitution( + STR_NO_ELEMENT_NAME, + "$name$", aName + ) ); + throw NoSuchElementException( sError, static_cast< XTypeProvider* >( this ) ); + } + + return Any(getObject(m_pElements->findColumn(aName))); +} + +Sequence< OUString > SAL_CALL OCollection::getElementNames( ) +{ + ::osl::MutexGuard aGuard(m_rMutex); + return m_pElements->getElementNames(); +} + +void SAL_CALL OCollection::refresh( ) +{ + ::osl::MutexGuard aGuard(m_rMutex); + + disposeElements(); + + impl_refresh(); + EventObject aEvt(static_cast<XTypeProvider*>(this)); + m_aRefreshListeners.notifyEach( &XRefreshListener::refreshed, aEvt ); +} + +void OCollection::reFill(const ::std::vector< OUString> &_rVector) +{ + m_pElements->reFill(_rVector); +} + +// XDataDescriptorFactory +Reference< XPropertySet > SAL_CALL OCollection::createDataDescriptor( ) +{ + ::osl::MutexGuard aGuard(m_rMutex); + + return createDescriptor(); +} + +OUString OCollection::getNameForObject(const ObjectType& _xObject) +{ + OSL_ENSURE(_xObject.is(),"OCollection::getNameForObject: Object is NULL!"); + OUString sName; + _xObject->getPropertyValue(OMetaConnection::getPropMap().getNameByIndex(PROPERTY_ID_NAME)) >>= sName; + return sName; +} + +// XAppend +void SAL_CALL OCollection::appendByDescriptor( const Reference< XPropertySet >& descriptor ) +{ + ::osl::ClearableMutexGuard aGuard(m_rMutex); + + OUString sName = getNameForObject( descriptor ); + + if ( m_pElements->exists(sName) ) + throw ElementExistException(sName,static_cast<XTypeProvider*>(this)); + + ObjectType xNewlyCreated = appendObject( sName, descriptor ); + if ( !xNewlyCreated.is() ) + throw RuntimeException(); + + ODescriptor* pDescriptor = comphelper::getFromUnoTunnel<ODescriptor>( xNewlyCreated ); + if ( pDescriptor ) + pDescriptor->setNew( false ); + + sName = getNameForObject( xNewlyCreated ); + if ( !m_pElements->exists( sName ) ) // this may happen when the derived class included it itself + m_pElements->insert( sName, xNewlyCreated ); + + // notify our container listeners + ContainerEvent aEvent(static_cast<XContainer*>(this), Any(sName), Any(xNewlyCreated), Any()); + aGuard.clear(); + m_aContainerListeners.notifyEach( &XContainerListener::elementInserted, aEvent ); +} + +// XDrop +void SAL_CALL OCollection::dropByName( const OUString& elementName ) +{ + ::osl::MutexGuard aGuard(m_rMutex); + + if ( !m_pElements->exists(elementName) ) + throw NoSuchElementException(elementName,static_cast<XTypeProvider*>(this)); + + dropImpl(m_pElements->findColumn(elementName)); +} + +void SAL_CALL OCollection::dropByIndex( sal_Int32 index ) +{ + ::osl::MutexGuard aGuard(m_rMutex); + if(index <0 || index >= getCount()) + throw IndexOutOfBoundsException(OUString::number(index),static_cast<XTypeProvider*>(this)); + + dropImpl(index); +} + +void OCollection::dropImpl(sal_Int32 _nIndex, bool _bReallyDrop) +{ + OUString elementName = m_pElements->getName(_nIndex); + + if ( _bReallyDrop ) + dropObject(_nIndex,elementName); + + m_pElements->disposeAndErase(_nIndex); + + // notify our container listeners + notifyElementRemoved(elementName); +} + +void OCollection::notifyElementRemoved(const OUString& _sName) +{ + ContainerEvent aEvent(static_cast<XContainer*>(this), Any(_sName), Any(), Any()); + // note that xExistent may be empty, in case somebody removed the data source while it is not alive at this moment + OInterfaceIteratorHelper3 aListenerLoop(m_aContainerListeners); + while (aListenerLoop.hasMoreElements()) + aListenerLoop.next()->elementRemoved(aEvent); +} + +sal_Int32 SAL_CALL OCollection::findColumn( const OUString& columnName ) +{ + if ( !m_pElements->exists(columnName) ) + { + ::dbtools::throwInvalidColumnException( columnName, static_cast< XIndexAccess*>(this) ); + O3TL_UNREACHABLE; + } + + return m_pElements->findColumn(columnName) + 1; // because columns start at one +} + +Reference< XEnumeration > SAL_CALL OCollection::createEnumeration( ) +{ + ::osl::MutexGuard aGuard(m_rMutex); + return new OEnumerationByIndex( static_cast< XIndexAccess*>(this)); +} + +void SAL_CALL OCollection::addContainerListener( const Reference< XContainerListener >& _rxListener ) +{ + m_aContainerListeners.addInterface(_rxListener); +} + + +void SAL_CALL OCollection::removeContainerListener( const Reference< XContainerListener >& _rxListener ) +{ + m_aContainerListeners.removeInterface(_rxListener); +} + +void SAL_CALL OCollection::acquire() noexcept +{ + m_rParent.acquire(); +} + +void SAL_CALL OCollection::release() noexcept +{ + m_rParent.release(); +} + +Type SAL_CALL OCollection::getElementType( ) +{ + return cppu::UnoType<XPropertySet>::get(); +} + +sal_Bool SAL_CALL OCollection::hasElements( ) +{ + ::osl::MutexGuard aGuard(m_rMutex); + return !m_pElements->empty(); +} + +sal_Int32 SAL_CALL OCollection::getCount( ) +{ + ::osl::MutexGuard aGuard(m_rMutex); + return m_pElements->size(); +} + +sal_Bool SAL_CALL OCollection::hasByName( const OUString& aName ) +{ + ::osl::MutexGuard aGuard(m_rMutex); + return m_pElements->exists(aName); +} + +void SAL_CALL OCollection::addRefreshListener( const Reference< XRefreshListener >& l ) +{ + m_aRefreshListeners.addInterface(l); +} + +void SAL_CALL OCollection::removeRefreshListener( const Reference< XRefreshListener >& l ) +{ + m_aRefreshListeners.removeInterface(l); +} + +void OCollection::insertElement(const OUString& _sElementName,const ObjectType& _xElement) +{ + OSL_ENSURE(!m_pElements->exists(_sElementName),"Element already exists"); + if ( !m_pElements->exists(_sElementName) ) + m_pElements->insert(_sElementName,_xElement); +} + +void OCollection::renameObject(const OUString& _sOldName, const OUString& _sNewName) +{ + OSL_ENSURE(m_pElements->exists(_sOldName),"Element doesn't exist"); + OSL_ENSURE(!m_pElements->exists(_sNewName),"Element already exists"); + OSL_ENSURE(!_sNewName.isEmpty(),"New name must not be empty!"); + OSL_ENSURE(!_sOldName.isEmpty(),"Old name must not be empty!"); + + if ( m_pElements->rename(_sOldName,_sNewName) ) + { + ContainerEvent aEvent(static_cast<XContainer*>(this), Any(_sNewName), Any(m_pElements->getObject(_sNewName)),Any(_sOldName)); + // note that xExistent may be empty, in case somebody removed the data source while it is not alive at this moment + OInterfaceIteratorHelper3 aListenerLoop(m_aContainerListeners); + while (aListenerLoop.hasMoreElements()) + aListenerLoop.next()->elementReplaced(aEvent); + } +} + +ObjectType OCollection::getObject(sal_Int32 _nIndex) +{ + ObjectType xName = m_pElements->getObject(_nIndex); + if ( !xName.is() ) + { + try + { + xName = createObject(m_pElements->getName(_nIndex)); + } + catch(const SQLException& e) + { + css::uno::Any anyEx = cppu::getCaughtException(); + try + { + dropImpl(_nIndex,false); + } + catch(const Exception& ) + { + } + throw WrappedTargetException(e.Message,static_cast<XTypeProvider*>(this),anyEx); + } + m_pElements->setObject(_nIndex,xName); + } + return xName; +} + +void OCollection::disposeElements() +{ + m_pElements->disposeElements(); +} + +Reference< XPropertySet > OCollection::createDescriptor() +{ + OSL_FAIL("createDescriptor() needs to be overridden when used!"); + throw SQLException(); +} + +ObjectType OCollection::cloneDescriptor( const ObjectType& _descriptor ) +{ + ObjectType xNewDescriptor( createDescriptor() ); + ::comphelper::copyProperties( _descriptor, xNewDescriptor ); + return xNewDescriptor; +} + +ObjectType OCollection::appendObject( const OUString& /*_rForName*/, const Reference< XPropertySet >& descriptor ) +{ + return cloneDescriptor( descriptor ); +} + +void OCollection::dropObject(sal_Int32 /*_nPos*/, const OUString& /*_sElementName*/) +{ +} + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |