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Diffstat (limited to 'ucb/source/cacher/cachedcontentresultset.cxx')
| -rw-r--r-- | ucb/source/cacher/cachedcontentresultset.cxx | 2099 |
1 files changed, 2099 insertions, 0 deletions
diff --git a/ucb/source/cacher/cachedcontentresultset.cxx b/ucb/source/cacher/cachedcontentresultset.cxx new file mode 100644 index 000000000..c169a3734 --- /dev/null +++ b/ucb/source/cacher/cachedcontentresultset.cxx @@ -0,0 +1,2099 @@ +/* -*- 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 "cachedcontentresultset.hxx" +#include <com/sun/star/sdbc/FetchDirection.hpp> +#include <com/sun/star/sdbc/SQLException.hpp> +#include <com/sun/star/ucb/FetchError.hpp> +#include <com/sun/star/beans/PropertyAttribute.hpp> +#include <com/sun/star/script/CannotConvertException.hpp> +#include <com/sun/star/script/Converter.hpp> +#include <com/sun/star/lang/WrappedTargetRuntimeException.hpp> +#include <rtl/ustring.hxx> +#include <o3tl/any.hxx> +#include <osl/diagnose.h> +#include <cppuhelper/exc_hlp.hxx> +#include <cppuhelper/queryinterface.hxx> +#include <ucbhelper/macros.hxx> +#include <optional> +#include <string_view> + +using namespace com::sun::star::beans; +using namespace com::sun::star::lang; +using namespace com::sun::star::script; +using namespace com::sun::star::sdbc; +using namespace com::sun::star::ucb; +using namespace com::sun::star::uno; +using namespace com::sun::star::util; +using namespace cppu; + + +#define COMSUNSTARUCBCCRS_DEFAULT_FETCH_SIZE 256 +#define COMSUNSTARUCBCCRS_DEFAULT_FETCH_DIRECTION FetchDirection::FORWARD + +//if you change this function template please pay attention to +//function getObject, where this is similar implemented + +template<typename T> T CachedContentResultSet::rowOriginGet( + T (SAL_CALL css::sdbc::XRow::* f)(sal_Int32), sal_Int32 columnIndex) +{ + impl_EnsureNotDisposed(); + osl::ResettableMutexGuard aGuard(m_aMutex); + sal_Int32 nRow = m_nRow; + sal_Int32 nFetchSize = m_nFetchSize; + sal_Int32 nFetchDirection = m_nFetchDirection; + if( !m_aCache.hasRow( nRow ) ) + { + bool isCleared = false; + if( !m_aCache.hasCausedException( nRow ) ) + { + if( !m_xFetchProvider.is() ) + { + OSL_FAIL( "broadcaster was disposed already" ); + throw SQLException(); + } + aGuard.clear(); + isCleared = true; + if( impl_isForwardOnly() ) + applyPositionToOrigin( nRow ); + + impl_fetchData( nRow, nFetchSize, nFetchDirection ); + } + if (isCleared) + { + aGuard.reset(); + } + if( !m_aCache.hasRow( nRow ) ) + { + m_bLastReadWasFromCache = false; + aGuard.clear(); + applyPositionToOrigin( nRow ); + impl_init_xRowOrigin(); + return (m_xRowOrigin.get()->*f)( columnIndex ); + } + } + const Any& rValue = m_aCache.getAny( nRow, columnIndex ); + T aRet = T(); + m_bLastReadWasFromCache = true; + m_bLastCachedReadWasNull = !( rValue >>= aRet ); + /* Last chance. Try type converter service... */ + if ( m_bLastCachedReadWasNull && rValue.hasValue() ) + { + Reference< XTypeConverter > xConverter = getTypeConverter(); + if ( xConverter.is() ) + { + try + { + Any aConvAny = xConverter->convertTo( + rValue, + cppu::UnoType<T>::get() ); + m_bLastCachedReadWasNull = !( aConvAny >>= aRet ); + } + catch (const IllegalArgumentException&) + { + } + catch (const CannotConvertException&) + { + } + } + } + return aRet; +} + + +// CCRS_Cache methods + + +CachedContentResultSet::CCRS_Cache::CCRS_Cache( + const Reference< XContentIdentifierMapping > & xMapping ) + : m_xContentIdentifierMapping( xMapping ) +{ +} + +CachedContentResultSet::CCRS_Cache::~CCRS_Cache() +{ +} + +void CachedContentResultSet::CCRS_Cache + ::clear() +{ + m_pResult.reset(); + m_pMappedReminder.reset(); +} + +void CachedContentResultSet::CCRS_Cache + ::loadData( const FetchResult& rResult ) +{ + clear(); + m_pResult = rResult; +} + +bool CachedContentResultSet::CCRS_Cache + ::hasRow( sal_Int32 row ) const +{ + if( !m_pResult ) + return false; + sal_Int32 nStart = m_pResult->StartIndex; + sal_Int32 nEnd = nStart; + if( m_pResult->Orientation ) + nEnd += m_pResult->Rows.getLength() - 1; + else + nStart -= m_pResult->Rows.getLength() + 1; + + return nStart <= row && row <= nEnd; +} + +sal_Int32 CachedContentResultSet::CCRS_Cache + ::getMaxRow() const +{ + if( !m_pResult ) + return 0; + sal_Int32 nEnd = m_pResult->StartIndex; + if( m_pResult->Orientation ) + return nEnd + m_pResult->Rows.getLength() - 1; + else + return nEnd; +} + +bool CachedContentResultSet::CCRS_Cache + ::hasKnownLast() const +{ + if( !m_pResult ) + return false; + + return ( m_pResult->FetchError & FetchError::ENDOFDATA ) + && m_pResult->Orientation + && m_pResult->Rows.hasElements(); +} + +bool CachedContentResultSet::CCRS_Cache + ::hasCausedException( sal_Int32 nRow ) const +{ + if( !m_pResult ) + return false; + if( !( m_pResult->FetchError & FetchError::EXCEPTION ) ) + return false; + + sal_Int32 nEnd = m_pResult->StartIndex; + if( m_pResult->Orientation ) + nEnd += m_pResult->Rows.getLength(); + + return nRow == nEnd+1; +} + +Any& CachedContentResultSet::CCRS_Cache + ::getRowAny( sal_Int32 nRow ) +{ + if( !nRow ) + throw SQLException(); + if( !m_pResult ) + throw SQLException(); + if( !hasRow( nRow ) ) + throw SQLException(); + + sal_Int32 nDiff = nRow - m_pResult->StartIndex; + if( nDiff < 0 ) + nDiff *= -1; + + return m_pResult->Rows.getArray()[nDiff]; +} + +void CachedContentResultSet::CCRS_Cache + ::remindMapped( sal_Int32 nRow ) +{ + //remind that this row was mapped + if( !m_pResult ) + return; + sal_Int32 nDiff = nRow - m_pResult->StartIndex; + if( nDiff < 0 ) + nDiff *= -1; + Sequence< sal_Bool >& rMappedReminder = getMappedReminder(); + if( nDiff < rMappedReminder.getLength() ) + { + sal_Bool* pMappedReminder = rMappedReminder.getArray(); + pMappedReminder[nDiff] = true; + } +} + +bool CachedContentResultSet::CCRS_Cache + ::isRowMapped( sal_Int32 nRow ) +{ + if( !m_pMappedReminder || !m_pResult ) + return false; + sal_Int32 nDiff = nRow - m_pResult->StartIndex; + if( nDiff < 0 ) + nDiff *= -1; + if( nDiff < m_pMappedReminder->getLength() ) + return (*m_pMappedReminder)[nDiff]; + return false; +} + +Sequence< sal_Bool >& CachedContentResultSet::CCRS_Cache + ::getMappedReminder() +{ + if( !m_pMappedReminder ) + { + sal_Int32 nCount = m_pResult->Rows.getLength(); + m_pMappedReminder.emplace( nCount ); + std::fill_n(m_pMappedReminder->getArray(), m_pMappedReminder->getLength(), false); + } + return *m_pMappedReminder; +} + +const Any& CachedContentResultSet::CCRS_Cache + ::getAny( sal_Int32 nRow, sal_Int32 nColumnIndex ) +{ + if( !nColumnIndex ) + throw SQLException(); + if( m_xContentIdentifierMapping.is() && !isRowMapped( nRow ) ) + { + Any& rRow = getRowAny( nRow ); + Sequence< Any > aValue; + rRow >>= aValue; + if( m_xContentIdentifierMapping->mapRow( aValue ) ) + { + rRow <<= aValue; + remindMapped( nRow ); + } + else + m_xContentIdentifierMapping.clear(); + } + auto & rowAny = getRowAny(nRow); + auto rRow = o3tl::doAccess<Sequence<Any>>(rowAny); + + if( nColumnIndex > rRow->getLength() ) + throw SQLException(); + return (*rRow)[nColumnIndex-1]; +} + +OUString const & CachedContentResultSet::CCRS_Cache + ::getContentIdentifierString( sal_Int32 nRow ) +{ + try + { + if( m_xContentIdentifierMapping.is() && !isRowMapped( nRow ) ) + { + Any& rRow = getRowAny( nRow ); + OUString aValue; + rRow >>= aValue; + rRow <<= m_xContentIdentifierMapping->mapContentIdentifierString( aValue ); + remindMapped( nRow ); + } + return *o3tl::doAccess<OUString>(getRowAny(nRow)); + } + catch(const SQLException& ex) + { + css::uno::Any anyEx = cppu::getCaughtException(); + throw css::lang::WrappedTargetRuntimeException( ex.Message, + css::uno::Reference< css::uno::XInterface >(), + anyEx ); + } +} + +Reference< XContentIdentifier > CachedContentResultSet::CCRS_Cache + ::getContentIdentifier( sal_Int32 nRow ) +{ + try + { + if( m_xContentIdentifierMapping.is() && !isRowMapped( nRow ) ) + { + Any& rRow = getRowAny( nRow ); + Reference< XContentIdentifier > aValue; + rRow >>= aValue; + rRow <<= m_xContentIdentifierMapping->mapContentIdentifier( aValue ); + remindMapped( nRow ); + } + return *o3tl::doAccess<Reference<XContentIdentifier>>(getRowAny(nRow)); + } + catch(const SQLException& ex) + { + css::uno::Any anyEx = cppu::getCaughtException(); + throw css::lang::WrappedTargetRuntimeException( ex.Message, + css::uno::Reference< css::uno::XInterface >(), + anyEx ); + } +} + +Reference< XContent > CachedContentResultSet::CCRS_Cache + ::getContent( sal_Int32 nRow ) +{ + try + { + if( m_xContentIdentifierMapping.is() && !isRowMapped( nRow ) ) + { + Any& rRow = getRowAny( nRow ); + Reference< XContent > aValue; + rRow >>= aValue; + rRow <<= m_xContentIdentifierMapping->mapContent( aValue ); + remindMapped( nRow ); + } + return *o3tl::doAccess<Reference<XContent>>(getRowAny(nRow)); + } + catch (const SQLException& ex) + { + css::uno::Any anyEx = cppu::getCaughtException(); + throw css::lang::WrappedTargetRuntimeException( ex.Message, + css::uno::Reference< css::uno::XInterface >(), + anyEx ); + } +} + + + + +class CCRS_PropertySetInfo : + public cppu::OWeakObject, + public css::lang::XTypeProvider, + public css::beans::XPropertySetInfo +{ + friend class CachedContentResultSet; + + //my Properties + std::optional<Sequence< css::beans::Property >> + m_xProperties; + + sal_Int32 m_nFetchSizePropertyHandle; + sal_Int32 m_nFetchDirectionPropertyHandle; + +private: + sal_Int32 + impl_getRemainedHandle() const; + + bool + impl_queryProperty( + std::u16string_view rName + , css::beans::Property& rProp ) const; + sal_Int32 + impl_getPos( std::u16string_view rName ) const; + + static bool + impl_isMyPropertyName( std::u16string_view rName ); + +public: + explicit CCRS_PropertySetInfo( Reference< + XPropertySetInfo > const & xPropertySetInfoOrigin ); + + // XInterface + virtual css::uno::Any SAL_CALL queryInterface( const css::uno::Type & rType ) override; + virtual void SAL_CALL acquire() + noexcept override; + virtual void SAL_CALL release() + noexcept override; + + // XTypeProvider + virtual css::uno::Sequence< sal_Int8 > SAL_CALL getImplementationId() override; + virtual css::uno::Sequence< css::uno::Type > SAL_CALL getTypes() override; + + // XPropertySetInfo + virtual Sequence< css::beans::Property > SAL_CALL + getProperties() override; + + virtual css::beans::Property SAL_CALL + getPropertyByName( const OUString& aName ) override; + + virtual sal_Bool SAL_CALL + hasPropertyByName( const OUString& Name ) override; +}; + +//some helping variables ( names for my special properties ) +const char16_t g_sPropertyNameForCount[] = u"RowCount"; +const char16_t g_sPropertyNameForFinalCount[] = u"IsRowCountFinal"; +constexpr OUStringLiteral g_sPropertyNameForFetchSize(u"FetchSize"); +constexpr OUStringLiteral g_sPropertyNameForFetchDirection(u"FetchDirection"); + +CCRS_PropertySetInfo::CCRS_PropertySetInfo( + Reference< XPropertySetInfo > const & xInfo ) + : m_nFetchSizePropertyHandle( -1 ) + , m_nFetchDirectionPropertyHandle( -1 ) +{ + //initialize list of properties: + + // it is required, that the received xInfo contains the two + // properties with names 'g_sPropertyNameForCount' and + // 'g_sPropertyNameForFinalCount' + + if( xInfo.is() ) + { + m_xProperties = xInfo->getProperties(); + } + else + { + OSL_FAIL( "The received XPropertySetInfo doesn't contain required properties" ); + m_xProperties.emplace(); + } + + //ensure, that we haven't got the Properties 'FetchSize' and 'Direction' twice: + sal_Int32 nFetchSize = impl_getPos( g_sPropertyNameForFetchSize ); + sal_Int32 nFetchDirection = impl_getPos( g_sPropertyNameForFetchDirection ); + sal_Int32 nDeleted = 0; + if( nFetchSize != -1 ) + nDeleted++; + if( nFetchDirection != -1 ) + nDeleted++; + + Sequence< Property > aOrigProps( *m_xProperties ); + sal_Int32 nOrigProps = aOrigProps.getLength(); + + m_xProperties->realloc( nOrigProps + 2 - nDeleted );//note that nDeleted is <= 2 + auto pProperties = m_xProperties->getArray(); + for( sal_Int32 n = 0, m = 0; n < nOrigProps; n++, m++ ) + { + if( n == nFetchSize || n == nFetchDirection ) + m--; + else + pProperties[ m ] = aOrigProps[ n ]; + } + { + Property& rMyProp = pProperties[ nOrigProps - nDeleted ]; + rMyProp.Name = g_sPropertyNameForFetchSize; + rMyProp.Type = cppu::UnoType<sal_Int32>::get(); + rMyProp.Attributes = PropertyAttribute::BOUND | PropertyAttribute::MAYBEDEFAULT; + + if( nFetchSize != -1 ) + m_nFetchSizePropertyHandle = aOrigProps[nFetchSize].Handle; + else + m_nFetchSizePropertyHandle = impl_getRemainedHandle(); + + rMyProp.Handle = m_nFetchSizePropertyHandle; + + } + { + Property& rMyProp = pProperties[ nOrigProps - nDeleted + 1 ]; + rMyProp.Name = g_sPropertyNameForFetchDirection; + rMyProp.Type = cppu::UnoType<sal_Bool>::get(); + rMyProp.Attributes = PropertyAttribute::BOUND | PropertyAttribute::MAYBEDEFAULT; + + m_nFetchDirectionPropertyHandle = rMyProp.Handle; + } +} + +// XInterface methods. + +void SAL_CALL CCRS_PropertySetInfo::acquire() + noexcept +{ + OWeakObject::acquire(); +} + +void SAL_CALL CCRS_PropertySetInfo::release() + noexcept +{ + OWeakObject::release(); +} + +css::uno::Any SAL_CALL CCRS_PropertySetInfo::queryInterface( const css::uno::Type & rType ) +{ + css::uno::Any aRet = cppu::queryInterface( rType, + static_cast< XTypeProvider* >(this), + static_cast< XPropertySetInfo* >(this) + ); + return aRet.hasValue() ? aRet : OWeakObject::queryInterface( rType ); +} + +// XTypeProvider methods. + +//list all interfaces exclusive baseclasses +XTYPEPROVIDER_IMPL_2( CCRS_PropertySetInfo + , XTypeProvider + , XPropertySetInfo + ); + +// XPropertySetInfo methods. + +//virtual +Sequence< Property > SAL_CALL CCRS_PropertySetInfo + ::getProperties() +{ + return *m_xProperties; +} + +//virtual +Property SAL_CALL CCRS_PropertySetInfo + ::getPropertyByName( const OUString& aName ) +{ + Property aProp; + if ( impl_queryProperty( aName, aProp ) ) + return aProp; + + throw UnknownPropertyException(aName); +} + +//virtual +sal_Bool SAL_CALL CCRS_PropertySetInfo + ::hasPropertyByName( const OUString& Name ) +{ + return ( impl_getPos( Name ) != -1 ); +} + + +// impl_ methods. + + +sal_Int32 CCRS_PropertySetInfo + ::impl_getPos( std::u16string_view rName ) const +{ + for( sal_Int32 nN = m_xProperties->getLength(); nN--; ) + { + const Property& rMyProp = (*m_xProperties)[nN]; + if( rMyProp.Name == rName ) + return nN; + } + return -1; +} + +bool CCRS_PropertySetInfo + ::impl_queryProperty( std::u16string_view rName, Property& rProp ) const +{ + for( const Property& rMyProp : std::as_const(*m_xProperties) ) + { + if( rMyProp.Name == rName ) + { + rProp.Name = rMyProp.Name; + rProp.Handle = rMyProp.Handle; + rProp.Type = rMyProp.Type; + rProp.Attributes = rMyProp.Attributes; + + return true; + } + } + return false; +} + +//static +bool CCRS_PropertySetInfo + ::impl_isMyPropertyName( std::u16string_view rPropertyName ) +{ + return ( rPropertyName == g_sPropertyNameForCount + || rPropertyName == g_sPropertyNameForFinalCount + || rPropertyName == g_sPropertyNameForFetchSize + || rPropertyName == g_sPropertyNameForFetchDirection ); +} + +sal_Int32 CCRS_PropertySetInfo + ::impl_getRemainedHandle( ) const +{ + sal_Int32 nHandle = 1; + + if( !m_xProperties ) + { + OSL_FAIL( "Properties not initialized yet" ); + return nHandle; + } + bool bFound = true; + while( bFound ) + { + bFound = false; + for( const auto & rProp : std::as_const(*m_xProperties) ) + { + if( nHandle == rProp.Handle ) + { + bFound = true; + nHandle++; + break; + } + } + } + return nHandle; +} + + + + +CachedContentResultSet::CachedContentResultSet( + const Reference< XComponentContext > & rxContext + , const Reference< XResultSet > & xOrigin + , const Reference< XContentIdentifierMapping > & + xContentIdentifierMapping ) + : ContentResultSetWrapper( xOrigin ) + + , m_xContext( rxContext ) + + , m_xContentIdentifierMapping( xContentIdentifierMapping ) + , m_nRow( 0 ) // Position is one-based. Zero means: before first element. + , m_bAfterLast( false ) + , m_nLastAppliedPos( 0 ) + , m_bAfterLastApplied( false ) + , m_nKnownCount( 0 ) + , m_bFinalCount( false ) + , m_nFetchSize( + COMSUNSTARUCBCCRS_DEFAULT_FETCH_SIZE ) + , m_nFetchDirection( + COMSUNSTARUCBCCRS_DEFAULT_FETCH_DIRECTION ) + + , m_bLastReadWasFromCache( false ) + , m_bLastCachedReadWasNull( true ) + , m_aCache( m_xContentIdentifierMapping ) + , m_aCacheContentIdentifierString( m_xContentIdentifierMapping ) + , m_aCacheContentIdentifier( m_xContentIdentifierMapping ) + , m_aCacheContent( m_xContentIdentifierMapping ) + , m_bTriedToGetTypeConverter( false ) +{ + m_xFetchProvider.set( m_xResultSetOrigin, UNO_QUERY ); + OSL_ENSURE( m_xFetchProvider.is(), "interface XFetchProvider is required" ); + + m_xFetchProviderForContentAccess.set( m_xResultSetOrigin, UNO_QUERY ); + OSL_ENSURE( m_xFetchProviderForContentAccess.is(), "interface XFetchProviderForContentAccess is required" ); + + impl_init(); +}; + +CachedContentResultSet::~CachedContentResultSet() +{ + impl_deinit(); + //do not delete m_pMyPropSetInfo, cause it is hold via reference +}; + + +// impl_ methods. + + +bool CachedContentResultSet + ::applyPositionToOrigin( sal_Int32 nRow ) +{ + impl_EnsureNotDisposed(); + + /** + @returns + <TRUE/> if the cursor is on a valid row; <FALSE/> if it is off + the result set. + */ + + osl::ResettableMutexGuard aGuard(m_aMutex); + OSL_ENSURE( nRow >= 0, "only positive values supported" ); + if( !m_xResultSetOrigin.is() ) + { + OSL_FAIL( "broadcaster was disposed already" ); + return false; + } +// OSL_ENSURE( nRow <= m_nKnownCount, "don't step into regions you don't know with this method" ); + + sal_Int32 nLastAppliedPos = m_nLastAppliedPos; + bool bAfterLastApplied = m_bAfterLastApplied; + bool bAfterLast = m_bAfterLast; + sal_Int32 nForwardOnly = m_nForwardOnly; + + aGuard.clear(); + + if( bAfterLastApplied || nLastAppliedPos != nRow ) + { + if( nForwardOnly == 1 ) + { + if( bAfterLastApplied || bAfterLast || !nRow || nRow < nLastAppliedPos ) + throw SQLException(); + + sal_Int32 nN = nRow - nLastAppliedPos; + sal_Int32 nM; + for( nM = 0; nN--; nM++ ) + { + if( !m_xResultSetOrigin->next() ) + break; + } + + aGuard.reset(); + m_nLastAppliedPos += nM; + m_bAfterLastApplied = nRow != m_nLastAppliedPos; + return nRow == m_nLastAppliedPos; + } + + if( !nRow ) //absolute( 0 ) will throw exception + { + m_xResultSetOrigin->beforeFirst(); + + aGuard.reset(); + m_nLastAppliedPos = 0; + m_bAfterLastApplied = false; + return false; + } + try + { + //move absolute, if !nLastAppliedPos + //because move relative would throw exception + if( !nLastAppliedPos || bAfterLast || bAfterLastApplied ) + { + bool bValid = m_xResultSetOrigin->absolute( nRow ); + + aGuard.reset(); + m_nLastAppliedPos = nRow; + m_bAfterLastApplied = !bValid; + return bValid; + } + else + { + bool bValid = m_xResultSetOrigin->relative( nRow - nLastAppliedPos ); + + aGuard.reset(); + m_nLastAppliedPos += ( nRow - nLastAppliedPos ); + m_bAfterLastApplied = !bValid; + return bValid; + } + } + catch (const SQLException&) + { + if( !bAfterLastApplied && !bAfterLast && nRow > nLastAppliedPos && impl_isForwardOnly() ) + { + sal_Int32 nN = nRow - nLastAppliedPos; + sal_Int32 nM; + for( nM = 0; nN--; nM++ ) + { + if( !m_xResultSetOrigin->next() ) + break; + } + + aGuard.reset(); + m_nLastAppliedPos += nM; + m_bAfterLastApplied = nRow != m_nLastAppliedPos; + } + else + throw; + } + + return nRow == m_nLastAppliedPos; + } + return true; +}; + + +//define for fetching data + + +#define FETCH_XXX( aCache, fetchInterface, fetchMethod ) \ +bool bDirection = !!( \ + nFetchDirection != FetchDirection::REVERSE ); \ +FetchResult aResult = \ + fetchInterface->fetchMethod( nRow, nFetchSize, bDirection ); \ +osl::ClearableGuard< osl::Mutex > aGuard2( m_aMutex ); \ +aCache.loadData( aResult ); \ +sal_Int32 nMax = aCache.getMaxRow(); \ +sal_Int32 nCurCount = m_nKnownCount; \ +bool bIsFinalCount = aCache.hasKnownLast(); \ +bool bCurIsFinalCount = m_bFinalCount; \ +aGuard2.clear(); \ +if( nMax > nCurCount ) \ + impl_changeRowCount( nCurCount, nMax ); \ +if( bIsFinalCount && !bCurIsFinalCount ) \ + impl_changeIsRowCountFinal( bCurIsFinalCount, bIsFinalCount ); + +void CachedContentResultSet + ::impl_fetchData( sal_Int32 nRow + , sal_Int32 nFetchSize, sal_Int32 nFetchDirection ) +{ + FETCH_XXX( m_aCache, m_xFetchProvider, fetch ); +} + +void CachedContentResultSet + ::impl_changeRowCount( sal_Int32 nOld, sal_Int32 nNew ) +{ + OSL_ENSURE( nNew > nOld, "RowCount only can grow" ); + if( nNew <= nOld ) + return; + + //create PropertyChangeEvent and set value + PropertyChangeEvent aEvt; + { + osl::Guard< osl::Mutex > aGuard( m_aMutex ); + aEvt.Source = static_cast< XPropertySet * >( this ); + aEvt.Further = false; + aEvt.OldValue <<= nOld; + aEvt.NewValue <<= nNew; + + m_nKnownCount = nNew; + } + + //send PropertyChangeEvent to listeners + impl_notifyPropertyChangeListeners( aEvt ); +} + +void CachedContentResultSet + ::impl_changeIsRowCountFinal( bool bOld, bool bNew ) +{ + OSL_ENSURE( !bOld && bNew, "This change is not allowed for IsRowCountFinal" ); + if( bOld || !bNew ) + return; + + //create PropertyChangeEvent and set value + PropertyChangeEvent aEvt; + { + osl::Guard< osl::Mutex > aGuard( m_aMutex ); + aEvt.Source = static_cast< XPropertySet * >( this ); + aEvt.Further = false; + aEvt.OldValue <<= bOld; + aEvt.NewValue <<= bNew; + + m_bFinalCount = bNew; + } + + //send PropertyChangeEvent to listeners + impl_notifyPropertyChangeListeners( aEvt ); +} + +bool CachedContentResultSet + ::impl_isKnownValidPosition( sal_Int32 nRow ) const +{ + return m_nKnownCount && nRow + && nRow <= m_nKnownCount; +} + +bool CachedContentResultSet + ::impl_isKnownInvalidPosition( sal_Int32 nRow ) const +{ + if( !nRow ) + return true; + if( !m_bFinalCount ) + return false; + return nRow > m_nKnownCount; +} + + +//virtual +void CachedContentResultSet + ::impl_initPropertySetInfo() +{ + ContentResultSetWrapper::impl_initPropertySetInfo(); + + osl::Guard< osl::Mutex > aGuard( m_aMutex ); + if( m_xMyPropertySetInfo.is() ) + return; + m_xMyPropertySetInfo = new CCRS_PropertySetInfo( m_xPropertySetInfo ); + m_xPropertySetInfo = m_xMyPropertySetInfo.get(); +} + + +// XInterface methods. +void SAL_CALL CachedContentResultSet::acquire() + noexcept +{ + OWeakObject::acquire(); +} + +void SAL_CALL CachedContentResultSet::release() + noexcept +{ + OWeakObject::release(); +} + +Any SAL_CALL CachedContentResultSet + ::queryInterface( const Type& rType ) +{ + //list all interfaces inclusive baseclasses of interfaces + + Any aRet = ContentResultSetWrapper::queryInterface( rType ); + if( aRet.hasValue() ) + return aRet; + + aRet = cppu::queryInterface( rType, + static_cast< XTypeProvider* >( this ), + static_cast< XServiceInfo* >( this ) ); + + return aRet.hasValue() ? aRet : OWeakObject::queryInterface( rType ); +} + + +// XTypeProvider methods. + +//list all interfaces exclusive baseclasses +XTYPEPROVIDER_IMPL_11( CachedContentResultSet + , XTypeProvider + , XServiceInfo + , XComponent + , XCloseable + , XResultSetMetaDataSupplier + , XPropertySet + + , XPropertyChangeListener + , XVetoableChangeListener + + , XContentAccess + + , XResultSet + , XRow ); + + +// XServiceInfo methods. + +OUString SAL_CALL CachedContentResultSet::getImplementationName() +{ + return "com.sun.star.comp.ucb.CachedContentResultSet"; +} + +sal_Bool SAL_CALL CachedContentResultSet::supportsService( const OUString& ServiceName ) +{ + return cppu::supportsService( this, ServiceName ); +} + +css::uno::Sequence< OUString > SAL_CALL CachedContentResultSet::getSupportedServiceNames() +{ + return { "com.sun.star.ucb.CachedContentResultSet" }; +} + + + +// XPropertySet methods. ( inherited ) + + +// virtual +void SAL_CALL CachedContentResultSet + ::setPropertyValue( const OUString& aPropertyName, const Any& aValue ) +{ + impl_EnsureNotDisposed(); + + if( !getPropertySetInfo().is() ) + { + OSL_FAIL( "broadcaster was disposed already" ); + throw UnknownPropertyException(); + } + + Property aProp = m_xMyPropertySetInfo->getPropertyByName( aPropertyName ); + //throws UnknownPropertyException, if so + + if( aProp.Attributes & PropertyAttribute::READONLY ) + { + //It is assumed, that the properties + //'RowCount' and 'IsRowCountFinal' are readonly! + throw IllegalArgumentException(); + } + if( aProp.Name == g_sPropertyNameForFetchDirection ) + { + //check value + sal_Int32 nNew; + if( !( aValue >>= nNew ) ) + { + throw IllegalArgumentException(); + } + + if( nNew == FetchDirection::UNKNOWN ) + { + nNew = COMSUNSTARUCBCCRS_DEFAULT_FETCH_DIRECTION; + } + else if( nNew != FetchDirection::FORWARD && nNew != FetchDirection::REVERSE ) + { + throw IllegalArgumentException(); + } + + //create PropertyChangeEvent and set value + PropertyChangeEvent aEvt; + { + osl::Guard< osl::Mutex > aGuard( m_aMutex ); + aEvt.Source = static_cast< XPropertySet * >( this ); + aEvt.PropertyName = aPropertyName; + aEvt.Further = false; + aEvt.PropertyHandle = m_xMyPropertySetInfo-> + m_nFetchDirectionPropertyHandle; + aEvt.OldValue <<= m_nFetchDirection; + aEvt.NewValue <<= nNew; + + m_nFetchDirection = nNew; + } + + //send PropertyChangeEvent to listeners + impl_notifyPropertyChangeListeners( aEvt ); + } + else if( aProp.Name == g_sPropertyNameForFetchSize ) + { + //check value + sal_Int32 nNew; + if( !( aValue >>= nNew ) ) + { + throw IllegalArgumentException(); + } + + if( nNew < 0 ) + { + nNew = COMSUNSTARUCBCCRS_DEFAULT_FETCH_SIZE; + } + + //create PropertyChangeEvent and set value + PropertyChangeEvent aEvt; + { + osl::Guard< osl::Mutex > aGuard( m_aMutex ); + aEvt.Source = static_cast< XPropertySet * >( this ); + aEvt.PropertyName = aPropertyName; + aEvt.Further = false; + aEvt.PropertyHandle = m_xMyPropertySetInfo-> + m_nFetchSizePropertyHandle; + aEvt.OldValue <<= m_nFetchSize; + aEvt.NewValue <<= nNew; + + m_nFetchSize = nNew; + } + + //send PropertyChangeEvent to listeners + impl_notifyPropertyChangeListeners( aEvt ); + } + else + { + impl_init_xPropertySetOrigin(); + { + osl::Guard< osl::Mutex > aGuard( m_aMutex ); + if( !m_xPropertySetOrigin.is() ) + { + OSL_FAIL( "broadcaster was disposed already" ); + return; + } + } + m_xPropertySetOrigin->setPropertyValue( aPropertyName, aValue ); + } +} + + +// virtual +Any SAL_CALL CachedContentResultSet + ::getPropertyValue( const OUString& rPropertyName ) +{ + impl_EnsureNotDisposed(); + + if( !getPropertySetInfo().is() ) + { + OSL_FAIL( "broadcaster was disposed already" ); + throw UnknownPropertyException(); + } + + m_xMyPropertySetInfo->getPropertyByName( rPropertyName ); + //throws UnknownPropertyException, if so + + Any aValue; + if( rPropertyName == g_sPropertyNameForCount ) + { + osl::Guard< osl::Mutex > aGuard( m_aMutex ); + aValue <<= m_nKnownCount; + } + else if( rPropertyName == g_sPropertyNameForFinalCount ) + { + osl::Guard< osl::Mutex > aGuard( m_aMutex ); + aValue <<= m_bFinalCount; + } + else if( rPropertyName == g_sPropertyNameForFetchSize ) + { + osl::Guard< osl::Mutex > aGuard( m_aMutex ); + aValue <<= m_nFetchSize; + } + else if( rPropertyName == g_sPropertyNameForFetchDirection ) + { + osl::Guard< osl::Mutex > aGuard( m_aMutex ); + aValue <<= m_nFetchDirection; + } + else + { + impl_init_xPropertySetOrigin(); + { + osl::Guard< osl::Mutex > aGuard( m_aMutex ); + if( !m_xPropertySetOrigin.is() ) + { + OSL_FAIL( "broadcaster was disposed already" ); + throw UnknownPropertyException(); + } + } + aValue = m_xPropertySetOrigin->getPropertyValue( rPropertyName ); + } + return aValue; +} + + +// own methods. ( inherited ) + + +//virtual +void CachedContentResultSet + ::impl_disposing( const EventObject& rEventObject ) +{ + { + impl_EnsureNotDisposed(); + osl::Guard< osl::Mutex > aGuard( m_aMutex ); + //release all references to the broadcaster: + m_xFetchProvider.clear(); + m_xFetchProviderForContentAccess.clear(); + } + ContentResultSetWrapper::impl_disposing( rEventObject ); +} + +//virtual +void CachedContentResultSet + ::impl_propertyChange( const PropertyChangeEvent& rEvt ) +{ + impl_EnsureNotDisposed(); + + PropertyChangeEvent aEvt( rEvt ); + aEvt.Source = static_cast< XPropertySet * >( this ); + aEvt.Further = false; + + + if( CCRS_PropertySetInfo + ::impl_isMyPropertyName( rEvt.PropertyName ) ) + { + //don't notify foreign events on fetchsize and fetchdirection + if( aEvt.PropertyName == g_sPropertyNameForFetchSize + || aEvt.PropertyName == g_sPropertyNameForFetchDirection ) + return; + + //adjust my props 'RowCount' and 'IsRowCountFinal' + if( aEvt.PropertyName == g_sPropertyNameForCount ) + {//RowCount changed + + //check value + sal_Int32 nNew = 0; + if( !( aEvt.NewValue >>= nNew ) ) + { + OSL_FAIL( "PropertyChangeEvent contains wrong data" ); + return; + } + + impl_changeRowCount( m_nKnownCount, nNew ); + } + else if( aEvt.PropertyName == g_sPropertyNameForFinalCount ) + {//IsRowCountFinal changed + + //check value + bool bNew = false; + if( !( aEvt.NewValue >>= bNew ) ) + { + OSL_FAIL( "PropertyChangeEvent contains wrong data" ); + return; + } + impl_changeIsRowCountFinal( m_bFinalCount, bNew ); + } + return; + } + + + impl_notifyPropertyChangeListeners( aEvt ); +} + + +//virtual +void CachedContentResultSet + ::impl_vetoableChange( const PropertyChangeEvent& rEvt ) +{ + impl_EnsureNotDisposed(); + + //don't notify events on my properties, cause they are not vetoable + if( CCRS_PropertySetInfo + ::impl_isMyPropertyName( rEvt.PropertyName ) ) + { + return; + } + + + PropertyChangeEvent aEvt( rEvt ); + aEvt.Source = static_cast< XPropertySet * >( this ); + aEvt.Further = false; + + impl_notifyVetoableChangeListeners( aEvt ); +} + + +// XContentAccess methods. ( inherited ) ( -- position dependent ) + + +#define XCONTENTACCESS_queryXXX( queryXXX, XXX, TYPE ) \ +impl_EnsureNotDisposed(); \ +osl::ResettableMutexGuard aGuard(m_aMutex); \ +sal_Int32 nRow = m_nRow; \ +sal_Int32 nFetchSize = m_nFetchSize; \ +sal_Int32 nFetchDirection = m_nFetchDirection; \ +if( !m_aCache##XXX.hasRow( nRow ) ) \ +{ \ + try \ + { \ + bool isCleared = false; \ + if( !m_aCache##XXX.hasCausedException( nRow ) ) \ + { \ + if( !m_xFetchProviderForContentAccess.is() ) \ + { \ + OSL_FAIL( "broadcaster was disposed already" ); \ + throw RuntimeException(); \ + } \ + aGuard.clear(); \ + isCleared = true; \ + if( impl_isForwardOnly() ) \ + applyPositionToOrigin( nRow ); \ + \ + FETCH_XXX( m_aCache##XXX, m_xFetchProviderForContentAccess, fetch##XXX##s ); \ + } \ + if (isCleared) \ + { \ + aGuard.reset(); \ + } \ + if( !m_aCache##XXX.hasRow( nRow ) ) \ + { \ + aGuard.clear(); \ + applyPositionToOrigin( nRow ); \ + TYPE aRet = ContentResultSetWrapper::queryXXX();\ + if( m_xContentIdentifierMapping.is() ) \ + return m_xContentIdentifierMapping->map##XXX( aRet );\ + return aRet; \ + } \ + } \ + catch (const RuntimeException&) \ + { \ + throw; \ + } \ + catch (const Exception& e) \ + { \ + Any a(cppu::getCaughtException()); \ + throw WrappedTargetRuntimeException( \ + "wrapped Exception " + e.Message, \ + Reference<XInterface>(), a); \ + } \ +} \ +return m_aCache##XXX.get##XXX( nRow ); + +// virtual +OUString SAL_CALL CachedContentResultSet + ::queryContentIdentifierString() +{ + XCONTENTACCESS_queryXXX( queryContentIdentifierString, ContentIdentifierString, OUString ) +} + + +// virtual +Reference< XContentIdentifier > SAL_CALL CachedContentResultSet + ::queryContentIdentifier() +{ + XCONTENTACCESS_queryXXX( queryContentIdentifier, ContentIdentifier, Reference< XContentIdentifier > ) +} + + +// virtual +Reference< XContent > SAL_CALL CachedContentResultSet + ::queryContent() +{ + XCONTENTACCESS_queryXXX( queryContent, Content, Reference< XContent > ) +} + + +// XResultSet methods. ( inherited ) + +//virtual + +sal_Bool SAL_CALL CachedContentResultSet + ::next() +{ + impl_EnsureNotDisposed(); + + osl::ResettableMutexGuard aGuard(m_aMutex); + //after last + if( m_bAfterLast ) + return false; + //last + aGuard.clear(); + if( isLast() ) + { + aGuard.reset(); + m_nRow++; + m_bAfterLast = true; + return false; + } + aGuard.reset(); + //known valid position + if( impl_isKnownValidPosition( m_nRow + 1 ) ) + { + m_nRow++; + return true; + } + + //unknown position + sal_Int32 nRow = m_nRow; + aGuard.clear(); + + bool bValid = applyPositionToOrigin( nRow + 1 ); + + aGuard.reset(); + m_nRow = nRow + 1; + m_bAfterLast = !bValid; + return bValid; +} + +//virtual +sal_Bool SAL_CALL CachedContentResultSet + ::previous() +{ + impl_EnsureNotDisposed(); + + if( impl_isForwardOnly() ) + throw SQLException(); + + osl::ResettableMutexGuard aGuard(m_aMutex); + //before first ?: + if( !m_bAfterLast && !m_nRow ) + return false; + //first ?: + if( !m_bAfterLast && m_nKnownCount && m_nRow == 1 ) + { + m_nRow--; + m_bAfterLast = false; + return false; + } + //known valid position ?: + if( impl_isKnownValidPosition( m_nRow - 1 ) ) + { + m_nRow--; + m_bAfterLast = false; + return true; + } + //unknown position: + sal_Int32 nRow = m_nRow; + aGuard.clear(); + + bool bValid = applyPositionToOrigin( nRow - 1 ); + + aGuard.reset(); + m_nRow = nRow - 1; + m_bAfterLast = false; + return bValid; +} + +//virtual +sal_Bool SAL_CALL CachedContentResultSet + ::absolute( sal_Int32 row ) +{ + impl_EnsureNotDisposed(); + + if( !row ) + throw SQLException(); + + if( impl_isForwardOnly() ) + throw SQLException(); + + osl::ResettableMutexGuard aGuard(m_aMutex); + + if( !m_xResultSetOrigin.is() ) + { + OSL_FAIL( "broadcaster was disposed already" ); + return false; + } + if( row < 0 ) + { + if( m_bFinalCount ) + { + sal_Int32 nNewRow = m_nKnownCount + 1 + row; + bool bValid = true; + if( nNewRow <= 0 ) + { + nNewRow = 0; + bValid = false; + } + m_nRow = nNewRow; + m_bAfterLast = false; + return bValid; + } + //unknown final count: + aGuard.clear(); + + bool bValid = m_xResultSetOrigin->absolute( row ); + + aGuard.reset(); + if( m_bFinalCount ) + { + sal_Int32 nNewRow = m_nKnownCount + 1 + row; + if( nNewRow < 0 ) + nNewRow = 0; + m_nLastAppliedPos = nNewRow; + m_nRow = nNewRow; + m_bAfterLastApplied = m_bAfterLast = false; + return bValid; + } + aGuard.clear(); + + sal_Int32 nCurRow = m_xResultSetOrigin->getRow(); + + aGuard.reset(); + m_nLastAppliedPos = nCurRow; + m_nRow = nCurRow; + m_bAfterLast = false; + return nCurRow != 0; + } + //row > 0: + if( m_bFinalCount ) + { + if( row > m_nKnownCount ) + { + m_nRow = m_nKnownCount + 1; + m_bAfterLast = true; + return false; + } + m_nRow = row; + m_bAfterLast = false; + return true; + } + //unknown new position: + aGuard.clear(); + + bool bValid = m_xResultSetOrigin->absolute( row ); + + aGuard.reset(); + if( m_bFinalCount ) + { + sal_Int32 nNewRow = row; + if( nNewRow > m_nKnownCount ) + { + nNewRow = m_nKnownCount + 1; + m_bAfterLastApplied = m_bAfterLast = true; + } + else + m_bAfterLastApplied = m_bAfterLast = false; + + m_nLastAppliedPos = nNewRow; + m_nRow = nNewRow; + return bValid; + } + aGuard.clear(); + + sal_Int32 nCurRow = m_xResultSetOrigin->getRow(); + bool bIsAfterLast = m_xResultSetOrigin->isAfterLast(); + + aGuard.reset(); + m_nLastAppliedPos = nCurRow; + m_nRow = nCurRow; + m_bAfterLastApplied = m_bAfterLast = bIsAfterLast; + return nCurRow && !bIsAfterLast; +} + +//virtual +sal_Bool SAL_CALL CachedContentResultSet + ::relative( sal_Int32 rows ) +{ + impl_EnsureNotDisposed(); + + if( impl_isForwardOnly() ) + throw SQLException(); + + osl::ResettableMutexGuard aGuard(m_aMutex); + if( m_bAfterLast || impl_isKnownInvalidPosition( m_nRow ) ) + throw SQLException(); + + if( !rows ) + return true; + + sal_Int32 nNewRow = m_nRow + rows; + if( nNewRow < 0 ) + nNewRow = 0; + + if( impl_isKnownValidPosition( nNewRow ) ) + { + m_nRow = nNewRow; + m_bAfterLast = false; + return true; + } + else + { + //known invalid new position: + if( nNewRow == 0 ) + { + m_bAfterLast = false; + m_nRow = 0; + return false; + } + if( m_bFinalCount && nNewRow > m_nKnownCount ) + { + m_bAfterLast = true; + m_nRow = m_nKnownCount + 1; + return false; + } + //unknown new position: + aGuard.clear(); + bool bValid = applyPositionToOrigin( nNewRow ); + + aGuard.reset(); + m_nRow = nNewRow; + m_bAfterLast = !bValid; // only nNewRow > 0 possible here + return bValid; + } +} + + +//virtual +sal_Bool SAL_CALL CachedContentResultSet + ::first() +{ + impl_EnsureNotDisposed(); + + if( impl_isForwardOnly() ) + throw SQLException(); + + osl::ResettableMutexGuard aGuard(m_aMutex); + if( impl_isKnownValidPosition( 1 ) ) + { + m_nRow = 1; + m_bAfterLast = false; + return true; + } + if( impl_isKnownInvalidPosition( 1 ) ) + { + m_nRow = 1; + m_bAfterLast = false; + return false; + } + //unknown position + aGuard.clear(); + + bool bValid = applyPositionToOrigin( 1 ); + + aGuard.reset(); + m_nRow = 1; + m_bAfterLast = false; + return bValid; +} + +//virtual +sal_Bool SAL_CALL CachedContentResultSet + ::last() +{ + impl_EnsureNotDisposed(); + + if( impl_isForwardOnly() ) + throw SQLException(); + + osl::ResettableMutexGuard aGuard(m_aMutex); + if( m_bFinalCount ) + { + m_nRow = m_nKnownCount; + m_bAfterLast = false; + return m_nKnownCount != 0; + } + //unknown position + if( !m_xResultSetOrigin.is() ) + { + OSL_FAIL( "broadcaster was disposed already" ); + return false; + } + aGuard.clear(); + + bool bValid = m_xResultSetOrigin->last(); + + aGuard.reset(); + m_bAfterLastApplied = m_bAfterLast = false; + if( m_bFinalCount ) + { + m_nLastAppliedPos = m_nKnownCount; + m_nRow = m_nKnownCount; + return bValid; + } + aGuard.clear(); + + sal_Int32 nCurRow = m_xResultSetOrigin->getRow(); + + aGuard.reset(); + m_nLastAppliedPos = nCurRow; + m_nRow = nCurRow; + OSL_ENSURE( nCurRow >= m_nKnownCount, "position of last row < known Count, that could not be" ); + m_nKnownCount = nCurRow; + m_bFinalCount = true; + return nCurRow != 0; +} + +//virtual +void SAL_CALL CachedContentResultSet + ::beforeFirst() +{ + impl_EnsureNotDisposed(); + + if( impl_isForwardOnly() ) + throw SQLException(); + + osl::Guard< osl::Mutex > aGuard( m_aMutex ); + m_nRow = 0; + m_bAfterLast = false; +} + +//virtual +void SAL_CALL CachedContentResultSet + ::afterLast() +{ + impl_EnsureNotDisposed(); + + if( impl_isForwardOnly() ) + throw SQLException(); + + osl::Guard< osl::Mutex > aGuard( m_aMutex ); + m_nRow = 1; + m_bAfterLast = true; +} + +//virtual +sal_Bool SAL_CALL CachedContentResultSet + ::isAfterLast() +{ + impl_EnsureNotDisposed(); + + osl::ResettableMutexGuard aGuard(m_aMutex); + if( !m_bAfterLast ) + return false; + if( m_nKnownCount ) + return m_bAfterLast; + if( m_bFinalCount ) + return false; + + if( !m_xResultSetOrigin.is() ) + { + OSL_FAIL( "broadcaster was disposed already" ); + return false; + } + aGuard.clear(); + + //find out whether the original resultset contains rows or not + m_xResultSetOrigin->afterLast(); + + aGuard.reset(); + m_bAfterLastApplied = true; + aGuard.clear(); + + return m_xResultSetOrigin->isAfterLast(); +} + +//virtual +sal_Bool SAL_CALL CachedContentResultSet + ::isBeforeFirst() +{ + impl_EnsureNotDisposed(); + + osl::ResettableMutexGuard aGuard(m_aMutex); + if( m_bAfterLast ) + return false; + if( m_nRow ) + return false; + if( m_nKnownCount ) + return true; + if( m_bFinalCount ) + return false; + + if( !m_xResultSetOrigin.is() ) + { + OSL_FAIL( "broadcaster was disposed already" ); + return false; + } + aGuard.clear(); + + //find out whether the original resultset contains rows or not + m_xResultSetOrigin->beforeFirst(); + + aGuard.reset(); + m_bAfterLastApplied = false; + m_nLastAppliedPos = 0; + aGuard.clear(); + + return m_xResultSetOrigin->isBeforeFirst(); +} + +//virtual +sal_Bool SAL_CALL CachedContentResultSet + ::isFirst() +{ + impl_EnsureNotDisposed(); + + sal_Int32 nRow = 0; + Reference< XResultSet > xResultSetOrigin; + + { + osl::Guard< osl::Mutex > aGuard( m_aMutex ); + if( m_bAfterLast ) + return false; + if( m_nRow != 1 ) + return false; + if( m_nKnownCount ) + return true; + if( m_bFinalCount ) + return false; + + nRow = m_nRow; + xResultSetOrigin = m_xResultSetOrigin; + } + + //need to ask origin + { + if( applyPositionToOrigin( nRow ) ) + return xResultSetOrigin->isFirst(); + else + return false; + } +} + +//virtual +sal_Bool SAL_CALL CachedContentResultSet + ::isLast() +{ + impl_EnsureNotDisposed(); + + sal_Int32 nRow = 0; + Reference< XResultSet > xResultSetOrigin; + { + osl::Guard< osl::Mutex > aGuard( m_aMutex ); + if( m_bAfterLast ) + return false; + if( m_nRow < m_nKnownCount ) + return false; + if( m_bFinalCount ) + return m_nKnownCount && m_nRow == m_nKnownCount; + + nRow = m_nRow; + xResultSetOrigin = m_xResultSetOrigin; + } + + //need to ask origin + { + if( applyPositionToOrigin( nRow ) ) + return xResultSetOrigin->isLast(); + else + return false; + } +} + + +//virtual +sal_Int32 SAL_CALL CachedContentResultSet + ::getRow() +{ + impl_EnsureNotDisposed(); + + osl::Guard< osl::Mutex > aGuard( m_aMutex ); + if( m_bAfterLast ) + return 0; + return m_nRow; +} + +//virtual +void SAL_CALL CachedContentResultSet + ::refreshRow() +{ + impl_EnsureNotDisposed(); + + //the ContentResultSet is static and will not change + //therefore we don't need to reload anything +} + +//virtual +sal_Bool SAL_CALL CachedContentResultSet + ::rowUpdated() +{ + impl_EnsureNotDisposed(); + + //the ContentResultSet is static and will not change + return false; +} +//virtual +sal_Bool SAL_CALL CachedContentResultSet + ::rowInserted() +{ + impl_EnsureNotDisposed(); + + //the ContentResultSet is static and will not change + return false; +} + +//virtual +sal_Bool SAL_CALL CachedContentResultSet + ::rowDeleted() +{ + impl_EnsureNotDisposed(); + + //the ContentResultSet is static and will not change + return false; +} + +//virtual +Reference< XInterface > SAL_CALL CachedContentResultSet + ::getStatement() +{ + impl_EnsureNotDisposed(); + //@todo ?return anything + return Reference< XInterface >(); +} + + +// XRow methods. ( inherited ) + + +//virtual +sal_Bool SAL_CALL CachedContentResultSet + ::wasNull() +{ + impl_EnsureNotDisposed(); + impl_init_xRowOrigin(); + { + osl::Guard< osl::Mutex > aGuard( m_aMutex ); + if( m_bLastReadWasFromCache ) + return m_bLastCachedReadWasNull; + if( !m_xRowOrigin.is() ) + { + OSL_FAIL( "broadcaster was disposed already" ); + return false; + } + } + return m_xRowOrigin->wasNull(); +} + +//virtual +OUString SAL_CALL CachedContentResultSet + ::getString( sal_Int32 columnIndex ) +{ + return rowOriginGet<OUString>(&css::sdbc::XRow::getString, columnIndex); +} + +//virtual +sal_Bool SAL_CALL CachedContentResultSet + ::getBoolean( sal_Int32 columnIndex ) +{ + return rowOriginGet<sal_Bool>(&css::sdbc::XRow::getBoolean, columnIndex); +} + +//virtual +sal_Int8 SAL_CALL CachedContentResultSet + ::getByte( sal_Int32 columnIndex ) +{ + return rowOriginGet<sal_Int8>(&css::sdbc::XRow::getByte, columnIndex); +} + +//virtual +sal_Int16 SAL_CALL CachedContentResultSet + ::getShort( sal_Int32 columnIndex ) +{ + return rowOriginGet<sal_Int16>(&css::sdbc::XRow::getShort, columnIndex); +} + +//virtual +sal_Int32 SAL_CALL CachedContentResultSet + ::getInt( sal_Int32 columnIndex ) +{ + return rowOriginGet<sal_Int32>(&css::sdbc::XRow::getInt, columnIndex); +} + +//virtual +sal_Int64 SAL_CALL CachedContentResultSet + ::getLong( sal_Int32 columnIndex ) +{ + return rowOriginGet<sal_Int64>(&css::sdbc::XRow::getLong, columnIndex); +} + +//virtual +float SAL_CALL CachedContentResultSet + ::getFloat( sal_Int32 columnIndex ) +{ + return rowOriginGet<float>(&css::sdbc::XRow::getFloat, columnIndex); +} + +//virtual +double SAL_CALL CachedContentResultSet + ::getDouble( sal_Int32 columnIndex ) +{ + return rowOriginGet<double>(&css::sdbc::XRow::getDouble, columnIndex); +} + +//virtual +Sequence< sal_Int8 > SAL_CALL CachedContentResultSet + ::getBytes( sal_Int32 columnIndex ) +{ + return rowOriginGet< css::uno::Sequence<sal_Int8> >( + &css::sdbc::XRow::getBytes, columnIndex); +} + +//virtual +Date SAL_CALL CachedContentResultSet + ::getDate( sal_Int32 columnIndex ) +{ + return rowOriginGet<css::util::Date>( + &css::sdbc::XRow::getDate, columnIndex); +} + +//virtual +Time SAL_CALL CachedContentResultSet + ::getTime( sal_Int32 columnIndex ) +{ + return rowOriginGet<css::util::Time>( + &css::sdbc::XRow::getTime, columnIndex); +} + +//virtual +DateTime SAL_CALL CachedContentResultSet + ::getTimestamp( sal_Int32 columnIndex ) +{ + return rowOriginGet<css::util::DateTime>( + &css::sdbc::XRow::getTimestamp, columnIndex); +} + +//virtual +Reference< css::io::XInputStream > + SAL_CALL CachedContentResultSet + ::getBinaryStream( sal_Int32 columnIndex ) +{ + return rowOriginGet< css::uno::Reference<css::io::XInputStream> >( + &css::sdbc::XRow::getBinaryStream, columnIndex); +} + +//virtual +Reference< css::io::XInputStream > + SAL_CALL CachedContentResultSet + ::getCharacterStream( sal_Int32 columnIndex ) +{ + return rowOriginGet< css::uno::Reference<css::io::XInputStream> >( + &css::sdbc::XRow::getCharacterStream, columnIndex); +} + +//virtual +Any SAL_CALL CachedContentResultSet + ::getObject( sal_Int32 columnIndex, + const Reference< + css::container::XNameAccess >& typeMap ) +{ + //if you change this function please pay attention to + //function template rowOriginGet, where this is similar implemented + + osl::ResettableMutexGuard aGuard(m_aMutex); + sal_Int32 nRow = m_nRow; + sal_Int32 nFetchSize = m_nFetchSize; + sal_Int32 nFetchDirection = m_nFetchDirection; + if( !m_aCache.hasRow( nRow ) ) + { + bool isCleared = false; + if( !m_aCache.hasCausedException( nRow ) ) + { + if( !m_xFetchProvider.is() ) + { + OSL_FAIL( "broadcaster was disposed already" ); + return Any(); + } + isCleared = true; + aGuard.clear(); + + impl_fetchData( nRow, nFetchSize, nFetchDirection ); + } + if (isCleared) + { + aGuard.reset(); + } + if( !m_aCache.hasRow( nRow ) ) + { + m_bLastReadWasFromCache = false; + aGuard.clear(); + applyPositionToOrigin( nRow ); + impl_init_xRowOrigin(); + return m_xRowOrigin->getObject( columnIndex, typeMap ); + } + } + //@todo: pay attention to typeMap + const Any& rValue = m_aCache.getAny( nRow, columnIndex ); + m_bLastReadWasFromCache = true; + m_bLastCachedReadWasNull = !rValue.hasValue(); + return rValue; +} + +//virtual +Reference< XRef > SAL_CALL CachedContentResultSet + ::getRef( sal_Int32 columnIndex ) +{ + return rowOriginGet< css::uno::Reference<css::sdbc::XRef> >( + &css::sdbc::XRow::getRef, columnIndex); +} + +//virtual +Reference< XBlob > SAL_CALL CachedContentResultSet + ::getBlob( sal_Int32 columnIndex ) +{ + return rowOriginGet< css::uno::Reference<css::sdbc::XBlob> >( + &css::sdbc::XRow::getBlob, columnIndex); +} + +//virtual +Reference< XClob > SAL_CALL CachedContentResultSet + ::getClob( sal_Int32 columnIndex ) +{ + return rowOriginGet< css::uno::Reference<css::sdbc::XClob> >( + &css::sdbc::XRow::getClob, columnIndex); +} + +//virtual +Reference< XArray > SAL_CALL CachedContentResultSet + ::getArray( sal_Int32 columnIndex ) +{ + return rowOriginGet< css::uno::Reference<css::sdbc::XArray> >( + &css::sdbc::XRow::getArray, columnIndex); +} + + +// Type Converter Support + + +const Reference< XTypeConverter >& CachedContentResultSet::getTypeConverter() +{ + osl::Guard< osl::Mutex > aGuard( m_aMutex ); + + if ( !m_bTriedToGetTypeConverter && !m_xTypeConverter.is() ) + { + m_bTriedToGetTypeConverter = true; + m_xTypeConverter.set( Converter::create(m_xContext) ); + + OSL_ENSURE( m_xTypeConverter.is(), + "PropertyValueSet::getTypeConverter() - " + "Service 'com.sun.star.script.Converter' n/a!" ); + } + return m_xTypeConverter; +} + + + + +CachedContentResultSetFactory::CachedContentResultSetFactory( + const Reference< XComponentContext > & rxContext ) +{ + m_xContext = rxContext; +} + +CachedContentResultSetFactory::~CachedContentResultSetFactory() +{ +} + +// CachedContentResultSetFactory XServiceInfo methods. + +OUString SAL_CALL CachedContentResultSetFactory::getImplementationName() +{ + return "com.sun.star.comp.ucb.CachedContentResultSetFactory"; +} +sal_Bool SAL_CALL CachedContentResultSetFactory::supportsService( const OUString& ServiceName ) +{ + return cppu::supportsService( this, ServiceName ); +} +css::uno::Sequence< OUString > SAL_CALL CachedContentResultSetFactory::getSupportedServiceNames() +{ + return { "com.sun.star.ucb.CachedContentResultSetFactory" }; +} + +// Service factory implementation. + + + +extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface* +ucb_CachedContentResultSetFactory_get_implementation( + css::uno::XComponentContext* context , css::uno::Sequence<css::uno::Any> const&) +{ + return cppu::acquire(new CachedContentResultSetFactory(context)); +} + + +// CachedContentResultSetFactory XCachedContentResultSetFactory methods. + + + //virtual +Reference< XResultSet > SAL_CALL CachedContentResultSetFactory + ::createCachedContentResultSet( + const Reference< XResultSet > & xSource, + const Reference< XContentIdentifierMapping > & xMapping ) +{ + Reference< XResultSet > xRet = new CachedContentResultSet( m_xContext, xSource, xMapping ); + return xRet; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |