    /* -*- 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 <com/sun/star/xml/AttributeData.hpp>
    #include <com/sun/star/beans/XMultiPropertySet.hpp>
    #include <com/sun/star/lang/IllegalArgumentException.hpp>
    #include <com/sun/star/lang/WrappedTargetException.hpp>
    #include <com/sun/star/beans/UnknownPropertyException.hpp>
    #include <com/sun/star/beans/PropertyVetoException.hpp>
    #include <com/sun/star/beans/TolerantPropertySetResultType.hpp>
    #include <rtl/ustrbuf.hxx>
    #include <sal/log.hxx>
    #include <osl/diagnose.h>
    #include <xmloff/xmlprmap.hxx>
    #include <xmloff/nmspmap.hxx>
    #include <xmloff/xmlimppr.hxx>
    #include <xmloff/xmlimp.hxx>

    #include <xmloff/unoatrcn.hxx>
    #include <xmloff/xmlnmspe.hxx>
    #include <xmloff/xmltoken.hxx>
    #include <xmloff/xmlerror.hxx>
    #include <xmloff/contextid.hxx>
    #include <xmloff/xmltypes.hxx>
    #include <xmloff/maptype.hxx>

    #include <algorithm>
    #include <utility>
    #include <vector>

    using namespace ::com::sun::star::uno;
    using namespace ::com::sun::star::beans;
    using namespace ::com::sun::star::container;
    using namespace ::com::sun::star::xml;
    using namespace ::com::sun::star::xml::sax;

    using namespace ::std;
    using namespace ::xmloff::token;
    using ::com::sun::star::lang::IllegalArgumentException;
    using ::com::sun::star::lang::WrappedTargetException;
    using ::com::sun::star::beans::UnknownPropertyException;
    using ::com::sun::star::beans::PropertyVetoException;

    SvXMLImportPropertyMapper::SvXMLImportPropertyMapper(
            const rtl::Reference< XMLPropertySetMapper >& rMapper,
            SvXMLImport& rImp ):
        rImport(rImp),
        maPropMapper  ( rMapper )
    {
    }

    SvXMLImportPropertyMapper::~SvXMLImportPropertyMapper()
    {
        mxNextMapper = nullptr;
    }

    void SvXMLImportPropertyMapper::ChainImportMapper(
            const rtl::Reference< SvXMLImportPropertyMapper>& rMapper )
    {
        // add map entries from rMapper to current map
        maPropMapper->AddMapperEntry( rMapper->getPropertySetMapper() );
        // rMapper uses the same map as 'this'
        rMapper->maPropMapper = maPropMapper;

        // set rMapper as last mapper in current chain
        rtl::Reference< SvXMLImportPropertyMapper > xNext = mxNextMapper;
        if( xNext.is())
        {
            while( xNext->mxNextMapper.is())
                xNext = xNext->mxNextMapper;
            xNext->mxNextMapper = rMapper;
        }
        else
            mxNextMapper = rMapper;

        // if rMapper was already chained, correct
        // map pointer of successors
        xNext = rMapper;

        while( xNext->mxNextMapper.is())
        {
            xNext = xNext->mxNextMapper;
            xNext->maPropMapper = maPropMapper;
        }
    }

    /** fills the given itemset with the attributes in the given list */
    void SvXMLImportPropertyMapper::importXML(
            vector< XMLPropertyState >& rProperties,
            const Reference< XAttributeList >& xAttrList,
            const SvXMLUnitConverter& rUnitConverter,
            const SvXMLNamespaceMap& rNamespaceMap,
            sal_uInt32 nPropType,
            sal_Int32 nStartIdx,
            sal_Int32 nEndIdx ) const
    {
        sal_Int16 nAttr = xAttrList->getLength();

        Reference< XNameContainer > xAttrContainer;

        if( -1 == nStartIdx )
            nStartIdx = 0;
        if( -1 == nEndIdx )
            nEndIdx = maPropMapper->GetEntryCount();
        for( sal_Int16 i=0; i < nAttr; i++ )
        {
            const OUString& rAttrName = xAttrList->getNameByIndex( i );
            OUString aLocalName, aPrefix, aNamespace;
            sal_uInt16 nPrefix = rNamespaceMap.GetKeyByAttrName( rAttrName, &aPrefix,
                                                        &aLocalName, &aNamespace );

            if( XML_NAMESPACE_XMLNS == nPrefix )
                continue;

            const OUString& rValue = xAttrList->getValueByIndex( i );

            // index of actual property map entry
            // This looks very strange, but it works well:
            // If the start index is 0, the new value will become -1, and
            // GetEntryIndex will start searching with position 0.
            // Otherwise GetEntryIndex will start with the next position specified.
            sal_Int32 nIndex =  nStartIdx - 1;
            sal_uInt32 nFlags = 0;  // flags of actual property map entry
            bool bFound = false;

            // for better error reporting: this should be set true if no
            // warning is needed
            bool bNoWarning = false;
            bool bAlienImport = false;

            do
            {
                // find an entry for this attribute
                nIndex = maPropMapper->GetEntryIndex( nPrefix, aLocalName,
                                                      nPropType, nIndex );

                if( nIndex > -1 && nIndex < nEndIdx  )
                {
                    // create a XMLPropertyState with an empty value

                    nFlags = maPropMapper->GetEntryFlags( nIndex );
                    if( (( nFlags & MID_FLAG_NO_PROPERTY ) == MID_FLAG_NO_PROPERTY) && (maPropMapper->GetEntryContextId( nIndex ) == CTF_ALIEN_ATTRIBUTE_IMPORT) )
                    {
                        bAlienImport = true;
                        nIndex = -1;
                    }
                    else
                    {
                        if( ( nFlags & MID_FLAG_ELEMENT_ITEM_IMPORT ) == 0 )
                        {
                            XMLPropertyState aNewProperty( nIndex );
                            sal_Int32 nReference = -1;

                            // if this is a multi attribute check if another attribute already set
                            // this any. If so use this as a initial value
                            if( ( nFlags & MID_FLAG_MERGE_PROPERTY ) != 0 )
                            {
                                const OUString aAPIName( maPropMapper->GetEntryAPIName( nIndex ) );
                                const sal_Int32 nSize = rProperties.size();
                                for( nReference = 0; nReference < nSize; nReference++ )
                                {
                                    sal_Int32 nRefIdx = rProperties[nReference].mnIndex;
                                    if( (nRefIdx != -1) && (nIndex != nRefIdx) &&
                                        (maPropMapper->GetEntryAPIName( nRefIdx ) == aAPIName ))
                                    {
                                        aNewProperty = rProperties[nReference];
                                        aNewProperty.mnIndex = nIndex;
                                        break;
                                    }
                                }

                                if( nReference == nSize )
                                    nReference = -1;
                            }

                            bool bSet = false;
                            if( ( nFlags & MID_FLAG_SPECIAL_ITEM_IMPORT ) == 0 )
                            {
                                // let the XMLPropertySetMapper decide how to import the value
                                bSet = maPropMapper->importXML( rValue, aNewProperty,
                                                         rUnitConverter );
                            }
                            else
                            {
                                sal_uInt32 nOldSize = rProperties.size();

                                bSet = handleSpecialItem( aNewProperty, rProperties,
                                                          rValue, rUnitConverter,
                                                             rNamespaceMap );

                                // no warning if handleSpecialItem added properties
                                bNoWarning |= ( nOldSize != rProperties.size() );
                            }

                            // no warning if we found could set the item. This
                            // 'remembers' bSet across multi properties.
                            bNoWarning |= bSet;

                            // store the property in the given vector
                            if( bSet )
                            {
                                if( nReference == -1 )
                                    rProperties.push_back( aNewProperty );
                                else
                                    rProperties[nReference] = aNewProperty;
                            }
                            else
                            {
                                // warn about unknown value. Unless it's a
                                // multi property: Then we get another chance
                                // to set the value.
                                if( !bNoWarning &&
                                    ((nFlags & MID_FLAG_MULTI_PROPERTY) == 0) )
                                {
                                    Sequence<OUString> aSeq(2);
                                    aSeq[0] = rAttrName;
                                    aSeq[1] = rValue;
                                    rImport.SetError( XMLERROR_FLAG_WARNING |
                                                      XMLERROR_STYLE_ATTR_VALUE,
                                                      aSeq );
                                }
                            }
                        }
                        bFound = true;
                        continue;
                    }
                }

                if( !bFound )
                {
                    SAL_INFO_IF((XML_NAMESPACE_NONE != nPrefix) &&
                                !(XML_NAMESPACE_UNKNOWN_FLAG & nPrefix) &&
                                !bAlienImport, "xmloff.style",
                                "unknown attribute: \"" << rAttrName << "\"");
                    if( (XML_NAMESPACE_UNKNOWN_FLAG & nPrefix) || (XML_NAMESPACE_NONE == nPrefix) || bAlienImport )
                    {
                        if( !xAttrContainer.is() )
                        {
                            // add an unknown attribute container to the properties
                            Reference< XNameContainer > xNew( SvUnoAttributeContainer_CreateInstance(), UNO_QUERY );
                            xAttrContainer = xNew;

                            // find map entry and create new property state
                            if( -1 == nIndex )
                            {
                                switch( nPropType )
                                {
                                    case XML_TYPE_PROP_CHART:
                                        nIndex = maPropMapper->FindEntryIndex( "ChartUserDefinedAttributes", XML_NAMESPACE_TEXT, GetXMLToken(XML_XMLNS) );
                                        break;
                                    case XML_TYPE_PROP_PARAGRAPH:
                                        nIndex = maPropMapper->FindEntryIndex( "ParaUserDefinedAttributes", XML_NAMESPACE_TEXT, GetXMLToken(XML_XMLNS) );
                                        break;
                                    case  XML_TYPE_PROP_TEXT:
                                        nIndex = maPropMapper->FindEntryIndex( "TextUserDefinedAttributes", XML_NAMESPACE_TEXT, GetXMLToken(XML_XMLNS) );
                                        break;
                                    default:
                                        break;
                                }
                                // other property type or property not found
                                if( -1 == nIndex )
                                    nIndex = maPropMapper->FindEntryIndex( "UserDefinedAttributes", XML_NAMESPACE_TEXT, GetXMLToken(XML_XMLNS) );
                            }

                            // #106963#; use userdefined attribute only if it is in the specified property range
                            if( nIndex != -1 && nIndex >= nStartIdx && nIndex < nEndIdx)
                            {
                                XMLPropertyState aNewProperty( nIndex, Any(xAttrContainer) );

                                // push it on our stack so we export it later
                                rProperties.push_back( aNewProperty );
                            }
                        }

                        if( xAttrContainer.is() )
                        {
                            AttributeData aData;
                            aData.Type = GetXMLToken( XML_CDATA );
                            aData.Value = rValue;

                            OUStringBuffer sName;
                            if( XML_NAMESPACE_NONE != nPrefix )
                            {
                                sName.append( aPrefix );
                                sName.append( ':' );
                                aData.Namespace = aNamespace;
                            }

                            sName.append( aLocalName );

                            xAttrContainer->insertByName( sName.makeStringAndClear(), Any(aData) );
                        }
                    }
                }
            }
            while( ( nIndex >= 0 && nIndex + 1 < nEndIdx ) && (( nFlags & MID_FLAG_MULTI_PROPERTY ) != 0 ) );
        }

        finished( rProperties, nStartIdx, nEndIdx );
    }

    /** this method is called for every item that has the MID_FLAG_SPECIAL_ITEM_IMPORT flag set */
    bool SvXMLImportPropertyMapper::handleSpecialItem(
            XMLPropertyState& rProperty,
            vector< XMLPropertyState >& rProperties,
            const OUString& rValue,
            const SvXMLUnitConverter& rUnitConverter,
            const SvXMLNamespaceMap& rNamespaceMap ) const
    {
        OSL_ENSURE( mxNextMapper.is(), "unsupported special item in xml import" );
        if( mxNextMapper.is() )
            return mxNextMapper->handleSpecialItem( rProperty, rProperties, rValue,
                                                   rUnitConverter, rNamespaceMap );
        else
            return false;
    }

    void SvXMLImportPropertyMapper::FillPropertySequence(
                const ::std::vector< XMLPropertyState >& rProperties,
                css::uno::Sequence< css::beans::PropertyValue >& rValues )
                const
    {
        sal_Int32 nCount = rProperties.size();
        sal_Int32 nValueCount = 0;
        rValues.realloc( nCount );
        PropertyValue *pProps = rValues.getArray();
        for( sal_Int32 i=0; i < nCount; i++ )
        {
            const XMLPropertyState& rProp = rProperties[i];
            sal_Int32 nIdx = rProp.mnIndex;
            if( nIdx == -1 )
                continue;
            pProps->Name = maPropMapper->GetEntryAPIName( nIdx );
            if( !pProps->Name.isEmpty() )
            {
                pProps->Value = rProp.maValue;
                ++pProps;
                ++nValueCount;
            }
        }
        if( nValueCount < nCount )
            rValues.realloc( nValueCount );
    }

    void SvXMLImportPropertyMapper::CheckSpecialContext(
                const ::std::vector< XMLPropertyState >& aProperties,
                const css::uno::Reference< css::beans::XPropertySet >& rPropSet,
                ContextID_Index_Pair* pSpecialContextIds ) const
    {
        OSL_ENSURE( rPropSet.is(), "need an XPropertySet" );
        sal_Int32 nCount = aProperties.size();

        for( sal_Int32 i=0; i < nCount; i++ )
        {
            const XMLPropertyState& rProp = aProperties[i];
            sal_Int32 nIdx = rProp.mnIndex;

            // disregard property state if it has an invalid index
            if( -1 == nIdx )
                continue;

            const sal_Int32 nPropFlags = maPropMapper->GetEntryFlags( nIdx );

            // handle no-property and special items
            if( ( pSpecialContextIds != nullptr ) &&
                ( ( 0 != ( nPropFlags & MID_FLAG_NO_PROPERTY_IMPORT ) ) ||
                  ( 0 != ( nPropFlags & MID_FLAG_SPECIAL_ITEM_IMPORT ) )   ) )
            {
                // maybe it's one of our special context ids?
                sal_Int16 nContextId = maPropMapper->GetEntryContextId(nIdx);

                for ( sal_Int32 n = 0;
                      pSpecialContextIds[n].nContextID != -1;
                      n++ )
                {
                    // found: set index in pSpecialContextIds array
                    if ( pSpecialContextIds[n].nContextID == nContextId )
                    {
                        pSpecialContextIds[n].nIndex = i;
                        break; // early out
                    }
                }
            }
        }

    }

    bool SvXMLImportPropertyMapper::FillPropertySet(
                const vector< XMLPropertyState >& aProperties,
                const Reference< XPropertySet >& rPropSet,
                ContextID_Index_Pair* pSpecialContextIds ) const
    {
        bool bSet = false;

        Reference< XTolerantMultiPropertySet > xTolPropSet( rPropSet, UNO_QUERY );
        if (xTolPropSet.is())
            bSet = FillTolerantMultiPropertySet_( aProperties, xTolPropSet, maPropMapper, rImport,
                                                pSpecialContextIds );

        if (!bSet)
        {
            // get property set info
            Reference< XPropertySetInfo > xInfo(rPropSet->getPropertySetInfo());

            // check for multi-property set
            Reference<XMultiPropertySet> xMultiPropSet( rPropSet, UNO_QUERY );
            if ( xMultiPropSet.is() )
            {
                // Try XMultiPropertySet. If that fails, try the regular route.
                bSet = FillMultiPropertySet_( aProperties, xMultiPropSet,
                                            xInfo, maPropMapper,
                                            pSpecialContextIds );
                if ( !bSet )
                    bSet = FillPropertySet_( aProperties, rPropSet,
                                            xInfo, maPropMapper, rImport,
                                            pSpecialContextIds);
            }
            else
                bSet = FillPropertySet_( aProperties, rPropSet, xInfo,
                                        maPropMapper, rImport,
                                        pSpecialContextIds );
        }

        return bSet;
    }

    bool SvXMLImportPropertyMapper::FillPropertySet_(
        const vector<XMLPropertyState> & rProperties,
        const Reference<XPropertySet> & rPropSet,
        const Reference<XPropertySetInfo> & rPropSetInfo,
        const rtl::Reference<XMLPropertySetMapper> & rPropMapper,
        SvXMLImport& rImport,
        ContextID_Index_Pair* pSpecialContextIds )
    {
        OSL_ENSURE( rPropSet.is(), "need an XPropertySet" );
        OSL_ENSURE( rPropSetInfo.is(), "need an XPropertySetInfo" );

        // preliminaries
        bool bSet = false;
        sal_Int32 nCount = rProperties.size();

        // iterate over property states that we want to set
        for( sal_Int32 i=0; i < nCount; i++ )
        {
            const XMLPropertyState& rProp = rProperties[i];
            sal_Int32 nIdx = rProp.mnIndex;

            // disregard property state if it has an invalid index
            if( -1 == nIdx )
                continue;

            const OUString& rPropName = rPropMapper->GetEntryAPIName( nIdx );
            const sal_Int32 nPropFlags = rPropMapper->GetEntryFlags( nIdx );

            if ( ( 0 == ( nPropFlags & MID_FLAG_NO_PROPERTY ) ) &&
                 ( ( 0 != ( nPropFlags & MID_FLAG_MUST_EXIST ) ) ||
                   rPropSetInfo->hasPropertyByName( rPropName ) )    )
            {
                // try setting the property
                try
                {
                    rPropSet->setPropertyValue( rPropName, rProp.maValue );
                    bSet = true;
                }
                catch ( const IllegalArgumentException& e )
                {
                    // illegal value: check whether this property is
                    // allowed to throw this exception
                    if ( 0 == ( nPropFlags & MID_FLAG_PROPERTY_MAY_THROW ) )
                    {
                        Sequence<OUString> aSeq { rPropName };
                        rImport.SetError(
                            XMLERROR_STYLE_PROP_VALUE | XMLERROR_FLAG_ERROR,
                            aSeq, e.Message, nullptr );
                    }
                }
                catch ( const UnknownPropertyException& e )
                {
                    // unknown property: This is always an error!
                    Sequence<OUString> aSeq { rPropName };
                    rImport.SetError(
                        XMLERROR_STYLE_PROP_UNKNOWN | XMLERROR_FLAG_ERROR,
                        aSeq, e.Message, nullptr );
                }
                catch ( const PropertyVetoException& e )
                {
                    // property veto: this shouldn't happen
                    Sequence<OUString> aSeq { rPropName };
                    rImport.SetError(
                        XMLERROR_STYLE_PROP_OTHER | XMLERROR_FLAG_ERROR,
                        aSeq, e.Message, nullptr );
                }
                catch ( const WrappedTargetException& e )
                {
                    // wrapped target: this shouldn't happen either
                    Sequence<OUString> aSeq { rPropName };
                    rImport.SetError(
                        XMLERROR_STYLE_PROP_OTHER | XMLERROR_FLAG_ERROR,
                        aSeq, e.Message, nullptr );
                }
            }

            // handle no-property and special items
            if( ( pSpecialContextIds != nullptr ) &&
                ( ( 0 != ( nPropFlags & MID_FLAG_NO_PROPERTY_IMPORT ) ) ||
                  ( 0 != ( nPropFlags & MID_FLAG_SPECIAL_ITEM_IMPORT ) )   ) )
            {
                // maybe it's one of our special context ids?
                sal_Int16 nContextId = rPropMapper->GetEntryContextId(nIdx);

                for ( sal_Int32 n = 0;
                      pSpecialContextIds[n].nContextID != -1;
                      n++ )
                {
                    // found: set index in pSpecialContextIds array
                    if ( pSpecialContextIds[n].nContextID == nContextId )
                    {
                        pSpecialContextIds[n].nIndex = i;
                        break; // early out
                    }
                }
            }
        }

        return bSet;
    }

    typedef pair<const OUString*, const Any* > PropertyPair;
    typedef vector<PropertyPair> PropertyPairs;

    struct PropertyPairLessFunctor
    {
        bool operator()( const PropertyPair& a, const PropertyPair& b ) const
        {
            return (*a.first < *b.first);
        }
    };

    void SvXMLImportPropertyMapper::PrepareForMultiPropertySet_(
        const vector<XMLPropertyState> & rProperties,
        const Reference<XPropertySetInfo> & rPropSetInfo,
        const rtl::Reference<XMLPropertySetMapper> & rPropMapper,
        ContextID_Index_Pair* pSpecialContextIds,
        Sequence<OUString>& rNames,
        Sequence<Any>& rValues)
    {
        sal_Int32 nCount = rProperties.size();

        // property pairs structure stores names + values of properties to be set.
        PropertyPairs aPropertyPairs;
        aPropertyPairs.reserve( nCount );

        // iterate over property states that we want to set
        sal_Int32 i;
        for( i = 0; i < nCount; i++ )
        {
            const XMLPropertyState& rProp = rProperties[i];
            sal_Int32 nIdx = rProp.mnIndex;

            // disregard property state if it has an invalid index
            if( -1 == nIdx )
                continue;

            const OUString& rPropName = rPropMapper->GetEntryAPIName( nIdx );
            const sal_Int32 nPropFlags = rPropMapper->GetEntryFlags( nIdx );

            if ( ( 0 == ( nPropFlags & MID_FLAG_NO_PROPERTY ) ) &&
                 ( ( 0 != ( nPropFlags & MID_FLAG_MUST_EXIST ) ) ||
                   !rPropSetInfo.is() ||
                   (rPropSetInfo.is() && rPropSetInfo->hasPropertyByName( rPropName )) ) )
            {
                // save property into property pair structure
                aPropertyPairs.emplace_back( &rPropName, &rProp.maValue );
            }

            // handle no-property and special items
            if( ( pSpecialContextIds != nullptr ) &&
                ( ( 0 != ( nPropFlags & MID_FLAG_NO_PROPERTY_IMPORT ) ) ||
                  ( 0 != ( nPropFlags & MID_FLAG_SPECIAL_ITEM_IMPORT ) )   ) )
            {
                // maybe it's one of our special context ids?
                sal_Int16 nContextId = rPropMapper->GetEntryContextId(nIdx);
                for ( sal_Int32 n = 0;
                      pSpecialContextIds[n].nContextID != -1;
                      n++ )
                {
                    // found: set index in pSpecialContextIds array
                    if ( pSpecialContextIds[n].nContextID == nContextId )
                    {
                        pSpecialContextIds[n].nIndex = i;
                        break; // early out
                    }
                }
            }
        }

        // We now need to construct the sequences and actually the set
        // values.

        // sort the property pairs
        sort( aPropertyPairs.begin(), aPropertyPairs.end(),
              PropertyPairLessFunctor());

        // create sequences
        rNames.realloc( aPropertyPairs.size() );
        OUString* pNamesArray = rNames.getArray();
        rValues.realloc( aPropertyPairs.size() );
        Any* pValuesArray = rValues.getArray();

        // copy values into sequences
        i = 0;
        for( PropertyPairs::iterator aIter = aPropertyPairs.begin();
             aIter != aPropertyPairs.end();
             ++aIter )
        {
            pNamesArray[i] = *(aIter->first);
            pValuesArray[i++] = *(aIter->second);
        }
    }

    bool SvXMLImportPropertyMapper::FillMultiPropertySet_(
        const vector<XMLPropertyState> & rProperties,
        const Reference<XMultiPropertySet> & rMultiPropSet,
        const Reference<XPropertySetInfo> & rPropSetInfo,
        const rtl::Reference<XMLPropertySetMapper> & rPropMapper,
        ContextID_Index_Pair* pSpecialContextIds )
    {
        OSL_ENSURE( rMultiPropSet.is(), "Need multi property set. ");
        OSL_ENSURE( rPropSetInfo.is(), "Need property set info." );

        bool bSuccessful = false;

        Sequence<OUString> aNames;
        Sequence<Any> aValues;

        PrepareForMultiPropertySet_(rProperties, rPropSetInfo, rPropMapper, pSpecialContextIds,
            aNames, aValues);

        // and, finally, try to set the values
        try
        {
            rMultiPropSet->setPropertyValues( aNames, aValues );
            bSuccessful = true;
        }
        catch ( ... )
        {
            OSL_ENSURE(bSuccessful, "Exception caught; style may not be imported correctly.");
        }

        return bSuccessful;
    }

    bool SvXMLImportPropertyMapper::FillTolerantMultiPropertySet_(
        const vector<XMLPropertyState> & rProperties,
        const Reference<XTolerantMultiPropertySet> & rTolMultiPropSet,
        const rtl::Reference<XMLPropertySetMapper> & rPropMapper,
        SvXMLImport& rImport,
        ContextID_Index_Pair* pSpecialContextIds )
    {
        OSL_ENSURE( rTolMultiPropSet.is(), "Need tolerant multi property set. ");

        bool bSuccessful = false;

        Sequence<OUString> aNames;
        Sequence<Any> aValues;

        PrepareForMultiPropertySet_(rProperties, Reference<XPropertySetInfo>(nullptr), rPropMapper, pSpecialContextIds,
            aNames, aValues);

        // and, finally, try to set the values
        try
        {
            Sequence< SetPropertyTolerantFailed > aResults(rTolMultiPropSet->setPropertyValuesTolerant( aNames, aValues ));
            if (aResults.getLength() == 0)
                bSuccessful = true;
            else
            {
                sal_Int32 nCount(aResults.getLength());
                for( sal_Int32 i = 0; i < nCount; ++i)
                {
                    Sequence<OUString> aSeq { aResults[i].Name };
                    OUString sMessage;
                    switch (aResults[i].Result)
                    {
                    case TolerantPropertySetResultType::UNKNOWN_PROPERTY :
                        sMessage = "UNKNOWN_PROPERTY";
                        break;
                    case TolerantPropertySetResultType::ILLEGAL_ARGUMENT :
                        sMessage = "ILLEGAL_ARGUMENT";
                        break;
                    case TolerantPropertySetResultType::PROPERTY_VETO :
                        sMessage = "PROPERTY_VETO";
                        break;
                    case TolerantPropertySetResultType::WRAPPED_TARGET :
                        sMessage = "WRAPPED_TARGET";
                        break;
                    };
                    rImport.SetError(
                        XMLERROR_STYLE_PROP_OTHER | XMLERROR_FLAG_ERROR,
                        aSeq, sMessage, nullptr );
                }
            }
        }
        catch ( ... )
        {
            OSL_ENSURE(bSuccessful, "Exception caught; style may not be imported correctly.");
        }

        return bSuccessful;
    }

    void SvXMLImportPropertyMapper::finished(
            vector< XMLPropertyState >& rProperties,
            sal_Int32 nStartIndex, sal_Int32 nEndIndex ) const
    {
        // nothing to do here
        if( mxNextMapper.is() )
            mxNextMapper->finished( rProperties, nStartIndex, nEndIndex );
    }

    /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

↑ V728 An excessive check can be simplified. The '||' operator is surrounded by opposite expressions '!rPropSetInfo.is()' and 'rPropSetInfo.is()'.