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 /*
     This file is part of the syndication library
     SPDX-FileCopyrightText: 2005 Frank Osterfeld <osterfeld@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #ifndef SYNDICATION_PARSERCOLLECTIONIMPL_H
 #define SYNDICATION_PARSERCOLLECTIONIMPL_H
 
 #include <syndication/abstractparser.h>
 #include <syndication/documentsource.h>
 #include <syndication/feed.h>
 #include <syndication/global.h>
 #include <syndication/mapper.h>
 #include <syndication/parsercollection.h>
 #include <syndication/specificdocument.h>
 
 #include <QDomDocument>
 #include <QHash>
 #include <QString>
 
 namespace Syndication
 {
 //@cond PRIVATE
 /** @internal
  */
 // default implementation of ParserCollection. This is separated
 // from the interface to move the implementation out of the public API
 // (template classes require implementations to be in the header)
 
 template<class T>
 class SYNDICATION_EXPORT ParserCollectionImpl : public ParserCollection<T>
 {
 public:
     ParserCollectionImpl();
 
     ~ParserCollectionImpl() override;
 
     QSharedPointer<T> parse(const DocumentSource &source, const QString &formatHint = QString()) override;
 
     bool registerParser(AbstractParser *parser, Mapper<T> *mapper) override;
 
     void changeMapper(const QString &format, Mapper<T> *mapper) override;
 
     ErrorCode lastError() const override;
 
 private:
     ParserCollectionImpl(const ParserCollectionImpl &);
     ParserCollectionImpl &operator=(const ParserCollectionImpl &);
     QHash<QString, AbstractParser *> m_parsers;
     QHash<QString, Mapper<T> *> m_mappers;
     QList<AbstractParser *> m_parserList;
 
     ErrorCode m_lastError;
 };
 
 //@endcond
 
 // template <class T>
 // class ParserCollectionImpl<T>::ParserCollectionImplPrivate
 
 template<class T>
 ParserCollectionImpl<T>::ParserCollectionImpl()
 {
 }
 
 template<class T>
 ParserCollectionImpl<T>::~ParserCollectionImpl()
 {
     // Delete the values
     qDeleteAll(m_parsers);
     qDeleteAll(m_mappers);
 }
 
 template<class T>
 bool ParserCollectionImpl<T>::registerParser(AbstractParser *parser, Mapper<T> *mapper)
 {
     if (m_parsers.contains(parser->format())) {
         return false;
     }
 
     m_parserList.append(parser);
     m_parsers.insert(parser->format(), parser);
     m_mappers.insert(parser->format(), mapper);
     return true;
 }
 template<class T>
 void ParserCollectionImpl<T>::changeMapper(const QString &format, Mapper<T> *mapper)
 {
     m_mappers[format] = mapper;
 }
 
 template<class T>
 QSharedPointer<T> ParserCollectionImpl<T>::parse(const DocumentSource &source, const QString &formatHint)
 {
     m_lastError = Syndication::Success;
 
     if (!formatHint.isNull() && m_parsers.contains(formatHint)) {
         if (m_parsers[formatHint]->accept(source)) {
             SpecificDocumentPtr doc = m_parsers[formatHint]->parse(source);
             if (!doc->isValid()) {
                 m_lastError = InvalidFormat;
                 return FeedPtr();
             }
 
             return m_mappers[formatHint]->map(doc);
         }
     }
 
     for (AbstractParser *i : std::as_const(m_parserList)) {
         if (i->accept(source)) {
             SpecificDocumentPtr doc = i->parse(source);
             if (!doc->isValid()) {
                 m_lastError = InvalidFormat;
                 return FeedPtr();
             }
 
             return m_mappers[i->format()]->map(doc);
         }
     }
     if (source.asDomDocument().isNull()) {
         m_lastError = InvalidXml;
     } else {
         m_lastError = XmlNotAccepted;
     }
 
     return FeedPtr();
 }
 
 template<class T>
 Syndication::ErrorCode ParserCollectionImpl<T>::lastError() const
 {
     return m_lastError;
 }
 
 template<class T>
 ParserCollectionImpl<T>::ParserCollectionImpl(const ParserCollectionImpl &)
 {
 }
 
 template<class T>
 ParserCollectionImpl<T> &ParserCollectionImpl<T>::operator=(const ParserCollectionImpl &)
 {
     return *this;
 }
 
 } // namespace Syndication
 
 #endif // SYNDICATION_PARSERCOLLECTIONIMPL_H