ResFilters.h

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#ifndef ZYPP_RESFILTERS_H
#define ZYPP_RESFILTERS_H

#include <boost/function.hpp>

#include "zypp/base/Functional.h"
#include "zypp/Filter.h"
#include "zypp/Resolvable.h"

#include "zypp/PoolItem.h"
#include "zypp/Repository.h"

namespace zypp
{ 
  namespace resfilter
  { 

    //
    // Some ResObject attributes
    //

    typedef std::unary_function<ResObject::constPtr, bool> ResObjectFilterFunctor;
    typedef boost::function<bool ( ResObject::constPtr )> ResFilter;

    template<class TRes>
      inline filter::ByKind byKind()
      { return filter::ByKind( ResTraits<TRes>::kind ); }

    struct ByName : public ResObjectFilterFunctor
    {
      ByName()
      {}

      ByName( const std::string & name_r )
      : _name( name_r )
      {}

      bool operator()( ResObject::constPtr p ) const
      {
        return p->name() == _name;
      }

      std::string _name;
    };

    struct ByRepository : public ResObjectFilterFunctor
    {
      ByRepository( Repository repository_r )
      : _alias( repository_r.info().alias() )
      {}

      ByRepository( const std::string & alias_r )
      : _alias( alias_r )
      {}

      bool operator()( ResObject::constPtr p ) const
      {
        return p->repoInfo().alias() == _alias;
      }

      std::string _alias;
    };

    template<class TCompare = CompareByEQ<Edition> >
      struct ByEdition : public ResObjectFilterFunctor
      {
        ByEdition( const Edition & edition_r, TCompare cmp_r )
        : _edition( edition_r )
        , _cmp( cmp_r )
        {}

        bool operator()( ResObject::constPtr p ) const
        {
          return _cmp( p->edition(), _edition );
        }

        Edition  _edition;
        TCompare _cmp;
      };

    template<class TCompare>
      ByEdition<TCompare> byEdition( const Edition & edition_r, TCompare cmp_r )
      { return ByEdition<TCompare>( edition_r, cmp_r ); }

    template<class TCompare>
      ByEdition<TCompare> byEdition( const Edition & edition_r )
      { return byEdition( edition_r, TCompare() ); }


    template<class TCompare = CompareByEQ<Arch> >
      struct ByArch : public ResObjectFilterFunctor
      {
        ByArch( const Arch & arch_r, TCompare cmp_r )
        : _arch( arch_r )
        , _cmp( cmp_r )
        {}

        bool operator()( ResObject::constPtr p ) const
        {
          return _cmp( p->arch(), _arch );
        }

        Arch  _arch;
        TCompare _cmp;
      };

    template<class TCompare>
      ByArch<TCompare> byArch( const Arch & arch_r, TCompare cmp_r )
      { return ByArch<TCompare>( arch_r, cmp_r ); }

    template<class TCompare>
      ByArch<TCompare> byArch( const Arch & arch_r )
      { return byArch( arch_r, TCompare() ); }



    //
    // Some PoolItem attributes
    //

    typedef std::unary_function<PoolItem, bool> PoolItemFilterFunctor;

    struct ByInstalled : public PoolItemFilterFunctor
    {
      bool operator()( const PoolItem & p ) const
      {
        return p.status().isInstalled();
      }
    };

    struct ByUninstalled : public PoolItemFilterFunctor
    {
      bool operator()( const PoolItem & p ) const
      {
        return p.status().isUninstalled();
      }
    };

    struct ByTransact : public PoolItemFilterFunctor
    {
      bool operator()( const PoolItem & p ) const
      {
        return p.status().transacts();
      }
    };

    struct ByLock : public PoolItemFilterFunctor
    {
      bool operator()( const PoolItem & p ) const
      {
        return p.status().isLocked();
      }
    };

    struct ByKeep : public PoolItemFilterFunctor
    {
      bool operator()( const PoolItem & p ) const
      {
        return p.status().isKept();
      }
    };

    struct ByRecommended : public PoolItemFilterFunctor
    {
      bool operator()( const PoolItem & p ) const
      {
        return p.status().isRecommended();
      }
    };

    struct BySuggested : public PoolItemFilterFunctor
    {
      bool operator()( const PoolItem & p ) const
      {
        return p.status().isSuggested();
      }
    };

  } // namespace resfilter
} // namespace zypp
#endif // ZYPP_RESFILTERS_H