execContextInputFilter.hpp

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#ifndef _WOLFRAME_FILTER_EXEC_CONTEXT_INPUT_FILTER_HPP_INCLUDED
#define _WOLFRAME_FILTER_EXEC_CONTEXT_INPUT_FILTER_HPP_INCLUDED
#include "processor/execContext.hpp"
#include "filter/typedfilter.hpp"
#include <string>

namespace _Wolframe {
namespace langbind {

struct ExecContextElement
{
        enum Value
        {
                Const,
                UserName,
                SocketId,
                RemoteHost,
                ConnectionType,
                Authenticator,
                Resource
        };
        enum {MaxValue=(int)Resource};

        static const char* valueName( Value v)
        {
                static const char* ar[] = {"Const","UserName","SocketId","RemoteHost","ConnectionType","Authenticator","Resource"};
                return ar[v];
        }
        static Value valueFromId( const std::string& v);

        std::string name;               
        Value value;                    
        std::string const_value;        
        char value_delim;               
        std::size_t value_idx;          

        ExecContextElement()
                :value(Const),value_delim(0),value_idx(0){}
        ExecContextElement( const ExecContextElement& o)
                :name(o.name),value(o.value),const_value(o.const_value),value_delim(o.value_delim),value_idx(o.value_idx){}
        ExecContextElement( const std::string& name_, const std::string& const_value_)
                :name(name_),value(Const),const_value(const_value_),value_delim(0),value_idx(0){}
        ExecContextElement( const std::string& name_, Value value_)
                :name(name_),value(value_),value_delim(0),value_idx(0){}
        ExecContextElement( const std::string& name_, Value value_, char value_delim_, std::size_t value_idx_)
                :name(name_),value(value_),value_delim(value_delim_),value_idx(value_idx_){}
};

class ExecContextInputFilter
        :public langbind::TypedInputFilter
{
public:
        explicit ExecContextInputFilter( const std::vector<ExecContextElement>& params_, const proc::ExecContext& ctx_, const std::string& resource_);
        ExecContextInputFilter( const ExecContextInputFilter& o);
        virtual ~ExecContextInputFilter(){}

        virtual langbind::TypedInputFilter* copy() const
        {
                return new ExecContextInputFilter(*this);
        }

        const std::string& getElement( const std::string& ar, char delim, std::size_t idx);

        virtual bool getNext( ElementType& type, types::VariantConst& element);

        virtual void resetIterator();

private:
        int m_state;
        std::size_t m_paramidx;
        const std::vector<ExecContextElement>* m_params;
        const proc::ExecContext* m_ctx;
        std::string m_authorizationResource;
        std::string m_elembuf;
};

}}
#endif