RRVip.hxx

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#ifndef RESIP_RRVIP_HXX
#define RESIP_RRVIP_HXX
 
#include "rutil/dns/DnsStub.hxx"
 
namespace resip
{
 
class RRVip : public DnsStub::ResultTransform
{
   public:
      RRVip();
      ~RRVip();
 
      void vip(const Data& target, int rrType, const Data& vip);
      void removeVip(const Data& target, int rrType);
      void transform(const Data& target, int rrType, std::vector<DnsResourceRecord*>&);
 
   private:
 
      RRVip(const RRVip&);
      RRVip& operator=(const RRVip&);
 
      typedef std::vector<DnsResourceRecord*> RRVector;
      class Transform
      {
         public:
            Transform(const Data& vip);
            virtual ~Transform();
            virtual void transform(RRVector& rrs, bool& invalidVip);
            void updateVip(const Data& vip);
            const Data& vip() { return mVip; };
 
         protected:
            Data mVip; // ip for a/aaaa, target host for srv, and replacement for naptr.
      };
 
      class NaptrTransform : public Transform
      {
         public:
            NaptrTransform(const Data& vip);
            void transform(RRVector& rrs, bool&);
      };
 
      class SrvTransform : public Transform
      {
         public:
            SrvTransform(const Data& vip);
            void transform(RRVector& rrs, bool&);
      };
 
      class MapKey
      {
         public:
            MapKey();
            MapKey(const Data& target, int rrType);
            bool operator<(const MapKey&) const;
         private:
            Data mTarget;
            int mRRType;
      };
 
      class TransformFactory
      {
         public:
            virtual ~TransformFactory() {}
            virtual Transform* createTransform(const Data& vip) = 0;
      };
 
      class HostTransformFactory : public TransformFactory
      {
         public:
            Transform* createTransform(const Data& vip) { return new Transform(vip); }
      };
 
      class NaptrTransformFactroy : public TransformFactory
      {
         public:
            Transform* createTransform(const Data& vip) { return new NaptrTransform(vip); }
      };
 
      class SrvTransformFactory : public TransformFactory
      {
         public:
            Transform* createTransform(const Data& vip) { return new SrvTransform(vip); }
      };
 
      typedef std::map<int, TransformFactory*> TransformFactoryMap;
      TransformFactoryMap  mFactories;
 
      typedef std::map<MapKey, Transform*> TransformMap;
      TransformMap mTransforms;  
};
 
}
 
#endif
 
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