DtMetaFileManager.h

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/******************************************************************************
** Copyright (c) 2018 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once

#include <vector>
#include <string>
#include <map>

#include <boost/thread/mutex.hpp>

#include <vrvCore/vrvCore.h>
#include <vrvUtil/DtVirtualBaseClass.h>


#include <rapidjson/document.h>     // rapidjson's DOM-style API

namespace makVrv
{
   class DtDe;
   class DtModelDefinition;

   class DT_DLL_VRVCORE DtMetaFileManager
   {
   public:
      struct NodeLinkage
      {
         std::string myNodeName;
         std::string myAnnotation;
      };

      typedef std::map<std::string, rapidjson::Document*> FileDocumentMap;
      typedef std::pair<NodeLinkage, std::vector<const rapidjson::Value*> > LinkageValuePair;
      typedef std::vector<LinkageValuePair> LinkageValueVec;

      friend class DtMetaFileManagerCreator;

      virtual ~DtMetaFileManager();

      std::string convertPathToMeta(const std::string& inPath);

      std::string convertModelDefToMeta(const DtModelDefinition* modelDef);

      bool pathHasMeta(const std::string& inPath);

      bool convertLoadAndParse(const DtModelDefinition* modelDef);

      bool convertLoadAndParse(const std::string& fileName);

      rapidjson::Document* retrieveFileData(const std::string& fileName);

      LinkageValueVec makeLinkagesAndFeaturesArray(
         rapidjson::Document* linkagesFeaturesDocument);

   public:
      //{@
      static const char* theTagFeatureName;
      static const char* theTagFeatureData;
      static const char* theTagNodeFeaturesTag;
      static const char* theTagTextureFeature;
      static const char* theTagComment;
      static const char* theTagLinkage;
      static const char* theTagLinkageNodeName;
      static const char* theTagLinkageAnnotationTag;

   protected:
            
      bool parseMetaFile(const std::string& fileName);
      
      DtMetaFileManager(DtDe& de);

   protected:
      FileDocumentMap myDocumentMap;

      DtDe& myDe;
      boost::mutex myMapMutex;
   };

   class DT_DLL_VRVCORE DtMetaFileManagerCreator : public DtVirtualBaseClass
   {

   public:

      static DtMetaFileManagerCreator& instance(DtDe& de);

      static void registerInstance(DtDe& de, DtMetaFileManagerCreator* instance);     

      virtual DtMetaFileManager* create(DtDe& de);

   };

}