VFSSvc.h

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#ifndef GaudiSvc_VFSSvc_H
#define GaudiSvc_VFSSvc_H 1

// Include files
#include "GaudiKernel/HashMap.h"
#include "GaudiKernel/IFileAccess.h"
#include "GaudiKernel/Service.h"

#include <list>

// Forward declarations
class IToolSvc;
class IAlgTool;

class VFSSvc : public extends<Service, IFileAccess>
{
public:
  StatusCode initialize() override;
  StatusCode finalize() override;

  std::unique_ptr<std::istream> open( const std::string& url ) override;

  const std::vector<std::string>& protocols() const override;

  using extends::extends;

  ~VFSSvc() override = default; 

private:
  Gaudi::Property<std::vector<std::string>> m_urlHandlersNames{
      this, "FileAccessTools", {{"FileReadTool"}}, "List of tools implementing the IFileAccess interface."};
  Gaudi::Property<std::string> m_fallBackProtocol{this, "FallBackProtocol", "file",
                                                  "URL prefix to use if the prefix is not present."};

  std::vector<std::string> m_protocols;

  GaudiUtils::HashMap<std::string, std::vector<IFileAccess*>> m_urlHandlers;

  SmartIF<IToolSvc> m_toolSvc;

  std::vector<IAlgTool*> m_acquiredTools;
};

#endif