vtkURILoader.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkURILoader_h
#define vtkURILoader_h
 
#include "vtkIOCoreModule.h" // For export macro
#include "vtkObject.h"
#include "vtkResourceStream.h" // For vtkResourceStream
#include "vtkSmartPointer.h"   // For vtkSmartPointer
#include "vtkURI.h"            // For vtkURI
 
#include <cstdint> // for std::int32_t
#include <cstdlib> // for std::size_t
#include <memory>  // for std::unique_ptr
#include <string>  // for std::string
 
VTK_ABI_NAMESPACE_BEGIN
 
class VTKIOCORE_EXPORT vtkURILoader : public vtkObject
{
  struct vtkInternals;
 
public:
  vtkTypeMacro(vtkURILoader, vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent) override;
  static vtkURILoader* New();
 
 
  bool SetBaseURI(const std::string& uri);
  bool SetBaseURI(vtkURI* uri);
 
  vtkURI* GetBaseURI() const;
 
  bool HasBaseURI() const { return this->GetBaseURI() != nullptr; }
 
  bool SetBaseFileName(VTK_FILEPATH const std::string& filepath);
 
  bool SetBaseDirectory(VTK_FILEPATH const std::string& dirpath);
 
  vtkSmartPointer<vtkURI> Resolve(const vtkURI* uri);
 
  vtkSmartPointer<vtkResourceStream> Load(const std::string& uri)
  {
    return this->Load(uri.data(), uri.size());
  }
 
  vtkSmartPointer<vtkResourceStream> Load(const char* uri, std::size_t size);
 
  vtkSmartPointer<vtkResourceStream> Load(const vtkURI* uri);
 
  vtkSmartPointer<vtkResourceStream> LoadResolved(const vtkURI* uri);
 
protected:
  vtkURILoader();
  ~vtkURILoader() override;
  vtkURILoader(const vtkURILoader&) = delete;
  vtkURILoader& operator=(const vtkURILoader&) = delete;
 
  virtual vtkSmartPointer<vtkResourceStream> DoLoad(const vtkURI& uri);
 
  vtkSmartPointer<vtkResourceStream> LoadFile(const vtkURI& uri);
 
  vtkSmartPointer<vtkResourceStream> LoadData(const vtkURI& uri);
 
private:
  std::unique_ptr<vtkInternals> Impl;
};
 
VTK_ABI_NAMESPACE_END
 
#endif