CompositeResourceRetriever.hpp

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#ifndef DART_UTILS_COMPOSITERESOURCERETRIEVER_HPP_
#define DART_UTILS_COMPOSITERESOURCERETRIEVER_HPP_
 
#include <unordered_map>
#include <vector>
#include "dart/common/ClassWithVirtualBase.hpp"
#include "dart/common/ResourceRetriever.hpp"
 
namespace dart {
namespace utils {
 
DART_DECLARE_CLASS_WITH_VIRTUAL_BASE_BEGIN
class CompositeResourceRetriever : public virtual common::ResourceRetriever
{
public:
  virtual ~CompositeResourceRetriever() = default;
 
  void addDefaultRetriever(
      const common::ResourceRetrieverPtr& _resourceRetriever);
 
  bool addSchemaRetriever(
      const std::string& _schema,
      const common::ResourceRetrieverPtr& _resourceRetriever);
 
  // Documentation inherited.
  bool exists(const common::Uri& _uri) override;
 
  // Documentation inherited.
  common::ResourcePtr retrieve(const common::Uri& _uri) override;
 
  // Documentation inherited.
  std::string getFilePath(const common::Uri& uri) override;
 
private:
  std::vector<common::ResourceRetrieverPtr> getRetrievers(
      const common::Uri& _uri) const;
 
  std::unordered_map<std::string, std::vector<common::ResourceRetrieverPtr> >
      mResourceRetrievers;
  std::vector<common::ResourceRetrieverPtr> mDefaultResourceRetrievers;
};
DART_DECLARE_CLASS_WITH_VIRTUAL_BASE_END
 
using CompositeResourceRetrieverPtr
    = std::shared_ptr<CompositeResourceRetriever>;
 
} // namespace utils
} // namespace dart
 
#endif // ifndef DART_UTILS_COMPOSITERESOURCERETRIEVER_HPP_