CompositeResourceRetriever.hpp

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#ifndef DART_UTILS_COMPOSITERESOURCERETRIEVER_HPP_
#define DART_UTILS_COMPOSITERESOURCERETRIEVER_HPP_
 
#include <unordered_map>
#include <vector>
#include "dart/common/ResourceRetriever.hpp"
 
namespace dart {
namespace utils {
 
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;
};
 
using CompositeResourceRetrieverPtr
  = std::shared_ptr<CompositeResourceRetriever>;
 
} // namespace utils
} // namespace dart
 
#endif // ifndef DART_UTILS_COMPOSITERESOURCERETRIEVER_HPP_