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#ifndef IMAGE_TRANSPORT_EXCEPTION_H
#define IMAGE_TRANSPORT_EXCEPTION_H

#include <stdexcept>

namespace image_transport {

/**
 * \brief A base class for all image_transport exceptions inheriting from std::runtime_error.
 */
class Exception : public std::runtime_error
{
public:
  Exception(const std::string& message) : std::runtime_error(message) {}
};

/**
 * \brief An exception class thrown when image_transport is unable to load a requested transport.
 */
class TransportLoadException : public Exception
{
public:
  TransportLoadException(const std::string& transport, const std::string& message)
    : Exception("Unable to load plugin for transport '" + transport + "', error string:\n" + message),
      transport_(transport.c_str())
  {
  }

  std::string getTransport() const { return transport_; }

protected:
  const char* transport_;
};

} //namespace image_transport

#endif
