// Copyright 2012, Willow Garage, Inc. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
//    * Redistributions of source code must retain the above copyright
//      notice, this list of conditions and the following disclaimer.
//
//    * Redistributions in binary form must reproduce the above copyright
//      notice, this list of conditions and the following disclaimer in the
//      documentation and/or other materials provided with the distribution.
//
//    * Neither the name of the Willow Garage nor the names of its
//      contributors may be used to endorse or promote products derived from
//      this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.

#ifndef PLUGINLIB__EXCEPTIONS_HPP_
#define PLUGINLIB__EXCEPTIONS_HPP_

#include <stdexcept>
#include <string>

namespace pluginlib
{

/// A base class for all pluginlib exceptions that inherits from std::runtime_exception.
/**
 * \class PluginlibException
 */
class PluginlibException : public std::runtime_error
{
public:
  explicit PluginlibException(const std::string & error_desc)
  : std::runtime_error(error_desc) {}
};

/// Thrown when pluginlib is unable to load a plugin XML file.
/**
 * \class InvalidXMLException
 */
class InvalidXMLException : public PluginlibException
{
public:
  explicit InvalidXMLException(const std::string & error_desc)
  : PluginlibException(error_desc) {}
};

/// Thrown when pluginlib is unable to load the library associated with a given plugin.
/**
 * \class LibraryLoadException
 */
class LibraryLoadException : public PluginlibException
{
public:
  explicit LibraryLoadException(const std::string & error_desc)
  : PluginlibException(error_desc) {}
};

/// Thrown when pluginlib is unable to instantiate a class loader.
/**
 * \class ClassLoaderException
 */
class ClassLoaderException : public PluginlibException
{
public:
  explicit ClassLoaderException(const std::string & error_desc)
  : PluginlibException(error_desc) {}
};

/// Thrown when pluginlib is unable to unload the library associated with a given plugin.
/**
 * \class LibraryUnloadException
 */
class LibraryUnloadException : public PluginlibException
{
public:
  explicit LibraryUnloadException(const std::string & error_desc)
  : PluginlibException(error_desc) {}
};

/// Thrown when pluginlib is unable to create the class associated with a given plugin.
/**
 * \class CreateClassException
 */
class CreateClassException : public PluginlibException
{
public:
  explicit CreateClassException(const std::string & error_desc)
  : PluginlibException(error_desc) {}
};

}  // namespace pluginlib

#endif  // PLUGINLIB__EXCEPTIONS_HPP_
