exceptions.h

/*
 *  ______                   __  __              __
 * /\  _  \           __    /\ \/\ \            /\ \__
 * \ \ \L\ \  __  __ /\_\   \_\ \ \ \____    ___\ \ ,_\   ____
 *  \ \  __ \/\ \/\ \\/\ \  /'_` \ \ '__`\  / __`\ \ \/  /',__\
 *   \ \ \/\ \ \ \_/ |\ \ \/\ \L\ \ \ \L\ \/\ \L\ \ \ \_/\__, `\
 *    \ \_\ \_\ \___/  \ \_\ \___,_\ \_,__/\ \____/\ \__\/\____/
 *     \/_/\/_/\/__/    \/_/\/__,_ /\/___/  \/___/  \/__/\/___/
 * @copyright Copyright 2017 Avidbots Corp.
 * @name   world.h
 * @brief  Defines flatland Layer
 * @author Chunshang Li
 *
 * Software License Agreement (BSD License)
 *
 *  Copyright (c) 2017, Avidbots Corp.
 *  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 Avidbots Corp. 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 OWNER 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 FLATLAND_SERVER_EXCEPTIONS_H
#define FLATLAND_SERVER_EXCEPTIONS_H

#include <yaml-cpp/yaml.h>
#include <boost/filesystem.hpp>
#include <exception>
#include <string>

namespace flatland_server {

class Exception : public std::runtime_error {
 public:
  Exception(const std::string &msg) : runtime_error(msg) {}
};

class PluginException : public Exception {
 public:
  PluginException(const std::string &msg) : Exception(ErrorMsg(msg)) {}

 private:
  static const std::string ErrorMsg(const std::string &msg) {
    std::stringstream output;
    output << "Flatland plugin: ";
    output << msg;
    return output.str();
  }
};

class YAMLException : public Exception {
 public:
  YAMLException(const std::string &msg,
                const YAML::Exception &yaml_cpp_exception)
      : Exception(
            ErrorMsg(msg, yaml_cpp_exception.msg, yaml_cpp_exception.mark)) {}

  YAMLException(const std::string &msg) : Exception("Flatland YAML: " + msg) {}

 private:
  static const std::string ErrorMsg(const std::string &msg,
                                    const std::string &yaml_cpp_msg,
                                    const YAML::Mark &yaml_cpp_mark) {
    std::stringstream output;

    output << "Flatland YAML: ";
    output << msg;
    if (!(yaml_cpp_mark.pos == -1 && yaml_cpp_mark.line == -1 &&
          yaml_cpp_mark.column == -1)) {
      output << ", line " << yaml_cpp_mark.line + 1 << " col "
             << yaml_cpp_mark.column + 1;
    }

    if (yaml_cpp_msg.size() > 0) {
      output << ", " << yaml_cpp_msg;
    }

    return output.str();
  }
};
};  // namespace flatland_server

#endif  // FLATLAND_SERVER_WORLD_H