text: /**
   * Software License Agreement (BSD License)
   *
   * Copyright (c) 2015, C. Dario Bellicoso, Christian Gehring, Ralf Kaestner
   * 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 Autonomous Systems Lab nor ETH Zurich
   *     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.
   */
  /*
   * ParameterHandlerBase.hpp
   *
   *  Created on: Sep 23, 2015
   *      Author: Christian Gehring
   */
  
  #pragma once
  
  #include <parameter_handler/ParameterInterface.hpp>
  #include <parameter_handler/ParameterObserverInterface.hpp>
  #include <string>
  
  namespace parameter_handler {
  
  class ParameterHandlerBase : public ParameterObserverInterface {
   public:
    ParameterHandlerBase() = default;
    ~ParameterHandlerBase() override = default;
  
    virtual bool cleanup() { return true; }
  
    bool addParam(const std::string& name, ParameterInterface& param) { return addParam(name, param, false); }
  
    virtual bool addParam(const std::string& /*name*/, ParameterInterface& /*param*/, bool /*verbose*/) { return false; }
  
    bool addParam(ParameterInterface& param) { return addParam(param, false); }
  
    virtual bool addParam(ParameterInterface& /*param*/, bool /*verbose*/) { return false; }
  
    virtual bool getParam(const std::string& /*name*/, ParameterInterface& /*param*/) { return false; }
  
    virtual bool removeParam(const std::string& /*name*/) { return false; };
  
    virtual bool removeParam(const ParameterInterface& param) { return removeParam(param.getName()); };
  
    bool storeParams(const std::string& filename) const { return storeParams(filename, false); }
  
    virtual bool storeParams(const std::string& /*filename*/, bool /*append*/) const { return false; }
  
    virtual bool loadParams(const std::string& /*filename*/) { return false; }
  
    void parameterChanged(const ParameterInterface& /*param*/) override {}
  };
  
  } /* namespace parameter_handler */
  