BaseVisitor.hpp

/*
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 * reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 * 2. 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.
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 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 * POSSIBILITY OF SUCH DAMAGE.
 *
 * SUPPORT OPEN SCIENCE!  If you use OpenMD or its source code in your
 * research, please cite the appropriate papers when you publish your
 * work.  Good starting points are:
 *
 * [1] Meineke, et al., J. Comp. Chem. 26, 252-271 (2005).
 * [2] Fennell & Gezelter, J. Chem. Phys. 124, 234104 (2006).
 * [3] Sun, Lin & Gezelter, J. Chem. Phys. 128, 234107 (2008).
 * [4] Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011).
 * [5] Kuang & Gezelter, Mol. Phys., 110, 691-701 (2012).
 * [6] Lamichhane, Gezelter & Newman, J. Chem. Phys. 141, 134109 (2014).
 * [7] Lamichhane, Newman & Gezelter, J. Chem. Phys. 141, 134110 (2014).
 * [8] Bhattarai, Newman & Gezelter, Phys. Rev. B 99, 094106 (2019).
 */
 
#ifndef VISITORS_BASEVISITOR_HPP
#define VISITORS_BASEVISITOR_HPP
 
#include <cstdio>
#include <iostream>
#include <string>
 
namespace OpenMD {
 
  class Atom;
  class DirectionalAtom;
  class RigidBody;
  class Bond;
  class Bend;
  class Torsion;
  class Inversion;
  class SimInfo;
 
  class BaseVisitor {
  public:
    virtual ~BaseVisitor() {}
    virtual void visit(Atom*) {}
    virtual void visit(DirectionalAtom*) {}
    virtual void visit(RigidBody*) {}
    virtual void visit(Bond*) {}
    virtual void visit(Bend*) {}
    virtual void visit(Torsion*) {}
    virtual void visit(Inversion*) {}
 
    virtual void update() {}
 
    const std::string& getVisitorName() { return visitorName; }
    virtual const std::string toString() {
      std::string result;
      char buffer[65535];
 
      snprintf(buffer, 65535,
               "--------------------------------------------------------"
               "----------\n");
      result += buffer;
 
      snprintf(buffer, 65535, "Visitor name: %s\n", visitorName.c_str());
      result += buffer;
 
      snprintf(buffer, 65535,
               "--------------------------------------------------------"
               "----------\n");
      result += buffer;
 
      return result;
    }
 
  protected:
    BaseVisitor() {}
 
    std::string visitorName;
  };
}  // namespace OpenMD
 
#endif