xoutbase.h

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/*=========================================================================
 *
 *  Copyright UMC Utrecht and contributors
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/
#ifndef xoutbase_h
#define xoutbase_h
 
#include <iostream>
#include <ostream>
#include <map>
#include <string>
 
namespace xoutlibrary
{
 
class xoutbase
{
public:
  using Self = xoutbase;
 
  using CStreamMapType = std::map<std::string, std::ostream *>;
  using XStreamMapType = std::map<std::string, Self *>;
  using CStreamMapEntryType = CStreamMapType::value_type;
  using XStreamMapEntryType = XStreamMapType::value_type;
 
  virtual ~xoutbase() = 0;
 
  Self & operator[](const char * cellname);
 
  template <class T>
  Self &
  operator<<(const T & _arg)
  {
    return this->SendToTargets(_arg);
  }
 
 
  Self &
  operator<<(std::ostream & (*pf)(std::ostream &))
  {
    return this->SendToTargets(pf);
  }
 
 
  Self &
  operator<<(std::ios & (*pf)(std::ios &))
  {
    return this->SendToTargets(pf);
  }
 
 
  Self &
  operator<<(std::ios_base & (*pf)(std::ios_base &))
  {
    return this->SendToTargets(pf);
  }
 
 
  virtual void
  WriteBufferedData();
 
  virtual int
  AddTargetCell(const char * name, std::ostream * cell);
 
  virtual int
  AddTargetCell(const char * name, Self * cell);
 
  virtual int
  RemoveTargetCell(const char * name);
 
  virtual int
  AddOutput(const char * name, std::ostream * output);
 
  virtual int
  AddOutput(const char * name, Self * output);
 
  virtual int
  RemoveOutput(const char * name);
 
  virtual void
  SetOutputs(const CStreamMapType & outputmap);
 
  virtual void
  SetOutputs(const XStreamMapType & outputmap);
 
  virtual const CStreamMapType &
  GetCOutputs();
 
  virtual const XStreamMapType &
  GetXOutputs();
 
protected:
  xoutbase() = default;
 
  void
  SetCTargetCells(const CStreamMapType & cellmap);
 
  virtual void
  SetXTargetCells(const XStreamMapType & cellmap);
 
  CStreamMapType m_COutputs;
  XStreamMapType m_XOutputs;
 
  CStreamMapType m_CTargetCells;
  XStreamMapType m_XTargetCells;
 
private:
  template <class T>
  Self &
  SendToTargets(const T & _arg)
  {
    for (const auto & cell : m_CTargetCells)
    {
      *(cell.second) << _arg;
    }
 
    for (const auto & cell : m_XTargetCells)
    {
      *(cell.second) << _arg;
    }
 
    return *this;
  } // end SendToTargets
};
 
} // end namespace xoutlibrary
 
#endif // end #ifndef xoutbase_h