Task.h

/*
    IIP Generic Task Class

    Copyright (C) 2006-2019 Ruven Pillay

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software Foundation,
    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*/


#ifndef _TASK_H
#define _TASK_H


#include <string>

#include "IIPImage.h"
#include "IIPResponse.h"
#include "JPEGCompressor.h"
#include "View.h"
#include "TileManager.h"
#include "Timer.h"
#include "Writer.h"
#include "Cache.h"
#include "Watermark.h"
#include "Transforms.h"
#include "Logger.h"
#ifdef HAVE_PNG
#include "PNGCompressor.h"
#endif


// Define our http header cache max age (24 hours)
#define MAX_AGE 86400



#ifdef HAVE_EXT_POOL_ALLOCATOR
#include <ext/pool_allocator.h>
typedef HASHMAP < std::string, IIPImage,
                              __gnu_cxx::hash< const std::string >,
                              std::equal_to< const std::string >,
                              __gnu_cxx::__pool_alloc< std::pair<const std::string,IIPImage> >
                              > imageCacheMapType;
#else
typedef HASHMAP <std::string,IIPImage> imageCacheMapType;
#endif






struct Session {
  IIPImage **image;
  JPEGCompressor* jpeg;
#ifdef HAVE_PNG
  PNGCompressor* png;
#endif
  View* view;
  IIPResponse* response;
  Watermark* watermark;
  Transform* processor;
  int loglevel;
  Logger* logfile;
  std::map <const std::string, std::string> headers;
  std::map <const std::string, unsigned int> codecOptions;

  imageCacheMapType *imageCache;
  Cache* tileCache;

#ifdef DEBUG
  FileWriter* out;
#else
  FCGIWriter* out;
#endif

};




class Task {

 protected:

  Timer command_timer;

  Session* session;

  std::string argument;


 public:

  virtual ~Task() {;};

  virtual void run( Session* session, const std::string& argument ) {;};


  static Task* factory( const std::string& type );

  void checkImage();

};




class OBJ : public Task {

 public:

  void run( Session* session, const std::string& argument );

  void iip();
  void iip_server();
  void max_size();
  void resolution_number();
  void colorspace( std::string arg );
  void tile_size();
  void bits_per_channel();
  void horizontal_views();
  void vertical_views();
  void min_max_values();
  void resolutions();
  void metadata( std::string field );

};


class QLT : public Task {
 public:
  void run( Session* session, const std::string& argument );
};


class SDS : public Task {
 public:
  void run( Session* session, const std::string& argument );
};


class MINMAX : public Task {
 public:
  void run( Session* session, const std::string& argument );
};


class CNT : public Task {
 public:
  void run( Session* session, const std::string& argument );
};


class GAM : public Task {
 public:
  void run( Session* session, const std::string& argument );
};


class WID : public Task {
 public:
  void run( Session* session, const std::string& argument );
};


class HEI : public Task {
 public:
  void run( Session* session, const std::string& argument );
};


class RGN : public Task {
 public:
  void run( Session* session, const std::string& argument );
};


class ROT : public Task {
 public:
  void run( Session* session, const std::string& argument );
};


class FIF : public Task {
 public:
  void run( Session* session, const std::string& argument );
};


/*class PTL : public Task {
 public:
  void run( Session* session, const std::string& argument );
};*/


class JTL : public Task {
 public:
  void run( Session* session, const std::string& argument );


  void send( Session* session, int resolution, int tile );
};


class JTLS : public Task {
 public:
  void run( Session* session, const std::string& argument );
};


class TIL : public Task {
 public:
  void run( Session* session, const std::string& argument );
};


class CVT : public Task {
 public:
  void run( Session* session, const std::string& argument );


  void send( Session* session );
};


class ICC : public Task {
 public:
  void run( Session* session, const std::string& argument );
};


class SHD : public Task {
 public:
  void run( Session* session, const std::string& argument );
};


class CMP : public Task {
 public:
  void run( Session* session, const std::string& argument );
};


class INV : public Task {
 public:
  void run( Session* session, const std::string& argument );
};


class Zoomify : public Task {
 public:
  void run( Session* session, const std::string& argument );
};


class SPECTRA : public Task {
 public:
  void run( Session* session, const std::string& argument );
};


class PFL : public Task {
 public:
  void run( Session* session, const std::string& argument );
};


class LYR : public Task {
 public:
  void run( Session* session, const std::string& argument );
};


class DeepZoom : public Task {
 public:
  void run( Session* session, const std::string& argument );
};


class IIIF : public Task {
 public:
  void run( Session* session, const std::string& argument );
};


class CTW : public Task {
 public:
  void run( Session* session, const std::string& argument );
};


class COL : public Task {
 public:
  void run( Session* session, const std::string& argument );
};


#endif