/scr/tee1/isis/lib/Core/DataStorage/io_factory.hpp

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//
// C++ Interface: io_factory
//
// Description:
//
//
// Author: Enrico Reimer<reimer@cbs.mpg.de>, (C) 2009
//
// Copyright: See COPYING file that comes with this distribution
//
//



#ifndef IO_FACTORY_H
#define IO_FACTORY_H

#include <map>
#include <string>
#include <boost/shared_ptr.hpp>
#include <boost/regex.hpp>
#define BOOST_FILESYSTEM_VERSION 2 //@todo switch to 3 as soon as we drop support for boost < 1.44
#include <boost/filesystem.hpp>

#include "io_interface.h"
#include "../CoreUtils/progressfeedback.hpp"

//????
#include "chunk.hpp"
#include "image.hpp"

namespace isis
{
namespace data
{

class IOFactory
{
public:
    typedef boost::shared_ptr< image_io::FileFormat> FileFormatPtr;
    typedef std::list<FileFormatPtr> FileFormatList;
    friend class util::Singletons;

private:
    boost::shared_ptr<util::ProgressFeedback> m_feedback;
public:
    static std::list<data::Image> load( const util::slist &paths, util::istring suffix_override = "", util::istring dialect = "" );
    static std::list<data::Image> load( const std::string &path, util::istring suffix_override = "", util::istring dialect = "" );
    static size_t load( std::list<data::Chunk> &chunks, const std::string &path, util::istring suffix_override = "", util::istring dialect = "" );

    static bool write( const data::Image &image, const std::string &path, util::istring suffix_override = "", util::istring dialect = "" );
    static bool write( std::list<data::Image> images, const std::string &path, util::istring suffix_override = "", util::istring dialect = "" );

    static FileFormatList getFormats();

    static void setProgressFeedback( boost::shared_ptr<util::ProgressFeedback> feedback );

    static FileFormatList getFileFormatList( std::string filename, util::istring suffix_override = "", util::istring dialect = "" );
    static std::list<data::Image> chunkListToImageList( std::list<Chunk> &chunks );
protected:
    size_t loadFile( std::list<Chunk> &ret, const boost::filesystem::path &filename, util::istring suffix_override = "", util::istring dialect = "" );
    size_t loadPath( std::list<Chunk> &ret, const boost::filesystem::path &path, util::istring suffix_override = "", util::istring dialect = "" );

    static IOFactory &get();
    IOFactory();//shall not be created directly
    FileFormatList io_formats;

    /*
     * each ImageFormat will be registered in a map after plugin has been loaded
     * @param plugin pointer to the plugin to register
     *
     * @return true if registration was successful, false otherwise
     * */
    bool registerFileFormat( const FileFormatPtr plugin );
    unsigned int findPlugins( const std::string &path );
private:
    std::map<util::istring, FileFormatList> io_suffix;
    IOFactory &operator =( IOFactory & ); //dont do that
};

}
}

#endif //IO_FACTORY_H