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/* -*- C++ -*- */
// ============================================================================
// $Id$
//
//
// = FILENAME
// Video_Repository.h
//
// = DESCRIPTION
// As a trading service dynamic property, creates a sequence of
// structures, each structure describing a movie in the video
// repository.
//
// = AUTHORS
// Seth Widoff <sbw1@cs.wustl.edu>
//
// ============================================================================
#if (! defined TAO_VIDEO_REPOSITORY_H)
#define TAO_VIDEO_REPOSITORY_H
#include "orbsvcs/Trader/Dynamic_Property.h"
#include "ace/OS.h"
#include "Video_RepositoryC.h"
#include "Property_Exporter.h"
class TAO_Video_Repository :
public TAO_DP_Evaluation_Handler,
public TAO_Exportable
// = DESCRIPTION
// When evalDP is invoked by the Dynamic Property Dispatcher, the
// TAO_Video_Repository parses the database file and creates a Movie
// Sequence, each structure of which describes a movie in the
// database. The evalDP then crams the sequence into a dynamically
// allocated Any, which it returns to the dispatcher.
//
// The format of the database file is the following:
//
// <file name>%<Movie Name>%<URL for description>
{
public:
static const char* MOVIE_NAMES;
static const char* MOVIE_INFO;
TAO_Video_Repository (const char* filename);
// TAO_Video_Repository requires the pathname of the video
// repository database.
~TAO_Video_Repository (void);
virtual CORBA::Any* evalDP (const CORBA::Any& extra_info,
CORBA::TypeCode_ptr returned_type,
CORBA::Environment& _env)
TAO_THROW_SPEC ((CosTradingDynamic::DPEvalFailure));
virtual void export_dynamic_properties (TAO_Property_Exporter& prop_exporter,
TAO_DP_Dispatcher& dp_dispatcher) const;
virtual int define_properties
(CosTradingRepos::ServiceTypeRepository::PropStructSeq& prop_seq,
CORBA::ULong offet = 0) const;
private:
void parse_file (const char* database, int num_lines);
static void obtain_movie_info (const char* file_name,
TAO_VR::Movie& movie) {}
// Extract the techincal information from the actual MPEG file.
TAO_Video_Repository (void) {}
TAO_Video_Repository& operator= (const TAO_Video_Repository& rep)
{ return *this; }
// TAO_Video_Repository requires the path of the video repository
// database.
const char* filename_;
char** movie_names_;
TAO_VR::Movie* movie_info_;
int num_movies_;
time_t lastchanged_;
};
#endif /* TAO_VIDEO_REPOSITORY_H */
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