AbstractStreamHandler Class Reference

#include <AbstractStreamHandler.h>

Detailed Description

Used to interprete website data as streams. Some methods have to be overridden, to map their functions to their specific database functions. The track list is held in a map, which is accessible through its station name. It can be accessed via the get_tracks() method.

Signals
void	sig_error ()
void	sig_data_available ()

Public Member Functions
	AbstractStreamHandler (QObject *parent=nullptr)
bool	parse_station (const QString &url, const QString &station_name)
	Retrieves data from the station and tries to interprete it via the parse_content() method. More...
MetaDataList	get_tracks (const QString &station_name)
	get_tracks More...
void	save (const QString &station_name, const QString &url)
	Saves the station. Calls the add_stream() method. More...
virtual bool	get_all_streams (StreamMap &streams)=0
	This method should return all stations in database. More...
virtual bool	add_stream (const QString &station_name, const QString &url)=0
	This method should add a new station to database. If the station already exists, there should be a corresponding error handling. More...
virtual bool	delete_stream (const QString &station_name)=0
	Delete a station from the database. More...
virtual bool	update_url (const QString &station_name, const QString &url)=0
	Update the url of a station. More...
virtual bool	rename_stream (const QString &station_name, const QString &url)=0
	Rename the station. More...
void	clear ()
	Clears all station content.

Protected Attributes
DatabaseConnector *	_db =nullptr
PlaylistHandler *	_playlist =nullptr
QMap< QString, MetaDataList >	_station_contents
QString	_station_name
bool	_blocked

Member Function Documentation

add_stream()

virtual bool AbstractStreamHandler::add_stream ( const QString &  station_name, const QString &  url  )

pure virtual

This method should add a new station to database. If the station already exists, there should be a corresponding error handling.

Parameters

station_name	station name
url	url

Returns

true if successful, false else

Implemented in StreamHandlerPodcasts, and StreamHandlerStreams.

delete_stream()

virtual bool AbstractStreamHandler::delete_stream ( const QString &  station_name )

pure virtual

Delete a station from the database.

Parameters

station_name

the station to be deleted

Returns

true if successful, false else

Implemented in StreamHandlerPodcasts, and StreamHandlerStreams.

get_all_streams()

virtual bool AbstractStreamHandler::get_all_streams ( StreamMap &  streams )

pure virtual

This method should return all stations in database.

Parameters

streams

target StreamMap

Returns

true if successful, false else

Implemented in StreamHandlerPodcasts, and StreamHandlerStreams.

get_tracks()

MetaDataList AbstractStreamHandler::get_tracks

(

const QString &

station_name

)

get_tracks

Parameters

station_name

Returns

parse_station()

bool AbstractStreamHandler::parse_station	(	const QString &	url,
		const QString &	station_name
	)

Retrieves data from the station and tries to interprete it via the parse_content() method.

Parameters

url	url to retrieve the data from
station_name	the station name

Returns

true, if no other station is parsed atm, false else

rename_stream()

virtual bool AbstractStreamHandler::rename_stream ( const QString &  station_name, const QString &  url  )

pure virtual

Rename the station.

Parameters

station_name	new name of the station
url	old URL of the station

Returns

true if successful, false else

Implemented in StreamHandlerPodcasts, and StreamHandlerStreams.

save()

void AbstractStreamHandler::save	(	const QString &	station_name,
		const QString &	url
	)

Saves the station. Calls the add_stream() method.

Parameters

station_name	The station name.
url	the station url.

update_url()

virtual bool AbstractStreamHandler::update_url ( const QString &  station_name, const QString &  url  )

pure virtual

Update the url of a station.

Parameters

station_name	the station to be updated
url	the new url

Returns

true if successful, false else

Implemented in StreamHandlerPodcasts, and StreamHandlerStreams.

Inheritance diagram for AbstractStreamHandler: