Abstract interface for external storage - to be implemented by various backends and registered in QgsExternalStorageRegistry. More...

#include <qgsexternalstorage.h>

Public Member Functions
virtual	~QgsExternalStorage ()=default
virtual QString	displayName () const =0
	Returns the translated external storage name, which should be used for any user-visible display of the external storage name.
QgsExternalStorageFetchedContent *	fetch (const QString &url, const QString &authCfg=QString(), Qgis::ActionStart fetchingMode=Qgis::ActionStart::Deferred) const
	Fetches file from url for this project external storage.
QgsExternalStorageStoredContent *	store (const QString &filePath, const QString &url, const QString &authCfg=QString(), Qgis::ActionStart storingMode=Qgis::ActionStart::Deferred) const
	Stores file filePath to the url for this project external storage.
virtual QString	type () const =0
	Unique identifier of the external storage type.

Protected Member Functions
virtual QgsExternalStorageFetchedContent *	doFetch (const QString &url, const QString &authCfg=QString()) const =0
	Fetches file from url using authCfg for this project external storage.
virtual QgsExternalStorageStoredContent *	doStore (const QString &filePath, const QString &url, const QString &authCfg=QString()) const =0
	Stores file filePath to the url using authCfg authentication for this project external storage.

Detailed Description

Abstract interface for external storage - to be implemented by various backends and registered in QgsExternalStorageRegistry.

Since: QGIS 3.22

Definition at line 36 of file qgsexternalstorage.h.

Constructor & Destructor Documentation

◆ ~QgsExternalStorage()

virtual QgsExternalStorage::~QgsExternalStorage ( )

virtualdefault

Member Function Documentation

◆ displayName()

virtual QString QgsExternalStorage::displayName ( ) const

pure virtual

Returns the translated external storage name, which should be used for any user-visible display of the external storage name.

◆ doFetch()

virtual QgsExternalStorageFetchedContent * QgsExternalStorage::doFetch	(	const QString &	url,
		const QString &	authCfg = QString() ) const

protectedpure virtual

Fetches file from url using authCfg for this project external storage.

See also: QgsExternalStorage::fetch()

◆ doStore()

virtual QgsExternalStorageStoredContent * QgsExternalStorage::doStore	(	const QString &	filePath,
		const QString &	url,
		const QString &	authCfg = QString() ) const

protectedpure virtual

Stores file filePath to the url using authCfg authentication for this project external storage.

See also: QgsExternalStorage::store()

◆ fetch()

QgsExternalStorageFetchedContent * QgsExternalStorage::fetch	(	const QString &	url,
		const QString &	authCfg = QString(),
		Qgis::ActionStart	fetchingMode = Qgis::ActionStart::Deferred ) const

Fetches file from url for this project external storage.

Fetching process is run in background. Returns a QgsExternalStorageFetchedContent to follow the status of the fetched resource.

fetchingMode defines if the download will start immediately or shall be manually triggered calling QgsExternalStorageFetchedContent::fetch(). User should use Qgis::ActionStart::Deferred if he needs to connect the fetched() signal.

After using this method, user should wait for QgsExternalStorageStoredContent::fetched(), QgsExternalStorageStoredContent::errorOccurred() or QgsExternalStorageStoredContent::canceled() signals.

It's possible to give authCfg authentication configuration id in case its needed.

Definition at line 51 of file qgsexternalstorage.cpp.

◆ store()

QgsExternalStorageStoredContent * QgsExternalStorage::store	(	const QString &	filePath,
		const QString &	url,
		const QString &	authCfg = QString(),
		Qgis::ActionStart	storingMode = Qgis::ActionStart::Deferred ) const

Stores file filePath to the url for this project external storage.

Storing process is run in background. Returns a QgsExternalStorageStoredContent to follow the status of the stored resource.

storingMode defines if the download will start immediately or shall be manually triggered calling QgsExternalStorageStoredContent::store(). User should use Qgis::ActionStart::Deferred if he needs to connect the stored() signal.

After using this method, user wait for QgsExternalStorageStoredContent::stored(), QgsExternalStorageStoredContent::errorOccurred() or QgsExternalStorageStoredContent::canceled() signals.

It's possible to give authCfg authentication configuration id in case its needed.

Caller takes ownership of the returned symbol.

Definition at line 42 of file qgsexternalstorage.cpp.

◆ type()

virtual QString QgsExternalStorage::type ( ) const