KFileMetaData::ExtractorPlugin Class Reference

#include <KFileMetaData/ExtractorPlugin>

Inheritance diagram for KFileMetaData::ExtractorPlugin:

Public Member Functions
	ExtractorPlugin (QObject *parent)
virtual void	extract (ExtractionResult *result)=0
virtual QStringList	mimetypes () const =0
Public Member Functions inherited from QObject
	QObject (QObject *parent)
bool	blockSignals (bool block)
const QObjectList &	children () const const
QMetaObject::Connection	connect (const QObject *sender, const char *signal, const char *method, Qt::ConnectionType type) const const
void	deleteLater ()
void	destroyed (QObject *obj)
bool	disconnect (const char *signal, const QObject *receiver, const char *method) const const
bool	disconnect (const QObject *receiver, const char *method) const const
void	dumpObjectInfo ()
void	dumpObjectInfo () const const
void	dumpObjectTree ()
void	dumpObjectTree () const const
QList< QByteArray >	dynamicPropertyNames () const const
virtual bool	event (QEvent *e)
virtual bool	eventFilter (QObject *watched, QEvent *event)
T	findChild (const QString &name, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QRegExp &regExp, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QRegularExpression &re, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QString &name, Qt::FindChildOptions options) const const
bool	inherits (const char *className) const const
void	installEventFilter (QObject *filterObj)
bool	isWidgetType () const const
bool	isWindowType () const const
void	killTimer (int id)
virtual const QMetaObject *	metaObject () const const
void	moveToThread (QThread *targetThread)
QString	objectName () const const
void	objectNameChanged (const QString &objectName)
QObject *	parent () const const
QVariant	property (const char *name) const const
	Q_CLASSINFO (Name, Value)
	Q_DISABLE_COPY (Class)
	Q_DISABLE_COPY_MOVE (Class)
	Q_DISABLE_MOVE (Class)
	Q_EMIT Q_EMIT
	Q_ENUM (...)
	Q_ENUM_NS (...)
	Q_ENUMS (...)
	Q_FLAG (...)
	Q_FLAG_NS (...)
	Q_FLAGS (...)
	Q_GADGET Q_GADGET
	Q_INTERFACES (...)
	Q_INVOKABLE Q_INVOKABLE
	Q_NAMESPACE Q_NAMESPACE
	Q_NAMESPACE_EXPORT (EXPORT_MACRO)
	Q_OBJECT Q_OBJECT
	Q_PROPERTY (...)
	Q_REVISION Q_REVISION
	Q_SET_OBJECT_NAME (Object)
	Q_SIGNAL Q_SIGNAL
	Q_SIGNALS Q_SIGNALS
	Q_SLOT Q_SLOT
	Q_SLOTS Q_SLOTS
T	qFindChild (const QObject *obj, const QString &name)
QList< T >	qFindChildren (const QObject *obj, const QRegExp &regExp)
QList< T >	qFindChildren (const QObject *obj, const QString &name)
T	qobject_cast (const QObject *object)
T	qobject_cast (QObject *object)
	QT_NO_NARROWING_CONVERSIONS_IN_CONNECT QT_NO_NARROWING_CONVERSIONS_IN_CONNECT
void	removeEventFilter (QObject *obj)
void	setObjectName (const QString &name)
void	setParent (QObject *parent)
bool	setProperty (const char *name, const QVariant &value)
bool	signalsBlocked () const const
int	startTimer (int interval, Qt::TimerType timerType)
int	startTimer (std::chrono::milliseconds time, Qt::TimerType timerType)
QThread *	thread () const const

Static Public Member Functions
static QStringList	contactsFromString (const QString &string)
static QDateTime	dateTimeFromString (const QString &dateString)
Static Public Member Functions inherited from QObject
QMetaObject::Connection	connect (const QObject *sender, const char *signal, const QObject *receiver, const char *method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, const QObject *context, Functor functor, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, Functor functor)
bool	disconnect (const QMetaObject::Connection &connection)
bool	disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *method)
bool	disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method)
bool	disconnect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method)
QString	tr (const char *sourceText, const char *disambiguation, int n)
QString	trUtf8 (const char *sourceText, const char *disambiguation, int n)

Protected Member Functions
QString	getSupportedMimeType (const QString &mimetype) const
Protected Member Functions inherited from QObject
virtual void	childEvent (QChildEvent *event)
virtual void	connectNotify (const QMetaMethod &signal)
virtual void	customEvent (QEvent *event)
virtual void	disconnectNotify (const QMetaMethod &signal)
bool	isSignalConnected (const QMetaMethod &signal) const const
int	receivers (const char *signal) const const
QObject *	sender () const const
int	senderSignalIndex () const const
virtual void	timerEvent (QTimerEvent *event)

Additional Inherited Members
Properties inherited from QObject
	objectName
Public Attributes inherited from QObject
typedef	QObjectList

Detailed Description

The ExtractorPlugin is the base class for all file metadata extractors. It is responsible for extracting the metadata in a file.

Plugins should derive from this class and implement the mimetypes and extract method.

All Plugins should be synchronous and blocking.

Author

Vishesh Handa me@vh.nosp@m.anda.nosp@m..in

Definition at line 33 of file extractorplugin.h.

Member Function Documentation

contactsFromString()

QStringList ExtractorPlugin::contactsFromString ( const QString &  string )

static

Tries to split the string into names.

It cleans up any superfluous words and removes extra junk such as curly braces

Definition at line 103 of file extractorplugin.cpp.

dateTimeFromString()

QDateTime ExtractorPlugin::dateTimeFromString ( const QString &  dateString )

static

Tries to extract a valid date time from the string provided.

Definition at line 28 of file extractorplugin.cpp.

extract()

virtual void KFileMetaData::ExtractorPlugin::extract ( ExtractionResult *  result )

pure virtual

The main function of the plugin that is responsible for extracting the data and filling up the ExtractionResult.

The result provides the input url and mimetype which can be used to identify the file.

This function is synchronous and should be reentrant as it can be called by multiple threads.

getSupportedMimeType()

QString ExtractorPlugin::getSupportedMimeType ( const QString &  mimetype ) const

protected

Return the inherited mimetype which the extractor directly supports.

The returned type is one of the types from mimetypes(), and is one of the ancestors of the input mimetype (including mimetype itself).

In case the mimetype is not a subtype of the supported types, an empty QString() is returned.

See also

ExtractorCollection::fetchExtractors

QMimeType::allAncestors

Since

5.57

Definition at line 135 of file extractorplugin.cpp.

mimetypes()

virtual QStringList KFileMetaData::ExtractorPlugin::mimetypes ( ) const

pure virtual

Provide a list of mimetypes which are supported by this plugin.

Only files with those mimetypes will be provided to the plugin via the extract function.

This can also contains partial mimetypes like "text/", in that case this plugin will be chosen only if a better plugin does not exist.

Returns

A StringList containing the mimetypes.

See also

extract

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The documentation for this class was generated from the following files:

• extractorplugin.h
• extractorplugin.cpp