QCA::Logger

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#include <QtCrypto>

Inheritance diagram for QCA::Logger:

Public Types

enum  Severity {
  Quiet = 0 , Emergency = 1 , Alert = 2 , Critical = 3 ,
  Error = 4 , Warning = 5 , Notice = 6 , Information = 7 ,
  Debug = 8
}
 
- Public Types inherited from QObject
typedef  QObjectList
 

Public Member Functions

QStringList currentLogDevices () const
 
Severity level () const
 
void logBinaryMessage (const QByteArray &blob, Severity=Information)
 
void logTextMessage (const QString &message, Severity=Information)
 
void registerLogDevice (AbstractLogDevice *logger)
 
void setLevel (Severity level)
 
void unregisterLogDevice (const QString &loggerName)
 
- Public Member Functions inherited from QObject
 QObject (QObject *parent)
 
QBindable< QStringbindableObjectName ()
 
bool blockSignals (bool block)
 
const QObjectListchildren () 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 () const const
 
void dumpObjectTree () const const
 
QList< QByteArraydynamicPropertyNames () const const
 
virtual bool event (QEvent *e)
 
virtual bool eventFilter (QObject *watched, QEvent *event)
 
findChild (const QString &name, 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
 
QList< T > findChildren (Qt::FindChildOptions options) const const
 
bool inherits (const char *className) const const
 
void installEventFilter (QObject *filterObj)
 
bool isQuickItemType () const const
 
bool isWidgetType () const const
 
bool isWindowType () const const
 
void killTimer (int id)
 
virtual const QMetaObjectmetaObject () const const
 
void moveToThread (QThread *targetThread)
 
QString objectName () const const
 
void objectNameChanged (const QString &objectName)
 
QObjectparent () const const
 
QVariant property (const char *name) const const
 
 Q_CLASSINFO (Name, Value)
 
 Q_EMIT Q_EMIT
 
 Q_ENUM (...)
 
 Q_ENUM_NS (...)
 
 Q_ENUMS (...)
 
 Q_FLAG (...)
 
 Q_FLAG_NS (...)
 
 Q_FLAGS (...)
 
 Q_GADGET Q_GADGET
 
 Q_GADGET_EXPORT (EXPORT_MACRO)
 
 Q_INTERFACES (...)
 
 Q_INVOKABLE Q_INVOKABLE
 
 Q_MOC_INCLUDE Q_MOC_INCLUDE
 
 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
 
qobject_cast (const QObject *object)
 
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 setObjectName (QAnyStringView name)
 
void setParent (QObject *parent)
 
bool setProperty (const char *name, const QVariant &value)
 
bool setProperty (const char *name, QVariant &&value)
 
bool signalsBlocked () const const
 
int startTimer (int interval, Qt::TimerType timerType)
 
int startTimer (std::chrono::milliseconds interval, Qt::TimerType timerType)
 
QThreadthread () const const
 

Additional Inherited Members

- Properties inherited from QObject
 objectName
 
- 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)
 
- 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
 
QObjectsender () const const
 
int senderSignalIndex () const const
 
virtual void timerEvent (QTimerEvent *event)
 

Detailed Description

A simple logging system.

This class provides a simple but flexible approach to logging information that may be used for debugging or system operation diagnostics.

There is a single Logger for each application that uses QCA. You do not need to create this Logger yourself - QCA automatically creates it on startup. You can get access to the Logger using the global QCA::logger() method.

By default the Logger just accepts all messages (binary and text). If you want to get access to those messages, you need to subclass AbstractLogDevice, and register your subclass (using registerLogDevice()). You can then take whatever action is appropriate (e.g. show to the user using the GUI, log to a file or send to standard error).

Definition at line 962 of file qca_support.h.

Member Enumeration Documentation

◆ Severity

The severity of the message.

This information may be used by the log device to determine what the appropriate action is.

Enumerator
Quiet 

Quiet: turn of logging.

Emergency 

Emergency: system is unusable.

Alert 

Alert: action must be taken immediately.

Critical 

Critical: critical conditions.

Error 

Error: error conditions.

Warning 

Warning: warning conditions.

Notice 

Notice: normal but significant condition.

Information 

Informational: informational messages.

Debug 

Debug: debug-level messages.

Definition at line 972 of file qca_support.h.

Member Function Documentation

◆ currentLogDevices()

QStringList QCA::Logger::currentLogDevices ( ) const

Get a list of the names of all registered log devices.

◆ level()

Severity QCA::Logger::level ( ) const
inline

Get the current logging level.

Returns
Current level

Definition at line 990 of file qca_support.h.

◆ logBinaryMessage()

void QCA::Logger::logBinaryMessage ( const QByteArray & blob,
Severity = Information )

Log a binary blob to all available log devices.

Parameters
blobthe information to log
Note
how this is handled is quite logger specific. For example, it might be logged as a binary, or it might be encoded in some way

◆ logTextMessage()

void QCA::Logger::logTextMessage ( const QString & message,
Severity = Information )

Log a message to all available log devices.

Parameters
messagethe text to log

◆ registerLogDevice()

void QCA::Logger::registerLogDevice ( AbstractLogDevice * logger)

Add an AbstractLogDevice subclass to the existing list of loggers.

Parameters
loggerthe LogDevice to add

◆ setLevel()

void QCA::Logger::setLevel ( Severity level)

Set the current logging level.

Parameters
levelnew logging level

Only severities less or equal than the log level one will be logged

◆ unregisterLogDevice()

void QCA::Logger::unregisterLogDevice ( const QString & loggerName)

Remove an AbstractLogDevice subclass from the existing list of loggers.

Parameters
loggerNamethe name of the LogDevice to remove
Note
If there are several log devices with the same name, all will be removed.

The documentation for this class was generated from the following file:
This file is part of the KDE documentation.
Documentation copyright © 1996-2024 The KDE developers.
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