DCMTK
Version 3.6.5
OFFIS DICOM Toolkit
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Appends log events to a file. More...
Public Member Functions | |
virtual STD_NAMESPACE locale | imbue (STD_NAMESPACE locale const &loc) |
Redefine default locale for output stream. More... | |
virtual STD_NAMESPACE locale | getloc () const |
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void | doAppend (const log4cplus::spi::InternalLoggingEvent &event) |
This method performs threshold checks and invokes filters before delegating actual logging to the subclasses specific {} method. | |
virtual log4cplus::tstring | getName () |
Get the name of this appender. More... | |
virtual void | setName (const log4cplus::tstring &name) |
Set the name of this appender. More... | |
virtual void | setErrorHandler (OFunique_ptr< ErrorHandler > eh) |
Set the ErrorHandler for this Appender. | |
virtual ErrorHandler * | getErrorHandler () |
Return the currently set ErrorHandler for this Appender. | |
virtual void | setLayout (OFunique_ptr< Layout > layout) |
Set the layout for this appender. More... | |
virtual Layout * | getLayout () |
Returns the layout of this appender. More... | |
void | setFilter (log4cplus::spi::FilterPtr f) |
Set the filter chain on this Appender. | |
log4cplus::spi::FilterPtr | getFilter () const |
Get the filter chain on this Appender. | |
LogLevel | getThreshold () const |
Returns this appenders threshold LogLevel. More... | |
void | setThreshold (LogLevel th) |
Set the threshold LogLevel. More... | |
bool | isAsSevereAsThreshold (LogLevel ll) const |
Check whether the message LogLevel is below the appender's threshold. More... | |
Protected Attributes | |
bool | immediateFlush |
Immediate flush means that the underlying writer or output stream will be flushed at the end of each append operation. More... | |
int | reopenDelay |
When any append operation fails, reopenDelay says for how many seconds the next attempt to re-open the log file and resume logging will be delayed. More... | |
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OFunique_ptr< Layout > | layout |
The layout variable does not need to be set if the appender implementation has its own layout. More... | |
log4cplus::tstring | name |
Appenders are named. More... | |
LogLevel | threshold |
There is no LogLevel threshold filtering by default. More... | |
log4cplus::spi::FilterPtr | filter |
The first filter in the filter chain. More... | |
OFunique_ptr< ErrorHandler > | errorHandler |
It is assumed and enforced that errorHandler is never null. More... | |
OFunique_ptr< helpers::LockFile > | lockFile |
Optional system wide synchronization lock. | |
bool | useLockFile |
Use lock file for inter-process synchronization of access to log file. More... | |
bool | closed |
Is this appender closed? | |
Additional Inherited Members |
Appends log events to a file.
File
This property specifies output file name.
ImmediateFlush
When it is set true, output stream will be flushed after each appended event.
Append
When it is set true, output file will be appended to instead of being truncated at opening.
ReopenDelay
This property sets a delay after which the appender will try to reopen log file again, after last logging failure.
BufferSize
Non-zero value of this property sets up buffering of output stream using a buffer of given size.
UseLockFile
true
if you want your output to go into a log file shared by multiple processes. When this property is set to true then log4cplus uses OS specific facilities (e.g., lockf()
) to provide inter-process file locking. LockFile
File
property by addition of ".lock" suffix. The property is only used when UseLockFile
is set to true. Locale
en_US.UTF-8
, or by one of four recognized keywords: GLOBAL
, DEFAULT
(which is an alias for GLOBAL
), USER
and CLASSIC
. When specified locale is not available, GLOBAL
is used instead. It is possible to register additional locale keywords by registering an instance of spi::LocaleFactory
in spi::LocaleFactoryRegistry
.
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virtual |
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virtual |
Redefine default locale for output stream.
It may be a good idea to provide UTF-8 locale in case UNICODE macro is defined.
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protected |
Immediate flush means that the underlying writer or output stream will be flushed at the end of each append operation.
Immediate flush is slower but ensures that each append request is actually written. If immediateFlush
is set to false
, then there is a good chance that the last few logs events are not actually written to persistent media if and when the application crashes.
The immediateFlush
variable is set to true
by default.
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protected |
When any append operation fails, reopenDelay
says for how many seconds the next attempt to re-open the log file and resume logging will be delayed.
If reopenDelay
is zero, each failed append operation will cause log file to be re-opened. By default, reopenDelay
is 1 second.