Apache log4cxx
Version 0.10.0
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DailyRollingFileAppender extends FileAppender so that the underlying file is rolled over at a user chosen frequency. More...
Public Member Functions | |
DailyRollingFileAppender () | |
The default constructor simply calls its parents constructor. More... | |
DailyRollingFileAppender (const LayoutPtr &layout, const LogString &filename, const LogString &datePattern) | |
Instantiate a DailyRollingFileAppender and open the file designated by filename . More... | |
void | setDatePattern (const LogString &pattern) |
The DatePattern takes a string in the same format as expected by SimpleDateFormat. More... | |
LogString | getDatePattern () |
Returns the value of the DatePattern option. More... | |
void | setOption (const LogString &option, const LogString &value) |
Set option to value . More... | |
void | activateOptions (log4cxx::helpers::Pool &) |
Prepares DailyRollingFileAppender for use. More... | |
Public Member Functions inherited from RollingFileAppenderSkeleton | |
RollingFileAppenderSkeleton () | |
The default constructor simply calls its parents constructor. More... | |
void | activateOptions (log4cxx::helpers::Pool &) |
bool | rollover (log4cxx::helpers::Pool &p) |
Implements the usual roll over behaviour. More... | |
void | close () |
Close appender. More... | |
size_t | getFileLength () const |
Get byte length of current active log file. More... | |
void | incrementFileLength (size_t increment) |
Increments estimated byte length of current active log file. More... | |
Public Member Functions inherited from FileAppender | |
FileAppender () | |
The default constructor does not do anything. More... | |
FileAppender (const LayoutPtr &layout, const LogString &filename, bool append, bool bufferedIO, int bufferSize) | |
Instantiate a FileAppender and open the file designated by filename . More... | |
FileAppender (const LayoutPtr &layout, const LogString &filename, bool append) | |
Instantiate a FileAppender and open the file designated by filename . More... | |
FileAppender (const LayoutPtr &layout, const LogString &filename) | |
Instantiate a FileAppender and open the file designated by filename . More... | |
~FileAppender () | |
virtual void | setFile (const LogString &file) |
The File property takes a string value which should be the name of the file to append to. More... | |
virtual void | setFile (const LogString &file, bool append, bool bufferedIO, size_t bufferSize, log4cxx::helpers::Pool &p) |
Sets and opens the file where the log output will go. More... | |
bool | getAppend () const |
Returns the value of the Append option. More... | |
LogString | getFile () const |
Returns the value of the File option. More... | |
void | setOption (const LogString &option, const LogString &value) |
Set option to value . More... | |
bool | getBufferedIO () const |
Get the value of the BufferedIO option. More... | |
int | getBufferSize () const |
Get the size of the IO buffer. More... | |
void | setAppend (bool fileAppend1) |
The Append option takes a boolean value. More... | |
void | setBufferedIO (bool bufferedIO) |
The BufferedIO option takes a boolean value. More... | |
void | setBufferSize (int bufferSize1) |
Set the size of the IO buffer. More... | |
Public Member Functions inherited from WriterAppender | |
WriterAppender () | |
This default constructor does nothing. More... | |
~WriterAppender () | |
void | setImmediateFlush (bool value) |
If the ImmediateFlush option is set to true , the appender will flush at the end of each write. More... | |
bool | getImmediateFlush () const |
Returns value of the ImmediateFlush option. More... | |
virtual void | append (const spi::LoggingEventPtr &event, log4cxx::helpers::Pool &p) |
This method is called by the AppenderSkeleton::doAppend method. More... | |
LogString | getEncoding () const |
void | setEncoding (const LogString &value) |
void | setOption (const LogString &option, const LogString &value) |
Set option to value . More... | |
void | setWriter (const log4cxx::helpers::WriterPtr &writer) |
virtual bool | requiresLayout () const |
Configurators call this method to determine if the appender requires a layout. More... | |
Public Member Functions inherited from AppenderSkeleton | |
AppenderSkeleton () | |
AppenderSkeleton (const LayoutPtr &layout) | |
void | addRef () const |
void | releaseRef () const |
void | finalize () |
Finalize this appender by calling the derived class' close method. More... | |
void | addFilter (const spi::FilterPtr &newFilter) |
Add a filter to end of the filter list. More... | |
void | clearFilters () |
Clear the filters chain. More... | |
const spi::ErrorHandlerPtr & | getErrorHandler () const |
Return the currently set spi::ErrorHandler for this Appender. More... | |
spi::FilterPtr | getFilter () const |
Returns the head Filter. More... | |
const spi::FilterPtr & | getFirstFilter () const |
Return the first filter in the filter chain for this Appender. More... | |
LayoutPtr | getLayout () const |
Returns the layout of this appender. More... | |
LogString | getName () const |
Returns the name of this Appender. More... | |
const LevelPtr & | getThreshold () |
Returns this appenders threshold level. More... | |
bool | isAsSevereAsThreshold (const LevelPtr &level) const |
Check whether the message level is below the appender's threshold. More... | |
void | doAppend (const spi::LoggingEventPtr &event, log4cxx::helpers::Pool &pool) |
This method performs threshold checks and invokes filters before delegating actual logging to the subclasses specific AppenderSkeleton::append method. More... | |
void | setErrorHandler (const spi::ErrorHandlerPtr &eh) |
Set the ErrorHandler for this Appender. More... | |
void | setLayout (const LayoutPtr &layout1) |
Set the layout for this appender. More... | |
void | setName (const LogString &name1) |
Set the name of this Appender. More... | |
void | setThreshold (const LevelPtr &threshold) |
Set the threshold level. More... | |
Public Member Functions inherited from Appender | |
virtual | ~Appender () |
Public Member Functions inherited from OptionHandler | |
virtual | ~OptionHandler () |
Public Member Functions inherited from Object | |
virtual const helpers::Class & | getClass () const |
virtual | ~Object () |
virtual bool | instanceof (const Class &clazz) const =0 |
virtual const void * | cast (const Class &clazz) const =0 |
Public Member Functions inherited from ObjectImpl | |
ObjectImpl () | |
virtual | ~ObjectImpl () |
void | addRef () const |
void | releaseRef () const |
Additional Inherited Members | |
Static Public Member Functions inherited from FileAppender | |
static LogString | stripDuplicateBackslashes (const LogString &name) |
Replaces double backslashes with single backslashes for compatibility with paths from earlier XML configurations files. More... | |
Static Public Member Functions inherited from Object | |
static const helpers::Class & | getStaticClass () |
static const log4cxx::helpers::ClassRegistration & | registerClass () |
Protected Member Functions inherited from RollingFileAppenderSkeleton | |
virtual void | subAppend (const spi::LoggingEventPtr &event, log4cxx::helpers::Pool &p) |
Actual writing occurs here. More... | |
RollingPolicyPtr | getRollingPolicy () const |
TriggeringPolicyPtr | getTriggeringPolicy () const |
void | setRollingPolicy (const RollingPolicyPtr &policy) |
Sets the rolling policy. More... | |
void | setTriggeringPolicy (const TriggeringPolicyPtr &policy) |
log4cxx::helpers::WriterPtr | createWriter (log4cxx::helpers::OutputStreamPtr &os) |
Returns an OutputStreamWriter when passed an OutputStream. More... | |
Protected Member Functions inherited from WriterAppender | |
WriterAppender (const LayoutPtr &layout, log4cxx::helpers::WriterPtr &writer) | |
WriterAppender (const LayoutPtr &layout) | |
virtual bool | checkEntryConditions () const |
This method determines if there is a sense in attempting to append. More... | |
void | closeWriter () |
Close the underlying log4cxx::helpers::Writer. More... | |
virtual void | writeFooter (log4cxx::helpers::Pool &p) |
Write a footer as produced by the embedded layout's Layout::appendFooter method. More... | |
virtual void | writeHeader (log4cxx::helpers::Pool &p) |
Write a header as produced by the embedded layout's Layout::appendHeader method. More... | |
Protected Attributes inherited from FileAppender | |
bool | fileAppend |
Append to or truncate the file? The default value for this variable is true , meaning that by default a FileAppender will append to an existing file and not truncate it. More... | |
LogString | fileName |
The name of the log file. More... | |
bool | bufferedIO |
Do we do bufferedIO? More... | |
int | bufferSize |
How big should the IO buffer be? Default is 8K. More... | |
Protected Attributes inherited from AppenderSkeleton | |
LayoutPtr | layout |
The layout variable does not need to be set if the appender implementation has its own layout. More... | |
LogString | name |
Appenders are named. More... | |
LevelPtr | threshold |
There is no level threshold filtering by default. More... | |
spi::ErrorHandlerPtr | errorHandler |
It is assumed and enforced that errorHandler is never null. More... | |
spi::FilterPtr | headFilter |
The first filter in the filter chain. More... | |
spi::FilterPtr | tailFilter |
The last filter in the filter chain. More... | |
bool | closed |
Is this appender closed? More... | |
log4cxx::helpers::Pool | pool |
log4cxx::helpers::Mutex | mutex |
Protected Attributes inherited from ObjectImpl | |
unsigned int volatile | ref |
DailyRollingFileAppender extends FileAppender so that the underlying file is rolled over at a user chosen frequency.
The rolling schedule is specified by the DatePattern option. This pattern should follow the SimpleDateFormat conventions. In particular, you must escape literal text within a pair of single quotes. A formatted version of the date pattern is used as the suffix for the rolled file name.
For example, if the File option is set to /foo/bar.log
and the DatePattern set to '.'yyyy-MM-dd
, on 2001-02-16 at midnight, the logging file /foo/bar.log
will be copied to /foo/bar.log.2001-02-16
and logging for 2001-02-17 will continue in /foo/bar.log
until it rolls over the next day.
Is is possible to specify monthly, weekly, half-daily, daily, hourly, or minutely rollover schedules.
DatePattern | Rollover schedule | Example |
---|---|---|
'.'yyyy-MM | Rollover at the beginning of each month | At midnight of May 31st, 2002 |
| Rollover at the first day of each week. The first day of the week depends on the locale. | Assuming the first day of the week is Sunday, on Saturday midnight, June 9th 2002, the file /foo/bar.log will be copied to /foo/bar.log.2002-23. Logging for the 24th week of 2002 will be output to |
| Rollover at midnight each day. | At midnight, on March 8th, 2002, |
| Rollover at midnight and midday of each day. | At noon, on March 9th, 2002, |
| Rollover at the top of every hour. | At approximately 11:00.000 o'clock on March 9th, 2002, |
| Rollover at the beginning of every minute. | At approximately 11:23,000, on March 9th, 2001, |
Do not use the colon ":" character in anywhere in the DatePattern option. The text before the colon is interpeted as the protocol specificaion of a URL which is probably not what you want.
The default constructor simply calls its parents constructor.
DailyRollingFileAppender | ( | const LayoutPtr & | layout, |
const LogString & | filename, | ||
const LogString & | datePattern | ||
) |
Instantiate a DailyRollingFileAppender and open the file designated by filename
.
The opened filename will become the ouput destination for this appender.
|
virtual |
Prepares DailyRollingFileAppender for use.
Reimplemented from WriterAppender.
LogString getDatePattern | ( | ) |
Returns the value of the DatePattern option.
void setDatePattern | ( | const LogString & | pattern | ) |
The DatePattern takes a string in the same format as expected by SimpleDateFormat.
This options determines the rollover schedule.
Set option
to value
.
The handling of each option depends on the OptionHandler instance. Some options may become active immediately whereas other may be activated only when activateOptions is called.
Reimplemented from AppenderSkeleton.