log4cpp::PatternLayout (3) Linux Manual Page

log4cpp::PatternLayout –

PatternLayout is a simple fixed format Layout implementation.

Synopsis

#include <PatternLayout.hh>

Inherits log4cpp::Layout.

Classes

class PatternComponent

Public Member Functions

PatternLayout ()

virtual ~PatternLayout ()

virtual std::string format (const LoggingEvent &event)
Formats the LoggingEvent in the style set by the setConversionPattern call.
virtual void setConversionPattern (const std::string &conversionPattern) throw (ConfigureFailure)
Sets the format of log lines handled by this PatternLayout.
virtual std::string getConversionPattern () const

virtual void clearConversionPattern ()

Static Public Attributes

static const char * DEFAULT_CONVERSION_PATTERN = ‘%m%n’
The default conversion pattern.
static const char * SIMPLE_CONVERSION_PATTERN = ‘%p – %m%n’
A conversion pattern equivalent to the SimpleLayout.
static const char * BASIC_CONVERSION_PATTERN = ‘%R %p %c %x: %m%n’
A conversion pattern equivalent to the BasicLayout.
static const char * TTCC_CONVERSION_PATTERN = ‘%r [%t] %p %c %x – %m%n’
A conversion pattern equivalent to the TTCCLayout.

Detailed Description

PatternLayout is a simple fixed format Layout implementation.

Constructor & Destructor Documentation

log4cpp::PatternLayout::PatternLayout ()

log4cpp::PatternLayout::~PatternLayout () [virtual]

Member Function Documentation

void log4cpp::PatternLayout::clearConversionPattern () [virtual]

std::string log4cpp::PatternLayout::format (const LoggingEvent &event) [virtual]

Formats the LoggingEvent in the style set by the setConversionPattern call. By default, set to ‘%%m%%n’

Implements log4cpp::Layout.

std::string log4cpp::PatternLayout::getConversionPattern () const [virtual]

void log4cpp::PatternLayout::setConversionPattern (const std::string &conversionPattern)ConfigureFailure [virtual]

Sets the format of log lines handled by this PatternLayout. By default, set to ‘%%m%%n’.

 Format characters are as follows:

 %% – a single percent sign %c – the category %d – the date

 Date format: The date format character may be followed by a date format specifier enclosed between braces. For example, %d{%H:%M:%S,%l} or %d{%d %m %Y %H:%M:%S,%l}. If no date format specifier is given then the following format is used: ‘Wed Jan 02 02:03:55 1980’. The date format specifier admits the same syntax as the ANSI C function strftime, with 1 addition. The addition is the specifier %l for milliseconds, padded with zeros to make 3 digits. %m – the message %n – the platform specific line separator %p – the priority %r – milliseconds since this layout was created. %R – seconds since Jan 1, 1970 %u – clock ticks since process start %x – the NDC 

Parameters:

conversionPattern the conversion pattern

Exceptions:

ConfigureFailure if the pattern is invalid

Member Data Documentation

const char * log4cpp::PatternLayout::BASIC_CONVERSION_PATTERN = ‘%R %p %c %x: %m%n’ [static]

A conversion pattern equivalent to the BasicLayout.

const char * log4cpp::PatternLayout::DEFAULT_CONVERSION_PATTERN = ‘%m%n’ [static]

The default conversion pattern.

const char * log4cpp::PatternLayout::SIMPLE_CONVERSION_PATTERN = ‘%p – %m%n’ [static]

A conversion pattern equivalent to the SimpleLayout.

const char * log4cpp::PatternLayout::TTCC_CONVERSION_PATTERN = ‘%r [%t] %p %c %x – %m%n’ [static]

A conversion pattern equivalent to the TTCCLayout. Note: TTCCLayout is in log4j but not log4cpp.

Author

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