Munin::Node::Logger(3pm) User Contributed Perl Documentation Munin::Node::Logger(3pm)NAME
Munin::Node::Logger - The logger for munin node.
SYNOPSIS
Exports a logger() subroutine.
use Munin::Node::Logger;
logger("Nice log message");
SUBROUTINES
logger()
logger($message);
Writes $message to STDERR together with the timestamp and process id.
perl v5.14.2 2013-11-12 Munin::Node::Logger(3pm)
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Courier::Filter::Logger(3pm) User Contributed Perl Documentation Courier::Filter::Logger(3pm)NAME
Courier::Filter::Logger - Abstract base class for loggers used by the Courier::Filter framework
SYNOPSIS
Courier::Filter logging
use Courier::Filter::Logger::My; # Need to use a non-abstract sub-class.
my $logger = Courier::Filter::Logger::My->new(%options);
# For use in an individual filter module:
my $module = Courier::Filter::Module::My->new(
...
logger => $logger,
...
);
# For use as a global Courier::Filter logger object:
my $filter = Courier::Filter->new(
...
logger => $logger,
...
);
Deriving new logger classes
package Courier::Filter::Logger::My;
use base qw(Courier::Filter::Logger);
DESCRIPTION
Sub-classes of Courier::Filter::Logger are used by the Courier::Filter mail filtering framework and its filter modules for the logging of
errors and message rejections to arbitrary targets, like file handles or databases.
When overriding a method in a derived class, do not forget calling the inherited method from your overridden method.
Constructor
The following constructor is provided and may be overridden:
new(%options): returns Courier::Filter::Logger
Creates a new logger using the %options given as a list of key/value pairs. Initializes the logger, by creating/opening I/O handles,
connecting to databases, etc..
"Courier::Filter::Logger::new()" creates a hash-ref as an object of the invoked class, and stores the %options in it, but does nothing
else.
Destructor
The following destructor is provided and may be overridden:
destroy
Uninitializes the logger, by closing I/O handles, disconnecting from databases, etc..
"Courier::Filter::Logger::destroy()" does nothing. Sub-classes may override this method and define clean-up behavior.
Instance methods
The following instance methods are provided and may be overridden:
log_error($text)
Logs the error message given as $text (a string which may contain newlines).
"Courier::Filter::Logger::log_error()" does nothing and should be overridden.
log_rejected_message($message, $reason)
Logs the Courier::Message given as $message as having been rejected due to $reason (a string which may contain newlines).
"Courier::Filter::Logger::log_rejected_message()" does nothing and should be overridden.
SEE ALSO
Courier::Filter, Courier::Filter::Module.
For a list of prepared loggers that come with Courier::Filter, see "Bundled Courier::Filter loggers" in Courier::Filter::Overview.
For AVAILABILITY, SUPPORT, and LICENSE information, see Courier::Filter::Overview.
AUTHOR
Julian Mehnle <julian@mehnle.net>
perl v5.14.2 2011-12-27 Courier::Filter::Logger(3pm)
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