# Log to a file, or stdout, or stderr for all categories # use Log::Any::Adapter ('File', '/path/to/file.log'); use Log::Any::Adapter ('Stdout'); use Log::Any::Adapter ('Stderr'); # Use Log::Log4perl for all categories # Log::Log4perl::init('/etc/log4perl.conf'); Log::Any::Adapter->set('Log4perl'); # Use Log::Dispatch for Foo::Baz # use Log::Dispatch; my $log = Log::Dispatch->new(outputs => [[ ... ]]); Log::Any::Adapter->set( { category => 'Foo::Baz' }, 'Dispatch', dispatcher => $log ); # Use Log::Dispatch::Config for Foo::Baz and its subcategories # use Log::Dispatch::Config; Log::Dispatch::Config->configure('/path/to/log.conf'); Log::Any::Adapter->set( { category => qr/^Foo::Baz/ }, 'Dispatch', dispatcher => Log::Dispatch::Config->instance() ); # Use your own adapter for all categories # Log::Any::Adapter->set('+My::Log::Any::Adapter', ...);
use Log::Any::Adapter ('File', '/path/to/file.log'); use Log::Any::Adapter ('Stdout'); use Log::Any::Adapter ('Stderr'); # or use Log::Any::Adapter; Log::Any::Adapter->set('File', '/path/to/file.log'); Log::Any::Adapter->set('Stdout'); Log::Any::Adapter->set('Stderr');
All of them simply output the message and newline to the specified destination; a datestamp prefix is added in the "File" case. For anything more complex you'll want to use a more robust adapter from CPAN.
You may find other adapters on CPAN by searching for ``Log::Any::Adapter'', or create your own adapter. See Log::Any::Adapter::Development for more information on the latter.
adapter_name is the name of an adapter. It is automatically prepended with ``Log::Any::Adapter::''. If instead you want to pass the full name of an adapter, prefix it with a ``+''. e.g.
# Use My::Adapter class Log::Any::Adapter->set('+My::Adapter', arg => $value);
adapter_params are passed along to the adapter constructor. See the documentation for the individual adapter classes for more information.
An optional hash of options may be passed as the first argument. Options are:
{ Log::Any::Adapter->set({lexically => \my $lex}, ...); # in effect here ... } # no longer in effect here
"set" returns an entry object, which can be passed to "remove". If you call "set" repeatedly without calling "remove" you will leak memory. For most programs that set an adapter once until the end of the program, this shouldn't matter.
When getting a logger for a particular category, "Log::Any" will work its way down the stack and use the first matching entry.
Whenever the stack changes, any "Log::Any" loggers that have previously been created will automatically adjust to the new stack. For example:
my $log = Log::Any->get_logger(); $log->error("aiggh!"); # this goes nowhere ... { Log::Any::Adapter->set({ lexically => \my $lex }, 'Log4perl'); $log->error("aiggh!"); # this goes to log4perl ... } $log->error("aiggh!"); # this goes nowhere again
my $adapter= Log::Any::Adapter->get($category);
The primary intended way to extend the producing-side of Log::Any is with a custom Log::Any::Proxy class. However, for special logging scenarios you might also just want access to the adapter for a given category. The API of an adapter object is described in Log::Any::Adapter::Development. Beware that adapter objects can be ``rewritten'' on the fly, so any conditional behavior you write depending on the capabilities of an adapter must be re-checked every time you access the adapter.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.