Commit | Line | Data |
5d8f2b84 |
1 | # add example for Log::Dispatchouli |
5d8f2b84 |
2 | # |
3 | # default logger stuff |
4 | # < mst> there are two cases |
5 | # < mst> (1) application code: expects an app logger to be set and fuck you if it |
6 | # isn't |
7 | # < mst> (i.e. die screaming if it gets called without a logger setup) |
8 | # < frew> sure |
9 | # < mst> (2) library code: uses an app logger IF exists, but if not, needs to do ... |
10 | # something sensible |
11 | # < mst> but doesn't want to affect the rest of the world doing so |
12 | # < frew> sounds like library code wants default_logger which is a packageish logger? |
13 | # |
14 | # make basic warn logger |
15 | |
16 | |
0daa11f3 |
17 | package Log::Contextual; |
18 | |
a2777569 |
19 | use strict; |
20 | use warnings; |
2033c911 |
21 | |
1b3aa6c8 |
22 | our $VERSION = '0.00101'; |
2033c911 |
23 | |
24 | require Exporter; |
f11f9542 |
25 | use Data::Dumper::Concise; |
5b094c87 |
26 | use Scalar::Util 'blessed'; |
2033c911 |
27 | |
a2777569 |
28 | BEGIN { our @ISA = qw(Exporter) } |
2033c911 |
29 | |
9b8e24d5 |
30 | my @dlog = (qw( |
f11f9542 |
31 | Dlog_debug DlogS_debug |
32 | Dlog_trace DlogS_trace |
33 | Dlog_warn DlogS_warn |
34 | Dlog_info DlogS_info |
35 | Dlog_error DlogS_error |
36 | Dlog_fatal DlogS_fatal |
9b8e24d5 |
37 | )); |
f11f9542 |
38 | |
9b8e24d5 |
39 | my @log = (qw( |
9061df76 |
40 | log_debug logS_debug |
41 | log_trace logS_trace |
42 | log_warn logS_warn |
43 | log_info logS_info |
44 | log_error logS_error |
45 | log_fatal logS_fatal |
9b8e24d5 |
46 | )); |
f11f9542 |
47 | |
a2777569 |
48 | our @EXPORT_OK = ( |
f11f9542 |
49 | @dlog, @log, |
9b8e24d5 |
50 | qw( set_logger with_logger ) |
f11f9542 |
51 | ); |
52 | |
a2777569 |
53 | our %EXPORT_TAGS = ( |
f11f9542 |
54 | dlog => \@dlog, |
55 | log => \@log, |
3dc9bd3c |
56 | all => [@dlog, @log], |
f11f9542 |
57 | ); |
58 | |
59 | sub import { |
a2777569 |
60 | my $package = shift; |
f11f9542 |
61 | die 'Log::Contextual does not have a default import list' |
a2777569 |
62 | unless @_; |
63 | |
64 | for my $idx ( 0 .. $#_ ) { |
65 | if ( $_[$idx] eq '-logger' ) { |
66 | set_logger($_[$idx + 1]); |
67 | splice @_, $idx, 2; |
68 | last; |
69 | } |
70 | } |
71 | $package->export_to_level(1, $package, @_); |
f11f9542 |
72 | } |
2033c911 |
73 | |
7cec609c |
74 | our $Get_Logger; |
5d8f2b84 |
75 | our %Default_Logger; |
76 | |
77 | sub _get_logger($) { |
78 | my $package = shift; |
79 | ( |
80 | $Get_Logger || |
81 | $Default_Logger{$package} || |
82 | die q( no logger set! you can't try to log something without a logger! ) |
83 | )->(); |
84 | } |
7cec609c |
85 | |
8dc5a747 |
86 | sub set_logger { |
87 | my $logger = $_[0]; |
5b094c87 |
88 | if(ref $logger ne 'CODE') { |
89 | die 'logger was not a CodeRef or a logger object. Please try again.' |
90 | unless blessed($logger); |
91 | $logger = do { my $l = $logger; sub { $l } } |
92 | } |
5d8f2b84 |
93 | |
94 | warn 'set_logger (or -logger) called more than once! This is a bad idea!' |
95 | if $Get_Logger; |
8dc5a747 |
96 | $Get_Logger = $logger; |
7cec609c |
97 | } |
98 | |
98833ffb |
99 | sub with_logger { |
100 | my $logger = $_[0]; |
5b094c87 |
101 | if(ref $logger ne 'CODE') { |
102 | die 'logger was not a CodeRef or a logger object. Please try again.' |
103 | unless blessed($logger); |
104 | $logger = do { my $l = $logger; sub { $l } } |
105 | } |
98833ffb |
106 | local $Get_Logger = $logger; |
80c3e48b |
107 | $_[1]->(); |
2daff231 |
108 | } |
109 | |
a4273dbf |
110 | |
111 | |
4d8ea78d |
112 | sub log_trace (&@) { |
5d8f2b84 |
113 | my $log = _get_logger( caller ); |
4d8ea78d |
114 | my $code = shift; |
115 | $log->trace($code->(@_)) |
6dc6632a |
116 | if $log->is_trace; |
4d8ea78d |
117 | @_ |
6dc6632a |
118 | } |
119 | |
4d8ea78d |
120 | sub log_debug (&@) { |
5d8f2b84 |
121 | my $log = _get_logger( caller ); |
4d8ea78d |
122 | my $code = shift; |
123 | $log->debug($code->(@_)) |
7cec609c |
124 | if $log->is_debug; |
4d8ea78d |
125 | @_ |
7cec609c |
126 | } |
127 | |
4d8ea78d |
128 | sub log_info (&@) { |
5d8f2b84 |
129 | my $log = _get_logger( caller ); |
4d8ea78d |
130 | my $code = shift; |
131 | $log->info($code->(@_)) |
6dc6632a |
132 | if $log->is_info; |
4d8ea78d |
133 | @_ |
6dc6632a |
134 | } |
135 | |
4d8ea78d |
136 | sub log_warn (&@) { |
5d8f2b84 |
137 | my $log = _get_logger( caller ); |
4d8ea78d |
138 | my $code = shift; |
139 | $log->warn($code->(@_)) |
6dc6632a |
140 | if $log->is_warn; |
4d8ea78d |
141 | @_ |
6dc6632a |
142 | } |
143 | |
4d8ea78d |
144 | sub log_error (&@) { |
5d8f2b84 |
145 | my $log = _get_logger( caller ); |
4d8ea78d |
146 | my $code = shift; |
147 | $log->error($code->(@_)) |
6dc6632a |
148 | if $log->is_error; |
4d8ea78d |
149 | @_ |
6dc6632a |
150 | } |
151 | |
4d8ea78d |
152 | sub log_fatal (&@) { |
5d8f2b84 |
153 | my $log = _get_logger( caller ); |
4d8ea78d |
154 | my $code = shift; |
155 | $log->fatal($code->(@_)) |
6dc6632a |
156 | if $log->is_fatal; |
4d8ea78d |
157 | @_ |
6dc6632a |
158 | } |
159 | |
f11f9542 |
160 | |
709d11fe |
161 | sub logS_trace (&$) { |
5d8f2b84 |
162 | my $log = _get_logger( caller ); |
709d11fe |
163 | my $code = shift; |
164 | my $value = shift; |
165 | $log->trace($code->($value)) |
166 | if $log->is_trace; |
167 | $value |
168 | } |
169 | |
170 | sub logS_debug (&$) { |
5d8f2b84 |
171 | my $log = _get_logger( caller ); |
709d11fe |
172 | my $code = shift; |
173 | my $value = shift; |
174 | $log->debug($code->($value)) |
175 | if $log->is_debug; |
176 | $value |
177 | } |
178 | |
179 | sub logS_info (&$) { |
5d8f2b84 |
180 | my $log = _get_logger( caller ); |
709d11fe |
181 | my $code = shift; |
182 | my $value = shift; |
183 | $log->info($code->($value)) |
184 | if $log->is_info; |
185 | $value |
186 | } |
187 | |
188 | sub logS_warn (&$) { |
5d8f2b84 |
189 | my $log = _get_logger( caller ); |
709d11fe |
190 | my $code = shift; |
191 | my $value = shift; |
192 | $log->warn($code->($value)) |
193 | if $log->is_warn; |
194 | $value |
195 | } |
196 | |
197 | sub logS_error (&$) { |
5d8f2b84 |
198 | my $log = _get_logger( caller ); |
709d11fe |
199 | my $code = shift; |
200 | my $value = shift; |
201 | $log->error($code->($value)) |
202 | if $log->is_error; |
203 | $value |
204 | } |
205 | |
206 | sub logS_fatal (&$) { |
5d8f2b84 |
207 | my $log = _get_logger( caller ); |
709d11fe |
208 | my $code = shift; |
209 | my $value = shift; |
210 | $log->fatal($code->($value)) |
211 | if $log->is_fatal; |
212 | $value |
213 | } |
214 | |
215 | |
f11f9542 |
216 | |
217 | sub Dlog_trace (&@) { |
218 | my $code = shift; |
219 | my @values = @_; |
5a1c7d54 |
220 | return log_trace { |
db70b0a5 |
221 | if (@values) { |
222 | do { local $_ = Data::Dumper::Concise::Dumper @values; $code->() }; |
223 | } else { |
224 | do { local $_ = '()'; $code->() }; |
225 | } |
5a1c7d54 |
226 | } @values |
f11f9542 |
227 | } |
228 | |
a4273dbf |
229 | sub Dlog_debug (&@) { |
230 | my $code = shift; |
231 | my @values = @_; |
232 | log_debug { |
db70b0a5 |
233 | if (@values) { |
234 | do { local $_ = Data::Dumper::Concise::Dumper @values; $code->() }; |
235 | } else { |
236 | do { local $_ = '()'; $code->() }; |
237 | } |
a4273dbf |
238 | } @values |
239 | } |
240 | |
241 | sub Dlog_info (&@) { |
242 | my $code = shift; |
243 | my @values = @_; |
244 | log_info { |
db70b0a5 |
245 | if (@values) { |
246 | do { local $_ = Data::Dumper::Concise::Dumper @values; $code->() }; |
247 | } else { |
248 | do { local $_ = '()'; $code->() }; |
249 | } |
a4273dbf |
250 | } @values |
251 | } |
252 | |
253 | sub Dlog_warn (&@) { |
254 | my $code = shift; |
255 | my @values = @_; |
256 | log_warn { |
db70b0a5 |
257 | if (@values) { |
258 | do { local $_ = Data::Dumper::Concise::Dumper @values; $code->() }; |
259 | } else { |
260 | do { local $_ = '()'; $code->() }; |
261 | } |
a4273dbf |
262 | } @values |
263 | } |
264 | |
265 | sub Dlog_error (&@) { |
266 | my $code = shift; |
267 | my @values = @_; |
268 | log_error { |
db70b0a5 |
269 | if (@values) { |
270 | do { local $_ = Data::Dumper::Concise::Dumper @values; $code->() }; |
271 | } else { |
272 | do { local $_ = '()'; $code->() }; |
273 | } |
a4273dbf |
274 | } @values |
275 | } |
276 | |
277 | sub Dlog_fatal (&@) { |
278 | my $code = shift; |
279 | my @values = @_; |
280 | log_fatal { |
db70b0a5 |
281 | if (@values) { |
282 | do { local $_ = Data::Dumper::Concise::Dumper @values; $code->() }; |
283 | } else { |
284 | do { local $_ = '()'; $code->() }; |
285 | } |
a4273dbf |
286 | } @values |
287 | } |
288 | |
289 | |
290 | |
f11f9542 |
291 | sub DlogS_trace (&$) { |
292 | my $code = $_[0]; |
293 | my $value = $_[1]; |
709d11fe |
294 | logS_trace { |
f11f9542 |
295 | do { local $_ = Data::Dumper::Concise::Dumper $value; $code->() }; |
709d11fe |
296 | } $value |
f11f9542 |
297 | } |
298 | |
f11f9542 |
299 | sub DlogS_debug (&$) { |
300 | my $code = $_[0]; |
301 | my $value = $_[1]; |
709d11fe |
302 | logS_debug { |
f11f9542 |
303 | do { local $_ = Data::Dumper::Concise::Dumper $value; $code->() }; |
709d11fe |
304 | } $value |
f11f9542 |
305 | } |
306 | |
f11f9542 |
307 | sub DlogS_info (&$) { |
308 | my $code = $_[0]; |
309 | my $value = $_[1]; |
709d11fe |
310 | logS_info { |
f11f9542 |
311 | do { local $_ = Data::Dumper::Concise::Dumper $value; $code->() }; |
709d11fe |
312 | } $value |
f11f9542 |
313 | } |
314 | |
f11f9542 |
315 | sub DlogS_warn (&$) { |
316 | my $code = $_[0]; |
317 | my $value = $_[1]; |
709d11fe |
318 | logS_warn { |
f11f9542 |
319 | do { local $_ = Data::Dumper::Concise::Dumper $value; $code->() }; |
709d11fe |
320 | } $value |
f11f9542 |
321 | } |
322 | |
f11f9542 |
323 | sub DlogS_error (&$) { |
324 | my $code = $_[0]; |
325 | my $value = $_[1]; |
709d11fe |
326 | logS_error { |
f11f9542 |
327 | do { local $_ = Data::Dumper::Concise::Dumper $value; $code->() }; |
709d11fe |
328 | } $value |
f11f9542 |
329 | } |
330 | |
f11f9542 |
331 | sub DlogS_fatal (&$) { |
332 | my $code = $_[0]; |
333 | my $value = $_[1]; |
709d11fe |
334 | logS_fatal { |
f11f9542 |
335 | do { local $_ = Data::Dumper::Concise::Dumper $value; $code->() }; |
709d11fe |
336 | } $value |
f11f9542 |
337 | } |
338 | |
0daa11f3 |
339 | 1; |
0a3750e2 |
340 | |
341 | __END__ |
342 | |
2daff231 |
343 | =head1 NAME |
344 | |
8bc568d2 |
345 | Log::Contextual - Simple logging interface with a contextual log |
2daff231 |
346 | |
347 | =head1 SYNOPSIS |
348 | |
9b8e24d5 |
349 | use Log::Contextual qw( :log :dlog set_logger with_logger ); |
5b094c87 |
350 | use Log::Contextual::SimpleLogger; |
351 | use Log::Log4perl ':easy'; |
352 | Log::Log4perl->easy_init($DEBUG); |
2daff231 |
353 | |
2daff231 |
354 | |
5b094c87 |
355 | my $logger = Log::Log4perl->get_logger; |
356 | |
357 | set_logger $logger; |
2daff231 |
358 | |
9b8e24d5 |
359 | log_debug { 'program started' }; |
2daff231 |
360 | |
361 | sub foo { |
9b8e24d5 |
362 | with_logger(Log::Contextual::SimpleLogger->new({ |
363 | levels => [qw( trace debug )] |
21431192 |
364 | }) => sub { |
365 | log_trace { 'foo entered' }; |
9b8e24d5 |
366 | my ($foo, $bar) = Dlog_trace { "params for foo: $_" } @_; |
2daff231 |
367 | # ... |
21431192 |
368 | log_trace { 'foo left' }; |
9b8e24d5 |
369 | }); |
2daff231 |
370 | } |
371 | |
5b094c87 |
372 | foo(); |
373 | |
2daff231 |
374 | =head1 DESCRIPTION |
375 | |
3dc9bd3c |
376 | This module is a simple interface to extensible logging. It is bundled with a |
377 | really basic logger, L<Log::Contextual::SimpleLogger>, but in general you |
378 | should use a real logger instead of that. For something more serious but not |
379 | overly complicated, take a look at L<Log::Dispatchouli>. |
380 | |
381 | =head1 OPTIONS |
382 | |
383 | When you import this module you may use C<-logger> as a shortcut for |
384 | L<set_logger>, for example: |
385 | |
386 | use Log::Contextual::SimpleLogger; |
9b8e24d5 |
387 | use Log::Contextual qw( :dlog ), |
388 | -logger => Log::Contextual::SimpleLogger->new({ levels => [qw( debug )] }); |
3dc9bd3c |
389 | |
390 | sometimes you might want to have the logger handy for other stuff, in which |
391 | case you might try something like the following: |
392 | |
393 | my $var_log; |
394 | BEGIN { $var_log = VarLogger->new } |
9b8e24d5 |
395 | use Log::Contextual qw( :dlog ), -logger => $var_log; |
3dc9bd3c |
396 | |
397 | =head1 A WORK IN PROGRESS |
398 | |
399 | This module is certainly not complete, but we will not break the interface |
400 | lightly, so I would say it's safe to use in production code. The main result |
401 | from that at this point is that doing: |
402 | |
403 | use Log::Contextual; |
404 | |
405 | will die as we do not yet know what the defaults should be. If it turns out |
406 | that nearly everyone uses the C<:log> tag and C<:dlog> is really rare, we'll |
9b8e24d5 |
407 | probably make C<:log> the default. But only time and usage will tell. |
2daff231 |
408 | |
409 | =head1 FUNCTIONS |
410 | |
411 | =head2 set_logger |
412 | |
413 | my $logger = WarnLogger->new; |
21431192 |
414 | set_logger $logger; |
415 | |
0e13e261 |
416 | Arguments: C<Ref|CodeRef $returning_logger> |
2daff231 |
417 | |
21431192 |
418 | C<set_logger> will just set the current logger to whatever you pass it. It |
419 | expects a C<CodeRef>, but if you pass it something else it will wrap it in a |
420 | C<CodeRef> for you. |
2daff231 |
421 | |
422 | =head2 with_logger |
423 | |
424 | my $logger = WarnLogger->new; |
21431192 |
425 | with_logger $logger => sub { |
2daff231 |
426 | if (1 == 0) { |
427 | log_fatal { 'Non Logical Universe Detected' }; |
428 | } else { |
429 | log_info { 'All is good' }; |
430 | } |
80c3e48b |
431 | }; |
2daff231 |
432 | |
0e13e261 |
433 | Arguments: C<Ref|CodeRef $returning_logger, CodeRef $to_execute> |
2daff231 |
434 | |
21431192 |
435 | C<with_logger> sets the logger for the scope of the C<CodeRef> C<$to_execute>. |
0e13e261 |
436 | As with L</set_logger>, C<with_logger> will wrap C<$returning_logger> with a |
21431192 |
437 | C<CodeRef> if needed. |
2daff231 |
438 | |
21431192 |
439 | =head2 log_$level |
2daff231 |
440 | |
0e13e261 |
441 | Import Tag: C<:log> |
3dc9bd3c |
442 | |
0e13e261 |
443 | Arguments: C<CodeRef $returning_message, @args> |
2daff231 |
444 | |
21431192 |
445 | All of the following six functions work the same except that a different method |
446 | is called on the underlying C<$logger> object. The basic pattern is: |
2daff231 |
447 | |
0e13e261 |
448 | sub log_$level (&@) { |
21431192 |
449 | if ($logger->is_$level) { |
0e13e261 |
450 | $logger->$level(shift->(@_)); |
21431192 |
451 | } |
0e13e261 |
452 | @_ |
21431192 |
453 | } |
2daff231 |
454 | |
0e13e261 |
455 | Note that the function returns it's arguments. This can be used in a number of |
456 | ways, but often it's convenient just for partial inspection of passthrough data |
457 | |
458 | my @friends = log_trace { |
459 | 'friends list being generated, data from first friend: ' . |
460 | Dumper($_[0]->TO_JSON) |
461 | } generate_friend_list(); |
462 | |
463 | If you want complete inspection of passthrough data, take a look at the |
464 | L</Dlog_$level> functions. |
465 | |
21431192 |
466 | =head3 log_trace |
2daff231 |
467 | |
21431192 |
468 | log_trace { 'entered method foo with args ' join q{,}, @args }; |
2daff231 |
469 | |
21431192 |
470 | =head3 log_debug |
2daff231 |
471 | |
21431192 |
472 | log_debug { 'entered method foo' }; |
2daff231 |
473 | |
21431192 |
474 | =head3 log_info |
2daff231 |
475 | |
21431192 |
476 | log_info { 'started process foo' }; |
2daff231 |
477 | |
21431192 |
478 | =head3 log_warn |
2daff231 |
479 | |
21431192 |
480 | log_warn { 'possible misconfiguration at line 10' }; |
2daff231 |
481 | |
21431192 |
482 | =head3 log_error |
2daff231 |
483 | |
21431192 |
484 | log_error { 'non-numeric user input!' }; |
2daff231 |
485 | |
21431192 |
486 | =head3 log_fatal |
2daff231 |
487 | |
488 | log_fatal { '1 is never equal to 0!' }; |
489 | |
0e13e261 |
490 | =head2 logS_$level |
491 | |
492 | Import Tag: C<:log> |
493 | |
494 | Arguments: C<CodeRef $returning_message, Item $arg> |
495 | |
496 | This is really just a special case of the L</log_$level> functions. It forces |
497 | scalar context when that is what you need. Other than that it works exactly |
498 | same: |
499 | |
500 | my $friend = logS_trace { |
501 | 'I only have one friend: ' . Dumper($_[0]->TO_JSON) |
502 | } friend(); |
503 | |
504 | See also: L</DlogS_$level>. |
505 | |
21431192 |
506 | =head2 Dlog_$level |
507 | |
0e13e261 |
508 | Import Tag: C<:dlog> |
3dc9bd3c |
509 | |
0e13e261 |
510 | Arguments: C<CodeRef $returning_message, @args> |
2daff231 |
511 | |
0e13e261 |
512 | All of the following six functions work the same as their L</log_$level> |
9b8e24d5 |
513 | brethren, except they return what is passed into them and put the stringified |
21431192 |
514 | (with L<Data::Dumper::Concise>) version of their args into C<$_>. This means |
515 | you can do cool things like the following: |
516 | |
517 | my @nicks = Dlog_debug { "names: $_" } map $_->value, $frew->names->all; |
518 | |
519 | and the output might look something like: |
520 | |
521 | names: "fREW" |
522 | "fRIOUX" |
523 | "fROOH" |
524 | "fRUE" |
525 | "fiSMBoC" |
526 | |
527 | =head3 Dlog_trace |
528 | |
9b8e24d5 |
529 | my ($foo, $bar) = Dlog_trace { "entered method foo with args: $_" } @_; |
21431192 |
530 | |
531 | =head3 Dlog_debug |
532 | |
533 | Dlog_debug { "random data structure: $_" } { foo => $bar }; |
534 | |
535 | =head3 Dlog_info |
536 | |
537 | return Dlog_info { "html from method returned: $_" } "<html>...</html>"; |
538 | |
539 | =head3 Dlog_warn |
540 | |
541 | Dlog_warn { "probably invalid value: $_" } $foo; |
542 | |
543 | =head3 Dlog_error |
544 | |
545 | Dlog_error { "non-numeric user input! ($_)" } $port; |
2daff231 |
546 | |
21431192 |
547 | =head3 Dlog_fatal |
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548 | |
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549 | Dlog_fatal { '1 is never equal to 0!' } 'ZOMG ZOMG' if 1 == 0; |
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550 | |
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551 | =head2 DlogS_$level |
552 | |
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553 | Import Tag: C<:dlog> |
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554 | |
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555 | Arguments: C<CodeRef $returning_message, Item $arg> |
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556 | |
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557 | Like L</logS_$level>, these functions are a special case of L</Dlog_$level>. |
558 | They only take a single scalar after the C<$returning_message> instead of |
559 | slurping up (and also setting C<wantarray>) all the C<@args> |
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560 | |
561 | my $pals_rs = DlogS_debug { "pals resultset: $_" } |
562 | $schema->resultset('Pals')->search({ perlers => 1 }); |
563 | |
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564 | =head1 LOGGER INTERFACE |
565 | |
566 | Because this module is ultimately pretty looking glue (glittery?) with the |
567 | awesome benefit of the Contextual part, users will often want to make their |
568 | favorite logger work with it. The following are the methods that should be |
569 | implemented in the logger: |
570 | |
571 | is_trace |
572 | is_debug |
573 | is_info |
574 | is_warn |
575 | is_error |
576 | is_fatal |
577 | trace |
578 | debug |
579 | info |
580 | warn |
581 | error |
582 | fatal |
583 | |
584 | The first six merely need to return true if that level is enabled. The latter |
585 | six take the results of whatever the user returned from their coderef and log |
586 | them. For a basic example see L<Log::Contextual::SimpleLogger>. |
587 | |
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588 | =head1 AUTHOR |
589 | |
590 | frew - Arthur Axel "fREW" Schmidt <frioux@gmail.com> |
591 | |
592 | =head1 DESIGNER |
593 | |
594 | mst - Matt S. Trout <mst@shadowcat.co.uk> |
595 | |
596 | =head1 COPYRIGHT |
597 | |
598 | Copyright (c) 2010 the Log::Contextual L</AUTHOR> and L</DESIGNER> as listed |
599 | above. |
600 | |
601 | =head1 LICENSE |
602 | |
603 | This library is free software and may be distributed under the same terms as |
604 | Perl 5 itself. |
605 | |
606 | =cut |
607 | |