Commit | Line | Data |
5d8f2b84 |
1 | # add example for Log::Dispatchouli |
5d8f2b84 |
2 | # |
5d8f2b84 |
3 | # make basic warn logger |
4 | |
5 | |
0daa11f3 |
6 | package Log::Contextual; |
7 | |
a2777569 |
8 | use strict; |
9 | use warnings; |
2033c911 |
10 | |
1b3aa6c8 |
11 | our $VERSION = '0.00101'; |
2033c911 |
12 | |
13 | require Exporter; |
f11f9542 |
14 | use Data::Dumper::Concise; |
5b094c87 |
15 | use Scalar::Util 'blessed'; |
2033c911 |
16 | |
a2777569 |
17 | BEGIN { our @ISA = qw(Exporter) } |
2033c911 |
18 | |
9b8e24d5 |
19 | my @dlog = (qw( |
f11f9542 |
20 | Dlog_debug DlogS_debug |
21 | Dlog_trace DlogS_trace |
22 | Dlog_warn DlogS_warn |
23 | Dlog_info DlogS_info |
24 | Dlog_error DlogS_error |
25 | Dlog_fatal DlogS_fatal |
9b8e24d5 |
26 | )); |
f11f9542 |
27 | |
9b8e24d5 |
28 | my @log = (qw( |
9061df76 |
29 | log_debug logS_debug |
30 | log_trace logS_trace |
31 | log_warn logS_warn |
32 | log_info logS_info |
33 | log_error logS_error |
34 | log_fatal logS_fatal |
9b8e24d5 |
35 | )); |
f11f9542 |
36 | |
a2777569 |
37 | our @EXPORT_OK = ( |
f11f9542 |
38 | @dlog, @log, |
9b8e24d5 |
39 | qw( set_logger with_logger ) |
f11f9542 |
40 | ); |
41 | |
a2777569 |
42 | our %EXPORT_TAGS = ( |
f11f9542 |
43 | dlog => \@dlog, |
44 | log => \@log, |
3dc9bd3c |
45 | all => [@dlog, @log], |
f11f9542 |
46 | ); |
47 | |
48 | sub import { |
a2777569 |
49 | my $package = shift; |
f11f9542 |
50 | die 'Log::Contextual does not have a default import list' |
a2777569 |
51 | unless @_; |
52 | |
53 | for my $idx ( 0 .. $#_ ) { |
54 | if ( $_[$idx] eq '-logger' ) { |
55 | set_logger($_[$idx + 1]); |
56 | splice @_, $idx, 2; |
06e908c3 |
57 | } elsif ( $_[$idx] eq '-default_logger' ) { |
58 | set_default_logger_for(scalar caller, $_[$idx + 1]); |
59 | splice @_, $idx, 2; |
a2777569 |
60 | } |
61 | } |
62 | $package->export_to_level(1, $package, @_); |
f11f9542 |
63 | } |
2033c911 |
64 | |
7cec609c |
65 | our $Get_Logger; |
5d8f2b84 |
66 | our %Default_Logger; |
67 | |
06e908c3 |
68 | sub _set_default_logger_for { $Default_Logger{$_[0]} = $_[1] } |
69 | |
5d8f2b84 |
70 | sub _get_logger($) { |
71 | my $package = shift; |
72 | ( |
73 | $Get_Logger || |
74 | $Default_Logger{$package} || |
75 | die q( no logger set! you can't try to log something without a logger! ) |
06e908c3 |
76 | )->($package); |
5d8f2b84 |
77 | } |
7cec609c |
78 | |
8dc5a747 |
79 | sub set_logger { |
80 | my $logger = $_[0]; |
5b094c87 |
81 | if(ref $logger ne 'CODE') { |
82 | die 'logger was not a CodeRef or a logger object. Please try again.' |
83 | unless blessed($logger); |
84 | $logger = do { my $l = $logger; sub { $l } } |
85 | } |
5d8f2b84 |
86 | |
87 | warn 'set_logger (or -logger) called more than once! This is a bad idea!' |
88 | if $Get_Logger; |
8dc5a747 |
89 | $Get_Logger = $logger; |
7cec609c |
90 | } |
91 | |
98833ffb |
92 | sub with_logger { |
93 | my $logger = $_[0]; |
5b094c87 |
94 | if(ref $logger ne 'CODE') { |
95 | die 'logger was not a CodeRef or a logger object. Please try again.' |
96 | unless blessed($logger); |
97 | $logger = do { my $l = $logger; sub { $l } } |
98 | } |
98833ffb |
99 | local $Get_Logger = $logger; |
80c3e48b |
100 | $_[1]->(); |
2daff231 |
101 | } |
102 | |
a4273dbf |
103 | |
104 | |
4d8ea78d |
105 | sub log_trace (&@) { |
5d8f2b84 |
106 | my $log = _get_logger( caller ); |
4d8ea78d |
107 | my $code = shift; |
108 | $log->trace($code->(@_)) |
6dc6632a |
109 | if $log->is_trace; |
4d8ea78d |
110 | @_ |
6dc6632a |
111 | } |
112 | |
4d8ea78d |
113 | sub log_debug (&@) { |
5d8f2b84 |
114 | my $log = _get_logger( caller ); |
4d8ea78d |
115 | my $code = shift; |
116 | $log->debug($code->(@_)) |
7cec609c |
117 | if $log->is_debug; |
4d8ea78d |
118 | @_ |
7cec609c |
119 | } |
120 | |
4d8ea78d |
121 | sub log_info (&@) { |
5d8f2b84 |
122 | my $log = _get_logger( caller ); |
4d8ea78d |
123 | my $code = shift; |
124 | $log->info($code->(@_)) |
6dc6632a |
125 | if $log->is_info; |
4d8ea78d |
126 | @_ |
6dc6632a |
127 | } |
128 | |
4d8ea78d |
129 | sub log_warn (&@) { |
5d8f2b84 |
130 | my $log = _get_logger( caller ); |
4d8ea78d |
131 | my $code = shift; |
132 | $log->warn($code->(@_)) |
6dc6632a |
133 | if $log->is_warn; |
4d8ea78d |
134 | @_ |
6dc6632a |
135 | } |
136 | |
4d8ea78d |
137 | sub log_error (&@) { |
5d8f2b84 |
138 | my $log = _get_logger( caller ); |
4d8ea78d |
139 | my $code = shift; |
140 | $log->error($code->(@_)) |
6dc6632a |
141 | if $log->is_error; |
4d8ea78d |
142 | @_ |
6dc6632a |
143 | } |
144 | |
4d8ea78d |
145 | sub log_fatal (&@) { |
5d8f2b84 |
146 | my $log = _get_logger( caller ); |
4d8ea78d |
147 | my $code = shift; |
148 | $log->fatal($code->(@_)) |
6dc6632a |
149 | if $log->is_fatal; |
4d8ea78d |
150 | @_ |
6dc6632a |
151 | } |
152 | |
f11f9542 |
153 | |
709d11fe |
154 | sub logS_trace (&$) { |
5d8f2b84 |
155 | my $log = _get_logger( caller ); |
709d11fe |
156 | my $code = shift; |
157 | my $value = shift; |
158 | $log->trace($code->($value)) |
159 | if $log->is_trace; |
160 | $value |
161 | } |
162 | |
163 | sub logS_debug (&$) { |
5d8f2b84 |
164 | my $log = _get_logger( caller ); |
709d11fe |
165 | my $code = shift; |
166 | my $value = shift; |
167 | $log->debug($code->($value)) |
168 | if $log->is_debug; |
169 | $value |
170 | } |
171 | |
172 | sub logS_info (&$) { |
5d8f2b84 |
173 | my $log = _get_logger( caller ); |
709d11fe |
174 | my $code = shift; |
175 | my $value = shift; |
176 | $log->info($code->($value)) |
177 | if $log->is_info; |
178 | $value |
179 | } |
180 | |
181 | sub logS_warn (&$) { |
5d8f2b84 |
182 | my $log = _get_logger( caller ); |
709d11fe |
183 | my $code = shift; |
184 | my $value = shift; |
185 | $log->warn($code->($value)) |
186 | if $log->is_warn; |
187 | $value |
188 | } |
189 | |
190 | sub logS_error (&$) { |
5d8f2b84 |
191 | my $log = _get_logger( caller ); |
709d11fe |
192 | my $code = shift; |
193 | my $value = shift; |
194 | $log->error($code->($value)) |
195 | if $log->is_error; |
196 | $value |
197 | } |
198 | |
199 | sub logS_fatal (&$) { |
5d8f2b84 |
200 | my $log = _get_logger( caller ); |
709d11fe |
201 | my $code = shift; |
202 | my $value = shift; |
203 | $log->fatal($code->($value)) |
204 | if $log->is_fatal; |
205 | $value |
206 | } |
207 | |
208 | |
f11f9542 |
209 | |
210 | sub Dlog_trace (&@) { |
211 | my $code = shift; |
212 | my @values = @_; |
5a1c7d54 |
213 | return log_trace { |
db70b0a5 |
214 | if (@values) { |
215 | do { local $_ = Data::Dumper::Concise::Dumper @values; $code->() }; |
216 | } else { |
217 | do { local $_ = '()'; $code->() }; |
218 | } |
5a1c7d54 |
219 | } @values |
f11f9542 |
220 | } |
221 | |
a4273dbf |
222 | sub Dlog_debug (&@) { |
223 | my $code = shift; |
224 | my @values = @_; |
225 | log_debug { |
db70b0a5 |
226 | if (@values) { |
227 | do { local $_ = Data::Dumper::Concise::Dumper @values; $code->() }; |
228 | } else { |
229 | do { local $_ = '()'; $code->() }; |
230 | } |
a4273dbf |
231 | } @values |
232 | } |
233 | |
234 | sub Dlog_info (&@) { |
235 | my $code = shift; |
236 | my @values = @_; |
237 | log_info { |
db70b0a5 |
238 | if (@values) { |
239 | do { local $_ = Data::Dumper::Concise::Dumper @values; $code->() }; |
240 | } else { |
241 | do { local $_ = '()'; $code->() }; |
242 | } |
a4273dbf |
243 | } @values |
244 | } |
245 | |
246 | sub Dlog_warn (&@) { |
247 | my $code = shift; |
248 | my @values = @_; |
249 | log_warn { |
db70b0a5 |
250 | if (@values) { |
251 | do { local $_ = Data::Dumper::Concise::Dumper @values; $code->() }; |
252 | } else { |
253 | do { local $_ = '()'; $code->() }; |
254 | } |
a4273dbf |
255 | } @values |
256 | } |
257 | |
258 | sub Dlog_error (&@) { |
259 | my $code = shift; |
260 | my @values = @_; |
261 | log_error { |
db70b0a5 |
262 | if (@values) { |
263 | do { local $_ = Data::Dumper::Concise::Dumper @values; $code->() }; |
264 | } else { |
265 | do { local $_ = '()'; $code->() }; |
266 | } |
a4273dbf |
267 | } @values |
268 | } |
269 | |
270 | sub Dlog_fatal (&@) { |
271 | my $code = shift; |
272 | my @values = @_; |
273 | log_fatal { |
db70b0a5 |
274 | if (@values) { |
275 | do { local $_ = Data::Dumper::Concise::Dumper @values; $code->() }; |
276 | } else { |
277 | do { local $_ = '()'; $code->() }; |
278 | } |
a4273dbf |
279 | } @values |
280 | } |
281 | |
282 | |
283 | |
f11f9542 |
284 | sub DlogS_trace (&$) { |
285 | my $code = $_[0]; |
286 | my $value = $_[1]; |
709d11fe |
287 | logS_trace { |
f11f9542 |
288 | do { local $_ = Data::Dumper::Concise::Dumper $value; $code->() }; |
709d11fe |
289 | } $value |
f11f9542 |
290 | } |
291 | |
f11f9542 |
292 | sub DlogS_debug (&$) { |
293 | my $code = $_[0]; |
294 | my $value = $_[1]; |
709d11fe |
295 | logS_debug { |
f11f9542 |
296 | do { local $_ = Data::Dumper::Concise::Dumper $value; $code->() }; |
709d11fe |
297 | } $value |
f11f9542 |
298 | } |
299 | |
f11f9542 |
300 | sub DlogS_info (&$) { |
301 | my $code = $_[0]; |
302 | my $value = $_[1]; |
709d11fe |
303 | logS_info { |
f11f9542 |
304 | do { local $_ = Data::Dumper::Concise::Dumper $value; $code->() }; |
709d11fe |
305 | } $value |
f11f9542 |
306 | } |
307 | |
f11f9542 |
308 | sub DlogS_warn (&$) { |
309 | my $code = $_[0]; |
310 | my $value = $_[1]; |
709d11fe |
311 | logS_warn { |
f11f9542 |
312 | do { local $_ = Data::Dumper::Concise::Dumper $value; $code->() }; |
709d11fe |
313 | } $value |
f11f9542 |
314 | } |
315 | |
f11f9542 |
316 | sub DlogS_error (&$) { |
317 | my $code = $_[0]; |
318 | my $value = $_[1]; |
709d11fe |
319 | logS_error { |
f11f9542 |
320 | do { local $_ = Data::Dumper::Concise::Dumper $value; $code->() }; |
709d11fe |
321 | } $value |
f11f9542 |
322 | } |
323 | |
f11f9542 |
324 | sub DlogS_fatal (&$) { |
325 | my $code = $_[0]; |
326 | my $value = $_[1]; |
709d11fe |
327 | logS_fatal { |
f11f9542 |
328 | do { local $_ = Data::Dumper::Concise::Dumper $value; $code->() }; |
709d11fe |
329 | } $value |
f11f9542 |
330 | } |
331 | |
0daa11f3 |
332 | 1; |
0a3750e2 |
333 | |
334 | __END__ |
335 | |
2daff231 |
336 | =head1 NAME |
337 | |
8bc568d2 |
338 | Log::Contextual - Simple logging interface with a contextual log |
2daff231 |
339 | |
340 | =head1 SYNOPSIS |
341 | |
9b8e24d5 |
342 | use Log::Contextual qw( :log :dlog set_logger with_logger ); |
5b094c87 |
343 | use Log::Contextual::SimpleLogger; |
344 | use Log::Log4perl ':easy'; |
345 | Log::Log4perl->easy_init($DEBUG); |
2daff231 |
346 | |
2daff231 |
347 | |
5b094c87 |
348 | my $logger = Log::Log4perl->get_logger; |
349 | |
350 | set_logger $logger; |
2daff231 |
351 | |
9b8e24d5 |
352 | log_debug { 'program started' }; |
2daff231 |
353 | |
354 | sub foo { |
9b8e24d5 |
355 | with_logger(Log::Contextual::SimpleLogger->new({ |
356 | levels => [qw( trace debug )] |
21431192 |
357 | }) => sub { |
358 | log_trace { 'foo entered' }; |
9b8e24d5 |
359 | my ($foo, $bar) = Dlog_trace { "params for foo: $_" } @_; |
2daff231 |
360 | # ... |
21431192 |
361 | log_trace { 'foo left' }; |
9b8e24d5 |
362 | }); |
2daff231 |
363 | } |
364 | |
5b094c87 |
365 | foo(); |
366 | |
2daff231 |
367 | =head1 DESCRIPTION |
368 | |
3dc9bd3c |
369 | This module is a simple interface to extensible logging. It is bundled with a |
370 | really basic logger, L<Log::Contextual::SimpleLogger>, but in general you |
371 | should use a real logger instead of that. For something more serious but not |
372 | overly complicated, take a look at L<Log::Dispatchouli>. |
373 | |
374 | =head1 OPTIONS |
375 | |
376 | When you import this module you may use C<-logger> as a shortcut for |
377 | L<set_logger>, for example: |
378 | |
379 | use Log::Contextual::SimpleLogger; |
9b8e24d5 |
380 | use Log::Contextual qw( :dlog ), |
381 | -logger => Log::Contextual::SimpleLogger->new({ levels => [qw( debug )] }); |
3dc9bd3c |
382 | |
383 | sometimes you might want to have the logger handy for other stuff, in which |
384 | case you might try something like the following: |
385 | |
386 | my $var_log; |
387 | BEGIN { $var_log = VarLogger->new } |
9b8e24d5 |
388 | use Log::Contextual qw( :dlog ), -logger => $var_log; |
3dc9bd3c |
389 | |
390 | =head1 A WORK IN PROGRESS |
391 | |
392 | This module is certainly not complete, but we will not break the interface |
393 | lightly, so I would say it's safe to use in production code. The main result |
394 | from that at this point is that doing: |
395 | |
396 | use Log::Contextual; |
397 | |
398 | will die as we do not yet know what the defaults should be. If it turns out |
399 | that nearly everyone uses the C<:log> tag and C<:dlog> is really rare, we'll |
9b8e24d5 |
400 | probably make C<:log> the default. But only time and usage will tell. |
2daff231 |
401 | |
402 | =head1 FUNCTIONS |
403 | |
404 | =head2 set_logger |
405 | |
406 | my $logger = WarnLogger->new; |
21431192 |
407 | set_logger $logger; |
408 | |
0e13e261 |
409 | Arguments: C<Ref|CodeRef $returning_logger> |
2daff231 |
410 | |
21431192 |
411 | C<set_logger> will just set the current logger to whatever you pass it. It |
412 | expects a C<CodeRef>, but if you pass it something else it will wrap it in a |
06e908c3 |
413 | C<CodeRef> for you. C<set_logger> is really meant only to be called from a |
414 | top-level script. To avoid foot-shooting the function will warn if you call it |
415 | more than once. |
2daff231 |
416 | |
417 | =head2 with_logger |
418 | |
419 | my $logger = WarnLogger->new; |
21431192 |
420 | with_logger $logger => sub { |
2daff231 |
421 | if (1 == 0) { |
422 | log_fatal { 'Non Logical Universe Detected' }; |
423 | } else { |
424 | log_info { 'All is good' }; |
425 | } |
80c3e48b |
426 | }; |
2daff231 |
427 | |
0e13e261 |
428 | Arguments: C<Ref|CodeRef $returning_logger, CodeRef $to_execute> |
2daff231 |
429 | |
21431192 |
430 | C<with_logger> sets the logger for the scope of the C<CodeRef> C<$to_execute>. |
0e13e261 |
431 | As with L</set_logger>, C<with_logger> will wrap C<$returning_logger> with a |
21431192 |
432 | C<CodeRef> if needed. |
2daff231 |
433 | |
21431192 |
434 | =head2 log_$level |
2daff231 |
435 | |
0e13e261 |
436 | Import Tag: C<:log> |
3dc9bd3c |
437 | |
0e13e261 |
438 | Arguments: C<CodeRef $returning_message, @args> |
2daff231 |
439 | |
21431192 |
440 | All of the following six functions work the same except that a different method |
441 | is called on the underlying C<$logger> object. The basic pattern is: |
2daff231 |
442 | |
0e13e261 |
443 | sub log_$level (&@) { |
21431192 |
444 | if ($logger->is_$level) { |
0e13e261 |
445 | $logger->$level(shift->(@_)); |
21431192 |
446 | } |
0e13e261 |
447 | @_ |
21431192 |
448 | } |
2daff231 |
449 | |
0e13e261 |
450 | Note that the function returns it's arguments. This can be used in a number of |
451 | ways, but often it's convenient just for partial inspection of passthrough data |
452 | |
453 | my @friends = log_trace { |
454 | 'friends list being generated, data from first friend: ' . |
455 | Dumper($_[0]->TO_JSON) |
456 | } generate_friend_list(); |
457 | |
458 | If you want complete inspection of passthrough data, take a look at the |
459 | L</Dlog_$level> functions. |
460 | |
21431192 |
461 | =head3 log_trace |
2daff231 |
462 | |
21431192 |
463 | log_trace { 'entered method foo with args ' join q{,}, @args }; |
2daff231 |
464 | |
21431192 |
465 | =head3 log_debug |
2daff231 |
466 | |
21431192 |
467 | log_debug { 'entered method foo' }; |
2daff231 |
468 | |
21431192 |
469 | =head3 log_info |
2daff231 |
470 | |
21431192 |
471 | log_info { 'started process foo' }; |
2daff231 |
472 | |
21431192 |
473 | =head3 log_warn |
2daff231 |
474 | |
21431192 |
475 | log_warn { 'possible misconfiguration at line 10' }; |
2daff231 |
476 | |
21431192 |
477 | =head3 log_error |
2daff231 |
478 | |
21431192 |
479 | log_error { 'non-numeric user input!' }; |
2daff231 |
480 | |
21431192 |
481 | =head3 log_fatal |
2daff231 |
482 | |
483 | log_fatal { '1 is never equal to 0!' }; |
484 | |
0e13e261 |
485 | =head2 logS_$level |
486 | |
487 | Import Tag: C<:log> |
488 | |
489 | Arguments: C<CodeRef $returning_message, Item $arg> |
490 | |
491 | This is really just a special case of the L</log_$level> functions. It forces |
492 | scalar context when that is what you need. Other than that it works exactly |
493 | same: |
494 | |
495 | my $friend = logS_trace { |
496 | 'I only have one friend: ' . Dumper($_[0]->TO_JSON) |
497 | } friend(); |
498 | |
499 | See also: L</DlogS_$level>. |
500 | |
21431192 |
501 | =head2 Dlog_$level |
502 | |
0e13e261 |
503 | Import Tag: C<:dlog> |
3dc9bd3c |
504 | |
0e13e261 |
505 | Arguments: C<CodeRef $returning_message, @args> |
2daff231 |
506 | |
0e13e261 |
507 | All of the following six functions work the same as their L</log_$level> |
9b8e24d5 |
508 | brethren, except they return what is passed into them and put the stringified |
21431192 |
509 | (with L<Data::Dumper::Concise>) version of their args into C<$_>. This means |
510 | you can do cool things like the following: |
511 | |
512 | my @nicks = Dlog_debug { "names: $_" } map $_->value, $frew->names->all; |
513 | |
514 | and the output might look something like: |
515 | |
516 | names: "fREW" |
517 | "fRIOUX" |
518 | "fROOH" |
519 | "fRUE" |
520 | "fiSMBoC" |
521 | |
522 | =head3 Dlog_trace |
523 | |
9b8e24d5 |
524 | my ($foo, $bar) = Dlog_trace { "entered method foo with args: $_" } @_; |
21431192 |
525 | |
526 | =head3 Dlog_debug |
527 | |
528 | Dlog_debug { "random data structure: $_" } { foo => $bar }; |
529 | |
530 | =head3 Dlog_info |
531 | |
532 | return Dlog_info { "html from method returned: $_" } "<html>...</html>"; |
533 | |
534 | =head3 Dlog_warn |
535 | |
536 | Dlog_warn { "probably invalid value: $_" } $foo; |
537 | |
538 | =head3 Dlog_error |
539 | |
540 | Dlog_error { "non-numeric user input! ($_)" } $port; |
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541 | |
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542 | =head3 Dlog_fatal |
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543 | |
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544 | Dlog_fatal { '1 is never equal to 0!' } 'ZOMG ZOMG' if 1 == 0; |
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545 | |
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546 | =head2 DlogS_$level |
547 | |
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548 | Import Tag: C<:dlog> |
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549 | |
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550 | Arguments: C<CodeRef $returning_message, Item $arg> |
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551 | |
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552 | Like L</logS_$level>, these functions are a special case of L</Dlog_$level>. |
553 | They only take a single scalar after the C<$returning_message> instead of |
554 | slurping up (and also setting C<wantarray>) all the C<@args> |
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555 | |
556 | my $pals_rs = DlogS_debug { "pals resultset: $_" } |
557 | $schema->resultset('Pals')->search({ perlers => 1 }); |
558 | |
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559 | =head1 LOGGER INTERFACE |
560 | |
561 | Because this module is ultimately pretty looking glue (glittery?) with the |
562 | awesome benefit of the Contextual part, users will often want to make their |
563 | favorite logger work with it. The following are the methods that should be |
564 | implemented in the logger: |
565 | |
566 | is_trace |
567 | is_debug |
568 | is_info |
569 | is_warn |
570 | is_error |
571 | is_fatal |
572 | trace |
573 | debug |
574 | info |
575 | warn |
576 | error |
577 | fatal |
578 | |
579 | The first six merely need to return true if that level is enabled. The latter |
580 | six take the results of whatever the user returned from their coderef and log |
581 | them. For a basic example see L<Log::Contextual::SimpleLogger>. |
582 | |
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583 | =head1 AUTHOR |
584 | |
585 | frew - Arthur Axel "fREW" Schmidt <frioux@gmail.com> |
586 | |
587 | =head1 DESIGNER |
588 | |
589 | mst - Matt S. Trout <mst@shadowcat.co.uk> |
590 | |
591 | =head1 COPYRIGHT |
592 | |
593 | Copyright (c) 2010 the Log::Contextual L</AUTHOR> and L</DESIGNER> as listed |
594 | above. |
595 | |
596 | =head1 LICENSE |
597 | |
598 | This library is free software and may be distributed under the same terms as |
599 | Perl 5 itself. |
600 | |
601 | =cut |
602 | |