149 lines
3.9 KiB
Factor
149 lines
3.9 KiB
Factor
! Copyright (C) 2003, 2008 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: logging.server sequences namespaces concurrency.messaging
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words kernel arrays shuffle tools.annotations
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prettyprint.config prettyprint debugger io.streams.string
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splitting continuations effects generalizations parser strings
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quotations fry accessors math assocs math.order
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sequences.generalizations ;
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IN: logging
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SYMBOLS: DEBUG NOTICE WARNING ERROR CRITICAL ;
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SYMBOL: log-level
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log-level [ DEBUG ] initialize
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: log-levels ( -- assoc )
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H{
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{ DEBUG 0 }
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{ NOTICE 10 }
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{ WARNING 20 }
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{ ERROR 30 }
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{ CRITICAL 40 }
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} ;
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ERROR: undefined-log-level ;
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: log-level<=> ( log-level log-level -- ? )
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[ log-levels at* [ undefined-log-level ] unless ] compare ;
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: log? ( log-level -- ? )
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log-level get log-level<=> +lt+ = not ;
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: send-to-log-server ( array string -- )
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prefix "log-server" get send ;
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SYMBOL: log-service
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ERROR: bad-log-message-parameters msg word level ;
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: check-log-message ( msg word level -- msg word level )
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3dup [ string? ] [ word? ] [ word? ] tri* and and
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[ bad-log-message-parameters ] unless ; inline
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: log-message ( msg word level -- )
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check-log-message
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log-service get
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2dup [ log? ] [ ] bi* and [
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[ [ string-lines ] [ name>> ] [ name>> ] tri* ] dip
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4array "log-message" send-to-log-server
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] [
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4drop
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] if ;
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: rotate-logs ( -- )
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{ } "rotate-logs" send-to-log-server ;
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: close-logs ( -- )
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{ } "close-logs" send-to-log-server ;
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: with-logging ( service quot -- )
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[ log-service ] dip with-variable ; inline
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! Aspect-oriented programming idioms
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<PRIVATE
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: stack>message ( obj -- inputs>message )
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dup array? [ dup length 1 = [ first ] when ] when
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dup string? [
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[
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boa-tuples? on
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string-limit? off
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1 line-limit set
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3 nesting-limit set
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0 margin set
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unparse
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] with-scope
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] unless ;
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PRIVATE>
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: (define-logging) ( word level quot -- )
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[ dup ] 2dip 2curry annotate ; inline
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: call-logging-quot ( quot word level -- quot' )
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[ "called" ] 2dip [ log-message ] 3curry prepose ;
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: add-logging ( word level -- )
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[ call-logging-quot ] (define-logging) ;
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: log-stack ( n word level -- )
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log-service get [
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[ [ ndup ] keep narray stack>message ] 2dip log-message
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] [
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3drop
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] if ; inline
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: input# ( word -- n ) stack-effect in>> length ;
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: input-logging-quot ( quot word level -- quot' )
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rot [ [ input# ] keep ] 2dip '[ _ _ _ log-stack @ ] ;
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: add-input-logging ( word level -- )
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[ input-logging-quot ] (define-logging) ;
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: output# ( word -- n ) stack-effect out>> length ;
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: output-logging-quot ( quot word level -- quot' )
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[ [ output# ] keep ] dip '[ @ _ _ _ log-stack ] ;
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: add-output-logging ( word level -- )
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[ output-logging-quot ] (define-logging) ;
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: (log-error) ( object word level -- )
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log-service get [
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[ [ print-error ] with-string-writer ] 2dip log-message
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] [
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2drop rethrow
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] if ;
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: log-error ( error word -- ) ERROR (log-error) ;
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: log-critical ( error word -- ) CRITICAL (log-error) ;
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: stack-balancer ( effect -- quot )
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[ in>> length [ ndrop ] curry ]
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[ out>> length f <repetition> >quotation ]
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bi append ;
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: error-logging-quot ( quot word -- quot' )
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dup stack-effect stack-balancer
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'[ _ [ _ log-error @ ] recover ] ;
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: add-error-logging ( word level -- )
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[ [ input-logging-quot ] 2keep drop error-logging-quot ]
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(define-logging) ;
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SYNTAX: LOG:
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#! Syntax: name level
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scan-new-word dup scan-word
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'[ 1array stack>message _ _ log-message ]
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( message -- ) define-declared ;
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USE: vocabs
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"logging.parser" require
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"logging.analysis" require
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