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Log::Message::Simple.3pm

NAME

Log::Message::Simple - Simplified interface to Log::Message

SYNOPSIS

     use Log::Message::Simple qw[msg error debug
                                 carp croak cluck confess];
 
     use Log::Message::Simple qw[:STD :CARP];
 
     ### standard reporting functionality
     msg(    "Connecting to database",           $verbose );
     error(  "Database connection failed: $@",   $verbose );
     debug(  "Connection arguments were: $args", $debug );
 
     ### standard carp functionality
     carp(   "Wrong arguments passed: @_" );
     croak(  "Fatal: wrong arguments passed: @_" );
     cluck(  "Wrong arguments passed -- including stacktrace: @_" );
     confess("Fatal: wrong arguments passed -- including stacktrace: @_" );
 
     ### retrieve individual message
     my @stack = Log::Message::Simple->stack;
     my @stack = Log::Message::Simple->flush;
 
     ### retrieve the entire stack in printable form
     my $msgs  = Log::Message::Simple->stack_as_string;
     my $trace = Log::Message::Simple->stack_as_string(1);
 
     ### redirect output
     local $Log::Message::Simple::MSG_FH     = \*STDERR;
     local $Log::Message::Simple::ERROR_FH   = \*STDERR;
     local $Log::Message::Simple::DEBUG_FH   = \*STDERR;
     
     ### force a stacktrace on error
     local $Log::Message::Simple::STACKTRACE_ON_ERROR = 1
 
 

DESCRIPTION

This module provides standardized logging facilities using the "Log::Message" module.

FUNCTIONS

msg(message string [,VERBOSE])

Records a message on the stack, and prints it to "STDOUT" (or actually $MSG_FH, see the "GLOBAL VARIABLES" section below), if the "VERBOSE" option is true. The "VERBOSE" option defaults to false.

Exported by default, or using the ":STD" tag.

debug(message string [,VERBOSE])

Records a debug message on the stack, and prints it to "STDOUT" (or actually $DEBUG_FH, see the "GLOBAL VARIABLES" section below), if the "VERBOSE" option is true. The "VERBOSE" option defaults to false.

Exported by default, or using the ":STD" tag.

error(error string [,VERBOSE])

Records an error on the stack, and prints it to "STDERR" (or actually $ERROR_FH, see the "GLOBAL VARIABLES" sections below), if the "VERBOSE" option is true. The "VERBOSE" options defaults to true.

Exported by default, or using the ":STD" tag.

carp();

Provides functionality equal to "Carp::carp()" while still logging to the stack.

Exported by using the ":CARP" tag.

croak();

Provides functionality equal to "Carp::croak()" while still logging to the stack.

Exported by using the ":CARP" tag.

confess();

Provides functionality equal to "Carp::confess()" while still logging to the stack.

Exported by using the ":CARP" tag.

cluck();

Provides functionality equal to "Carp::cluck()" while still logging to the stack.

Exported by using the ":CARP" tag.

CLASS METHODS

Log::Message::Simple->stack()

Retrieves all the items on the stack. Since "Log::Message::Simple" is implemented using "Log::Message", consult its manpage for the function "retrieve" to see what is returned and how to use the items.

Log::Message::Simple->stack_as_string([TRACE])

Returns the whole stack as a printable string. If the "TRACE" option is true all items are returned with "Carp::longmess" output, rather than just the message. "TRACE" defaults to false.

Log::Message::Simple->flush()

Removes all the items from the stack and returns them. Since "Log::Message::Simple" is implemented using "Log::Message", consult its manpage for the function "retrieve" to see what is returned and how to use the items.

GLOBAL VARIABLES

$ERROR_FH

This is the filehandle all the messages sent to "error()" are being printed. This defaults to *STDERR.

$MSG_FH

This is the filehandle all the messages sent to "msg()" are being printed. This default to *STDOUT.

$DEBUG_FH

This is the filehandle all the messages sent to "debug()" are being printed. This default to *STDOUT.

$STACKTRACE_ON_ERROR

If this option is set to "true", every call to "error()" will generate a stacktrace using "Carp::shortmess()". Defaults to "false"