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App-CELL-0.159
River stage one • 5 direct dependents • 5 total dependents
/ App::CELL

NAME

App::CELL - Configuration, Error-handling, Localization, and Logging

VERSION

Version 0.159

SYNOPSIS

    # imagine you have a script/app called 'foo' . . . 

    use Log::Any::Adapter ( 'File', "/var/tmp/foo.log" );
    use App::CELL qw( $CELL $log $meta $site );

    # load config params and messages from sitedir
    my $status = $CELL->load( appname => 'foo', 
                              sitedir => '/etc/foo' );
    return $status unless $status->ok;

    # write to the log
    $log->notice("Configuration loaded from /etc/foo");

    # get value of site configuration parameter FOO_PARAM
    my $val = $site->FOO_PARAM;

    # get a list of all supported languages
    my @supp_lang = $CELL->supported_languages;

    # determine if a language is supported
    print "sk supported" if $CELL->language_supported('sk');

    # get message object and text in default language
    my $fmsg = $CELL->msg('FOO_INFO_MSG');
    my $text = $fmsg->text;

    # get message object and text in default language
    # (message that takes arguments)
    $fmsg = $CELL->msg('BAR_ARGS_MSG', "arg1", "arg2");
    print $fmsg->text, "\n";

    # get text of message in a different language
    my $sk_text = $fmsg->lang('sk')->text;

DESCRIPTION

This is the top-level module of App::CELL, the Configuration, Error-handling, Localization, and Logging framework for applications (or scripts) written in Perl.

For details, read the POD in the App::CELL distro. For an introduction, read App::CELL::Guide.

EXPORTS

This module provides the following exports:

$CELL - App::CELL singleton object
$log - App::CELL::Log singleton object
$meta - App::CELL::Config singleton object
$core - App::CELL::Config singleton object
$site - App::CELL::Config singleton object

METHODS

appname

Get the appname attribute, i.e. the name of the application or script that is using App::CELL for its configuration, error handling, etc.

enviro

Get the enviro attribute, i.e. the name of the environment variable containing the sitedir

loaded

Get the current load status, which can be any of the following: 0 nothing loaded yet 'SHARE' sharedir loaded 'BOTH' sharedir _and_ sitedir loaded

sharedir

Get the sharedir attribute, i.e. the full path of the site configuration directory (available only after sharedir has been successfully loaded)

sitedir

Get the sitedir attribute, i.e. the full path of the site configuration directory (available only after sitedir has been successfully loaded)

supported_languages

Get list of supported languages. Equivalent to:

    $site->CELL_SUPPORTED_LANGUAGES || [ 'en ]

language_supported

Determine if a given language is supported.

load

Attempt to load messages and configuration parameters from the sharedir and, possibly, the sitedir as well.

Takes: a PARAMHASH that should include appname and at least one of enviro or sitedir (if both are given, enviro takes precedence with sitedir as a fallback).

Returns: an App::CELL::Status object, which could be any of the following: OK success WARN previous call already succeeded, nothing to do ERR failure

On success, it also sets the CELL_META_START_DATETIME meta parameter.

Status constructors

The following "factory" makes a bunch of status constructor methods (wrappers for App::CELL::Status->new )

status_crit

Constructor for 'CRIT' status objects

status_critical

Constructor for 'CRIT' status objects

status_debug

Constructor for 'DEBUG' status objects

status_emergency

Constructor for 'DEBUG' status objects

status_err

Constructor for 'ERR' status objects

status_error

Constructor for 'ERR' status objects

status_fatal

Constructor for 'FATAL' status objects

status_info

Constructor for 'INFO' status objects

status_inform

Constructor for 'INFORM' status objects

status_not_ok

Constructor for 'NOT_OK' status objects

status_notice

Constructor for 'NOTICE' status objects

status_ok

Constructor for 'OK' status objects

status_trace

Constructor for 'TRACE' status objects

status_warn

Constructor for 'WARN' status objects

status_warning

Constructor for 'WARNING' status objects

msg

Construct a message object (wrapper for App::CELL::Message::new)

COPYRIGHT AND LICENSE

App::CELL is Copyright (C) 2014, SUSE LLC

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

Author: Nathan Cutler mailto:presnypreklad@gmail.com

    If the above link doesn't work for any reason, the full text of the license
    can also be found in the "LICENSE" file, located in the top-level directory 
    of the App::CELL distro (i.e. in the same directory where this README file 
    is located)