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NAME

Log::Handler::Config - The main config loader.

SYNOPSIS

    use Log::Handler;

    my $log = Log::Handler->new();

    # Config::General
    $log->config(config => 'file.conf');

    # Config::Properties
    $log->config(config => 'file.props');

    # YAML
    $log->config(config => 'file.yaml');

Or

    use Log::Handler;

    my $log = Log::Handler->new();

    $log->config(
        config => 'file.conf'
        plugin => 'YAML',
    );

DESCRIPTION

This module makes it possible to load the configuration from a file. The configuration type is determined by the file extension. It's also possible to mix file extensions with another configuration types.

PLUGINS

    Plugin name             File extensions
    ------------------------------------------
    Config::General         cfg, conf 
    Config::Properties      props, jcfg, jconf
    YAML                    yml, yaml

If the extension is not defined then Config::General is used by default.

METHODS

config()

With this method it's possible to load the configuration for your outputs.

The following options are valid:

config

With this option you can pass a file name or the configuration as a hash reference.

    $log->config(config => 'file.conf');
    # or
    $log->config(config => \%config);
plugin

With this option it's possible to say which plugin you want to use. Maybe you want to use the file extension conf with YAML, which is reserved for the plugin Config::General.

Examples:

    # this would use Config::General
    $log->config(
        config => 'file.conf'
    );

    # this would force .conf with YAML
    $log->config(
        config => 'file.conf',
        plugin => 'YAML'
    );
section

If you want to write the configuration into a global configuration file then you can create a own section for the logger:

    <logger>
        <file>
            <mylog>
                filename = file.log
                minlevel = 0
                maxlevel = 7
            </mylog>
        </file>
    </logger>

    <another_script_config>
        foo = bar
        bar = baz
        baz = foo
    </another_script_config>

Now your configuration is placed in the logger section. You can load this section with

    $log->config(
        config  => 'file.conf',
        section => 'logger',
    );

    # or if you load the configuration yourself to %config

    $log->config(
        config  => \%config,
        section => 'logger',
    );

    # or just

    $log->config( config => $config{logger} );

Note that the section mylog is used as an alias. Later you access the output with

    my $file_output = $log->output('mylog');

    $file_output->log(message => 'your message');

PLUGINS

    Config::General     -  inspired by the well known apache config format
    Config::Properties  -  Java-style property files
    YAML                -  optimized for human readability

EXAMPLES

Config structure

For each output it must exist an own section. Here a example as hash:

    my %config = (

        # the configuration for a file

        file => {
            foo => {
                filename => 'file1.log',
                maxlevel => 'info',
                minlevel => 'warn',
            },
            bar => {
                filename => 'file2.log',
                maxlevel => 'error',
                minlevel => 'emergency',
            }
        }

        # the configuration for email

        email => {
            baz =>
                host     => 'foo.example',
                from     => 'me@me.example',
                to       => 'you@foo.example',
                maxlevel => 'error',
                minlevel => 'emergency',
            },

            # and_so_on ...
        }
    );

You can store your configuration to a file and loads it. There are different config plugins available.

A default section

It's possible to define a section called default for each output. This options are used as default if this options are not set. Example:

    my %config = (
        # the configuration for a file
        file => {
            default => {
                mode     => 'append',
            },
            foo => {
                filename => 'file1.log',
                maxlevel => 'info',
                minlevel => 'warn',
            },
            bar => {
                filename => 'file2.log',
                maxlevel => 'error',
                minlevel => 'emergency',
            },
            baz => {
                filename => 'file3.log',
                maxlevel => 'debug',
                minlevel => 'debug',
                mode     => 'trunc',
            },
        },
        # the configuration for dbi
        dbi => {
            default => { ... }
        }
    );

The option mode is set to append for the log file file1.log and file2.log. The configuration for file3.log will be set to trunc.

Examples for the config plugins

Config::General

    <file>
        <mylog>
            fileopen = 1
            reopen = 1
            permissions = 0640
            maxlevel = info
            minlevel = warn
            mode = append
            timeformat = %b %d %H:%M:%S
            debug_mode = 2
            filename = example.log
            message_layout = '%T %H[%P] [%L] %S: %m'
            newline = 1
        </mylog>
    </file>

YAML

    ---
    file:
      mylog:
        debug_mode: 2
        filename: example.log
        fileopen: 1
        maxlevel: info
        minlevel: warn
        mode: append
        newline: 1
        permissions: 0640
        message_layout: '%T %H[%P] [%L] %S: %m'
        reopen: 1
        timeformat: '%b %d %H:%M:%S'

Config::Properties

    file.mylog.reopen = 1
    file.mylog.fileopen = 1
    file.mylog.maxlevel = info
    file.mylog.minlevel = warn
    file.mylog.permissions = 0640
    file.mylog.mode = append
    file.mylog.timeformat = %b %d %H:%M:%S
    file.mylog.debug_mode = 2
    file.mylog.filename = example.log
    file.mylog.newline = 1
    file.mylog.message_layout = '%T %H[%P] [%L] %S: %m'

Load the config from a certain section

The config (Config::General)

    <output>
        <file>
            <default>
                newline        = 1
                permissions    = 0640
                timeformat     = %b %d %H:%M:%S
                fileopen       = 1
                reopen         = 1
                mode           = append
                message_layout = "%T %H[%P] [%L] %S: %m"
                debug_mode     = 2
            </default>

            <common>
                filename = example.log
                maxlevel = info
                minlevel = warn
            </common>

            <error>
                filename = example-error.log
                maxlevel = warn
                minlevel = emergency
            </error>

            <debug>
                filename = example-debug.log
                maxlevel = debug
                minlevel = debug
            </debug>
        </file>
    </output>

Load the config

    $log->config(
        config  => 'file.conf',
        section => 'output',
    );

Simple configuration without a certain section

The config (Config::General)

    <file>
        <default>
            newline        = 1
            permissions    = 0640
            timeformat     = %b %d %H:%M:%S
            fileopen       = 1
            reopen         = 1
            mode           = append
            message_layout = "%T %H[%P] [%L] %S: $m"
            debug_mode     = 2
        </default>

        <common>
            filename = example.log
            maxlevel = info
            minlevel = warn
        </common>

        <error>
            filename = example-error.log
            maxlevel = warn
            minlevel = emergency
        </error>

        <debug>
            filename = example-debug.log
            maxlevel = debug
            minlevel = debug
        </debug>
    </file>

Load the config

    $log->config(config => 'file.conf');

The config as hash

    $log->config(
        config => {
            file => {
                default => {
                    newline        => 1,
                    permissions    => '0640',
                    timeformat     => '%b %d %H:%M:%S',
                    fileopen       => 1,
                    reopen         => 1,
                    mode           => 'append',
                    message_layout => '%T %H[%P] [%L] %S: %m',
                    debug_mode     => 2,
                },
                common => {
                    filename => 'example.log',
                    maxlevel => 'info',
                    minlevel => 'warn',
                },
                error => {
                    filename => 'example-error.log',
                    maxlevel => 'warn',
                    minlevel => 'emergency',
                },
                debug => {
                    filename => 'example-debug.log',
                    maxlevel => 'debug',
                    minlevel => 'debug',
                }
            }
        }
    );

Configuration for different outputs

    <output>
        <file>
            <default>
                newline        = 1
                permissions    = 0640
                timeformat     = %b %d %H:%M:%S
                fileopen       = 1
                reopen         = 1
                mode           = append
                message_layout = "%T %H[%P] [%L] %S: %m"
                debug_mode     = 2
            </default>

            <common>
                filename = example.log
                maxlevel = info
                minlevel = warn
            </common>

            <error>
                filename = example-error.log
                maxlevel = warn
                minlevel = emergency
            </error>
        </file>
    </output>

PREREQUISITES

    Carp
    Params::Validate
    UNIVERSAL::require

EXPORTS

No exports.

REPORT BUGS

Please report all bugs to <jschulz.cpan(at)bloonix.de>.

If you send me a mail then add Log::Handler into the subject.

AUTHOR

Jonny Schulz <jschulz.cpan(at)bloonix.de>.

COPYRIGHT

Copyright (C) 2007 by Jonny Schulz. All rights reserved.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.