hi all, I am doing some configuration to deploy Lemonldap：：NG,but there is some question confused me.

## @file
# Main portal for Lemonldap::NG portal

## @class
# Main portal for Lemonldap::NG portal
package Lemonldap::NG::Portal::SharedConf;

use strict;
use Lemonldap::NG::Portal::Simple qw(:all);
use Lemonldap::NG::Common::Conf;            #link protected lmConf Con
+figuration
use Lemonldap::NG::Common::Conf::Constants; #inherits
use Regexp::Assemble;
use URI::Split qw(uri_split);

*EXPORT_OK   = *Lemonldap::NG::Portal::Simple::EXPORT_OK;
*EXPORT_TAGS = *Lemonldap::NG::Portal::Simple::EXPORT_TAGS;
*EXPORT      = *Lemonldap::NG::Portal::Simple::EXPORT;

our $VERSION = '1.9.1';
use base qw(Lemonldap::NG::Portal::Simple);
our $confCached;

BEGIN {
    eval {
        require threads::shared;
        threads::shared::share($confCached);
    };
}

##################
# OVERLOADED SUB #
##################

## @method protected boolean getConf(hashRef args)
# Copy all parameters returned by the Lemonldap::NG::Common::Conf obje
+ct in $self.
# @param args hash
# @return True
sub getConf {
    my $self = shift;
    my %args;
    if ( ref( $_[0] ) ) {
        %args = %{ $_[0] };
    }
    else {
        %args = @_;
    }

    if ( defined( $args{configStorage} ) ) {
        $self->{configStorage} = $args{configStorage};
    }

    my $num;
    my $lConf;

    # If useLocalConf is set, just verify that current conf has the sa
+me number
    # than local cache one
    if ( $confCached and $confCached->{useLocalConf} ) {
        $lConf = $self->__lmConf->getLocalConf(PORTALSECTION);
        eval { $num = $lConf->{cfgNum} };
    }
    else {
        $num = $self->__lmConf->lastCfg();
    }

    # Reload configuration
    unless ( $confCached and $confCached->{cfgNum} == $num ) {
        $lConf ||= $self->__lmConf->getLocalConf(PORTALSECTION);
        my $prm = { cfgNum => $num };
        if ( $args{useLocalConf} or $lConf->{useLocalConf} ) {
            $prm->{local} = 1;
            $self->lmLog( 'useLocalConf set to true', 'debug' );
        }
        my $gConf = $self->__lmConf->getConf($prm);
        unless ( ref($gConf) and ref($lConf) ) {
            $self->abort( "Cannot get configuration",
                $Lemonldap::NG::Common::Conf::msg );
        }
        $self->lmLog(
            "Cached configuration too old, get configuration $num "
              . "($Lemonldap::NG::Common::Conf::msg)",
            'debug'
        );
        %$confCached = ( %$gConf, %$lConf );

        my $re = Regexp::Assemble->new();
        foreach my $vhost ( keys %{ $confCached->{locationRules} } ) {
            my $quotedVhost = quotemeta($vhost);
            $self->lmLog( "Vhost $vhost added in reVHosts", 'debug' );
            $re->add($quotedVhost);

            # Add aliases
            if ( $confCached->{vhostOptions}->{$vhost}->{vhostAliases}
+ ) {
                foreach my $alias ( split /\s+/,
                    $confCached->{vhostOptions}->{$vhost}->{vhostAlias
+es} )
                {
                    $self->lmLog( "Alias $alias added in reVHosts", 'd
+ebug' );
                    $re->add( quotemeta($alias) );
                }
            }
        }

        # Add portal vhost
        my ( $portal_scheme, $portal_auth ) =
          uri_split( $confCached->{portal} );
        $re->add($portal_auth);
        $self->lmLog( "Portal vhost $portal_auth added in reVHosts", '
+debug' );

        $confCached->{reVHosts} = $re->as_string;
    }

    %$self = ( %$self, %$confCached, %args, );

    $self->lmLog( "Now using configuration: " . $confCached->{cfgNum},
        'debug' );

    1;
}

sub __lmConf {
    my $self = shift;
    return $self->{lmConf} if ( $self->{lmConf} );
    my $r = Lemonldap::NG::Common::Conf->new( $self->{configStorage} )
+;
    $self->abort(
        "Cannot create configuration object",
        $Lemonldap::NG::Common::Conf::msg
    ) unless ( ref($r) );
    $self->{lmConf} = $r;
}
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its SYNOPSIS like below, but I can't find the new method in the code, is that inherits from the parent ? thanks a lot. here is the source code repo:https://forge.ow2.org/project/download.php?group_id=274&file_id=21538

  use Lemonldap::NG::Portal::SharedConf;
  my $portal = new Lemonldap::NG::Portal::SharedConf( {
         configStorage => {
             type        => 'DBI',
             dbiChain    => "dbi:mysql:...",
             dbiUser     => "lemonldap",
             dbiPassword => "password",
             dbiTable    => "lmConfig",
         },
         # Activate SOAP service
         Soap           => 1
    } );
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