configuration.pm

普通的ETL工具

# vim:ts=4 sw=4
# ----------------------------------------------------------------------------------------------------
#  Name		: ETL::Pequel3::Type::Section::Configuration.pm
#  Created	: 22 June 2006
#  Author	: Mario Gaffiero (gaffie)
#
# Copyright 1999-2007 Mario Gaffiero.
# 
# This file is part of Pequel(TM).
# 
# Pequel 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; version 2 of the License.
# 
# Pequel 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 Pequel; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
# ----------------------------------------------------------------------------------------------------
# Modification History
# When          Version     Who     What
# ----------------------------------------------------------------------------------------------------
package ETL::Pequel3::Type::Section::Configuration;
require 5.005_62;
use strict;
use warnings;
use ETL::Pequel3::Type::Section;
# ----------------------------------------------------------------------------------------------------
{
	package ETL::Pequel3::Type::Section::Configuration;
	use base qw(ETL::Pequel3::Type::Section::Abstract);
	use Class::STL::ClassMembers
		qw(
			config
		),
		Class::STL::ClassMembers::DataMember->new(name => 'target_mem_name', default => 'section_name'),
		Class::STL::ClassMembers::DataMember->new(name => 'section_name', default => 'configuration'),
		Class::STL::ClassMembers::DataMember->new(name => 'required', default => 1),
		Class::STL::ClassMembers::DataMember->new(name => 'item_type', default => 'ETL::Pequel3::Type::Section::Configuration::Item'),
		Class::STL::ClassMembers::DataMember->new(name => 'element_type', default => "@{[ __PACKAGE__ ]}"),
		Class::STL::ClassMembers::DataMember->new(name => 'description', default => 'This section is used to initialise any configuration properties for the I<pequel> object. Please refer to the F<Configuration Property> chapter for detailed information on each property.');
	use Class::STL::ClassMembers::Constructor;
	sub new_extra
	{
		my $self = shift;
		$self->config(ETL::Pequel3::Type::Properties::User->new());
		return $self;
	}
	sub prepare
	{
		my $self = shift;
		foreach my $i ($self->items()->to_array()) 
		{
			my $p;
			$self->err()->user_error(10255, "Unkown configuration property '@{[ $i->property_name() ]}'")
			if 
			(
				!($p = $self->pequel_ref()->catalogue()->properties()->exists($i->property_name()))
				|| !$p->isa('ETL::Pequel3::Type::Properties::Configuration::Abstract')
			);
			$p->global()
				? $p->value($i->value())
				: $self->config()->exists($i->property_name())->value($i->value());

			$self->err()->trace_msg(10, "@{[ $self->pequel_ref()->pequel_name() ]} -->"
				. "Configuration:"
				. $i->property_name()
				. "=" 
				. ($p->global()
					? $p->value() . " (global)"
					: $self->config()->exists($i->property_name())->value())
			);
		}
	}
	sub setup
	{
		my $self = shift;
		$self->select(); # create default configuration;
	}
	package ETL::Pequel3::Type::Section::Configuration::Item;
	use base qw(ETL::Pequel3::Type::Section::Item::Abstract);
	use Class::STL::ClassMembers;
	use Class::STL::ClassMembers::Constructor;
	sub new_extra
	{
		my $self = shift;
		$self->attributes()->push_back(
			$self->attributes()->factory(name => 'property_name', required => 1),
			$self->attributes()->factory(name => 'value', required => 1)
		);
	}
}
# ----------------------------------------------------------------------------------------------------
1;