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####################################################################################################
#
# Patro - A Python library to make patterns for fashion design
# Copyright (C) 2017 Fabrice Salvaire
#
# 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/>.
#
####################################################################################################
####################################################################################################
import logging
from pathlib import Path
from lxml import etree
####################################################################################################
_module_logger = logging.getLogger(__name__)
####################################################################################################
class XmlFileMixin:
"""Class mixin to parse a XML file using lxml module"""
# _logger = _module_logger.getChild('XmlFile')
##############################################
def __init__(self, path):
self._path = Path(path)
##############################################
@property
def path(self):
return self._path
##############################################
with open(str(self._path), 'rb') as f:
source = f.read()
return etree.fromstring(source)
##############################################
"""Utility function to get elements from a xpath and a root"""
return root.xpath(path)
##############################################
"""Utility function to get an element from a xpath and a root"""
return root.xpath(path)[0]
##############################################
@classmethod
def get_text_element(cls, root, path):
"""Utility function to a text element from a xpath and a root"""
element = cls.get_xpath_element(root, path)
if hasattr(element, 'text'):
return element.text
else:
return None