Source code for spinn_front_end_common.interface.interface_functions.provenance_xml_writer
# Copyright (c) 2017-2019 The University of Manchester
#
# 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 itertools
import string
from lxml import etree
from spinn_front_end_common.utilities.helpful_functions import (
generate_unique_folder_name)
_VALID_CHARS = frozenset(
"-_.() {}{}".format(string.ascii_letters, string.digits))
_XML_BRANCH_NAME = "provenance_data_items"
_XML_LEAF_NAME = "provenance_data_item"
[docs]class ProvenanceXMLWriter(object):
""" Write provenance data into XML
"""
__slots__ = []
def __call__(self, provenance_data_items, provenance_data_path):
""" Writes provenance in XML format
:param provenance_data_items: data items for provenance
:param provenance_data_path: the file path to store provenance in
:return: None
"""
# Group data by the first name
items = sorted(provenance_data_items, key=lambda item: item.names[0])
for name, group in itertools.groupby(
items, lambda item: item.names[0]):
# Create a root node
root = etree.Element(_XML_BRANCH_NAME, name=name)
# Keep track of sub-categories
categories = {root: dict()}
# Go through the items and add them
for item in group:
# Add the "categories" for the item (any name between the first
# and last)
parent = self._build_path(root, categories, item)
# Add the item
element = etree.SubElement(
parent, _XML_LEAF_NAME, name=item.names[-1])
element.text = str(item.value)
# write xml form into file provided
with open(self._get_file(provenance_data_path, name), "wb") as f:
f.write(etree.tostring(root, pretty_print=True))
@staticmethod
def _get_file(path, name):
remapped = "".join(c if c in _VALID_CHARS else '_' for c in name)
return generate_unique_folder_name(path, remapped, ".xml")
@staticmethod
def _build_path(root, categories, item):
parent = root
cats = categories[root]
for cat_name in item.names[1:-1]:
if cat_name not in cats:
# If there is not a category of this name under the parent
# element, create a new category
parent = etree.SubElement(
parent, _XML_BRANCH_NAME, name=cat_name)
cats[cat_name] = parent
categories[parent] = dict()
# Update our state variables for the next run of the loop
parent = cats[cat_name]
cats = categories[parent]
return parent