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xml_to_json.py
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xml_to_json.py
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#!/usr/bin/env python
# vim:ts=4:sts=4:sw=4:et
#
# Author: Hari Sekhon
# Date: 2016-01-15 00:07:09 +0000 (Fri, 15 Jan 2016)
#
# https://github.com/harisekhon/devops-python-tools
#
# License: see accompanying Hari Sekhon LICENSE file
#
# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback
# to help improve or steer this or other code I publish
#
# http://www.linkedin.com/in/harisekhon
#
"""
Tool to convert XML to JSON
Reads any given files as XML and prints the equivalent JSON to stdout for piping or redirecting to a file.
Directories if given are detected and recursed, processing all files in the directory tree ending in a .xml suffix.
Works like a standard unix filter program - if no files are passed as arguments or '-' is passed then reads from
standard input.
"""
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
#from __future__ import unicode_literals
import json
import os
import re
import sys
import xml
import xmltodict
libdir = os.path.abspath(os.path.join(os.path.dirname(__file__), 'pylib'))
sys.path.append(libdir)
try:
# pylint: disable=wrong-import-position
from harisekhon.utils import die, ERRORS, log, log_option
from harisekhon import CLI
except ImportError as _:
print('module import failed: %s' % _, file=sys.stderr)
print("Did you remember to build the project by running 'make'?", file=sys.stderr)
print("Alternatively perhaps you tried to copy this program out without it's adjacent libraries?", file=sys.stderr)
sys.exit(4)
__author__ = 'Hari Sekhon'
__version__ = '0.1'
class XmlToJson(CLI):
def __init__(self):
# Python 2.x
super(XmlToJson, self).__init__()
# Python 3.x
# super().__init__()
self.indent = None
self.re_xml_suffix = re.compile(r'.*\.xml$', re.I)
def add_options(self):
self.add_opt('-p', '--pretty', action='store_true', help='Pretty Print the resulting JSON')
def xml_to_json(self, content, filepath=None):
try:
_ = xmltodict.parse(content)
except xml.parsers.expat.ExpatError as _:
file_detail = ''
if filepath is not None:
file_detail = ' in file \'{0}\''.format(filepath)
die("Failed to parse XML{0}: {1}".format(file_detail, _))
json_string = json.dumps(_, sort_keys=True, indent=self.indent) #, separators=(',', ': '))
return json_string
def run(self):
if self.get_opt('pretty'):
log_option('pretty', True)
self.indent = 4
if not self.args:
self.args.append('-')
for arg in self.args:
if arg == '-':
continue
if not os.path.exists(arg):
print("'%s' not found" % arg)
sys.exit(ERRORS['WARNING'])
if os.path.isfile(arg):
log_option('file', arg)
elif os.path.isdir(arg):
log_option('directory', arg)
else:
die("path '%s' could not be determined as either a file or directory" % arg)
for arg in self.args:
self.process_path(arg)
def process_path(self, path):
if path == '-' or os.path.isfile(path):
self.process_file(path)
elif os.path.isdir(path):
for root, _, files in os.walk(path):
for filename in files:
filepath = os.path.join(root, filename)
if self.re_xml_suffix.match(filepath):
self.process_file(filepath)
else:
die("failed to determine if path '%s' is a file or directory" % path)
def process_file(self, filepath):
log.debug('processing filepath \'%s\'', filepath)
if filepath == '-':
filepath = '<STDIN>'
if filepath == '<STDIN>':
self.xml_to_json(sys.stdin.read())
else:
with open(filepath) as _:
content = _.read()
print(self.xml_to_json(content, filepath=filepath))
if __name__ == '__main__':
XmlToJson().main()