#!/usr/local/bin/python2.7 """ Copyright (c) 2015 Deciso B.V. - Ad Schellevis All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -------------------------------------------------------------------------------------- return a list of all available rrd files including additional definition data """ import re import glob import xml.etree.ElementTree import os.path import ujson rrd_definition_dir = '%s/definitions' % os.path.dirname(os.path.abspath(__file__)) rrd_reports_dir = '/var/db/rrd' # query all rrd files available and initialize with empty definition result = {} for filename in glob.glob('%s/*.rrd' % rrd_reports_dir): rrdFilename = os.path.basename(filename).split('.')[0] # determine topic and item name, fixes naming issues if rrdFilename.split('-')[0] == 'system' and rrdFilename.find('-') > -1: topic = rrdFilename.split('-')[0] itemName = '-'.join(rrdFilename.split('-')[1:]) elif rrdFilename.find('-') == -1: # set topic for items without one topic = 'services' itemName = rrdFilename.split('.')[0] else: topic = rrdFilename.split('-')[-1] itemName = '-'.join(rrdFilename.split('-')[:-1]) result[rrdFilename] = {'title': '', 'y-axis_label': '', 'field_units': {}, 'topic': topic, 'itemName': itemName} # scan all definition files for filename in glob.glob('%s/*.xml' % rrd_definition_dir): rrdFilename = os.path.basename(filename).split('.')[0] try: ruleXML = xml.etree.ElementTree.fromstring(open(filename).read()) rrdDef = {} if ruleXML.tag == 'systemhealth': # only parse systemhealth items for child in ruleXML: if len(list(child)) == 0: # single items rrdDef[child.tag] = child.text else: # named list items rrdDef[child.tag] = {} for subchild in child: rrdDef[child.tag][subchild.tag] = subchild.text else: rrdDef['__msg'] = 'xml metadata not valid' except xml.etree.ElementTree.ParseError: # no valid xml, always return a valid (empty) data set rrdDef = {'__msg': 'xml metadata load error'} # link definition data to rrd file, use property file-match in xml to determine it's targets if 'file-match' in rrdDef: # remove file-match property from actual result file_match = rrdDef['file-match'] del rrdDef['file-match'] for rrdFilename in result: if re.search(file_match, rrdFilename) is not None: for fieldname in rrdDef: result[rrdFilename][fieldname] = rrdDef[fieldname] print(ujson.dumps(result))