config_loader.py

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#!/usr/bin/env python
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##\brief Kevin Watts
##\brief Loads configuration files for Test Manager

PKG = 'life_test'
import roslib
roslib.load_manifest(PKG)

from xml.dom import minidom

import os, sys
import rospy

from test_param import *
from test_bay import *

##\brief Loads configuration file about testing rooms
def load_rooms_from_file():
    filepath = os.path.join(roslib.packages.get_pkg_dir(PKG), 'wg_test_rooms.xml')

    rooms = {}

    try:
        doc = minidom.parse(filepath)
        rooms_xml = doc.getElementsByTagName('room')
        for room_xml in rooms_xml:
            hostname = room_xml.attributes['hostname'].value
            room = TestRoom(hostname)
            for bay in room_xml.getElementsByTagName('bay'):
                room.add_bay(TestBay(bay))
                rooms[hostname] = room

        return rooms
    except:
        import traceback
        rospy.logerr('Caught exception loading rooms data. Exception: %s' % traceback.format_exc())

        return {}
  
##\brief Loads configuration file about tests
def load_tests_from_file(test_xml_path = os.path.join(roslib.packages.get_pkg_dir(PKG), 'tests.xml')):
    my_tests = {}

    try:
        doc = minidom.parse(test_xml_path)
    except IOError:
        rospy.logerr('Could not load tests from %s' % test_xml_path)
        return {}

    try:
        tests = doc.getElementsByTagName('test')
        for test_xml in tests:
            serial = test_xml.attributes['serial'].value
            
            my_tst = LifeTest()

            if not my_tst.init_xml(test_xml):
                print >> sys.stderr, "Unable to load test: %s" % str(test_xml)
                return {}

            my_tests.setdefault(serial, []).append(my_tst)
                
        return my_tests
    except:
        import traceback
        rospy.logerr('Caught exception parsing test XML. Exception: %s' % traceback.format_exc())
        return {}