def _load_current(self):
""" Gets the devices XML for the current instrument"""
# Read the data from file
try:
self._data = self._file_io.load_devices_file(self.get_devices_filename())
except IOError as err:
self._data = self.get_blank_devices()
print_and_log("Unable to load devices file. %s. The PV data will default to a blank set of devices." % err,
"MINOR")
return
try:
# Check against the schema
ConfigurationSchemaChecker.check_xml_data_matches_schema(os.path.join(self._schema_folder,
SCREENS_SCHEMA), self._data)
except ConfigurationInvalidUnderSchema as err:
self._data = self.get_blank_devices()
print_and_log(err.message)
return
try:
self._add_to_version_control("New change found in devices file")
except Exception as err:
print_and_log("Unable to add new data to version control. " + str(err), "MINOR")
self._vc.commit("Blockserver started, devices updated")
def save_devices_xml(self, xml_data):
""" Saves the xml in the current "screens.xml" config file.
Args:
xml_data (string): The XML to be saved
"""
try:
ConfigurationSchemaChecker.check_xml_data_matches_schema(os.path.join(self._schema_folder, SCREENS_SCHEMA),
xml_data)
except ConfigurationInvalidUnderSchema as err:
print_and_log(err.message)
return
try:
if not os.path.exists(FILEPATH_MANAGER.devices_dir):
os.makedirs(FILEPATH_MANAGER.devices_dir)
self._file_io.save_devices_file(self.get_devices_filename(), xml_data)
except IOError as err:
print_and_log("Unable to save devices file. %s. The PV data will not be updated." % err,
"MINOR")
return
# Update PVs
self.update(xml_data, "Device screens modified by client")
print_and_log("Devices saved to " + self.get_devices_filename())
def test_valid_blocks_xml_matches_schema(self):
self.cs.set_config_details(TEST_CONFIG)
xml = ConfigurationXmlConverter.blocks_to_xml(self.cs.get_block_details(), MACROS)
try:
ConfigurationSchemaChecker.check_xml_data_matches_schema(os.path.join(self.schema_dir, "blocks.xsd"), xml)
except:
self.fail()
def test_valid_components_xml_matches_schema(self):
conf = Configuration(MACROS)
conf.components["COMP1"] = "COMP1"
conf.components["COMP2"] = "COMP2"
xml = ConfigurationXmlConverter.components_to_xml(conf.components)
try:
ConfigurationSchemaChecker.check_xml_data_matches_schema(os.path.join(self.schema_dir, "components.xsd"), xml)
except:
self.fail()
def _check_valid(self, path):
"""
Check the validity of the device screens file and return the xml data contained within if valid
Args:
path (string): The location of the file
Returns: The device screens data as a string of xml
"""
extension = path[-4:]
if extension != ".xml":
raise NotConfigFileException("File not xml")
xml_data = self._manager.load_devices(path)
with self._schema_lock:
ConfigurationSchemaChecker.check_xml_data_matches_schema(self._schema_filepath, xml_data)
return xml_data
def _check_againgst_schema(self, xml, filename):
regex = re.compile(re.escape(".xml"), re.IGNORECASE)
name = regex.sub(".xsd", filename)
schema_path = os.path.join(FILEPATH_MANAGER.schema_dir, name)
ConfigurationSchemaChecker.check_xml_data_matches_schema(schema_path, xml)
