def init_dev_from_xml_config(db,tree,clear_servers):
""" Loop over xml config and initialize devices """
registered_servers= []
## Traverse the XML document
for cs_node in tree.iter('ControlSystem'):
## Get domain name
domain_name_node = cs_node.find('./domain_name')
if domain_name_node is None :
errMsg= "Cannot find 'domain_name' in configuration file (missing?)!"
#logging.error(errMsg)
raise Exception(errMsg)
domain_name_node.text = domain_name_node.text.strip()
if domain_name_node.tail is not None :
domain_name_node.tail = domain_name_node.tail.strip()
domain_name= domain_name_node.text
if domain_name is '' :
errMsg= "Empty domain name found in config file (check config)!"
#logging.error(errMsg)
raise Exception(errMsg)
#logging.info("Domain name: %s",str(domain_name))
## Get host name
host_name_node = cs_node.find('./host_name')
if host_name_node is None :
errMsg= "Cannot find 'host_name' in configuration file (missing?)!"
#logging.error(errMsg)
raise Exception(errMsg)
host_name_node.text = host_name_node.text.strip()
if host_name_node.tail is not None :
host_name_node.tail = host_name_node.tail.strip()
host_name= host_name_node.text
if host_name is '' :
errMsg= "Empty host name found in config file (check config)!"
#logging.error(errMsg)
raise Exception(errMsg)
logging.info("Host name: %s",str(host_name))
## Get device servers
servers_node= cs_node.find('./device_servers')
if servers_node is None :
errMsg= "Cannot find 'device_servers' in configuration file (missing?)!"
#logging.error(errMsg)
raise Exception(errMsg)
## Iterate over device servers found
for server_node in servers_node.iter('server'):
## Get server name & instance
if 'name' not in server_node.attrib or 'instance' not in server_node.attrib:
errMsg= "Cannot find 'name' and/or 'instance' attr in server element!"
#logging.error(errMsg)
raise Exception(errMsg)
server_name= server_node.attrib.get('name').strip()
server_id= server_node.attrib.get('instance').strip()
server_full_name= server_name + "/" + server_id
server_info= ServerInfo(server_name,server_id)
## Get server info (optional)
if 'startup_level' in server_node.attrib :
startup_level= server_node.attrib.get('startup_level')
else :
startup_level= 1
if 'astor_controlled' in server_node.attrib :
astor_controlled= server_node.attrib.get('astor_controlled')
else :
astor_controlled= 0
#logging.debug("Server info: Host=%s, StartupLevel=%d, AstorControlled=%s",str(host_name),str(startup_level),str(astor_controlled))
## Check if server is already present
if has_server(db,server_full_name):
#logging.info('Server %s is already present in TangoDB',server_full_name)
if clear_servers:
#logging.info('Deleting server %s from TangoDB',server_full_name)
try:
db.delete_server(server_full_name)
except PyTango.DevFailed as df:
#logging.error("Failed to delete server %s from DB!",server_full_name)
raise
#logging.info("Configuring device server %s [instance %s]",server_name,server_id)
## Iterate over classes
for class_node in server_node.iter('class'):
## Get class name
if 'name' not in class_node.attrib :
errMsg= "Cannot find 'name' attr in class element!"
#logging.error(errMsg)
raise Exception(errMsg)
class_name= class_node.attrib.get('name').strip()
## Iterate over devices
for device_node in class_node.iter('device'):
## Get device domain name (if not present use main domain property)
if 'domain' not in device_node.attrib :
#logging.debug("No 'domain' attr present in class element, using main domain name property...")
device_domain= domain_name
else :
device_domain= device_node.attrib.get('domain').strip()
## Get device name
if 'name' not in device_node.attrib :
errMsg= "Cannot find 'name' attr in class element!"
#logging.error(errMsg)
raise Exception(errMsg)
device_name= device_node.attrib.get('name').strip()
## Get device family name
if 'family' not in device_node.attrib :
errMsg= "Cannot find 'family' attr in class element!"
#logging.error(errMsg)
raise Exception(errMsg)
device_family= device_node.attrib.get('family').strip()
## Get device alias
if 'alias' in device_node.attrib and device_node.attrib.get('alias') is not '':
has_device_alias= True
device_alias= device_node.attrib.get('alias').strip()
else :
has_device_alias= False
device_alias= ''
device_full_name= device_domain + str('/') + device_family + str('/') + device_name
server_info.add_device(device_full_name)
#logging.info("Registering device server %s [instance %s, class %s]: device_full_name=%s [alias=%s]",server_name,server_id,class_name,device_full_name,device_alias)
## Check if device is already registered in DB
hasDevice= has_device(db,server_full_name,class_name,device_full_name)
try:
register_device(db,server_full_name,class_name,device_full_name,device_alias)
except PyTango.DevFailed as df:
errMsg= "Failed to registed device " + device_full_name + " in DB (err=" + str(df) + ")"
raise Exception(errMsg)
## Configure device properties
try:
configure_device_properties(db,device_node,device_full_name)
except:
raise
## Get device configuration node
#device_configuration_node= device_node.find('./DeviceConfiguration')
#if device_configuration_node is None :
# errMsg= "Cannot find 'DeviceConfiguration' node in configuration file (missing?)!"
# raise Exception(errMsg)
## Get device properties
#device_properties_node= device_configuration_node.find('./DeviceProperties')
#if device_properties_node is None :
# continue
## Iterate over device properties and create dictionary
#device_properties = []
#device_property_dict = {}
#for dev_prop_node in device_properties_node.findall('DeviceProperty') :
## Get prop name
#if 'name' not in dev_prop_node.attrib :
#errMsg= "Cannot find 'name' attr in device_property element!"
#logging.error(errMsg)
#raise Exception(errMsg)
#dev_prop_name= dev_prop_node.attrib.get('name').strip()
## Get prop value(s)
#device_property_dict = {}
#device_property_dict['name']= dev_prop_name
#nvalues= len(dev_prop_node.xpath(".//Value"))
#if nvalues==1 :
#dev_prop_value_node= dev_prop_node.find('./Value')
#dev_prop_value_node.text = dev_prop_value_node.text.strip()
#if dev_prop_value_node.tail is not None :
#dev_prop_value_node.tail = dev_prop_value_node.tail.strip()
#dev_prop_value= dev_prop_value_node.text
#device_prop_values= dev_prop_value
#else :
#device_prop_values= []
#for dev_prop_value_node in dev_prop_node.findall('./Value') :
#dev_prop_value_node.text = dev_prop_value_node.text.strip()
#if dev_prop_value_node.tail is not None :
#dev_prop_value_node.tail = dev_prop_value_node.tail.strip()
#dev_prop_value= dev_prop_value_node.text
#device_prop_values.append(dev_prop_value)
#logging.info("Processing dev prop %s : value %s",dev_prop_name,str(dev_prop_value))
#if not device_prop_values :
#errMsg= "Empty list of property values!"
#logging.error(errMsg)
#raise Exception(errMsg)
## Fill dev prop value key
#device_property_dict['value']= device_prop_values
## Append dictionary to list
#device_properties.append(device_property_dict)
#print(device_property_dict)
## End loop device properties
#print(device_properties)
#if device_properties :
#if init_device_properties(db,device_full_name,convert(device_properties)) != 0 :
#errMsg= "Failed to initialize dev properties of device " + device_full_name + "!"
#logging.error(errMsg)
#raise Exception(errMsg)
#else :
#errMsg= "Empty device property list detected, check!"
#logging.warn(errMsg)
#raise Exception(errMsg)
## Put server info in DB (startup level, etc)
serv_info= PyTango.DbServerInfo()
serv_info.name= str(server_full_name)
serv_info.host= str(host_name)
serv_info.mode= int(astor_controlled=='true')
serv_info.level= int(startup_level)
try :
db.put_server_info(serv_info)
except PyTango.DevFailed as df:
print(str(df))
errMsg= "Failed to put server info in TangoDB (TangoDB off or invalid syntax?)!"
#logging.error(errMsg)
raise Exception(errMsg)
## If registration is completed with success add server_info to list
registered_servers.append(server_info)
#logging.info("End config file processing")
return registered_servers
def init_dev_from_xml_config(tree,clear_servers):
""" Loop over xml config and initialize devices """
registered_servers= []
## Initialize TangoDB
try :
db= PyTango.Database()
except PyTango.DevFailed as df:
print(str(df))
errMsg= "Failed to get access to TangoDB (did you forget to start Tango?)!"
logging.error(errMsg)
#return 1
raise Exception(errMsg)
## Traverse the XML document
for cs_node in tree.iter('ControlSystem'):
## Get domain name
domain_name_node = cs_node.find('./domain_name')
if domain_name_node is None :
errMsg= "Cannot find 'domain_name' in configuration file (missing?)!"
logging.error(errMsg)
#return 1
raise Exception(errMsg)
domain_name_node.text = domain_name_node.text.strip()
if domain_name_node.tail is not None :
domain_name_node.tail = domain_name_node.tail.strip()
domain_name= domain_name_node.text
if domain_name is '' :
errMsg= "Empty domain name found in config file (check config)!"
logging.error(errMsg)
#return 1
raise Exception(errMsg)
logging.info("Domain name: %s",str(domain_name))
## Get host name
host_name_node = cs_node.find('./host_name')
if host_name_node is None :
errMsg= "Cannot find 'host_name' in configuration file (missing?)!"
logging.error(errMsg)
#return 1
raise Exception(errMsg)
host_name_node.text = host_name_node.text.strip()
if host_name_node.tail is not None :
host_name_node.tail = host_name_node.tail.strip()
host_name= host_name_node.text
if host_name is '' :
errMsg= "Empty host name found in config file (check config)!"
logging.error(errMsg)
#return 1
raise Exception(errMsg)
logging.info("Host name: %s",str(host_name))
## Get device servers
servers_node= cs_node.find('./device_servers')
if servers_node is None :
errMsg= "Cannot find 'device_servers' in configuration file (missing?)!"
logging.error(errMsg)
raise Exception(errMsg)
#return 1
## Iterate over device servers found
for server_node in servers_node.iter('server'):
## Get server name & instance
if 'name' not in server_node.attrib or 'instance' not in server_node.attrib:
errMsg= "Cannot find 'name' and/or 'instance' attr in server element!"
logging.error(errMsg)
raise Exception(errMsg)
#return 1
server_name= server_node.attrib.get('name').strip()
server_id= server_node.attrib.get('instance').strip()
server_full_name= server_name + "/" + server_id
server_info= ServerInfo(server_name,server_id)
## Get server info (optional)
if 'startup_level' in server_node.attrib :
startup_level= server_node.attrib.get('startup_level')
else :
startup_level= 1
if 'astor_controlled' in server_node.attrib :
astor_controlled= server_node.attrib.get('astor_controlled')
else :
astor_controlled= 0
logging.debug("Server info: Host=%s, StartupLevel=%d, AstorControlled=%s",str(host_name),str(startup_level),str(astor_controlled))
## Check if server is already present
if has_server(db,server_full_name):
logging.info('Server %s is already present in TangoDB',server_full_name)
if clear_servers:
logging.info('Deleting server %s from TangoDB',server_full_name)
try:
db.delete_server(server_full_name)
except PyTango.DevFailed as df:
#print(str(df))
logging.error("Failed to delete server %s from DB!",server_full_name)
#return 1
raise
logging.info("Configuring device server %s [instance %s]",server_name,server_id)
## Iterate over classes
for class_node in server_node.iter('class'):
## Get class name
if 'name' not in class_node.attrib :
errMsg= "Cannot find 'name' attr in class element!"
logging.error(errMsg)
#return 1
raise Exception(errMsg)
class_name= class_node.attrib.get('name').strip()
## Iterate over devices
for device_node in class_node.iter('device'):
## Get device domain name (if not present use main domain property)
if 'domain' not in device_node.attrib :
logging.debug("No 'domain' attr present in class element, using main domain name property...")
device_domain= domain_name
else :
device_domain= device_node.attrib.get('domain').strip()
## Get device name
if 'name' not in device_node.attrib :
errMsg= "Cannot find 'name' attr in class element!"
logging.error(errMsg)
#return 1
raise Exception(errMsg)
device_name= device_node.attrib.get('name').strip()
## Get device family name
if 'family' not in device_node.attrib :
errMsg= "Cannot find 'family' attr in class element!"
logging.error(errMsg)
#return 1
raise Exception(errMsg)
device_family= device_node.attrib.get('family').strip()
## Get device alias
if 'alias' in device_node.attrib and device_node.attrib.get('alias') is not '':
has_device_alias= True
device_alias= device_node.attrib.get('alias').strip()
else :
has_device_alias= False
device_alias= ''
device_full_name= device_domain + str('/') + device_family + str('/') + device_name
server_info.add_device(device_full_name)
logging.info("Registering device server %s [instance %s, class %s]: device_full_name=%s [alias=%s]",server_name,server_id,class_name,device_full_name,device_alias)
## Check if device is already registered in DB
hasDevice= has_device(db,server_full_name,class_name,device_full_name)
if hasDevice :
logging.info("Device %s is already registered in DB...",device_full_name)
## db.delete_device(device_full_name)
else :
logging.info("Device %s is not present in DB, registering it...",device_full_name)
if register_device(db,server_full_name,class_name,device_full_name,device_alias) != 0 :
errMsg= "Failed to registed device " + device_full_name + " in DB!"
logging.error(errMsg)
#return 1
raise Exception(errMsg)
## Get device configuration node
device_configuration_node= device_node.find('./DeviceConfiguration')
if device_configuration_node is None :
errMsg= "Cannot find 'DeviceConfiguration' node in configuration file (missing?)!"
logging.error(errMsg)
#return 1
raise Exception(errMsg)
## Get device properties
device_properties_node= device_configuration_node.find('./DeviceProperties')
if device_properties_node is None :
logging.warn("Cannot find 'DeviceProperties' node in configuration file...nothing to be configured!")
#return 0
continue
## Iterate over device properties and create dictionary
device_properties = []
#device_property_dict = {}
for dev_prop_node in device_properties_node.findall('DeviceProperty') :
## Get prop name
if 'name' not in dev_prop_node.attrib :
errMsg= "Cannot find 'name' attr in device_property element!"
logging.error(errMsg)
#return 1
raise Exception(errMsg)
dev_prop_name= dev_prop_node.attrib.get('name').strip()
## Get prop value(s)
device_property_dict = {}
device_property_dict['name']= dev_prop_name
nvalues= len(dev_prop_node.xpath(".//Value"))
if nvalues==1 :
dev_prop_value_node= dev_prop_node.find('./Value')
dev_prop_value_node.text = dev_prop_value_node.text.strip()
if dev_prop_value_node.tail is not None :
dev_prop_value_node.tail = dev_prop_value_node.tail.strip()
dev_prop_value= dev_prop_value_node.text
device_prop_values= dev_prop_value
else :
device_prop_values= []
for dev_prop_value_node in dev_prop_node.findall('./Value') :
dev_prop_value_node.text = dev_prop_value_node.text.strip()
if dev_prop_value_node.tail is not None :
dev_prop_value_node.tail = dev_prop_value_node.tail.strip()
dev_prop_value= dev_prop_value_node.text
device_prop_values.append(dev_prop_value)
logging.info("Processing dev prop %s : value %s",dev_prop_name,str(dev_prop_value))
#if dev_prop_name in device_property_dict:
# append the new number to the existing array at this slot
#device_property_dict[dev_prop_name].append(dev_prop_value)
# device_prop_values.append(dev_prop_value)
#else:
# if nvalues == 1:
# logging.info("Single dev prop value")
#device_property_dict[dev_prop_name] = dev_prop_value
# device_prop_values= dev_prop_value
# else :
# create a new array in this slot
#device_property_dict[dev_prop_name] = [dev_prop_value]
# device_prop_values.append(dev_prop_value)
if not device_prop_values :
errMsg= "Empty list of property values!"
logging.error(errMsg)
#return 1
raise Exception(errMsg)
## Fill dev prop value key
device_property_dict['value']= device_prop_values
## Append dictionary to list
device_properties.append(device_property_dict)
print(device_property_dict)
## End loop device properties
print(device_properties)
if device_properties :
if init_device_properties(db,device_full_name,convert(device_properties)) != 0 :
errMsg= "Failed to initialize dev properties of device " + device_full_name + "!"
logging.error(errMsg)
#return 1
raise Exception(errMsg)
else :
errMsg= "Empty device property list detected, check!"
logging.warn(errMsg)
#return 1
raise Exception(errMsg)
## Put server info in DB (startup level, etc)
serv_info= PyTango.DbServerInfo()
serv_info.name= str(server_full_name)
serv_info.host= str(host_name)
serv_info.mode= int(astor_controlled=='true')
serv_info.level= int(startup_level)
try :
db.put_server_info(serv_info)
except PyTango.DevFailed as df:
print(str(df))
errMsg= "Failed to put server info in TangoDB (TangoDB off or invalid syntax?)!"
logging.error(errMsg)
#return 1
raise Exception(errMsg)
## If registration is completed with success add server_info to list
registered_servers.append(server_info)
## Start the server process
#logging.info("Starting server %s process...",server_name)
#server_verbosity= 1
#[start_status,pe]= start_server_process(db,server_name,server_id,server_verbosity)
#if start_status != 0 :
# logging.error("Failed to start server %s ",server_name)
#server_threads.append(pe.t)
## Wait until device server has completed startup (e.g. they should be in ON State)
#final_state= tango._tango.DevState.ON
#startup_timeout= 10 # in seconds
#sleep_time= 2 # in seconds
#startup_reached_status= wait_server_startup(db,server_full_name,final_state,startup_timeout,sleep_time)
#if startup_reached_status !=0 :
# logging.error("Server %s did not startup within the assumed timeout!",server_full_name)
## Joining device server thread?
logging.info("End config file processing")
#return 0
return registered_servers
