def __init__(self): # pragma: NO COVER
'''
Components derived from ContainerServices must invoke this constructor!
Automatically taken care of in PySimpleClient objects.
Parameters: None
Raises: Nothing
'''
#Name of this component if applicable
self.__name = None
#Name of this component container if applicable
self.__contname = None
#Token given to us by manager
self.__token = None
#Handle give to us by manager
self.__handle = None
#Logger for this client
self.__logger = None
#Provides access to the ACS CDB
self.__cdb_access = CDBaccess()
#The real container/client method(s) invoked by this classes methods.
#In doing this, we can hide the container/client completely as long
#as it invokes the setAll(...) method.
self.activateOffShootMethod = None
def get_cdb_access(): # pragma: NO COVER
'''
This function is only around to fix some problems with pydoc documentation
issues. That is, CDBaccess() cannot be called globally or everything NC-related
breaks.
'''
global _cdb_access
if _cdb_access == None:
_cdb_access = CDBaccess()
return _cdb_access
def __init__(self, name, charCompRef):
'''
Constructor
Params:
- name is the quite literally the name of the property
- charCompRef is the characteristic component object which contains this
property
Returns: Nothing
Raises: Nothing.
'''
#just call the superclass constructor
Property.__init__(self, name, charCompRef)
#setup a default value for all attributes
self.cdbDict = {}
try:
#need access to the CDB to determine characteristics of this property
cdbAccess = CDBaccess()
#make sure the entry exists first of all...
t_xml = cdbAccess.getField(
"alma/" + self._get_characteristic_component_name())
#create an xml helper object
xml_obj = XmlObject(xmlString=t_xml)
#get the top-level element
xml_obj = xml_obj.firstChild
t_prop_name = self._get_name().split('/')[1]
#get the property we're looking for
xml_obj = xml_obj.getElementsByTagName(t_prop_name)[0]
#setup the CDB dict using attributes found within the CDB
for attr in xml_obj.attributes.keys():
self.cdbDict[attr] = xml_obj.getAttribute(attr)
except:
#print_exc()
self.getLogger().logWarning(
"Some problem occurred when attempting to retrieve data from the ACS CDB for: alma/"
+ self._get_characteristic_component_name() + "/" +
self._get_name().split('/')[1])
return
# later version. # # This library is distributed in the hope that it will be useful, but WITHOUT # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY FITNESS # FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more # details. # # You should have received a copy of the GNU Library General Public License # along with this library; if not, write to the Free Software Foundation, Inc., # 675 Massachusetts Ave, Cambridge, MA 02139, USA. Correspondence concerning # ALMA should be addressed as follows: # # Internet email: [email protected] #------------------------------------------------------------------------ from Acspy.Common.CDBAccess import CDBaccess print "------------------------------------------------------------------" print "Creating CDBaccess..." g = CDBaccess() print "------------------------------------------------------------------" print "Invoking getField on CDB/alma/MOUNT1" h = g.getField("alma/MOUNT1") if h == None: print "There was some sort of problem getting the XML record" print "------------------------------------------------------------------" print "Invoking getElement on actAz property of CDB/alma/MOUNT1" h = g.getElement("alma/MOUNT1", "MOUNT/actAz") print "Alarm high off is: ", h[0]['alarm_high_off'] print "------------------------------------------------------------------" print "Done!"
#storage for "static data" that can be shared between components
_GLOBALS = {}
#namespace of individual components
COMPONENTS_NS = {}
COMPONENTS_NS_LIST = {}
#described simulated behavior of the components
_COMP_PROXIES = {}
#maps component names to component instances
_COMP_REFS = {}
#first get access to the CDB
CDB_ACCESS = CDBaccess()
#each key in this dictionary consists of the stingified channel and the value
#is a supplier object for said channel.
_SUPPLIERS_DICT = {}
#------------------------------------------------------------------------------
def addComponent(comp_name, comp_ref):
'''
Adds a component to the singled dictionary contained within this module.
This is in place to be called by the simulator framework and probably
isn't of much use to end-users.
Parameters:
comp_name - name of the component in string format
