def __init__(self):
"""Create the instrument object"""
self.mon = Monitor()
self.mon.login(b"Sesame")
self.det = DetectorProcess()
self.running = False#is the detector running?
self.starttime = clock()#When the most recent run started
self.config = XMLConfig()
self.det.directory(self.config.getDir())
self.subrun=0
class Instrument:
"""This class handles the collection of normalized neutron data
The class contains both a monitor object and a detector process
to provide normalized monitor data
"""
def __init__(self):
"""Create the instrument object"""
self.mon = Monitor()
self.mon.login(b"Sesame")
self.det = DetectorProcess()
self.running = False#is the detector running?
self.starttime = clock()#When the most recent run started
self.config = XMLConfig()
self.det.directory(self.config.getDir())
self.subrun=0
def getPassword(self):
return self.config.getPassword()
def updateRunnumber(self):
"""Update to the next data run"""
self.subrun=0
runnumber = self.config.nextRun()
def start(self):
"""Begin neutron collection"""
self.subrun += 1
runnumber = self.config.getRunnumber()
logging.info("Starting run %d.%04d" % (runnumber,self.subrun))
self.det.runnumber(self.subrun)
self.det.directory(self.config.getDir())
self.starttime = clock()
self.mon.startrun(runnumber,self.subrun)
self.det.start()
def getMonitorFile(self):
"""Return the absolute path for the monitor file"""
path = self.config.getDir()
path += "%04dmon.txt"%(self.subrun)
return path
def getLocalMonitorFile(self):
"""Return the relative path for the monitor file"""
return "%04dmon.txt"%(self.subrun)
def getRunnumber(self):
"""Return the current run number"""
return self.config.getRunnumber()
def getPath(self):
"""Return the current directory for saved data"""
return self.config.getDir()
def stop(self):
"""End collection of neutrons"""
self.mon.stoprun()
self.det.stop()
stop = clock()
detector_count = self.det.count()
monitor_count = self.mon.getCount()
logging.info("Run %d.%04d ended" % (self.config.getRunnumber(),self.subrun))
logging.info("Time:\t\t%f seconds"%(stop-self.starttime))
logging.info("Detector:\t%d counts"%detector_count)
logging.info("Monitor:\t%d counts"%monitor_count)
logging.debug("Saving Monitor File")
with open(self.getMonitorFile(),"w") as stream:
self.mon.localSave(stream,(clock()-self.starttime)*1000)
logging.debug("Run Stopped")
return (stop-self.starttime,monitor_count,detector_count)
def setParam(self,option,value):
"""Change the status of the detector"""
self.det.setParam(option,value)
def query(self,option):
"""Find the status of an instrument parameter"""
return self.det.query(option)
def timedrun(self,time):
"""Collect data for a set number of seconds"""
self.start()
sleep(time)
self.stop()
def __del__(self):
"""Destructor that handles the monitor login"""
self.mon.logout()
del self.mon
del self.det