class LCondition(LItem):
'''
>>> c = LCondition()
>>> c
<LCondition: pvName='TEST:AO' minimum=-10.0 maximum=10.0 action='Skip' description='Test condition'>
>>> c.connectPv()
>>> c.check()
'''
def __init__(self, parent = None):
"""
No description here because not needed at this low level
"""
super(LCondition, self).__init__(parent)
self.pvName = "TEST:AO"
self.minimum = -10.0
self.maximum = 10.0
self.action = 'Skip'
self._pv = None
self._orderedAttributes = 'pvName', 'minimum', 'maximum', 'action'
@LInAndOut(DEBUG & ITEMS)
def connectPv(self):
self._pv = LEpicsPv(self.pvName)
@LInAndOut(DEBUG & ITEMS)
def check(self):
''' Check that the condition is met '''
exception = None
pvValue = self._pv.get()
if (pvValue > self.maximum):
if self.action == 'Skip' :
raise Exception('%s < %f (min)' % (self.pvName, self.minimum), 'Skip iteration')
if self.action == 'Pause' :
raise Exception('%s < %f (min)' % (self.pvName, self.minimum), 'Pause requested')
if self.action == 'Stop' :
raise Exception('%s < %f (min)' % (self.pvName, self.minimum), 'Stop requested')
else:
raise Exception('%s > %f (max)' % (self.pvName, self.maximum), 'Pv above maximum')
if (pvValue < self.minimum):
if self.action == 'Skip' :
raise Exception('%s < %f (min)' % (self.pvName, self.minimum), 'Skipping iteration')
if self.action == 'Pause' :
raise Exception('%s < %f (min)' % (self.pvName, self.minimum), 'Pause requested')
if self.action == 'Stop' :
raise Exception('%s < %f (min)' % (self.pvName, self.minimum), 'Stop requested')
else:
raise Exception('%s < %f (min)' % (self.pvName, self.minimum), 'Pv below minimum')
verbose(self, " %f < { %s = %f } < %f" % (self.minimum , self.pvName, pvValue, self.maximum), 2)
return(True)
class LCondition(LItem):
"""
>>> c = LCondition()
>>> c
<LCondition: pvName='TEST:AO' minimum=-10.0 maximum=10.0 action='Skip' description='Test condition'>
>>> c.connectPv()
>>> c.check()
"""
def __init__(self, parent=None):
super(LCondition, self).__init__(parent)
self.pvName = "TEST:AO"
self.minimum = -10.0
self.maximum = 10.0
self.action = "Skip"
self._pv = None
self._orderedAttributes = "pvName", "minimum", "maximum", "action"
@LInAndOut(DEBUG & ITEMS)
def connectPv(self):
self._pv = LEpicsPv(self.pvName)
@LInAndOut(DEBUG & ITEMS)
def check(self):
""" Check that the condition is met """
exception = None
pvValue = self._pv.get()
if pvValue > self.maximum:
if self.action == "Skip":
raise Exception("%s < %f (min)" % (self.pvName, self.minimum), "Skip iteration")
if self.action == "Pause":
raise Exception("%s < %f (min)" % (self.pvName, self.minimum), "Pause requested")
if self.action == "Stop":
raise Exception("%s < %f (min)" % (self.pvName, self.minimum), "Stop requested")
else:
raise Exception("%s > %f (max)" % (self.pvName, self.maximum), "Pv above maximum")
if pvValue < self.minimum:
if self.action == "Skip":
raise Exception("%s < %f (min)" % (self.pvName, self.minimum), "Skipping iteration")
if self.action == "Pause":
raise Exception("%s < %f (min)" % (self.pvName, self.minimum), "Pause requested")
if self.action == "Stop":
raise Exception("%s < %f (min)" % (self.pvName, self.minimum), "Stop requested")
else:
raise Exception("%s < %f (min)" % (self.pvName, self.minimum), "Pv below minimum")
verbose(self, " %f < { %s = %f } < %f" % (self.minimum, self.pvName, pvValue, self.maximum), 2)
return True
