def GetCurrentQueries(self):
print("In "+self.get_name()+"::GetCurrentQueries()")
#self.get_device_properties()
#if not self.is_command_polled('state'):
#self.poll_command('state',3000)
try:
pending = []
for s in self.PeriodicQueries:
s = s.split(',')
a,t = s[0],max((float(s[-1]),self.ExpireTime))
if a not in self.AttrData or self.AttrData[a][0]<(fn.now()-t):
if a in self.AttrData:
print('%s data is %s seconds old'%(a,fn.now()-self.AttrData[a][0]))
pending.append(s[:3])
if pending:
self.set_state(PyTango.DevState.RUNNING)
print('Executing %d scheduled queries:\n%s'%(len(pending),'\n'.join(map(str,pending))))
for p in pending:
self.GetAttDataBetweenDates(p)
else:
self.set_state(PyTango.DevState.ON)
except:
self.set_state(PyTango.DevState.FAULT)
self.set_status(traceback.format_exc())
print(self.get_status())
return self.PeriodicQueries
def reader_hook(self, attribute, values):
"""This method will be executed by the ReaderProcess to process the queried data."""
try:
print('>' * 80)
print(time.ctime() + ' In reader_hook(%s,[%d])' %
(attribute, len(values)))
MAXDIM = 1024 * 1024 * 1024
#First create the attributes
epoch, data, aname = [], [], attribute.replace('/', '__')
values = decimate_values(values)
[(epoch.append(v[0]), data.append(v[1])) for v in values]
writable = PyTango.AttrWriteType.READ
#Adding time attribute
m, atformat, dims = None, PyTango.SpectrumAttr, [MAXDIM]
for d in data:
if d is not None:
if fn.isSequence(d):
atformat, dims = PyTango.ImageAttr, [MAXDIM, MAXDIM]
m = d[0]
else:
m = d
break
attype = PyTango.DevDouble if (
fn.isNumber(m) or fn.isBool(m)) else PyTango.DevString
self.add_attribute(
PyTango.ImageAttr(aname, attype, writable, MAXDIM, MAXDIM),
self.read_dyn_attr, None, self.is_dyn_attr_allowed)
self.add_attribute(
PyTango.SpectrumAttr(aname + '_t', PyTango.DevDouble, writable,
MAXDIM), self.read_dyn_attr, None,
self.is_dyn_attr_allowed)
self.add_attribute(
PyTango.SpectrumAttr(aname + '_d', PyTango.DevString, writable,
MAXDIM), self.read_dyn_attr, None,
self.is_dyn_attr_allowed)
self.add_attribute(atformat(aname + '_r', attype, writable,
*dims), self.read_dyn_attr, None,
self.is_dyn_attr_allowed)
#Then add the data to Cache values, so IsDataReady will return True
t = fn.now()
self.RemoveCachedAttribute(attribute)
self.AttrData[attribute] = (t, atformat, attype, values)
print('Done: %s,%s,%s,%s,%d' %
(attribute, t, atformat, attype, len(values)))
except:
print(traceback.format_exc())
def update(self,value,date,quality,t=None):
self.value=value
self.date=date
self.quality=quality
self.updated = t or fun.now()
try:
if value is not None and not hasattr(value,'__len__') and not isinstance(value,Exception):
if self.max_peak[0] is None or self.value>self.max_peak[0]:
self.max_peak = (value,date)
if self.min_peak[0] is None or self.value<self.min_peak[0]:
self.min_peak = (value,date)
except: pass
def read_dyn_attr(self, attr):
try:
#attr.set_value(1.0)
aname, values = attr.get_name(), []
attribute = self.tag2attr(aname)
print time.ctime() + 'In read_dyn_attr(%s)' % aname
print(self.counter)
try:
req, atformat, attype, data = self.AttrData[attribute]
except Exception, e:
print('Unable to read %s: key = %s ; cache = %s' %
(attr, attribute, self.AttrData.keys()))
traceback.print_exc()
raise e
conv = self.bool2float if attype is PyTango.DevBoolean \
else (float if attype is PyTango.DevDouble
else str)
if aname.endswith('_r'):
if atformat is PyTango.SpectrumAttr:
values = [conv(v[1] or 0.) for v in data]
else:
values = [map(conv, v[1]) for v in data]
if values:
print time.ctime(
) + 'In read_dyn_attr(%s): %s[%d]:%s...%s' % (
aname, type(
values[0]), len(values), values[0], values[-1])
else:
print '\tno values'
attr.set_value(values, len(values))
elif aname.endswith('_l'):
print('%s: %s' % (aname, data))
if data[-1:]:
value = conv(data[-1][1])
date = float(data[-1][0] or 0.)
q = ft.AttrQuality.ATTR_VALID
else:
value = None
date = fn.now()
q = ft.AttrQuality.ATTR_INVALID
print(
time.ctime() + 'In read_dyn_attr(%s): (%s,%s,%s)' %
(aname, value, date, q))
attr.set_value_date_quality((value or 0.), date, q)
elif aname.endswith('_w'):
if atformat is PyTango.SpectrumAttr:
values = [conv(v[2] or 0.) for v in data]
else:
values = [map(conv, v[2]) for v in data]
if values:
print time.ctime(
) + 'In read_dyn_attr(%s): %s[%d]:%s...%s' % (
aname, type(
values[0]), len(values), values[0], values[-1])
else:
print '\tno values'
attr.set_value(values, len(values))
elif aname.endswith('_t'):
values = [float(v[0] or 0.) for v in data]
if values:
print time.ctime(
) + 'In read_dyn_attr(%s): %s[%d]:%s...%s' % (
aname, type(
values[0]), len(values), values[0], values[-1])
else:
print '\tno values'
attr.set_value(values, len(values))
elif aname.endswith('_d'):
values = [fn.time2str(float(v[0] or 0.)) for v in data]
if values:
print time.ctime(
) + 'In read_dyn_attr(%s): %s[%d]:%s...%s' % (
aname, type(
values[0]), len(values), values[0], values[-1])
else:
print '\tno values'
attr.set_value(values, len(values))
elif aname.endswith('_ld'):
lv = [fn.time2str(float(v[0] or 0.)) for v in data[-1:]]
if lv:
print(
time.ctime() + 'In read_dyn_attr(%s): %s[%d]:%s...%s' %
(aname, type(lv[0]), len(lv), lv[0], lv[-1]))
else:
print '\tno values'
attr.set_value(lv[-1])
else:
if atformat == PyTango.SpectrumAttr:
if attype == PyTango.DevString:
values = [(fn.time2str(d[0]), str(d[1])) for d in data]
else:
values = [(d[0], conv(d[1])) for d in data]
else:
if attype is PyTango.DevString:
values = [[fn.time2str(d[0])] + map(str, d[1])
for d in data]
else:
values = [[d[0]] + map(conv, d[1]) for d in data]
if values:
print time.ctime(
) + 'In read_dyn_attr(%s): %s[%d]:%s...%s' % (
aname, type(
values[0]), len(values), values[0], values[-1])
else:
print '\tno values'
attr.set_value(values, len(values))
print '\treturned %d values' % len(values)
def RemoveCachedAttributes(self):
print "In ", self.get_name(), "::RemoveCachedAttributes()"
# Add your own code here
remove = [a for a,v in self.AttrData.items() if v[0]<fn.now()-self.ExpireTime]
for a in self.AttrData.keys()[:]:
self.RemoveCachedAttribute(a)
def reader_hook(self,attribute,values):
"""This method will be executed by the ReaderProcess to process the queried data."""
try:
print('>'*80)
print(time.ctime()+' In reader_hook(%s,[%d])'
%(attribute,len(values)))
self.counter-=1
print(self.counter)
MAXDIM = 1024*1024*1024
#First create the attributes
epoch,data,aname = [],[],attribute.replace('/','__')
values = decimate_values(values)
[(epoch.append(v[0]),data.append(v[1])) for v in values]
writable = PyTango.AttrWriteType.READ
#Adding time attribute
m,atformat,dims = None,PyTango.SpectrumAttr,[MAXDIM]
for d in data:
if d is not None:
if fn.isSequence(d):
atformat,dims = PyTango.ImageAttr,[MAXDIM,MAXDIM]
m = d[0]
else:
m = d
break
attype = PyTango.DevDouble if (fn.isNumber(m) or fn.isBool(m)) else PyTango.DevString
self.add_attribute(
PyTango.ImageAttr(aname,attype,writable,MAXDIM,MAXDIM),
self.read_dyn_attr,None,self.is_dyn_attr_allowed)
self.add_attribute(
PyTango.SpectrumAttr(aname+'_t',PyTango.DevDouble, writable,MAXDIM),
self.read_dyn_attr,None,self.is_dyn_attr_allowed)
self.add_attribute(
PyTango.SpectrumAttr(aname+'_d',PyTango.DevString, writable,MAXDIM),
self.read_dyn_attr,None,self.is_dyn_attr_allowed)
#ARRAY
self.add_attribute(atformat(aname+'_r',attype, writable,*dims),
self.read_dyn_attr,None,self.is_dyn_attr_allowed)
#LAST VALUE
self.add_attribute(PyTango.Attr(aname+'_l',attype,PyTango.AttrWriteType.READ),
self.read_dyn_attr,None,self.is_dyn_attr_allowed)
#LAST DATE
self.add_attribute(
PyTango.Attr(aname+'_ld',PyTango.DevString,PyTango.AttrWriteType.READ),
self.read_dyn_attr,None,self.is_dyn_attr_allowed)
self.add_attribute(
PyTango.Attr(aname+'_rg',PyTango.DevString,PyTango.AttrWriteType.READ),
self.read_dyn_attr,None,self.is_dyn_attr_allowed)
#Then add the data to Cache values, so IsDataReady will return True
t = fn.now()
self.RemoveCachedAttribute(attribute)
self.AttrData[attribute] = (t,atformat,attype,values)
print('Done: %s,%s,%s,%s,%d'%(attribute,t,atformat,attype,len(values)))
except:
print(traceback.format_exc())