Files
eco/acquisition/bs_data.py
T

108 lines
4.4 KiB
Python
Executable File

from bsread import Source
from bsread.h5 import receive
from bsread.avail import dispatcher
import zmq
import os
import data_api as api
import datetime
from threading import Thread
from .utilities import Acquisition
class BStools:
def __init__(self,
default_channel_list={'listname':[]},
default_file_path='%s',
elog=None):
self._default_file_path = default_file_path
self._default_channel_list = default_channel_list
self._elog = elog
def avail(self,*args,**kwargs):
return dispatcher.get_current_channels(*args,**kwargs)
def check_channel_list(self, printResult=True, printOnlineChannels=False):
all_available = set([i['name'] for i in self.avail()])
status = {}
for listname in self._default_channel_list.keys():
tch = set(self._default_channel_list[listname])
status[listname] = {}
status[listname]['online'] = tch.intersection(all_available)
status[listname]['offline'] = tch.difference(all_available)
if printResult:
for listname in status.keys():
if printOnlineChannels:
print('#### Online Channels in {} ####'.format(listname))
print('\n'.join(status[listname]['online']))
print('\n')
print('#### Offline Channels in {} ####'.format(listname))
print('\n'.join(status[listname]['offline']))
else:
return status
def cleanup_channel_list(self,listname):
status = self.check_channel_list(printResult=False)
self._default_channel_list[listname] = \
list(set(self._default_channel_list[listname]).difference(set(status[listname]['offline'])))
print('#### Temporarily removed Offline Channels in {} ####'.format(listname))
print('\n'.join(status[listname]['offline']))
print('NB: The channels will be back after restart if they originate from a config file.')
def h5(self,fina=None,channel_list=None,N_pulses=None,default_path=True,queue_size=100):
if default_path:
fina = self._default_file_path%fina
if os.path.isfile(fina):
print('!!! File %s already exists, would you like to delete it?'%fina)
if input('(y/n)')=='y':
print('Deleting %s .'%fina)
os.remove(fina)
else:
return
if not channel_list:
print('No channels specified, using default list \'%s\' instead.'%list(self._default_channel_list.keys())[0])
channel_list = self._default_channel_list[list(self._default_channel_list.keys())[0]]
source = dispatcher.request_stream(channel_list)
mode = zmq.SUB
receive(source, fina, queue_size=queue_size, mode=mode, n_messages=N_pulses)
def db(self,channel_list=None,start_time_delta=dict(),end_time_delta=dict(),default_path=True):
if not channel_list:
print('No channels specified, using default list \'%s\' instead.'%list(self._default_channel_list.keys())[0])
channel_list = self._default_channel_list[list(self._default_channel_list.keys())[0]]
now = datetime.datetime.now()
end = now-datetime.timedelta(**end_time_delta)
start = end-datetime.timedelta(**start_time_delta)
return api.get_data(channels=channel_list, start=start, end=end)
def h5_db(self,fina,channel_list=None,start_time_delta=dict(),end_time_delta=dict(),default_path=True):
data = self.db(channel_list=None,start_time_delta=start_time_delta,end_time_delta=end_time_delta,default_path=True)
if default_path:
fina = self._default_file_path%fina
if os.path.isfile(fina):
print('!!! File %s already exists, would you like to delete it?'%fina)
if input('(y/n)')=='y':
print('Deleting %s .'%fina)
os.remove(fina)
else:
return
data.to_hdf(fina,"/data")
def acquire(self,file_name=None,Npulses=100):
file_name += '.h5'
def acquire():
self.h5(fina=file_name,N_pulses=Npulses)
return Acquisition(acquire=acquire,acquisition_kwargs={'file_names':[file_name], 'Npulses':Npulses},hold=False)
def wait_done(self):
self.check_running()
self.check_still_running()