def call_method_create_response(tomo_num,
method_name,
args=(),
GET_FRAME_method=False):
if type(args) not in (tuple, list):
args = (args, )
tomograph = TOMOGRAPHS[tomo_num - 1]
# tomo_num - 1, because in TOMOGRAPHS list numeration begins from 0
try:
result = getattr(tomograph, method_name)(*args)
except ModExpError as e:
e.log(exp_id='')
return e.create_response()
"""
except Exception as e:
logger.info(e.message)
try:
return create_response(success=False, error="unexpected exception", exception_message=e.message)
except Exception as e2:
logger.info(e.message)
return create_response(success=False, error="unexpected exception")
"""
if not GET_FRAME_method:
return create_response(success=True, result=result)
else:
success, ModExpError_if_fail = prepare_send_frame(
raw_image_with_metadata=result, experiment=None)
if not success:
return ModExpError_if_fail.create_response()
return send_file('../' + FRAME_PNG_FILENAME, mimetype='image/png')
def call_method_create_response(tomo_num, method_name, args=(), GET_FRAME_method=False):
if type(args) not in (tuple, list):
args = (args,)
tomograph = TOMOGRAPHS[tomo_num - 1]
# tomo_num - 1, because in TOMOGRAPHS list numeration begins from 0
try:
result = getattr(tomograph, method_name)(*args)
except ModExpError as e:
e.log(exp_id='')
return e.create_response()
"""
except Exception as e:
logger.info(e.message)
try:
return create_response(success=False, error="unexpected exception", exception_message=e.message)
except Exception as e2:
logger.info(e.message)
return create_response(success=False, error="unexpected exception")
"""
if not GET_FRAME_method:
return create_response(success=True, result=result)
else:
success, ModExpError_if_fail = prepare_send_frame(raw_image_with_metadata=result, experiment=None)
if not success:
return ModExpError_if_fail.create_response()
return send_file('../' + FRAME_PNG_FILENAME, mimetype='image/png')
def check_state(tomo_num):
logger.info('\n\nREQUEST: CHECK STATE')
tomograph = TOMOGRAPHS[tomo_num - 1]
# tomo_num - 1, because in TOMOGRAPHS list numeration begins from 0
tomo_state, exception_message = tomograph.tomo_state()
return create_response(success=True,
result=tomo_state,
exception_message=exception_message)
def check_request(request_data):
""" Checks body part of request, if it is not empty and has JSON string try to load it to python object
:arg: 'request_data' - body part of request, type is undetermined in common case
:return:
"""
logger.info('Checking request...')
if not request_data:
logger.info('Request is empty!')
return False, None, create_response(success=False, error='Request is empty')
logger.info('Request is NOT empty! Checking request\'s JSON...')
try:
request_data_dict = json.loads(request_data)
except TypeError:
logger.info('Request has NOT JSON data!')
return False, None, create_response(success=False, error='Request has not JSON data')
else:
logger.info('Request has JSON data!')
return True, request_data_dict, ''
def check_request(request_data):
""" Checks body part of request, if it is not empty and has JSON string try to load it to python object
:arg: 'request_data' - body part of request, type is undetermined in common case
:return:
"""
logger.info('Checking request...')
if not request_data:
logger.info('Request is empty!')
return False, None, create_response(success=False,
error='Request is empty')
logger.info('Request is NOT empty! Checking request\'s JSON...')
try:
request_data_dict = json.loads(request_data)
except TypeError:
logger.info('Request has NOT JSON data!')
return False, None, create_response(success=False,
error='Request has not JSON data')
else:
logger.info('Request has JSON data!')
return True, request_data_dict, ''
def experiment_start(tomo_num):
logger.info('\n\nREQUEST: EXPERIMENT/START')
tomograph = TOMOGRAPHS[tomo_num - 1]
# tomo_num - 1, because in TOMOGRAPHS list numeration begins from 0
success, data, response_if_fail = check_request(request.data)
if not success:
return response_if_fail
logger.info('Checking generous format...')
if not (('experiment parameters' in data.keys()) and ('exp_id' in data.keys())):
logger.info('Incorrect format of keywords!')
return create_response(success=False, error='Incorrect format of keywords')
if not ((type(data['experiment parameters']) is dict) and (type(data['exp_id']) is unicode)):
logger.info('Incorrect format of types!')
return create_response(success=False, error='Incorrect format: incorrect types')
logger.info('Generous format is normal!')
exp_param = data['experiment parameters']
exp_param['exp_id'] = data['exp_id']
logger.info('Checking parameters...')
success, error = check_and_prepare_exp_parameters(exp_param)
if not success:
logger.info(error)
return create_response(success=success, error=error)
logger.info('Parameters are normal!')
tomo_state, exception_message = tomograph.tomo_state()
if tomo_state == 'unavailable':
return create_response(success=False, error="Could not connect with tomograph",
exception_message=exception_message)
elif tomo_state == 'experiment':
return create_response(success=False, error="On this tomograph experiment is running")
elif tomo_state != 'ready':
return create_response(success=False, error="Undefined tomograph state")
logger.info('Sending to storage leading to prepare...')
try:
send_to_storage(STORAGE_EXP_START_URI, data=request.data)
except ModExpError as e:
e.log(exp_id=exp_param['exp_id'])
return e.create_response()
logger.info('Experiment begins!')
if exp_param['advanced']:
pass
# thr = threading.Thread(target=carry_out_advanced_experiment, args=(tomograph, exp_param))
else:
thr = threading.Thread(target=tomograph.carry_out_simple_experiment, args=(exp_param,))
thr.start()
return create_response(True)
def experiment_stop(tomo_num):
logger.info('\n\nREQUEST: EXPERIMENT/STOP')
tomograph = TOMOGRAPHS[tomo_num - 1]
# tomo_num - 1, because in TOMOGRAPHS list numeration begins from 0
# success, exp_stop_reason_txt, response_if_fail = check_request(request.data)
# if not success:
# return response_if_fail
# if not exp_stop_reason_txt:
# exp_stop_reason_txt = "unknown"
exp_stop_reason_txt = "unknown"
if tomograph.current_experiment is not None:
tomograph.current_experiment.to_be_stopped = True
tomograph.current_experiment.stop_exception = ModExpError(error=exp_stop_reason_txt, stop_msg=SOMEONE_STOP_MSG)
return create_response(True)
def experiment_stop(tomo_num):
logger.info('\n\nREQUEST: EXPERIMENT/STOP')
tomograph = TOMOGRAPHS[tomo_num - 1]
# tomo_num - 1, because in TOMOGRAPHS list numeration begins from 0
# success, exp_stop_reason_txt, response_if_fail = check_request(request.data)
# if not success:
# return response_if_fail
# if not exp_stop_reason_txt:
# exp_stop_reason_txt = "unknown"
exp_stop_reason_txt = "unknown"
if tomograph.current_experiment is not None:
tomograph.current_experiment.to_be_stopped = True
tomograph.current_experiment.stop_exception = ModExpError(
error=exp_stop_reason_txt, stop_msg=SOMEONE_STOP_MSG)
return create_response(True)
def internal_server_error(exception):
logger.exception(exception)
return make_response(
create_response(success=False, error='Internal Server Error'), 500)
def not_found(exception):
logger.exception(exception)
return make_response(create_response(success=False, error='Not Found'),
404)
def incorrect_format(exception):
logger.exception(exception)
return make_response(
create_response(success=False, error='Incorrect Format'), 400)
def experiment_start(tomo_num):
logger.info('\n\nREQUEST: EXPERIMENT/START')
tomograph = TOMOGRAPHS[tomo_num - 1]
# tomo_num - 1, because in TOMOGRAPHS list numeration begins from 0
success, data, response_if_fail = check_request(request.data)
if not success:
return response_if_fail
logger.info('Checking generous format...')
if not (('experiment parameters' in data.keys()) and
('exp_id' in data.keys())):
logger.info('Incorrect format of keywords!')
return create_response(success=False,
error='Incorrect format of keywords')
if not ((type(data['experiment parameters']) is dict) and
(type(data['exp_id']) is unicode)):
logger.info('Incorrect format of types!')
return create_response(success=False,
error='Incorrect format: incorrect types')
logger.info('Generous format is normal!')
exp_param = data['experiment parameters']
exp_param['exp_id'] = data['exp_id']
logger.info('Checking parameters...')
success, error = check_and_prepare_exp_parameters(exp_param)
if not success:
logger.info(error)
return create_response(success=success, error=error)
logger.info('Parameters are normal!')
tomo_state, exception_message = tomograph.tomo_state()
if tomo_state == 'unavailable':
return create_response(success=False,
error="Could not connect with tomograph",
exception_message=exception_message)
elif tomo_state == 'experiment':
return create_response(success=False,
error="On this tomograph experiment is running")
elif tomo_state != 'ready':
return create_response(success=False,
error="Undefined tomograph state")
logger.info('Sending to storage leading to prepare...')
try:
send_to_storage(STORAGE_EXP_START_URI, data=request.data)
except ModExpError as e:
e.log(exp_id=exp_param['exp_id'])
return e.create_response()
logger.info('Experiment begins!')
if exp_param['advanced']:
pass
# thr = threading.Thread(target=carry_out_advanced_experiment, args=(tomograph, exp_param))
else:
thr = threading.Thread(target=tomograph.carry_out_simple_experiment,
args=(exp_param, ))
thr.start()
return create_response(True)
def internal_server_error(exception):
logger.exception(exception)
return make_response(create_response(success=False, error='Internal Server Error'), 500)
def not_found(exception):
logger.exception(exception)
return make_response(create_response(success=False, error='Not Found'), 404)
def incorrect_format(exception):
logger.exception(exception)
return make_response(create_response(success=False, error='Incorrect Format'), 400)
def check_state(tomo_num):
logger.info('\n\nREQUEST: CHECK STATE')
tomograph = TOMOGRAPHS[tomo_num - 1]
# tomo_num - 1, because in TOMOGRAPHS list numeration begins from 0
tomo_state, exception_message = tomograph.tomo_state()
return create_response(success=True, result=tomo_state, exception_message=exception_message)