def connect(self):
root.info("Connecting to {0}".format(self.device_name))
if self.device is not None:
self.disconnect()
try:
dev_future = ptf.DeviceProxy(self.device_name, wait=False)
except pt.DevFailed as e:
root.error("DeviceProxy returned error {0}".format(str(e)))
return False
dev_future.add_done_callback(self.connected_cb)
def connect(self):
self.disconnect()
root.info("Connecting to {0}".format(self.device_name))
self.device = None
self.set_state(pt.DevState.UNKNOWN)
try:
dev_future = ptf.DeviceProxy(self.device_name, wait=False)
except pt.DevFailed as e:
root.error("DeviceProxy returned error {0}".format(str(e)))
return False
dev_future.add_done_callback(self.connected_cb)
def connect(self):
"""
Disconnect from camera by cancelling all outstanding commands.
Then create new deviceproxy object.
:return:
"""
self.disconnect()
root.info("Connecting to {0}".format(self.device_name))
self.device = None
self.set_state(pt.DevState.UNKNOWN)
try:
dev_future = ptf.DeviceProxy(self.device_name, wait=False)
except pt.DevFailed as e:
root.error("DeviceProxy returned error {0}".format(str(e)))
return False
dev_future.add_done_callback(self.connected_cb)
def startFactory(self):
self.logger.info("Starting TangoAttributeFactory")
self.d = deferred_from_future(
tangof.DeviceProxy(self.device_name, wait=False))
self.d.addCallbacks(self.connection_success, self.connection_fail)
return self.d
subscriber, str(e)))
for rem_sub in remove_list:
self.remove_subscriber(rem_sub)
def get_attribute(self):
return self.attr_result
def set_attribute(self, attr):
if type(attr) in [DeviceCommand, AttributeWrapper]:
self.attr_result = attr.get_attribute()
else:
self.attr_result = attr
root.debug("set attribute \"{0}\" to value {1}".format(
self.name, self.attr_result.value))
self.notify_subscribers()
if __name__ == "__main__":
dev = ptf.DeviceProxy("sys/tg_test/1")
state_dc = DeviceCommand("state", "read", dev, recurrent=False, period=1.0)
state_at = AttributeWrapper("state")
state_dc.add_subscriber(state_at.set_attribute)
delay_dc = DeviceCommand("delay01", "delay", dev, 2.0)
state_dc.add_condition(delay_dc)
gain_dc = DeviceCommand("double_scalar", "read", dev)
gain_dc.add_condition(
state_at, invalid_range=[pt.DevState.UNKNOWN, pt.DevState.FAULT])
state_dc.start()
delay_dc.start()
gain_dc.start()