def __init__(self, timeout_spawn):
"""
@param timeout_spawn Default timeout in secs for the RUNNING event.
"""
self._timeout_spawn = timeout_spawn
self._pd_client = ProcessDispatcherServiceClient()
self._agent_launcher = AgentLauncher(self._pd_client)
def _get_dsa_client(self, instrument_device, dsa_instance):
"""
Launch the agent and return a client
"""
fake_process = FakeProcess()
fake_process.container = self.container
clients = DataAcquisitionManagementServiceDependentClients(
fake_process)
config_builder = ExternalDatasetAgentConfigurationBuilder(clients)
try:
config_builder.set_agent_instance_object(dsa_instance)
self.agent_config = config_builder.prepare()
except Exception as e:
log.error('failed to launch: %s', e, exc_info=True)
raise ServerError('failed to launch')
self._dsa_pid = self.dams.start_external_dataset_agent_instance(
dsa_instance._id)
log.debug("_get_dsa_client CFG")
return ResourceAgentClient(instrument_device._id,
process=FakeProcess())
dispatcher = ProcessDispatcherServiceClient()
launcher = AgentLauncher(dispatcher)
log.debug("Launching agent process!")
self._dsa_pid = launcher.launch(
self.agent_config,
config_builder._get_process_definition()._id)
if not self._dsa_pid:
raise ServerError(
"Launched external dataset agent instance but no process_id")
config_builder.record_launch_parameters(self.agent_config)
launcher.await_launch(10.0)
return ResourceAgentClient(instrument_device._id,
process=FakeProcess())
