Introduction
The CDB Simulated Components are a quick way to make a component available for development and testing. They could be used to prototype basic functionality and to mock-up components in order to prepare module tests which need to interact with other components.
Preparations
Create a module for the tests that are going to be performed:
> getTemplateForDirectory MODROOT_WS sim_comp
> cd sim_comp
Put the IDL file:
#ifndef _MOUNT_EXAMPLE_IDL_
#define _MOUNT_EXAMPLE_IDL_
#include <acscomponent.idl>
#pragma prefix "alma"
module workshop
{
interface MountExample : ACS::ACSComponent {
void objfix (in double az, in double elev);
};
};
#endif
Configure the Manager in the CDB:
<Manager xmlns:cdb="urn:schemas-cosylab-com:CDB:1.0" xmlns="urn:schemas-cosylab-com:Manager:1.0" xmlns:log="urn:schemas-cosylab-com:LoggingConfig:1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" Timeout="50.0" ContainerPingInterval="20.0">
<Startup> </Startup>
<ServiceComponents>
<cdb:e string="Log"/>
<cdb:e string="LogFactory"/>
<cdb:e string="NotifyEventChannelFactory"/>
<cdb:e string="MC_NotifyEventChannelFactory" />
<cdb:e string="LoggingNotifyEventChannelFactory" />
<cdb:e string="MC_LoggingNotifyEventChannelFactory" />
<cdb:e string="LoggingChannel@LOGGING.channels"/>
<cdb:e string="ArchivingChannel@ARCHIVING.channels"/>
<cdb:e string="AlarmNotifyEventChannelFactory" />
<cdb:e string="MC_AlarmNotifyEventChannelFactory" />
<cdb:e string="InterfaceRepository"/>
<cdb:e string="AlarmChannel" />
<cdb:e string="CDB"/>
<cdb:e string="ACSLogSvc"/>
<cdb:e string="AcsAlarmService"/>
</ServiceComponents>
<LoggingConfig>
<log:e Name="jacorb@Manager" minLogLevel="5" minLogLevelLocal="5"/>
</LoggingConfig>
</Manager>
Configure the Component in the CDB:
<Components xmlns="urn:schemas-cosylab-com:Components:1.0" xmlns:cdb="urn:schemas-cosylab-com:CDB:1.0" xmlns:baci="urn:schemas-cosylab-com:BACI:1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<e Name="MOUNT" Code="Acssim.Servants.Simulator"
Type="IDL:alma/ACS_COURSE/MountExample:1.0"
Container="pyContainer"
ImplLang="py"/>
</Components>
Prepare the Makefile:
> cp src/Makefile test/Makefile
Add the following to IDL entry:
...
#
# IDL Files and flags
#
IDL_FILES = MountExample
TAO_IDLFLAGS =
USER_IDL =
MountExampleStubs_LIBS = acscomponentStubs
...
Generate code stubs and skeletons:
Simulated Component
The simulation code needs to be put in the CDB:
<SimulatedComponent xmlns="urn:schemas-cosylab-com:SimulatedComponent:1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<pythonImports>
from acstime import Duration
</pythonImports>
<initialize>
logger=parameters[0].getLogger()
logger.logInfo("Component initialized!")
</initialize>
<cleanUp>
print('Simulated component cleaning up')
</cleanUp>
<_corbaMethod Name="objfix" Timeout="0">
print("\nobjfix called with params ", parameters, "\n")
</_corbaMethod>
</SimulatedComponent>
Client
A simple client could be prepared:
from Acspy.Clients.SimpleClient import PySimpleClient
client = PySimpleClient()
m = client.getComponent("MOUNT")
m.objfix(3,6)
Executing
Start ACS:
> cd sim_comp
> export ACS_CDB=$PWD/test
> export IDL_PATH="-I$PWD/idl $IDL_PATH"
> acsStart
On a different console start pyContainer:
> cd sim_comp
> export PYTHONPATH=$PWD/lib/python/site-packages:$PYTHONPATH
> acsStartContainer -py pyContainer
Execute objexp or the client in a third console:
> export PYTHONPATH=$PWD/lib/python/site-packages:$PYTHONPATH
> python test/client.py
The expected behavior is that no error is shown in "Console 3" and "Console 2 shold have the following output:
2020-07-25T23:45:52.198 INFO [acsStartContainer] Running the container with these arguments: 'ACSStartContainerPy pyContainer -ORBendPoint giop:tcp:127.0.1.1:4000 -m corbaloc::127.0.1.1:3000/Manager'
ContainerStatusMsg: Startup begins
2020-07-25T23:45:53.027 AlarmSystemInterfaceFactory init - Using ACS alarm system
ContainerStatusMsg: ORB initialization begins
ContainerStatusMsg: ORB initialization ends
ContainerStatusMsg: Manager access initialization begins
ContainerStatusMsg: Manager access initialization ends
ContainerStatusMsg: Automatic component loading begins
2020-07-25T23:45:53.077 pyContainer taggedmessage - Info message from the manager: Startup statistics: 0 components queued to be activated.
2020-07-25T23:45:53.079 pyContainer taggedmessage - Info message from the manager: Startup statistics: 0 of 0 components activated.
ContainerStatusMsg: Automatic component loading ends
ContainerStatusMsg: Ready
2020-07-25T23:45:53.168 pyContainer getCDBInfo - No container information found in the CDB
2020-07-25T23:45:53.183 pyContainer __init__ - Container pyContainer waiting for requests
2020-07-25T23:45:53.187 pyContainer __init__ - Container pyContainer used libraries from /home/almamgr/mod/src/../lib/python/site-packages/:/alma/ACS-2020AUG/ACSSW/lib/python/site-packages:
ContainerStatusMsg: Startup ends
2020-07-25T23:45:54.869 pyContainer activate_component_async - Starting async activation of MOUNT(type IDL:alma/workshop/MountExample:1.0)
2020-07-25T23:45:54.871 pyContainer run - Activating MOUNT (type IDL:alma/workshop/MountExample:1.0)
2020-07-25T23:45:54.872 pyContainer aboutToActivate - The container is asking the clearance to activate MOUNT
2020-07-25T23:45:54.873 pyContainer _aboutToProcess - The container is not dealing with MOUNT: the operation can go ahead
2020-07-25T23:45:54.877 pyContainer aboutToActivate - The container has been cleared to activate MOUNT
2020-07-25T23:45:55.075 loggingts -- Successfully loaded component code. [ logName=LOG_CompAct_Loading_OK TimeMillis=194 CompName=MOUNT ]
2020-07-25T23:45:55.130 loggingts -- Successfully instantiated component. [ logName=LOG_CompAct_Instance_OK TimeMillis=47 CompName=MOUNT ]
2020-07-25T23:45:55.442 MOUNT stringFunction - Component initialized!
2020-07-25T23:45:55.444 Servants.Executor _execute - initialize return value looks like:None of type:<class 'NoneType'>
2020-07-25T23:45:55.448 EventDispatcher (MOUNT) setupEventDispatching - Setting up event dispatching.
2020-07-25T23:45:55.459 EventDispatcher (MOUNT) handleFrequencies - No event frequencies defined.
2020-07-25T23:45:55.463 EventDispatcher (MOUNT) handleResponses - No event frequencies defined.
2020-07-25T23:45:55.508 loggingts -- Successfully activated component with Corba. [ logName=LOG_CompAct_Corba_OK TimeMillis=0 CompName=MOUNT ]
2020-07-25T23:45:55.510 loggingts -- Successfully initialized component. [ logName=LOG_CompAct_Init_OK TimeMillis=0 CompName=MOUNT ]
2020-07-25T23:45:55.560 pyContainer activate_component - Activated component: MOUNT
2020-07-25T23:45:55.571 pyContainer activate_component - Component 'MOUNT' has KeepAliveTime '0'.
2020-07-25T23:45:55.576 pyContainer activated - The container terminated the activation of MOUNT: awakening waiting threads
2020-07-25T23:45:55.579 pyContainer _processTerminated - The container terminated dealing with MOUNT
2020-07-25T23:45:55.582 pyContainer run - Calling maci::CBComponentInfo::done with descOut.id_tag = 1 for 'MOUNT'
2020-07-25T23:45:55.601 pyContainer run - Call to maci::CBComponentInfo::done with descOut.id_tag = 1 for 'MOUNT' completed
objfix called with params [3.0, 6.0, <Acssim.Servants.Simulator.Simulator_IDL:alma/workshop/MountExample:1.0 object at 0x7f0608194d30>]
2020-07-25T23:45:55.610 Servants.Executor _execute - objfix return value looks like:None of type:<class 'NoneType'>
2020-07-25T23:45:55.689 pyContainer aboutToDeactivate - The container is asking the clearance to deactivate MOUNT
2020-07-25T23:45:55.693 pyContainer _aboutToProcess - The container is not dealing with MOUNT: the operation can go ahead
2020-07-25T23:45:55.696 pyContainer aboutToDeactivate - The container has been cleared to activate MOUNT
2020-07-25T23:45:55.736 pyContainer deactivate_component - Deactivating component: MOUNT
Simulated component cleaning up
2020-07-25T23:45:55.741 Servants.Executor _execute - cleanUp return value looks like:None of type:<class 'NoneType'>
2020-07-25T23:45:55.747 pyContainer deactivated - The container terminated the deactivation of MOUNT: awakening waiting threads
2020-07-25T23:45:55.749 pyContainer _processTerminated - The container terminated dealing with MOUNT
