def do_instance_alloc(
self,
component_handle,
tasklet_info,
instance_url,
):
"""Create a tasklet instance
Arguments:
component_handle - the handle associated with this
component
tasklet_info - information about the tasklet that is
being created
instance_url - the instance URL
Returns:
An instance handle
"""
instance_handle = rwtasklet.InstanceHandle()
# NB: this is essentially the reason for the metaclass. Here we
# are using the new tasklet type that was created above.
tasklet = tasklet_type(tasklet_info)
# Add the new tasklet to the dict of tasklets and use the
# component and instances handles (as a pair) to define the
# key.
self.tasklets[(component_handle, instance_handle)] = tasklet
return instance_handle
def do_component_init(self):
"""This function is called once during the compoenent
initialization.
"""
logger.debug("RwDtsScheduler: do_component_init function called")
component_handle = RwTaskletPlugin.ComponentHandle()
return component_handle
def do_instance_alloc(self, component_handle, tasklet_info, instance_url):
"""This function is called for each new instance of the tasklet.
The tasklet specific information such as scheduler instance,
trace context, logging context are passed in 'tasklet_info' variable.
This function stores the tasklet information locally.
"""
logger.debug("RwdtstaskletPython: do_instance_alloc function called")
self.taskletinfo = tasklet_info
# Save the scheduler instance and tasklet instance objects
#self.rwsched = tasklet_info.rwsched_instance
#self.tasklet = tasklet_info.rwsched_tasklet_info
#self.rwlog_instance = tasklet_info.rwlog_instance
tasklet_logger = rwlogger.RwLogger(subcategory="rw-vcs",
log_hdl=self.taskletinfo.rwlog_ctx)
logger.addHandler(tasklet_logger)
# After this point, all logger calls will log events to rw_vcs using
# the tasklets rwlog handle
logger.debug("Added rwlogger handler to tasklet logger")
instance_handle = RwTaskletPlugin.InstanceHandle()
return instance_handle
def do_instance_alloc(self, component_handle, tasklet_info, instance_url):
"""This function is called for each new instance of the tasklet.
The tasklet specific information such as scheduler instance,
trace context, logging context are passed in 'tasklet_info' variable.
This function stores the tasklet information locally.
"""
logger.debug("RwDtsScheduler: do_instance_alloc function called")
self.taskletinfo = tasklet_info
instance_handle = RwTaskletPlugin.InstanceHandle()
return instance_handle
def setUpScheduler(self):
logger.debug("setUpScheduler")
instance_url = RwTaskletPlugin._RWExecURL()
logger.debug("main: url=%s type=%s" % (instance_url, type(instance_url)))
sched = RwDtsScheduler(self)
component_handle = sched.component_init()
sched_instance_handle = sched.instance_alloc(component_handle, self.taskletinfo, instance_url)
sched.instance_start(component_handle, sched_instance_handle)
self.sched = sched
logger.debug("main: component=%s type=%s" % (component_handle, type(component_handle)))
def do_component_init(self):
"""Initialize the component
This function initializes the component and returns the
component handle.
Returns:
A component handle
"""
return rwtasklet.ComponentHandle()
def setUpScheduler(self):
logger.debug("setUpScheduler")
instance_url = RwTaskletPlugin._RWExecURL()
logger.debug("main: url=%s type=%s" %
(instance_url, type(instance_url)))
sched = RwDtsScheduler(self)
component_handle = sched.component_init()
sched_instance_handle = sched.instance_alloc(component_handle,
self.taskletinfo,
instance_url)
sched.instance_start(component_handle, sched_instance_handle)
self.sched = sched
logger.debug("main: component=%s type=%s" %
(component_handle, type(component_handle)))
foo = Callback()
#sub = SubscribeInsideXactExample(self)
self.dts_api = RwDts.Api.new(self.taskletinfo, # tasklet object
RwDtsToyTaskletYang.get_schema(), # Schema object
foo.rwdts_tasklet_state_change_cb, # The callback for DTS state change
#sub.rwdts_tasklet_state_change_cb,
self) # user data in the callback - in this case self
def do_instance_stop(self, component_handle, instance_handle):
logger.debug("RwdtstaskletPython: do_instance_stop function called")
if __name__ == "__main__":
#add your test code to execute this as a standalone program
tasklet = RwdtstaskletPython()
component_handle = tasklet.component_init()
logger.debug("main: componente=%s" % (component_handle))
logger.debug("main: component-type=%s" % type(component_handle))
tasklet_info = RwTaskletPlugin._RWTaskletInfo()
instance_url = RwTaskletPlugin._RWExecURL()
logger.debug("main: tasklet=%s" % (tasklet_info))
logger.debug("main: tasklet-type=%s" % type(tasklet_info))
logger.debug("main: url=%s" % (instance_url))
logger.debug("main: url-type=%s" % type(instance_url))
instance_handle = tasklet.instance_alloc(component_handle, tasklet_info, instance_url)
logger.debug("main: instance=%s" % (instance_handle))
logger.debug("main: instance-type=%s" % type(instance_handle))
tasklet.instance_start(component_handle, instance_handle)
foo = Callback()
#sub = SubscribeInsideXactExample(self)
self.dts_api = RwDts.Api.new(self.taskletinfo, # tasklet object
RwDtsToyTaskletYang.get_schema(), # Schema object
foo.rwdts_tasklet_state_change_cb, # The callback for DTS state change
#sub.rwdts_tasklet_state_change_cb,
self) # user data in the callback - in this case self
def do_instance_stop(self, component_handle, instance_handle):
logger.debug("RwdtstaskletPython: do_instance_stop function called")
if __name__ == "__main__":
#add your test code to execute this as a standalone program
tasklet = RwdtstaskletPython()
component_handle = tasklet.component_init()
logger.debug("main: componente=%s" % (component_handle))
logger.debug("main: component-type=%s" % type(component_handle))
tasklet_info = RwTaskletPlugin._RWTaskletInfo()
instance_url = RwTaskletPlugin._RWExecURL()
logger.debug("main: tasklet=%s" % (tasklet_info))
logger.debug("main: tasklet-type=%s" % type(tasklet_info))
logger.debug("main: url=%s" % (instance_url))
logger.debug("main: url-type=%s" % type(instance_url))
instance_handle = tasklet.instance_alloc(component_handle, tasklet_info, instance_url)
logger.debug("main: instance=%s" % (instance_handle))
logger.debug("main: instance-type=%s" % type(instance_handle))
tasklet.instance_start(component_handle, instance_handle)
