def on_step_run(self):
"""
Handler called whenever a step is executed. Note that this signal
is only emitted in realtime mode or if a protocol is running.
Plugins that handle this signal must emit the on_step_complete
signal once they have completed the step. The protocol controller
will wait until all plugins have completed the current step before
proceeding.
return_value can be one of:
None
'Repeat' - repeat the step
or 'Fail' - unrecoverable error (stop the protocol)
"""
app = get_app()
logger.info('[AnalystRemotePlugin] on_step_run(): step #%d',
app.protocol.current_step_number)
# If `acquire` is `True`, start acquisition
options = self.get_step_options()
if options['acquire']:
app_values = self.get_app_values()
try:
if self.timeout_id is not None:
# Timer was already set, so cancel previous timer.
gobject.source_remove(self.timeout_id)
self.remote = AnalystRemoteControl(app_values['subscribe_uri'],
app_values['request_uri'])
self.remote.start_acquisition()
self.timeout_id = gobject.timeout_add(100,
self.remote_check_tick)
except:
print "Exception in user code:"
print '-'*60
traceback.print_exc(file=sys.stdout)
print '-'*60
# An error occurred while initializing Analyst remote control.
emit_signal('on_step_complete', [self.name, 'Fail'])
else:
emit_signal('on_step_complete', [self.name, None])
class AnalystRemotePlugin(Plugin, AppDataController, StepOptionsController):
"""
This class is automatically registered with the PluginManager.
"""
implements(IPlugin)
version = get_plugin_info(path(__file__).parent).version
plugin_name = get_plugin_info(path(__file__).parent).plugin_name
'''
AppFields
---------
A flatland Form specifying application options for the current plugin.
Note that nested Form objects are not supported.
Since we subclassed AppDataController, an API is available to access and
modify these attributes. This API also provides some nice features
automatically:
-all fields listed here will be included in the app options dialog
(unless properties=dict(show_in_gui=False) is used)
-the values of these fields will be stored persistently in the microdrop
config file, in a section named after this plugin's name attribute
'''
AppFields = Form.of(
String.named('subscribe_uri').using(optional=True),
String.named('request_uri').using(optional=True),
)
'''
StepFields
---------
A flatland Form specifying the per step options for the current plugin.
Note that nested Form objects are not supported.
Since we subclassed StepOptionsController, an API is available to access and
modify these attributes. This API also provides some nice features
automatically:
-all fields listed here will be included in the protocol grid view
(unless properties=dict(show_in_gui=False) is used)
-the values of these fields will be stored persistently for each step
'''
StepFields = Form.of(
Boolean.named('acquire').using(default=False, optional=True),
)
def __init__(self):
self.name = self.plugin_name
self.timeout_id = None
self.remote = None
def on_step_run(self):
"""
Handler called whenever a step is executed. Note that this signal
is only emitted in realtime mode or if a protocol is running.
Plugins that handle this signal must emit the on_step_complete
signal once they have completed the step. The protocol controller
will wait until all plugins have completed the current step before
proceeding.
return_value can be one of:
None
'Repeat' - repeat the step
or 'Fail' - unrecoverable error (stop the protocol)
"""
app = get_app()
logger.info('[AnalystRemotePlugin] on_step_run(): step #%d',
app.protocol.current_step_number)
# If `acquire` is `True`, start acquisition
options = self.get_step_options()
if options['acquire']:
app_values = self.get_app_values()
try:
if self.timeout_id is not None:
# Timer was already set, so cancel previous timer.
gobject.source_remove(self.timeout_id)
self.remote = AnalystRemoteControl(app_values['subscribe_uri'],
app_values['request_uri'])
self.remote.start_acquisition()
self.timeout_id = gobject.timeout_add(100,
self.remote_check_tick)
except:
print "Exception in user code:"
print '-'*60
traceback.print_exc(file=sys.stdout)
print '-'*60
# An error occurred while initializing Analyst remote control.
emit_signal('on_step_complete', [self.name, 'Fail'])
else:
emit_signal('on_step_complete', [self.name, None])
def remote_check_tick(self):
if self.remote is not None:
try:
if self.remote.acquisition_complete():
# Acquisition is complete so notify step complete.
self.remote.reset()
emit_signal('on_step_complete', [self.name, None])
self.timeout_id = None
self.remote = None
return False
else:
print "Waiting for acquisition to complete..."
except:
print "Exception in user code:"
print '-'*60
traceback.print_exc(file=sys.stdout)
print '-'*60
emit_signal('on_step_complete', [self.name, 'Fail'])
self.timeout_id = None
self.remote = None
return False
return True
def on_step_options_swapped(self, plugin, old_step_number, step_number):
"""
Handler called when the step options are changed for a particular
plugin. This will, for example, allow for GUI elements to be
updated based on step specified.
Parameters:
plugin : plugin instance for which the step options changed
step_number : step number that the options changed for
"""
pass
def on_step_swapped(self, old_step_number, step_number):
"""