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#!/usr/bin/env python3
"""
_GetScenario_
Util to retrieve a Scenario implementation
Searches Impl directory for the named scenario and imports it
"""
def getScenario(scenarioName):
"""
_getScenario_
Util to load the scenario implementation.
Assumes that module exists at:
Configuration.DataProcessing.Impl.<scenarioName>.py
"""
moduleName = "Configuration.DataProcessing.Impl.%s" % scenarioName
try:
module = __import__(moduleName,
globals(), locals(), [scenarioName])#, -1)
except ImportError as ex:
msg = "Unable to load Scenario Module:\n"
msg += "%s\n%s\n" % (moduleName, str(ex))
raise RuntimeError(msg)
instance = getattr(module, scenarioName, None)
if instance == None:
msg = "Unable to retrieve instance of Scenario class:"
msg += "%s\n From Module\n%s" % (scenarioName, moduleName)
return instance()
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