Context component:

        #    LOGGER.warning(MSG.format(str(message.topic)))

        #    continue

        data = json.loads(message.content)

        if 'context_id' in data and EventTopicEnum.CONTEXT in topic_enums:

        if 'context_id' in data:

            if EventTopicEnum.CONTEXT not in topic_enums: continue

            yield ContextEvent(**data)

        elif 'topology_id' in data and EventTopicEnum.TOPOLOGY in topic_enums:

        elif 'topology_id' in data:

            if EventTopicEnum.TOPOLOGY not in topic_enums: continue

            yield TopologyEvent(**data)

        elif 'device_id' in data and EventTopicEnum.DEVICE in topic_enums:

        elif 'device_id' in data:

            if EventTopicEnum.DEVICE not in topic_enums: continue

            yield DeviceEvent(**data)

        elif 'opticalconfig_id' in data and EventTopicEnum.OPTICALCONFIG in topic_enums:

        elif 'opticalconfig_id' in data:

            if EventTopicEnum.OPTICALCONFIG not in topic_enums: continue

            yield DeviceEvent(**data)

        elif 'link_id' in data and EventTopicEnum.LINK in topic_enums:

        elif 'link_id' in data:

            if EventTopicEnum.LINK not in topic_enums: continue

            yield LinkEvent(**data)

        elif 'service_id' in data and EventTopicEnum.SERVICE in topic_enums:

        elif 'service_id' in data:

            if EventTopicEnum.SERVICE not in topic_enums: continue

            yield ServiceEvent(**data)

        elif 'slice_id' in data and EventTopicEnum.SLICE in topic_enums:

        elif 'slice_id' in data:

            if EventTopicEnum.SLICE not in topic_enums: continue

            yield SliceEvent(**data)

        elif 'connection_id' in data and EventTopicEnum.CONNECTION in topic_enums:

        elif 'connection_id' in data:

            if EventTopicEnum.CONNECTION not in topic_enums: continue

            yield ConnectionEvent(**data)

        else:

            MSG = 'Unable to identify EventClass for Message({:s}). Ignoring...'