def nmt_task(id):
""" Task for automatically processing a translation.
This task is responsible for requesting the Marian-NMT server to
translate a given text from English to Spanish.
The Translation aggregate is already created and persisted, so this
task must fetch its data. If for some reason the application goes
down, it's possible to reprocess "requested" translations adding
their IDs to the workers queue.
Args:
id (string): The translation aggregate UUID4 string.
"""
translation = repository.get(id)
translation = translator.nmt_process(translation)
repository.save(translation)
projections_task.send(id)
def callback(id=None):
"""Callback route to update a Translation resource.
This route is used by an external translation service to notify it
finished processing a text.
Args:
id (str): The Translation aggregate ID to update it.
"""
if id:
logger.debug(f'processing POST "/callback/{id}"')
translation = repository.get(id)
translation = translator.get(translation)
repository.save(translation)
tasks.projections_task.send(id)
return jsonify(success=True)
return jsonify(error=404, text="Resource not found.")
def translation_task(id):
""" Task for processing a translation.
This task is responsible for requesting the translation service to
translated a given text from English to Spanish.
The Translation aggregate is already created and persisted, so this
task must fetch its data. If for some reason the application goes
down, it's possible to reprocess "requested" translations adding
their IDs to the workers queue.
After sending a request to the translation service, this worker will
persist a tracking identifier and poll this translation until it's
finished.
Args:
id (string): The translation aggregate UUID4 string.
"""
translation = repository.get(id)
translation = translator.process(translation)
repository.save(translation)
projections_task.send(id)