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Map service BatchSize defaults/maxes

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Randy Westergren 2019-08-21 17:45:37 -04:00
parent ccceb70397
commit 210b8b24eb
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1 changed files with 20 additions and 1 deletions
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21
moto/awslambda/models.py
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@ -435,9 +435,28 @@ class EventSourceMapping(BaseModel):
self.event_source_arn = spec['EventSourceArn']
self.uuid = str(uuid.uuid4())
self.last_modified = time.mktime(datetime.datetime.utcnow().timetuple())
self.batch_size = '' # Default to blank
# BatchSize service default/max mapping
batch_size_map = {
'kinesis': (100, 10000),
'dynamodb': (100, 1000),
'sqs': (10, 10),
}
source_type = self.event_source_arn.split(":")[2].lower()
batch_size_entry = batch_size_map.get(source_type)
if batch_size_entry:
# Use service default if not provided
batch_size = int(spec.get('BatchSize', batch_size_entry[0]))
if batch_size > batch_size_entry[1]:
raise ValueError(
"InvalidParameterValueException",
"BatchSize {} exceeds the max of {}".format(batch_size, batch_size_entry[1]))
else:
self.batch_size = batch_size
# optional
self.starting_position = spec.get('StartingPosition', 'TRIM_HORIZON')
self.batch_size = spec.get('BatchSize', 10) # TODO: Add source type-specific defaults
self.enabled = spec.get('Enabled', True)
self.starting_position_timestamp = spec.get('StartingPositionTimestamp',
None)