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types.py
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types.py
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# Copyright 2017, Google LLC All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from __future__ import absolute_import
import collections
import sys
from google.api import http_pb2
from google.iam.v1 import iam_policy_pb2
from google.iam.v1 import policy_pb2
from google.iam.v1.logging import audit_data_pb2
from google.protobuf import descriptor_pb2
from google.protobuf import duration_pb2
from google.protobuf import empty_pb2
from google.protobuf import field_mask_pb2
from google.protobuf import timestamp_pb2
from google.api_core.protobuf_helpers import get_messages
from google.cloud.pubsub_v1.proto import pubsub_pb2
# Define the default values for batching.
#
# This class is used when creating a publisher or subscriber client, and
# these settings can be altered to tweak Pub/Sub behavior.
# The defaults should be fine for most use cases.
BatchSettings = collections.namedtuple(
'BatchSettings',
['max_bytes', 'max_latency', 'max_messages'],
)
BatchSettings.__new__.__defaults__ = (
1000 * 1000 * 10, # max_bytes: documented "10 MB", enforced 10000000
0.05, # max_latency: 0.05 seconds
1000, # max_messages: 1,000
)
# Define the type class and default values for flow control settings.
#
# This class is used when creating a publisher or subscriber client, and
# these settings can be altered to tweak Pub/Sub behavior.
# The defaults should be fine for most use cases.
FlowControl = collections.namedtuple(
'FlowControl',
['max_bytes', 'max_messages', 'resume_threshold', 'max_requests',
'max_request_batch_size', 'max_request_batch_latency',
'max_lease_duration'],
)
FlowControl.__new__.__defaults__ = (
100 * 1024 * 1024, # max_bytes: 100mb
100, # max_messages: 100
0.8, # resume_threshold: 80%
100, # max_requests: 100
100, # max_request_batch_size: 100
0.01, # max_request_batch_latency: 0.01s
2 * 60 * 60, # max_lease_duration: 2 hours.
)
_shared_modules = [
http_pb2,
iam_policy_pb2,
policy_pb2,
audit_data_pb2,
descriptor_pb2,
duration_pb2,
empty_pb2,
field_mask_pb2,
timestamp_pb2,
]
_local_modules = [
pubsub_pb2,
]
names = ['BatchSettings', 'FlowControl']
for module in _shared_modules:
for name, message in get_messages(module).items():
setattr(sys.modules[__name__], name, message)
names.append(name)
for module in _local_modules:
for name, message in get_messages(module).items():
message.__module__ = 'google.cloud.pubsub_v1.types'
setattr(sys.modules[__name__], name, message)
names.append(name)
__all__ = tuple(sorted(names))