Spaces:
Running
Running
File size: 1,694 Bytes
375a1cf |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 |
# Copyright 2017 gRPC authors.
#
# 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.
"""API metadata conversion utilities."""
import collections
_Metadatum = collections.namedtuple(
"_Metadatum",
(
"key",
"value",
),
)
def _beta_metadatum(key, value):
beta_key = key if isinstance(key, (bytes,)) else key.encode("ascii")
beta_value = value if isinstance(value, (bytes,)) else value.encode("ascii")
return _Metadatum(beta_key, beta_value)
def _metadatum(beta_key, beta_value):
key = beta_key if isinstance(beta_key, (str,)) else beta_key.decode("utf8")
if isinstance(beta_value, (str,)) or key[-4:] == "-bin":
value = beta_value
else:
value = beta_value.decode("utf8")
return _Metadatum(key, value)
def beta(metadata):
if metadata is None:
return ()
else:
return tuple(_beta_metadatum(key, value) for key, value in metadata)
def unbeta(beta_metadata):
if beta_metadata is None:
return ()
else:
return tuple(
_metadatum(beta_key, beta_value)
for beta_key, beta_value in beta_metadata
)
|