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# Copyright 2017 The TensorFlow Authors. 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.
# ==============================================================================
"""Information about histogram summaries."""
from tensorboard.compat.proto import summary_pb2
from tensorboard.plugins.histogram import plugin_data_pb2
PLUGIN_NAME = "histograms"
# The most recent value for the `version` field of the
# `HistogramPluginData` proto.
PROTO_VERSION = 0
def create_summary_metadata(display_name, description):
"""Create a `summary_pb2.SummaryMetadata` proto for histogram plugin data.
Returns:
A `summary_pb2.SummaryMetadata` protobuf object.
"""
content = plugin_data_pb2.HistogramPluginData(version=PROTO_VERSION)
return summary_pb2.SummaryMetadata(
display_name=display_name,
summary_description=description,
plugin_data=summary_pb2.SummaryMetadata.PluginData(
plugin_name=PLUGIN_NAME, content=content.SerializeToString()
),
)
def parse_plugin_metadata(content):
"""Parse summary metadata to a Python object.
Arguments:
content: The `content` field of a `SummaryMetadata` proto
corresponding to the histogram plugin.
Returns:
A `HistogramPluginData` protobuf object.
"""
if not isinstance(content, bytes):
raise TypeError("Content type must be bytes")
if content == b"{}":
# Old-style JSON format. Equivalent to an all-default proto.
return plugin_data_pb2.HistogramPluginData()
else:
result = plugin_data_pb2.HistogramPluginData.FromString(content)
if result.version == 0:
return result
# No other versions known at this time, so no migrations to do.
return result
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