89 lines
2.8 KiB
Python
89 lines
2.8 KiB
Python
# -*- coding: utf-8 -*- #
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# Copyright 2019 Google LLC. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Utilities for Edge ML API long-running operations."""
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from __future__ import absolute_import
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from __future__ import division
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from __future__ import unicode_literals
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from googlecloudsdk.api_lib.edgeml import util
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from googlecloudsdk.api_lib.util import waiter
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from googlecloudsdk.core import resources
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_MAX_WAIT_TIME_MS = 10 * 60 * 1000 # 10 minutes.
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_WAITING_MESSAGE = {
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'analyze': 'Analyzing Edge machine learning model. [{}]',
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'compile': 'Optimizing Edge machine learning model for Edge TPU. [{}]',
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'convert': 'Converting SavedModel to TF Lite model. [{}]',
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}
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class OperationsClient(object):
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"""Client for the Edge ML operations API.
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Attributes:
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client: Generated Edge ML API client.
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messages: Generated Edge ML API messages.
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"""
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def __init__(self, client=None, messages=None):
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self.client = client or util.GetClientInstance()
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self.messages = messages or util.GetMessagesModule(client)
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self._service = self.client.operations
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def Get(self, operation_ref):
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"""Calls get method for long-running operations.
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Args:
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operation_ref: Ref to long-running operation.
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Returns:
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edgeml.Operation message.
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"""
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return self.client.projects_operations.Get(
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self.messages.EdgemlOperationsGetRequest(
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name=operation_ref.RelativeName()))
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def WaitForOperation(self, operation):
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"""Wait until the operation is complete or times out.
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Args:
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operation: The operation resource to wait on.
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Returns:
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The operation resource when it has completed.
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Raises:
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OperationTimeoutError: When the operation polling times out.
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OperationError: When the operation completed with an error.
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"""
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poller = waiter.CloudOperationPollerNoResources(self._service)
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operation_ref = resources.REGISTRY.Parse(
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operation.name, collection='edgeml.operations')
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operation_type = operation_ref.Name().split('/')[0]
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message = _WAITING_MESSAGE.get(operation_type, 'Waiting for operation [{}]')
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return waiter.WaitFor(
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poller,
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operation_ref,
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message,
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pre_start_sleep_ms=1000,
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max_wait_ms=_MAX_WAIT_TIME_MS,
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exponential_sleep_multiplier=None,
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jitter_ms=None,
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wait_ceiling_ms=None,
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sleep_ms=5000)
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