93 lines
3.3 KiB
Python
93 lines
3.3 KiB
Python
# -*- coding: utf-8 -*- #
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# Copyright 2015 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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"""Cloud Pub/Sub topics publish command."""
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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.pubsub import topics
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from googlecloudsdk.calliope import base
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from googlecloudsdk.command_lib.pubsub import flags
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from googlecloudsdk.command_lib.pubsub import resource_args
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from googlecloudsdk.command_lib.pubsub import util
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from googlecloudsdk.core import properties
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from googlecloudsdk.core.resource import resource_projector
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from googlecloudsdk.core.util import http_encoding
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def _Run(args, message_body, legacy_output=False):
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"""Publishes a message to a topic."""
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client = topics.TopicsClient()
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attributes = util.ParseAttributes(args.attribute, messages=client.messages)
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ordering_key = getattr(args, 'ordering_key', None)
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topic_ref = args.CONCEPTS.topic.Parse()
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result = client.Publish(topic_ref, http_encoding.Encode(message_body),
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attributes, ordering_key)
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if legacy_output:
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# We only allow to publish one message at a time, so do not return a
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# list of messageId.
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result = resource_projector.MakeSerializable(result)
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result['messageIds'] = result['messageIds'][0]
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return result
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@base.ReleaseTracks(base.ReleaseTrack.GA)
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class Publish(base.Command):
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"""Publishes a message to the specified topic."""
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detailed_help = {
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'DESCRIPTION':
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"""\
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Publishes a message to the specified topic name for testing and
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troubleshooting. Use with caution: all associated subscribers must
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be able to consume and acknowledge any message you publish,
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otherwise the system will continuously re-attempt delivery of the
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bad message for 7 days.""",
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'EXAMPLES':
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"""\
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To publish messages in a batch to a specific Cloud Pub/Sub topic,
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run:
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$ {command} mytopic --message="Hello World!" --attribute=KEY1=VAL1,KEY2=VAL2
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"""
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}
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@classmethod
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def Args(cls, parser):
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resource_args.AddTopicResourceArg(parser, 'to publish messages to.')
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flags.AddPublishMessageFlags(parser)
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def Run(self, args):
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return _Run(args, args.message)
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@base.ReleaseTracks(base.ReleaseTrack.BETA, base.ReleaseTrack.ALPHA)
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class PublishBeta(Publish):
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"""Publishes a message to the specified topic."""
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@classmethod
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def Args(cls, parser):
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resource_args.AddTopicResourceArg(parser, 'to publish messages to.')
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flags.AddPublishMessageFlags(parser, add_deprecated=True)
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def Run(self, args):
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message_body = flags.ParseMessageBody(args)
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legacy_output = properties.VALUES.pubsub.legacy_output.GetBool()
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return _Run(args, message_body, legacy_output=legacy_output)
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