177 lines
6.8 KiB
Python
177 lines
6.8 KiB
Python
# Copyright 2015 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"). You
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# may not use this file except in compliance with the License. A copy of
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# the License is located at
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#
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# http://aws.amazon.com/apache2.0/
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#
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# or in the "license" file accompanying this file. This file is
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# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
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# ANY KIND, either express or implied. See the License for the specific
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# language governing permissions and limitations under the License.
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from botocore import xform_name
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from botocore.compat import OrderedDict
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from botocore.docs.utils import DocumentedShape
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from botocore.utils import get_service_module_name
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from botocore.docs.method import document_model_driven_method
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class PaginatorDocumenter(object):
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def __init__(self, client, service_paginator_model):
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self._client = client
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self._service_name = self._client.meta.service_model.service_name
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self._service_paginator_model = service_paginator_model
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def document_paginators(self, section):
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"""Documents the various paginators for a service
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param section: The section to write to.
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"""
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section.style.h2('Paginators')
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section.style.new_line()
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section.writeln('The available paginators are:')
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paginator_names = sorted(
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self._service_paginator_model._paginator_config)
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# List the available paginators and then document each paginator.
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for paginator_name in paginator_names:
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section.style.li(
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':py:class:`%s.Paginator.%s`' % (
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self._client.__class__.__name__, paginator_name))
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self._add_paginator(section, paginator_name)
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def _add_paginator(self, section, paginator_name):
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section = section.add_new_section(paginator_name)
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# Docment the paginator class
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section.style.start_sphinx_py_class(
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class_name='%s.Paginator.%s' % (
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self._client.__class__.__name__, paginator_name))
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section.style.start_codeblock()
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section.style.new_line()
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# Document how to instantiate the paginator.
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section.write(
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'paginator = client.get_paginator(\'%s\')' % xform_name(
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paginator_name)
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)
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section.style.end_codeblock()
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section.style.new_line()
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# Get the pagination model for the particular paginator.
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paginator_config = self._service_paginator_model.get_paginator(
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paginator_name)
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document_paginate_method(
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section=section,
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paginator_name=paginator_name,
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event_emitter=self._client.meta.events,
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service_model=self._client.meta.service_model,
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paginator_config=paginator_config
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)
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def document_paginate_method(section, paginator_name, event_emitter,
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service_model, paginator_config,
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include_signature=True):
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"""Documents the paginate method of a paginator
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:param section: The section to write to
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:param paginator_name: The name of the paginator. It is snake cased.
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:param event_emitter: The event emitter to use to emit events
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:param service_model: The service model
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:param paginator_config: The paginator config associated to a particular
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paginator.
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:param include_signature: Whether or not to include the signature.
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It is useful for generating docstrings.
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"""
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# Retrieve the operation model of the underlying operation.
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operation_model = service_model.operation_model(
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paginator_name)
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# Add representations of the request and response parameters
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# we want to include in the description of the paginate method.
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# These are parameters we expose via the botocore interface.
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pagination_config_members = OrderedDict()
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pagination_config_members['MaxItems'] = DocumentedShape(
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name='MaxItems', type_name='integer',
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documentation=(
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'<p>The total number of items to return. If the total '
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'number of items available is more than the value '
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'specified in max-items then a <code>NextToken</code> '
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'will be provided in the output that you can use to '
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'resume pagination.</p>'))
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pagination_config_members['PageSize'] = DocumentedShape(
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name='PageSize', type_name='integer',
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documentation='<p>The size of each page.<p>')
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pagination_config_members['StartingToken'] = DocumentedShape(
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name='StartingToken', type_name='string',
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documentation=(
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'<p>A token to specify where to start paginating. '
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'This is the <code>NextToken</code> from a previous '
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'response.</p>'))
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botocore_pagination_params = [
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DocumentedShape(
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name='PaginationConfig', type_name='structure',
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documentation=(
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'<p>A dictionary that provides parameters to control '
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'pagination.</p>'),
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members=pagination_config_members)
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]
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botocore_pagination_response_params = [
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DocumentedShape(
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name='NextToken', type_name='string',
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documentation=(
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'<p>A token to resume pagination.</p>'))
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]
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service_pagination_params = []
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# Add the normal input token of the method to a list
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# of input paramters that we wish to hide since we expose our own.
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if isinstance(paginator_config['input_token'], list):
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service_pagination_params += paginator_config['input_token']
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else:
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service_pagination_params.append(paginator_config['input_token'])
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# Hide the limit key in the documentation.
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if paginator_config.get('limit_key', None):
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service_pagination_params.append(paginator_config['limit_key'])
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# Hide the output tokens in the documentation.
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service_pagination_response_params = []
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if isinstance(paginator_config['output_token'], list):
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service_pagination_response_params += paginator_config[
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'output_token']
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else:
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service_pagination_response_params.append(paginator_config[
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'output_token'])
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paginate_description = (
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'Creates an iterator that will paginate through responses '
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'from :py:meth:`{0}.Client.{1}`.'.format(
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get_service_module_name(service_model), xform_name(paginator_name))
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)
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document_model_driven_method(
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section, 'paginate', operation_model,
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event_emitter=event_emitter,
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method_description=paginate_description,
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example_prefix='response_iterator = paginator.paginate',
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include_input=botocore_pagination_params,
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include_output=botocore_pagination_response_params,
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exclude_input=service_pagination_params,
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exclude_output=service_pagination_response_params,
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include_signature=include_signature
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)
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