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# Copyright 2015 Amazon.com, Inc. or its affiliates. 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. A copy of
# the License is located at
#
# http://aws.amazon.com/apache2.0/
#
# or in the "license" file accompanying this file. This file 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.
import os
from botocore import xform_name
from botocore.compat import OrderedDict
from botocore.docs.bcdoc.restdoc import DocumentStructure
from botocore.docs.example import ResponseExampleDocumenter
from botocore.docs.method import (
document_custom_method,
document_model_driven_method,
get_instance_public_methods,
)
from botocore.docs.params import ResponseParamsDocumenter
from botocore.docs.sharedexample import document_shared_examples
from botocore.docs.utils import DocumentedShape, get_official_service_name
def _allowlist_generate_presigned_url(method_name, service_name, **kwargs):
if method_name != 'generate_presigned_url':
return None
return service_name in ['s3']
class ClientDocumenter:
_CLIENT_METHODS_FILTERS = [
_allowlist_generate_presigned_url,
]
def __init__(self, client, root_docs_path, shared_examples=None):
self._client = client
self._client_class_name = self._client.__class__.__name__
self._root_docs_path = root_docs_path
self._shared_examples = shared_examples
if self._shared_examples is None:
self._shared_examples = {}
self._service_name = self._client.meta.service_model.service_name
def document_client(self, section):
"""Documents a client and its methods
:param section: The section to write to.
"""
self._add_title(section)
self._add_class_signature(section)
client_methods = self._get_client_methods()
self._add_client_intro(section, client_methods)
self._add_client_methods(client_methods)
def _get_client_methods(self):
client_methods = get_instance_public_methods(self._client)
return self._filter_client_methods(client_methods)
def _filter_client_methods(self, client_methods):
filtered_methods = {}
for method_name, method in client_methods.items():
include = self._filter_client_method(
method=method,
method_name=method_name,
service_name=self._service_name,
)
if include:
filtered_methods[method_name] = method
return filtered_methods
def _filter_client_method(self, **kwargs):
# Apply each filter to the method
for filter in self._CLIENT_METHODS_FILTERS:
filter_include = filter(**kwargs)
# Use the first non-None value returned by any of the filters
if filter_include is not None:
return filter_include
# Otherwise default to including it
return True
def _add_title(self, section):
section.style.h2('Client')
def _add_client_intro(self, section, client_methods):
section = section.add_new_section('intro')
# Write out the top level description for the client.
official_service_name = get_official_service_name(
self._client.meta.service_model
)
section.write(
f"A low-level client representing {official_service_name}"
)
section.style.new_line()
section.include_doc_string(
self._client.meta.service_model.documentation
)
# Write out the client example instantiation.
self._add_client_creation_example(section)
# List out all of the possible client methods.
section.style.dedent()
section.style.new_paragraph()
section.writeln('These are the available methods:')
section.style.toctree()
for method_name in sorted(client_methods):
section.style.tocitem(f'{self._service_name}/client/{method_name}')
def _add_class_signature(self, section):
section.style.start_sphinx_py_class(
class_name=f'{self._client_class_name}.Client'
)
def _add_client_creation_example(self, section):
section.style.start_codeblock()
section.style.new_line()
section.write(
'client = session.create_client(\'{service}\')'.format(
service=self._service_name
)
)
section.style.end_codeblock()
def _add_client_methods(self, client_methods):
for method_name in sorted(client_methods):
# Create a new DocumentStructure for each client method and add contents.
method_doc_structure = DocumentStructure(
method_name, target='html'
)
self._add_client_method(
method_doc_structure, method_name, client_methods[method_name]
)
# Write client methods in individual/nested files.
# Path: <root>/reference/services/<service>/client/<method_name>.rst
client_dir_path = os.path.join(
self._root_docs_path, self._service_name, 'client'
)
method_doc_structure.write_to_file(client_dir_path, method_name)
def _add_client_method(self, section, method_name, method):
breadcrumb_section = section.add_new_section('breadcrumb')
breadcrumb_section.style.ref(
self._client_class_name, f'../../{self._service_name}'
)
breadcrumb_section.write(f' / Client / {method_name}')
section.add_title_section(method_name)
method_section = section.add_new_section(
method_name,
context={'qualifier': f'{self._client_class_name}.Client.'},
)
if self._is_custom_method(method_name):
self._add_custom_method(
method_section,
method_name,
method,
)
else:
self._add_model_driven_method(method_section, method_name)
def _is_custom_method(self, method_name):
return method_name not in self._client.meta.method_to_api_mapping
def _add_custom_method(self, section, method_name, method):
document_custom_method(section, method_name, method)
def _add_method_exceptions_list(self, section, operation_model):
error_section = section.add_new_section('exceptions')
error_section.style.new_line()
error_section.style.bold('Exceptions')
error_section.style.new_line()
for error in operation_model.error_shapes:
class_name = (
f'{self._client_class_name}.Client.exceptions.{error.name}'
)
error_section.style.li(':py:class:`%s`' % class_name)
def _add_model_driven_method(self, section, method_name):
service_model = self._client.meta.service_model
operation_name = self._client.meta.method_to_api_mapping[method_name]
operation_model = service_model.operation_model(operation_name)
example_prefix = 'response = client.%s' % method_name
full_method_name = (
f"{section.context.get('qualifier', '')}{method_name}"
)
document_model_driven_method(
section,
full_method_name,
operation_model,
event_emitter=self._client.meta.events,
method_description=operation_model.documentation,
example_prefix=example_prefix,
)
# Add any modeled exceptions
if operation_model.error_shapes:
self._add_method_exceptions_list(section, operation_model)
# Add the shared examples
shared_examples = self._shared_examples.get(operation_name)
if shared_examples:
document_shared_examples(
section, operation_model, example_prefix, shared_examples
)
class ClientExceptionsDocumenter:
_USER_GUIDE_LINK = (
'https://boto3.amazonaws.com/'
'v1/documentation/api/latest/guide/error-handling.html'
)
_GENERIC_ERROR_SHAPE = DocumentedShape(
name='Error',
type_name='structure',
documentation=('Normalized access to common exception attributes.'),
members=OrderedDict(
[
(
'Code',
DocumentedShape(
name='Code',
type_name='string',
documentation=(
'An identifier specifying the exception type.'
),
),
),
(
'Message',
DocumentedShape(
name='Message',
type_name='string',
documentation=(
'A descriptive message explaining why the exception '
'occured.'
),
),
),
]
),
)
def __init__(self, client, root_docs_path):
self._client = client
self._client_class_name = self._client.__class__.__name__
self._service_name = self._client.meta.service_model.service_name
self._root_docs_path = root_docs_path
def document_exceptions(self, section):
self._add_title(section)
self._add_overview(section)
self._add_exceptions_list(section)
self._add_exception_classes()
def _add_title(self, section):
section.style.h2('Client Exceptions')
def _add_overview(self, section):
section.style.new_line()
section.write(
'Client exceptions are available on a client instance '
'via the ``exceptions`` property. For more detailed instructions '
'and examples on the exact usage of client exceptions, see the '
'error handling '
)
section.style.external_link(
title='user guide',
link=self._USER_GUIDE_LINK,
)
section.write('.')
section.style.new_line()
def _exception_class_name(self, shape):
return f'{self._client_class_name}.Client.exceptions.{shape.name}'
def _add_exceptions_list(self, section):
error_shapes = self._client.meta.service_model.error_shapes
if not error_shapes:
section.style.new_line()
section.write('This client has no modeled exception classes.')
section.style.new_line()
return
section.style.new_line()
section.writeln('The available client exceptions are:')
section.style.toctree()
for shape in error_shapes:
section.style.tocitem(
f'{self._service_name}/client/exceptions/{shape.name}'
)
def _add_exception_classes(self):
for shape in self._client.meta.service_model.error_shapes:
# Create a new DocumentStructure for each exception method and add contents.
exception_doc_structure = DocumentStructure(
shape.name, target='html'
)
self._add_exception_class(exception_doc_structure, shape)
# Write exceptions in individual/nested files.
# Path: <root>/reference/services/<service>/client/exceptions/<exception_name>.rst
exception_dir_path = os.path.join(
self._root_docs_path,
self._service_name,
'client',
'exceptions',
)
exception_doc_structure.write_to_file(
exception_dir_path, shape.name
)
def _add_exception_class(self, section, shape):
breadcrumb_section = section.add_new_section('breadcrumb')
breadcrumb_section.style.ref(
self._client_class_name, f'../../../{self._service_name}'
)
breadcrumb_section.write(f' / Client / exceptions / {shape.name}')
section.add_title_section(shape.name)
class_section = section.add_new_section(shape.name)
class_name = self._exception_class_name(shape)
class_section.style.start_sphinx_py_class(class_name=class_name)
self._add_top_level_documentation(class_section, shape)
self._add_exception_catch_example(class_section, shape)
self._add_response_attr(class_section, shape)
class_section.style.end_sphinx_py_class()
def _add_top_level_documentation(self, section, shape):
if shape.documentation:
section.style.new_line()
section.include_doc_string(shape.documentation)
section.style.new_line()
def _add_exception_catch_example(self, section, shape):
section.style.new_line()
section.style.bold('Example')
section.style.new_paragraph()
section.style.start_codeblock()
section.write('try:')
section.style.indent()
section.style.new_line()
section.write('...')
section.style.dedent()
section.style.new_line()
section.write('except client.exceptions.%s as e:' % shape.name)
section.style.indent()
section.style.new_line()
section.write('print(e.response)')
section.style.dedent()
section.style.end_codeblock()
def _add_response_attr(self, section, shape):
response_section = section.add_new_section('response')
response_section.style.start_sphinx_py_attr('response')
self._add_response_attr_description(response_section)
self._add_response_example(response_section, shape)
self._add_response_params(response_section, shape)
response_section.style.end_sphinx_py_attr()
def _add_response_attr_description(self, section):
section.style.new_line()
section.include_doc_string(
'The parsed error response. All exceptions have a top level '
'``Error`` key that provides normalized access to common '
'exception atrributes. All other keys are specific to this '
'service or exception class.'
)
section.style.new_line()
def _add_response_example(self, section, shape):
example_section = section.add_new_section('syntax')
example_section.style.new_line()
example_section.style.bold('Syntax')
example_section.style.new_paragraph()
documenter = ResponseExampleDocumenter(
service_name=self._service_name,
operation_name=None,
event_emitter=self._client.meta.events,
)
documenter.document_example(
example_section,
shape,
include=[self._GENERIC_ERROR_SHAPE],
)
def _add_response_params(self, section, shape):
params_section = section.add_new_section('Structure')
params_section.style.new_line()
params_section.style.bold('Structure')
params_section.style.new_paragraph()
documenter = ResponseParamsDocumenter(
service_name=self._service_name,
operation_name=None,
event_emitter=self._client.meta.events,
)
documenter.document_params(
params_section,
shape,
include=[self._GENERIC_ERROR_SHAPE],
)
class ClientContextParamsDocumenter:
_CONFIG_GUIDE_LINK = (
'https://boto3.amazonaws.com/'
'v1/documentation/api/latest/guide/configuration.html'
)
OMITTED_CONTEXT_PARAMS = {
's3': (
'Accelerate',
'DisableMultiRegionAccessPoints',
'ForcePathStyle',
'UseArnRegion',
),
's3control': ('UseArnRegion',),
}
def __init__(self, service_name, context_params):
self._service_name = service_name
self._context_params = context_params
def document_context_params(self, section):
self._add_title(section)
self._add_overview(section)
self._add_context_params_list(section)
def _add_title(self, section):
section.style.h2('Client Context Parameters')
def _add_overview(self, section):
section.style.new_line()
section.write(
'Client context parameters are configurable on a client '
'instance via the ``client_context_params`` parameter in the '
'``Config`` object. For more detailed instructions and examples '
'on the exact usage of context params see the '
)
section.style.external_link(
title='configuration guide',
link=self._CONFIG_GUIDE_LINK,
)
section.write('.')
section.style.new_line()
def _add_context_params_list(self, section):
section.style.new_line()
sn = f'``{self._service_name}``'
section.writeln(f'The available {sn} client context params are:')
for param in self._context_params:
section.style.new_line()
name = f'``{xform_name(param.name)}``'
section.write(f'* {name} ({param.type}) - {param.documentation}')