* Consistently use spaces in rest-api-templates/asterisk_processor.py. * Exclude third-party from docs/full-en_US.xml. * Add docs/full-en_US.xml to .gitignore. * Use list() to convert python3 view. * Use python3 print function. * Replace cmp() with equivalent equation. * Replace reference to out of scope subtype variable with name parameter. * Use unescaping triple bracket notation in mustache templates where needed. This causes behavior of Python2 to be maintained when using Python3. * Fix references to has_websocket / is_websocket in res_ari_resource.c.mustache. * Update calculation of has_websocket to use any(). * Use unicode mode for writing output file in transform.py. * Replace 'from swagger_model import *' with explicit import of required symbols. I have not tested spandspflow2pcap.py or voicemailpwcheck.py, only the print syntax has been fixed. Change-Id: If5c5b556a2800d41a3e2cfef080ac2e151178c33
253 lines
8.8 KiB
Python
253 lines
8.8 KiB
Python
#
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# Asterisk -- An open source telephony toolkit.
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#
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# Copyright (C) 2013, Digium, Inc.
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#
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# David M. Lee, II <dlee@digium.com>
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#
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# See http://www.asterisk.org for more information about
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# the Asterisk project. Please do not directly contact
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# any of the maintainers of this project for assistance;
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# the project provides a web site, mailing lists and IRC
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# channels for your use.
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#
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# This program is free software, distributed under the terms of
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# the GNU General Public License Version 2. See the LICENSE file
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# at the top of the source tree.
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#
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"""Implementation of SwaggerPostProcessor which adds fields needed to generate
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Asterisk RESTful HTTP binding code.
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"""
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import os
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import re
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from swagger_model import Stringify, SwaggerError, SwaggerPostProcessor
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try:
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from collections import OrderedDict
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except ImportError:
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from odict import OrderedDict
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def simple_name(name):
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"""Removes the {markers} from a path segement.
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@param name: Swagger path segement, with {pathVar} markers.
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"""
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if name.startswith('{') and name.endswith('}'):
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return name[1:-1]
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return name
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def wikify(str):
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"""Escapes a string for the wiki.
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@param str: String to escape
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"""
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return re.sub(r'([{}\[\]])', r'\\\1', str)
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def snakify(name):
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"""Helper to take a camelCase or dash-seperated name and make it
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snake_case.
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"""
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r = ''
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prior_lower = False
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for c in name:
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if c.isupper() and prior_lower:
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r += "_"
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if c is '-':
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c = '_'
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prior_lower = c.islower()
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r += c.lower()
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return r
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class PathSegment(Stringify):
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"""Tree representation of a Swagger API declaration.
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"""
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def __init__(self, name, parent):
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"""Ctor.
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@param name: Name of this path segment. May have {pathVar} markers.
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@param parent: Parent PathSegment.
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"""
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#: Segment name, with {pathVar} markers removed
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self.name = simple_name(name)
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#: True if segment is a {pathVar}, else None.
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self.is_wildcard = None
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#: Underscore seperated name all ancestor segments
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self.full_name = None
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#: Dictionary of child PathSegements
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self.__children = OrderedDict()
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#: List of operations on this segement
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self.operations = []
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if self.name != name:
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self.is_wildcard = True
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if not self.name:
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assert(not parent)
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self.full_name = ''
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if not parent or not parent.name:
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self.full_name = name
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else:
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self.full_name = "%s_%s" % (parent.full_name, self.name)
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def get_child(self, path):
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"""Walks decendents to get path, creating it if necessary.
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@param path: List of path names.
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@return: PageSegment corresponding to path.
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"""
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assert simple_name(path[0]) == self.name
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if (len(path) == 1):
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return self
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child = self.__children.get(path[1])
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if not child:
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child = PathSegment(path[1], self)
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self.__children[path[1]] = child
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return child.get_child(path[1:])
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def children(self):
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"""Gets list of children.
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"""
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return self.__children.values()
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def num_children(self):
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"""Gets count of children.
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"""
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return len(self.__children)
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class AsteriskProcessor(SwaggerPostProcessor):
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"""A SwaggerPostProcessor which adds fields needed to generate Asterisk
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RESTful HTTP binding code.
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"""
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#: How Swagger types map to C.
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type_mapping = {
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'string': 'const char *',
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'boolean': 'int',
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'number': 'int',
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'int': 'int',
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'long': 'long',
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'double': 'double',
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'float': 'float',
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}
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#: String conversion functions for string to C type.
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convert_mapping = {
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'string': '',
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'int': 'atoi',
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'long': 'atol',
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'double': 'atof',
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'boolean': 'ast_true',
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}
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#: JSON conversion functions
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json_convert_mapping = {
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'string': 'ast_json_string_get',
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'int': 'ast_json_integer_get',
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'long': 'ast_json_integer_get',
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'double': 'ast_json_real_get',
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'boolean': 'ast_json_is_true',
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}
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def __init__(self, wiki_prefix):
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self.wiki_prefix = wiki_prefix
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def process_resource_api(self, resource_api, context):
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resource_api.wiki_prefix = self.wiki_prefix
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# Derive a resource name from the API declaration's filename
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resource_api.name = re.sub('\..*', '',
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os.path.basename(resource_api.path))
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# Now in all caps, for include guard
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resource_api.name_caps = resource_api.name.upper()
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resource_api.name_title = resource_api.name.capitalize()
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resource_api.c_name = snakify(resource_api.name)
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# Construct the PathSegement tree for the API.
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if resource_api.api_declaration:
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resource_api.root_path = PathSegment('', None)
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for api in resource_api.api_declaration.apis:
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segment = resource_api.root_path.get_child(api.path.split('/'))
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for operation in api.operations:
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segment.operations.append(operation)
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api.full_name = segment.full_name
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# Since every API path should start with /[resource], root should
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# have exactly one child.
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if resource_api.root_path.num_children() != 1:
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raise SwaggerError(
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"Should not mix resources in one API declaration", context)
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# root_path isn't needed any more
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resource_api.root_path = list(resource_api.root_path.children())[0]
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if resource_api.name != resource_api.root_path.name:
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raise SwaggerError(
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"API declaration name should match", context)
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resource_api.root_full_name = resource_api.root_path.full_name
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def process_api(self, api, context):
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api.wiki_path = wikify(api.path)
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def process_operation(self, operation, context):
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# Nicknames are camelCase, Asterisk coding is snake case
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operation.c_nickname = snakify(operation.nickname)
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operation.c_http_method = 'AST_HTTP_' + operation.http_method
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if not operation.summary.endswith("."):
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raise SwaggerError("Summary should end with .", context)
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operation.wiki_summary = wikify(operation.summary or "")
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operation.wiki_notes = wikify(operation.notes or "")
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for error_response in operation.error_responses:
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error_response.wiki_reason = wikify(error_response.reason or "")
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operation.parse_body = (operation.body_parameter or operation.has_query_parameters) and True
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def process_parameter(self, parameter, context):
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if parameter.param_type == 'body':
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parameter.is_body_parameter = True;
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parameter.c_data_type = 'struct ast_json *'
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else:
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parameter.is_body_parameter = False;
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if not parameter.data_type in self.type_mapping:
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raise SwaggerError(
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"Invalid parameter type %s" % parameter.data_type, context)
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# Type conversions
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parameter.c_data_type = self.type_mapping[parameter.data_type]
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parameter.c_convert = self.convert_mapping[parameter.data_type]
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parameter.json_convert = self.json_convert_mapping[parameter.data_type]
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# Parameter names are camelcase, Asterisk convention is snake case
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parameter.c_name = snakify(parameter.name)
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# You shouldn't put a space between 'char *' and the variable
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if parameter.c_data_type.endswith('*'):
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parameter.c_space = ''
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else:
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parameter.c_space = ' '
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parameter.wiki_description = wikify(parameter.description)
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if parameter.allowable_values:
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parameter.wiki_allowable_values = parameter.allowable_values.to_wiki()
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else:
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parameter.wiki_allowable_values = None
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def process_model(self, model, context):
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model.description_dox = model.description.replace('\n', '\n * ')
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model.description_dox = re.sub(' *\n', '\n', model.description_dox)
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model.wiki_description = wikify(model.description)
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model.c_id = snakify(model.id)
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return model
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def process_property(self, prop, context):
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if "-" in prop.name:
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raise SwaggerError("Property names cannot have dashes", context)
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if prop.name != prop.name.lower():
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raise SwaggerError("Property name should be all lowercase",
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context)
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prop.wiki_description = wikify(prop.description)
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def process_type(self, swagger_type, context):
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swagger_type.c_name = snakify(swagger_type.name)
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swagger_type.c_singular_name = snakify(swagger_type.singular_name)
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swagger_type.wiki_name = wikify(swagger_type.name)
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