Module: AutoParse
- Defined in:
- lib/autoparse.rb,
lib/autoparse/version.rb,
lib/autoparse/instance.rb,
lib/autoparse/inflection.rb
Defined Under Namespace
Modules: VERSION Classes: Instance
Constant Summary collapse
- EMPTY_SCHEMA =
The empty schema accepts all JSON.
Instance
- INFLECTOR =
Extlib::Inflection
Class Method Summary collapse
- .export(value, schema_class, type = nil) ⇒ Object
- .export_any(value, schema_class) ⇒ Object
- .export_array(value, schema_class) ⇒ Object
- .export_boolean(value, schema_class) ⇒ Object
- .export_integer(value, schema_class) ⇒ Object
- .export_number(value, schema_class) ⇒ Object
- .export_object(value, schema_class) ⇒ Object
- .export_string(value, schema_class) ⇒ Object
- .export_union(value, schema_class) ⇒ Object
- .generate(schema_data, options = {}) ⇒ Object
- .import(value, schema_class, type = nil) ⇒ Object
- .import_any(value, schema_class) ⇒ Object
- .import_array(value, schema_class) ⇒ Object
- .import_boolean(value, schema_class) ⇒ Object
- .import_integer(value, schema_class) ⇒ Object
- .import_number(value, schema_class) ⇒ Object
- .import_object(value, schema_class) ⇒ Object
- .import_string(value, schema_class) ⇒ Object
- .import_union(value, schema_class) ⇒ Object
-
.match_type(value, union, parent = nil) ⇒ Object
Given a value and a union of types, selects the type which is the best match for the given value.
- .schemas ⇒ Object
Class Method Details
.export(value, schema_class, type = nil) ⇒ Object
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# File 'lib/autoparse.rb', line 169 def self.export(value, schema_class, type=nil) type = schema_class.data['type'] if type == nil case type when 'string' AutoParse.export_string(value, schema_class) when 'boolean' AutoParse.export_boolean(value, schema_class) when 'integer' AutoParse.export_integer(value, schema_class) when 'number' AutoParse.export_number(value, schema_class) when 'array' AutoParse.export_array(value, schema_class) when 'object' AutoParse.export_object(value, schema_class) when 'null' nil when Array AutoParse.export_union(value, schema_class) else AutoParse.export_any(value, schema_class) end end |
.export_any(value, schema_class) ⇒ Object
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# File 'lib/autoparse.rb', line 372 def self.export_any(value, schema_class) value end |
.export_array(value, schema_class) ⇒ Object
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# File 'lib/autoparse.rb', line 317 def self.export_array(value, schema_class) if value == nil value elsif value.respond_to?(:to_ary) value = value.to_ary.dup items_data = schema_class.data['items'] items_schema = AutoParse.generate(items_data, :parent => schema_class) if items_schema.data['$ref'] # Dereference the schema if necessary. items_schema = items_schema.dereference end value.map! do |item| AutoParse.export(item, items_schema) end value else raise TypeError, "Expected Array, got #{value.class}." end end |
.export_boolean(value, schema_class) ⇒ Object
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# File 'lib/autoparse.rb', line 253 def self.export_boolean(value, schema_class) case value.to_s.downcase when 'true', 'yes', 'y', 'on', '1' true when 'false', 'no', 'n', 'off', '0' false when 'nil', 'null', 'undefined' nil else raise TypeError, "Expected boolean, got #{value.class}." end end |
.export_integer(value, schema_class) ⇒ Object
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# File 'lib/autoparse.rb', line 290 def self.export_integer(value, schema_class) if value == nil value else Integer(value) end end |
.export_number(value, schema_class) ⇒ Object
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# File 'lib/autoparse.rb', line 274 def self.export_number(value, schema_class) if value == nil value else Float(value) end end |
.export_object(value, schema_class) ⇒ Object
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# File 'lib/autoparse.rb', line 341 def self.export_object(value, schema_class) # FIXME: Every field must be exported as well. if value.nil? nil elsif value.respond_to?(:to_hash) value.to_hash elsif value.respond_to?(:to_json) ::JSON.parse(value.to_json) else raise TypeError, "Expected Hash, got #{value.class}." end end |
.export_string(value, schema_class) ⇒ Object
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# File 'lib/autoparse.rb', line 212 def self.export_string(value, schema_class) format = schema_class.data['format'] if format == 'byte' Base64.encode64(value) elsif format == 'date-time' if value.respond_to?(:to_str) value = Time.parse(value.to_str) elsif !value.respond_to?(:xmlschema) raise TypeError, "Could not obtain RFC 3339 timestamp from #{value.class}." end value.xmlschema elsif format == 'url' # This effectively does limited URI validation. Addressable::URI.parse(value).to_str elsif format =~ /^u?int(32|64)$/ value.to_s elsif value.respond_to?(:to_str) value.to_str elsif value.kind_of?(Symbol) value.to_s else raise TypeError, "Expected String or Symbol, got #{value.class}." end end |
.export_union(value, schema_class) ⇒ Object
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# File 'lib/autoparse.rb', line 361 def self.export_union(value, schema_class) export_type = match_type( value, schema_class.data['type'], schema_class ) AutoParse.export(value, schema_class, export_type) end |
.generate(schema_data, options = {}) ⇒ Object
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# File 'lib/autoparse.rb', line 24 def self.generate(schema_data, ={}) uri = [:uri] parent = [:parent] if schema_data["extends"] super_uri = uri + Addressable::URI.parse(schema_data["extends"]) super_schema = self.schemas[super_uri] if super_schema == nil raise ArgumentError, "Could not find schema to extend: #{schema_data["extends"]} " + "Parent schema must be parsed before child schema." end else super_schema = Instance end schema = Class.new(super_schema) do @uri = Addressable::URI.parse(uri) @uri.normalize! if @uri != nil @schema_data = schema_data if !self.uri && parent @uri = parent.uri end def self.additional_properties_schema # Override the superclass implementation so we're not always returning # the empty schema. if @additional_properties_schema.data['$ref'] # Dereference the schema if necessary. @additional_properties_schema = @additional_properties_schema.dereference end return @additional_properties_schema end (@schema_data['properties'] || []).each do |(k, v)| property_key, property_schema = k, v property_name = INFLECTOR.underscore(property_key).gsub("-", "_") property_super_schema = super_schema.properties[property_key] if property_super_schema # TODO: Not sure if this should be a recursive merge or not... # TODO: Might need to raise an error if a schema is extended in # a way that violates the requirement that all child instances also # validate against the parent schema. property_schema = property_super_schema.data.merge(property_schema) end # If the schema has no ID, it inherits the ID from the parent schema. property_schema_class = AutoParse.generate(property_schema, :parent => self) self.properties[property_key] = property_schema_class self.keys[property_name] = property_key define_method(property_name) do __get__(property_name) end define_method(property_name + '=') do |value| __set__(property_name, value) end end if schema_data['additionalProperties'] == true || schema_data['additionalProperties'] == nil # Schema-less unknown properties are allowed. @additional_properties_schema = EMPTY_SCHEMA elsif schema_data['additionalProperties'] # Unknown properties follow the supplied schema. ap_schema = AutoParse.generate( schema_data['additionalProperties'], :parent => self ) @additional_properties_schema = ap_schema else @additional_properties_schema = nil end define_method('method_missing') do |method, *params, &block| # We need to convert from Ruby calling style to JavaScript calling # style. If this fails, attempt to use JavaScript calling style # directly. # We can't modify the method in-place because this affects the call # to super. stripped_method = method.to_s assignment = false if stripped_method[-1..-1] == '=' assignment = true stripped_method[-1..-1] = '' end key = INFLECTOR.camelize(stripped_method) key[0..0] = key[0..0].downcase if @data[key] != nil # Data found elsif @data[stripped_method] != nil # Data found key = stripped_method else # Method not found. super(method, *params, &block) end # If additionalProperties is simply set to true, no parsing takes # place and all values are treated as 'any'. if assignment new_value = params[0] self.__set__(key, new_value) else self.__get__(key) end end if schema_data['dependencies'] for dependency_key, dependency_data in schema_data['dependencies'] self.property_dependencies[dependency_key] = dependency_data end end end # Register the new schema. self.schemas[schema.uri] = schema return schema end |
.import(value, schema_class, type = nil) ⇒ Object
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# File 'lib/autoparse.rb', line 145 def self.import(value, schema_class, type=nil) type = schema_class.data['type'] if type == nil case type when 'string' return AutoParse.import_string(value, schema_class) when 'boolean' return AutoParse.import_boolean(value, schema_class) when 'integer' return AutoParse.import_integer(value, schema_class) when 'number' return AutoParse.import_number(value, schema_class) when 'array' return AutoParse.import_array(value, schema_class) when 'object' return AutoParse.import_object(value, schema_class) when 'null' return nil when Array return AutoParse.import_union(value, schema_class) else return AutoParse.import_any(value, schema_class) end end |
.import_any(value, schema_class) ⇒ Object
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# File 'lib/autoparse.rb', line 368 def self.import_any(value, schema_class) value end |
.import_array(value, schema_class) ⇒ Object
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# File 'lib/autoparse.rb', line 298 def self.import_array(value, schema_class) value = (if value != nil && !value.respond_to?(:to_ary) raise TypeError, "Expected Array, got #{value.class}." else (value || []).to_ary.dup end) items_data = schema_class.data['items'] items_schema = AutoParse.generate(items_data, :parent => schema_class) if items_schema.data['$ref'] # Dereference the schema if necessary. items_schema = items_schema.dereference end value.map! do |item| AutoParse.import(item, items_schema) end value end |
.import_boolean(value, schema_class) ⇒ Object
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# File 'lib/autoparse.rb', line 239 def self.import_boolean(value, schema_class) case value.to_s.downcase when 'true', 'yes', 'y', 'on', '1' true when 'false', 'no', 'n', 'off', '0' false when 'nil', 'null', 'undefined' nil else raise TypeError, "Expected boolean, got #{value.class}." end end |
.import_integer(value, schema_class) ⇒ Object
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# File 'lib/autoparse.rb', line 282 def self.import_integer(value, schema_class) if value == nil value else Integer(value) end end |
.import_number(value, schema_class) ⇒ Object
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# File 'lib/autoparse.rb', line 266 def self.import_number(value, schema_class) if value == nil value else Float(value) end end |
.import_object(value, schema_class) ⇒ Object
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# File 'lib/autoparse.rb', line 337 def self.import_object(value, schema_class) value ? schema_class.new(value) : nil end |
.import_string(value, schema_class) ⇒ Object
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# File 'lib/autoparse.rb', line 193 def self.import_string(value, schema_class) if value != nil format = schema_class.data['format'] if format == 'byte' Base64.decode64(value) elsif format == 'date-time' Time.parse(value) elsif format == 'url' Addressable::URI.parse(value) elsif format =~ /^u?int(32|64)$/ value.to_i else value end else nil end end |
.import_union(value, schema_class) ⇒ Object
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# File 'lib/autoparse.rb', line 354 def self.import_union(value, schema_class) import_type = match_type( value, schema_class.data['type'], schema_class ) AutoParse.import(value, schema_class, import_type) end |
.match_type(value, union, parent = nil) ⇒ Object
Given a value and a union of types, selects the type which is the best match for the given value. More than one type may match the value, in which case, the first type in the union will be returned.
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# File 'lib/autoparse.rb', line 380 def self.match_type(value, union, parent=nil) possible_types = [union].flatten.compact # Strict pass for type in possible_types # We import as the first type in the list that validates. case type when 'string' return 'string' if value.kind_of?(String) when 'boolean' return 'boolean' if value == true or value == false when 'integer' return 'integer' if value.kind_of?(Integer) when 'number' return 'number' if value.kind_of?(Numeric) when 'array' return 'array' if value.kind_of?(Array) when 'object' return 'object' if value.kind_of?(Hash) || value.kind_of?(Instance) when 'null' return 'null' if value.nil? when Hash # Schema embedded directly. schema_class = AutoParse.generate(type, :parent => parent) if type['$ref'] schema_class = schema_class.dereference end return schema_class if schema_class.new(value).valid? end end # Lenient pass for type in possible_types # We import as the first type in the list that validates. case type when 'string' return 'string' if value.respond_to?(:to_str) || value.kind_of?(Symbol) when 'boolean' if ['true', 'yes', 'y', 'on', '1', 'false', 'no', 'n', 'off', '0'].include?(value.to_s.downcase) return 'boolean' end when 'integer' return 'integer' if value.to_i != 0 || value == "0" when 'number' return 'number' if value.to_f != 0.0 || value == "0" || value == "0.0" when 'array' return 'array' if value.respond_to?(:to_ary) when 'object' if value.respond_to?(:to_hash) || value.respond_to?(:to_json) return 'object' end when 'any' return 'any' end end return nil end |
.schemas ⇒ Object
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# File 'lib/autoparse.rb', line 20 def self.schemas @schemas ||= {} end |