Merge pull request #183 from p1c2u/refactor/move-unmarshallers-to-subpackage

Move Unmarshallers to separate subpackage

openapi_core/exceptions.py

@@ -0,0 +1,5 @@
+"""OpenAPI core exceptions module"""
+
+
+class OpenAPIError(Exception):
+    pass

openapi_core/schema/exceptions.py

@@ -1,8 +1,5 @@
 """OpenAPI core schema exceptions module"""
-
+from openapi_core.exceptions import OpenAPIError
-
-class OpenAPIError(Exception):
-    pass
 
 
 class OpenAPIMappingError(OpenAPIError):

openapi_core/schema/extensions/generators.py

@@ -0,0 +1,16 @@
+"""OpenAPI core extensions generators module"""
+from six import iteritems
+
+from openapi_core.schema.extensions.models import Extension
+
+
+class ExtensionsGenerator(object):
+
+    def __init__(self, dereferencer):
+        self.dereferencer = dereferencer
+
+    def generate(self, item_spec):
+        for field_name, value in iteritems(item_spec):
+            if not field_name.startswith('x-'):
+                continue
+            yield field_name, Extension(field_name, value)

openapi_core/schema/extensions/models.py

@@ -0,0 +1,9 @@
+"""OpenAPI core extensions models module"""
+
+
+class Extension(object):
+    """Represents an OpenAPI Extension."""
+
+    def __init__(self, field_name, value=None):
+        self.field_name = field_name
+        self.value = value

openapi_core/schema/media_types/models.py

@@ -5,8 +5,9 @@ from json import loads
 
 from openapi_core.schema.media_types.exceptions import InvalidMediaTypeValue
 from openapi_core.schema.schemas.exceptions import (
-    CastError, ValidateError, UnmarshalError,
+    CastError, ValidateError,
 )
+from openapi_core.unmarshalling.schemas.exceptions import UnmarshalError
 
 
 MEDIA_TYPE_DESERIALIZERS = {

openapi_core/schema/parameters/models.py

@@ -11,8 +11,9 @@ from openapi_core.schema.parameters.exceptions import (
 )
 from openapi_core.schema.schemas.enums import SchemaType
 from openapi_core.schema.schemas.exceptions import (
-    CastError, ValidateError, UnmarshalError,
+    CastError, ValidateError,
 )
+from openapi_core.unmarshalling.schemas.exceptions import UnmarshalError
 
 log = logging.getLogger(__name__)
 
@@ -81,11 +82,8 @@ class Parameter(object):
             if self.required:
                 raise MissingRequiredParameter(self.name)
 
-            if not self.schema or self.schema.default is None:
             raise MissingParameter(self.name)
 
-            return self.schema.default
-
         if self.aslist and self.explode:
             if hasattr(location, 'getall'):
                 return location.getall(self.name)

openapi_core/schema/schemas/exceptions.py

@@ -23,27 +23,6 @@ class ValidateError(OpenAPISchemaError):
     pass
 
 
-class UnmarshalError(OpenAPISchemaError):
-    """Schema unmarshal operation error"""
-    pass
-
-
-@attr.s(hash=True)
-class UnmarshalValueError(UnmarshalError):
-    """Failed to unmarshal value to type"""
-    value = attr.ib()
-    type = attr.ib()
-    original_exception = attr.ib(default=None)
-
-    def __str__(self):
-        return (
-            "Failed to unmarshal value {value} to type {type}: {exception}"
-        ).format(
-            value=self.value, type=self.type,
-            exception=self.original_exception,
-        )
-
-
 @attr.s(hash=True)
 class InvalidSchemaValue(ValidateError):
     value = attr.ib()
@@ -61,48 +40,3 @@ class InvalidSchemaValue(ValidateError):
         return (
             "Value {value} not valid for schema of type {type}: {errors}"
         ).format(value=self.value, type=self.type, errors=self.schema_errors)
-
-
-class UnmarshallerError(UnmarshalError):
-    """Unmarshaller error"""
-    pass
-
-
-@attr.s(hash=True)
-class InvalidCustomFormatSchemaValue(UnmarshallerError):
-    """Value failed to format with custom formatter"""
-    value = attr.ib()
-    type = attr.ib()
-    original_exception = attr.ib()
-
-    def __str__(self):
-        return (
-            "Failed to format value {value} to format {type}: {exception}"
-        ).format(
-            value=self.value, type=self.type,
-            exception=self.original_exception,
-        )
-
-
-@attr.s(hash=True)
-class FormatterNotFoundError(UnmarshallerError):
-    """Formatter not found to unmarshal"""
-    value = attr.ib()
-    type_format = attr.ib()
-
-    def __str__(self):
-        return (
-            "Formatter not found for {format} format "
-            "to unmarshal value {value}"
-        ).format(format=self.type_format, value=self.value)
-
-
-@attr.s(hash=True)
-class UnmarshallerStrictTypeError(UnmarshallerError):
-    value = attr.ib()
-    types = attr.ib()
-
-    def __str__(self):
-        types = ', '.join(list(map(str, self.types)))
-        return "Value {value} is not one of types: {types}".format(
-            value=self.value, types=types)

openapi_core/schema/schemas/factories.py

@@ -4,9 +4,10 @@ import logging
 from six import iteritems
 
 from openapi_core.compat import lru_cache
+from openapi_core.schema.extensions.generators import ExtensionsGenerator
 from openapi_core.schema.properties.generators import PropertiesGenerator
 from openapi_core.schema.schemas.models import Schema
-from openapi_core.schema.schemas.types import Contribution
+from openapi_core.schema.schemas.types import Contribution, NoValue
 
 log = logging.getLogger(__name__)
 
@@ -21,9 +22,8 @@ class SchemaFactory(object):
 
         schema_type = schema_deref.get('type', None)
         schema_format = schema_deref.get('format')
-        model = schema_deref.get('x-model', None)
         required = schema_deref.get('required', False)
-        default = schema_deref.get('default', None)
+        default = schema_deref.get('default', NoValue)
         properties_spec = schema_deref.get('properties', None)
         items_spec = schema_deref.get('items', None)
         nullable = schema_deref.get('nullable', False)
@@ -47,6 +47,8 @@ class SchemaFactory(object):
         min_properties = schema_deref.get('minProperties', None)
         max_properties = schema_deref.get('maxProperties', None)
 
+        extensions = self.extensions_generator.generate(schema_deref)
+
         properties = None
         if properties_spec:
             properties = self.properties_generator.generate(properties_spec)
@@ -68,7 +70,7 @@ class SchemaFactory(object):
             additional_properties = self.create(additional_properties_spec)
 
         return Schema(
-            schema_type=schema_type, model=model, properties=properties,
+            schema_type=schema_type, properties=properties,
             items=items, schema_format=schema_format, required=required,
             default=default, nullable=nullable, enum=enum,
             deprecated=deprecated, all_of=all_of, one_of=one_of,
@@ -79,9 +81,15 @@ class SchemaFactory(object):
             exclusive_maximum=exclusive_maximum,
             exclusive_minimum=exclusive_minimum,
             min_properties=min_properties, max_properties=max_properties,
+            extensions=extensions,
             _source=schema_deref,
         )
 
+    @property
+    @lru_cache()
+    def extensions_generator(self):
+        return ExtensionsGenerator(self.dereferencer)
+
     @property
     @lru_cache()
     def properties_generator(self):

openapi_core/schema/schemas/models.py

@@ -1,23 +1,22 @@
 """OpenAPI core schemas models module"""
 import attr
-import functools
 import logging
 from collections import defaultdict
 import re
-import warnings
 
-from six import iteritems
 from jsonschema.exceptions import ValidationError
 
-from openapi_core.extensions.models.factories import ModelFactory
 from openapi_core.schema.schemas._format import oas30_format_checker
 from openapi_core.schema.schemas.enums import SchemaType
 from openapi_core.schema.schemas.exceptions import (
     CastError, InvalidSchemaValue,
-    UnmarshalValueError, UnmarshalError,
 )
+from openapi_core.schema.schemas.types import NoValue
 from openapi_core.schema.schemas.util import forcebool
 from openapi_core.schema.schemas.validators import OAS30Validator
+from openapi_core.unmarshalling.schemas.exceptions import (
+    UnmarshalValueError,
+)
 
 log = logging.getLogger(__name__)
 
@@ -37,20 +36,17 @@ class Schema(object):
         SchemaType.BOOLEAN: forcebool,
     }
 
-    DEFAULT_UNMARSHAL_CALLABLE_GETTER = {
-    }
-
     def __init__(
-            self, schema_type=None, model=None, properties=None, items=None,
+            self, schema_type=None, properties=None, items=None,
-            schema_format=None, required=None, default=None, nullable=False,
+            schema_format=None, required=None, default=NoValue, nullable=False,
             enum=None, deprecated=False, all_of=None, one_of=None,
             additional_properties=True, min_items=None, max_items=None,
             min_length=None, max_length=None, pattern=None, unique_items=False,
             minimum=None, maximum=None, multiple_of=None,
             exclusive_minimum=False, exclusive_maximum=False,
-            min_properties=None, max_properties=None, _source=None):
+            min_properties=None, max_properties=None, extensions=None,
+            _source=None):
         self.type = SchemaType(schema_type)
-        self.model = model
         self.properties = properties and dict(properties) or {}
         self.items = items
         self.format = schema_format
@@ -79,6 +75,8 @@ class Schema(object):
         self.max_properties = int(max_properties)\
             if max_properties is not None else None
 
+        self.extensions = extensions and dict(extensions) or {}
+
         self._all_required_properties_cache = None
         self._all_optional_properties_cache = None
 
@@ -95,6 +93,9 @@ class Schema(object):
     def __getitem__(self, name):
         return self.properties[name]
 
+    def has_default(self):
+        return self.default is not NoValue
+
     def get_all_properties(self):
         properties = self.properties.copy()
 
@@ -108,32 +109,6 @@ class Schema(object):
         all_properties = self.get_all_properties()
         return set(all_properties.keys())
 
-    def get_all_required_properties(self):
-        if self._all_required_properties_cache is None:
-            self._all_required_properties_cache =\
-                self._get_all_required_properties()
-
-        return self._all_required_properties_cache
-
-    def _get_all_required_properties(self):
-        all_properties = self.get_all_properties()
-        required = self.get_all_required_properties_names()
-
-        return dict(
-            (prop_name, val)
-            for prop_name, val in iteritems(all_properties)
-            if prop_name in required
-        )
-
-    def get_all_required_properties_names(self):
-        required = self.required[:]
-
-        for subschema in self.all_of:
-            subschema_req = subschema.get_all_required_properties()
-            required += subschema_req
-
-        return set(required)
-
     def get_cast_mapping(self):
         mapping = self.TYPE_CAST_CALLABLE_GETTER.copy()
         mapping.update({
@@ -144,7 +119,7 @@ class Schema(object):
 
     def cast(self, value):
         """Cast value from string to schema type"""
-        if value is None:
+        if value in (None, NoValue):
             return value
 
         cast_mapping = self.get_cast_mapping()
@@ -158,28 +133,6 @@ class Schema(object):
     def _cast_collection(self, value):
         return list(map(self.items.cast, value))
 
-    def get_unmarshal_mapping(self, custom_formatters=None, strict=True):
-        primitive_unmarshallers = self.get_primitive_unmarshallers(
-            custom_formatters=custom_formatters)
-
-        primitive_unmarshallers_partial = dict(
-            (t, functools.partial(u, type_format=self.format, strict=strict))
-            for t, u in primitive_unmarshallers.items()
-        )
-
-        def pass_defaults(f):
-            return functools.partial(
-                f, custom_formatters=custom_formatters, strict=strict)
-        mapping = self.DEFAULT_UNMARSHAL_CALLABLE_GETTER.copy()
-        mapping.update(primitive_unmarshallers_partial)
-        mapping.update({
-            SchemaType.ANY: pass_defaults(self._unmarshal_any),
-            SchemaType.ARRAY: pass_defaults(self._unmarshal_collection),
-            SchemaType.OBJECT: pass_defaults(self._unmarshal_object),
-        })
-
-        return defaultdict(lambda: lambda x: x, mapping)
-
     def get_validator(self, resolver=None):
         return OAS30Validator(
             self.__dict__,
@@ -197,162 +150,13 @@ class Schema(object):
 
     def unmarshal(self, value, custom_formatters=None, strict=True):
         """Unmarshal parameter from the value."""
-        if self.deprecated:
+        from openapi_core.unmarshalling.schemas.factories import (
-            warnings.warn("The schema is deprecated", DeprecationWarning)
+            SchemaUnmarshallersFactory,
-        if value is None:
+        )
-            if not self.nullable:
+        unmarshallers_factory = SchemaUnmarshallersFactory(
-                raise UnmarshalError(
+            custom_formatters)
-                    "Null value for non-nullable schema", value, self.type)
+        unmarshaller = unmarshallers_factory.create(self)
-            return self.default
-
-        if self.enum and value not in self.enum:
-            raise UnmarshalError("Invalid value for enum: {0}".format(value))
-
-        unmarshal_mapping = self.get_unmarshal_mapping(
-            custom_formatters=custom_formatters, strict=strict)
-
-        if self.type is not SchemaType.STRING and value == '':
-            return None
-
-        unmarshal_callable = unmarshal_mapping[self.type]
         try:
-            unmarshalled = unmarshal_callable(value)
+            return unmarshaller(value, strict=strict)
         except ValueError as exc:
             raise UnmarshalValueError(value, self.type, exc)
-
-        return unmarshalled
-
-    def get_primitive_unmarshallers(self, **options):
-        from openapi_core.schema.schemas.unmarshallers import (
-            StringUnmarshaller, BooleanUnmarshaller, IntegerUnmarshaller,
-            NumberUnmarshaller,
-        )
-
-        unmarshallers_classes = {
-            SchemaType.STRING: StringUnmarshaller,
-            SchemaType.BOOLEAN: BooleanUnmarshaller,
-            SchemaType.INTEGER: IntegerUnmarshaller,
-            SchemaType.NUMBER: NumberUnmarshaller,
-        }
-
-        unmarshallers = dict(
-            (t, klass(**options))
-            for t, klass in unmarshallers_classes.items()
-        )
-
-        return unmarshallers
-
-    def _unmarshal_any(self, value, custom_formatters=None, strict=True):
-        types_resolve_order = [
-            SchemaType.OBJECT, SchemaType.ARRAY, SchemaType.BOOLEAN,
-            SchemaType.INTEGER, SchemaType.NUMBER, SchemaType.STRING,
-        ]
-        unmarshal_mapping = self.get_unmarshal_mapping()
-        if self.one_of:
-            result = None
-            for subschema in self.one_of:
-                try:
-                    unmarshalled = subschema.unmarshal(
-                        value, custom_formatters)
-                except UnmarshalError:
-                    continue
-                else:
-                    if result is not None:
-                        log.warning("multiple valid oneOf schemas found")
-                        continue
-                    result = unmarshalled
-
-            if result is None:
-                log.warning("valid oneOf schema not found")
-
-            return result
-        else:
-            for schema_type in types_resolve_order:
-                unmarshal_callable = unmarshal_mapping[schema_type]
-                try:
-                    return unmarshal_callable(value)
-                except (UnmarshalError, ValueError):
-                    continue
-
-        log.warning("failed to unmarshal any type")
-        return value
-
-    def _unmarshal_collection(
-            self, value, custom_formatters=None, strict=True):
-        if not isinstance(value, (list, tuple)):
-            raise ValueError(
-                "Invalid value for collection: {0}".format(value))
-
-        f = functools.partial(
-            self.items.unmarshal,
-            custom_formatters=custom_formatters, strict=strict,
-        )
-        return list(map(f, value))
-
-    def _unmarshal_object(self, value, model_factory=None,
-                          custom_formatters=None, strict=True):
-        if not isinstance(value, (dict, )):
-            raise ValueError("Invalid value for object: {0}".format(value))
-
-        model_factory = model_factory or ModelFactory()
-
-        if self.one_of:
-            properties = None
-            for one_of_schema in self.one_of:
-                try:
-                    unmarshalled = self._unmarshal_properties(
-                        value, one_of_schema,
-                        custom_formatters=custom_formatters,
-                    )
-                except (UnmarshalError, ValueError):
-                    pass
-                else:
-                    if properties is not None:
-                        log.warning("multiple valid oneOf schemas found")
-                        continue
-                    properties = unmarshalled
-
-            if properties is None:
-                log.warning("valid oneOf schema not found")
-
-        else:
-            properties = self._unmarshal_properties(
-              value, custom_formatters=custom_formatters)
-
-        return model_factory.create(properties, name=self.model)
-
-    def _unmarshal_properties(self, value, one_of_schema=None,
-                              custom_formatters=None, strict=True):
-        all_props = self.get_all_properties()
-        all_props_names = self.get_all_properties_names()
-        all_req_props_names = self.get_all_required_properties_names()
-
-        if one_of_schema is not None:
-            all_props.update(one_of_schema.get_all_properties())
-            all_props_names |= one_of_schema.\
-                get_all_properties_names()
-            all_req_props_names |= one_of_schema.\
-                get_all_required_properties_names()
-
-        value_props_names = value.keys()
-        extra_props = set(value_props_names) - set(all_props_names)
-
-        properties = {}
-        if self.additional_properties is not True:
-            for prop_name in extra_props:
-                prop_value = value[prop_name]
-                properties[prop_name] = self.additional_properties.unmarshal(
-                    prop_value, custom_formatters=custom_formatters)
-
-        for prop_name, prop in iteritems(all_props):
-            try:
-                prop_value = value[prop_name]
-            except KeyError:
-                if not prop.nullable and not prop.default:
-                    continue
-                prop_value = prop.default
-
-            properties[prop_name] = prop.unmarshal(
-                prop_value, custom_formatters=custom_formatters)
-
-        return properties

openapi_core/schema/schemas/types.py

@@ -1,6 +1,9 @@
 import attr
 
 
+NoValue = object()
+
+
 @attr.s(hash=True)
 class Contribution(object):
     src_prop_name = attr.ib()

openapi_core/schema/schemas/unmarshallers.py

@@ -1,101 +0,0 @@
-from six import text_type, binary_type, integer_types
-
-from openapi_core.schema.schemas.enums import SchemaFormat
-from openapi_core.schema.schemas.exceptions import (
-    InvalidCustomFormatSchemaValue,
-    UnmarshallerStrictTypeError,
-    FormatterNotFoundError,
-)
-from openapi_core.schema.schemas.util import (
-    forcebool, format_date, format_datetime, format_byte, format_uuid,
-    format_number,
-)
-
-
-class StrictUnmarshaller(object):
-
-    STRICT_TYPES = ()
-
-    def __call__(self, value, type_format=SchemaFormat.NONE, strict=True):
-        if self.STRICT_TYPES and strict and not isinstance(
-                value, self.STRICT_TYPES):
-            raise UnmarshallerStrictTypeError(value, self.STRICT_TYPES)
-
-        return value
-
-
-class PrimitiveTypeUnmarshaller(StrictUnmarshaller):
-
-    FORMATTERS = {
-        SchemaFormat.NONE: lambda x: x,
-    }
-
-    def __init__(self, custom_formatters=None):
-        if custom_formatters is None:
-            custom_formatters = {}
-        self.custom_formatters = custom_formatters
-
-    def __call__(self, value, type_format=SchemaFormat.NONE, strict=True):
-        value = super(PrimitiveTypeUnmarshaller, self).__call__(
-            value, type_format=type_format, strict=strict)
-
-        try:
-            schema_format = SchemaFormat(type_format)
-        except ValueError:
-            formatter = self.custom_formatters.get(type_format)
-        else:
-            formatters = self.get_formatters()
-            formatter = formatters.get(schema_format)
-
-        if formatter is None:
-            raise FormatterNotFoundError(value, type_format)
-
-        try:
-            return formatter(value)
-        except ValueError as exc:
-            raise InvalidCustomFormatSchemaValue(value, type_format, exc)
-
-    def get_formatters(self):
-        return self.FORMATTERS
-
-
-class StringUnmarshaller(PrimitiveTypeUnmarshaller):
-
-    STRICT_TYPES = (text_type, binary_type)
-    FORMATTERS = {
-        SchemaFormat.NONE: text_type,
-        SchemaFormat.PASSWORD: text_type,
-        SchemaFormat.DATE: format_date,
-        SchemaFormat.DATETIME: format_datetime,
-        SchemaFormat.BINARY: binary_type,
-        SchemaFormat.UUID: format_uuid,
-        SchemaFormat.BYTE: format_byte,
-    }
-
-
-class IntegerUnmarshaller(PrimitiveTypeUnmarshaller):
-
-    STRICT_TYPES = integer_types
-    FORMATTERS = {
-        SchemaFormat.NONE: int,
-        SchemaFormat.INT32: int,
-        SchemaFormat.INT64: int,
-    }
-
-
-class NumberUnmarshaller(PrimitiveTypeUnmarshaller):
-
-    STRICT_TYPES = (float, ) + integer_types
-    FORMATTERS = {
-        SchemaFormat.NONE: format_number,
-        SchemaFormat.FLOAT: float,
-        SchemaFormat.DOUBLE: float,
-    }
-
-
-class BooleanUnmarshaller(PrimitiveTypeUnmarshaller):
-
-    STRICT_TYPES = (bool, )
-    FORMATTERS = {
-        SchemaFormat.NONE: forcebool,
-    }

openapi_core/schema/schemas/util.py

@@ -1,11 +1,7 @@
 """OpenAPI core schemas util module"""
-from base64 import b64decode
-import datetime
 from distutils.util import strtobool
+from six import string_types
 from json import dumps
-from six import string_types, text_type, integer_types
-import strict_rfc3339
-from uuid import UUID
 
 
 def forcebool(val):
@@ -17,29 +13,3 @@ def forcebool(val):
 
 def dicthash(d):
     return hash(dumps(d, sort_keys=True))
-
-
-def format_date(value):
-    return datetime.datetime.strptime(value, '%Y-%m-%d').date()
-
-
-def format_datetime(value):
-    timestamp = strict_rfc3339.rfc3339_to_timestamp(value)
-    return datetime.datetime.utcfromtimestamp(timestamp)
-
-
-def format_uuid(value):
-    if isinstance(value, UUID):
-        return value
-    return UUID(value)
-
-
-def format_byte(value, encoding='utf8'):
-    return text_type(b64decode(value), encoding)
-
-
-def format_number(value):
-    if isinstance(value, integer_types + (float, )):
-        return value
-
-    return float(value)

openapi_core/unmarshalling/schemas/exceptions.py

@@ -0,0 +1,66 @@
+import attr
+
+from openapi_core.exceptions import OpenAPIError
+
+
+class UnmarshalError(OpenAPIError):
+    """Schema unmarshal operation error"""
+    pass
+
+
+class UnmarshallerError(UnmarshalError):
+    """Unmarshaller error"""
+    pass
+
+
+@attr.s(hash=True)
+class UnmarshalValueError(UnmarshalError):
+    """Failed to unmarshal value to type"""
+    value = attr.ib()
+    type = attr.ib()
+    original_exception = attr.ib(default=None)
+
+    def __str__(self):
+        return (
+            "Failed to unmarshal value {value} to type {type}: {exception}"
+        ).format(
+            value=self.value, type=self.type,
+            exception=self.original_exception,
+        )
+
+
+@attr.s(hash=True)
+class InvalidCustomFormatSchemaValue(UnmarshallerError):
+    """Value failed to format with custom formatter"""
+    value = attr.ib()
+    type = attr.ib()
+    original_exception = attr.ib()
+
+    def __str__(self):
+        return (
+            "Failed to format value {value} to format {type}: {exception}"
+        ).format(
+            value=self.value, type=self.type,
+            exception=self.original_exception,
+        )
+
+
+@attr.s(hash=True)
+class FormatterNotFoundError(UnmarshallerError):
+    """Formatter not found to unmarshal"""
+    type_format = attr.ib()
+
+    def __str__(self):
+        return "Formatter not found for {format} format".format(
+            format=self.type_format)
+
+
+@attr.s(hash=True)
+class UnmarshallerStrictTypeError(UnmarshallerError):
+    value = attr.ib()
+    types = attr.ib()
+
+    def __str__(self):
+        types = ', '.join(list(map(str, self.types)))
+        return "Value {value} is not one of types: {types}".format(
+            value=self.value, types=types)

openapi_core/unmarshalling/schemas/factories.py

@@ -0,0 +1,62 @@
+import warnings
+
+from openapi_core.schema.schemas.enums import SchemaType, SchemaFormat
+from openapi_core.unmarshalling.schemas.exceptions import (
+    FormatterNotFoundError,
+)
+from openapi_core.unmarshalling.schemas.unmarshallers import (
+    StringUnmarshaller, IntegerUnmarshaller, NumberUnmarshaller,
+    BooleanUnmarshaller, ArrayUnmarshaller, ObjectUnmarshaller,
+    AnyUnmarshaller,
+)
+
+
+class SchemaUnmarshallersFactory(object):
+
+    PRIMITIVE_UNMARSHALLERS = {
+        SchemaType.STRING: StringUnmarshaller,
+        SchemaType.INTEGER: IntegerUnmarshaller,
+        SchemaType.NUMBER: NumberUnmarshaller,
+        SchemaType.BOOLEAN: BooleanUnmarshaller,
+    }
+    COMPLEX_UNMARSHALLERS = {
+        SchemaType.ARRAY: ArrayUnmarshaller,
+        SchemaType.OBJECT: ObjectUnmarshaller,
+        SchemaType.ANY: AnyUnmarshaller,
+    }
+
+    def __init__(self, custom_formatters=None):
+        if custom_formatters is None:
+            custom_formatters = {}
+        self.custom_formatters = custom_formatters
+
+    def create(self, schema, type_override=None):
+        """Create unmarshaller from the schema."""
+        if schema.deprecated:
+            warnings.warn("The schema is deprecated", DeprecationWarning)
+
+        schema_type = type_override or schema.type
+        if schema_type in self.PRIMITIVE_UNMARSHALLERS:
+            klass = self.PRIMITIVE_UNMARSHALLERS[schema_type]
+            kwargs = dict(schema=schema)
+
+        elif schema_type in self.COMPLEX_UNMARSHALLERS:
+            klass = self.COMPLEX_UNMARSHALLERS[schema_type]
+            kwargs = dict(schema=schema, unmarshallers_factory=self)
+
+        formatter = self.get_formatter(klass.FORMATTERS, schema.format)
+
+        if formatter is None:
+            raise FormatterNotFoundError(schema.format)
+
+        return klass(formatter, **kwargs)
+
+    def get_formatter(self, formatters, type_format=SchemaFormat.NONE):
+        try:
+            schema_format = SchemaFormat(type_format)
+        except ValueError:
+            return self.custom_formatters.get(type_format)
+        else:
+            if schema_format == SchemaFormat.NONE:
+                return lambda x: x
+            return formatters.get(schema_format)

openapi_core/unmarshalling/schemas/unmarshallers.py

@@ -0,0 +1,240 @@
+import logging
+
+from six import text_type, binary_type, integer_types
+from six import iteritems
+
+from openapi_core.extensions.models.factories import ModelFactory
+from openapi_core.schema.schemas.enums import SchemaFormat, SchemaType
+from openapi_core.schema.schemas.exceptions import (
+    ValidateError,
+)
+from openapi_core.schema.schemas.types import NoValue
+from openapi_core.unmarshalling.schemas.exceptions import (
+    UnmarshalError,
+    InvalidCustomFormatSchemaValue,
+    UnmarshallerStrictTypeError,
+)
+from openapi_core.unmarshalling.schemas.util import (
+    forcebool, format_date, format_datetime, format_byte, format_uuid,
+    format_number,
+)
+
+log = logging.getLogger(__name__)
+
+
+class StrictUnmarshaller(object):
+
+    STRICT_TYPES = ()
+
+    def __call__(self, value, strict=True):
+        if strict and not self._is_strict(value):
+            raise UnmarshallerStrictTypeError(value, self.STRICT_TYPES)
+
+        return value
+
+    def _is_strict(self, value):
+        if not self.STRICT_TYPES:
+            return True
+
+        return isinstance(value, self.STRICT_TYPES)
+
+
+class PrimitiveTypeUnmarshaller(StrictUnmarshaller):
+
+    FORMATTERS = {}
+
+    def __init__(self, formatter, schema):
+        self.formatter = formatter
+        self.schema = schema
+
+    def __call__(self, value=NoValue, strict=True):
+        if value is NoValue:
+            value = self.schema.default
+        if value is None:
+            return
+        value = super(PrimitiveTypeUnmarshaller, self).__call__(
+            value, strict=strict)
+
+        return self.format(value)
+
+    def format(self, value):
+        try:
+            return self.formatter(value)
+        except ValueError as exc:
+            raise InvalidCustomFormatSchemaValue(
+                value, self.schema.format, exc)
+
+
+class StringUnmarshaller(PrimitiveTypeUnmarshaller):
+
+    STRICT_TYPES = (text_type, binary_type)
+    FORMATTERS = {
+        SchemaFormat.NONE: text_type,
+        SchemaFormat.PASSWORD: text_type,
+        SchemaFormat.DATE: format_date,
+        SchemaFormat.DATETIME: format_datetime,
+        SchemaFormat.BINARY: binary_type,
+        SchemaFormat.UUID: format_uuid,
+        SchemaFormat.BYTE: format_byte,
+    }
+
+
+class IntegerUnmarshaller(PrimitiveTypeUnmarshaller):
+
+    STRICT_TYPES = integer_types
+    FORMATTERS = {
+        SchemaFormat.NONE: int,
+        SchemaFormat.INT32: int,
+        SchemaFormat.INT64: int,
+    }
+
+
+class NumberUnmarshaller(PrimitiveTypeUnmarshaller):
+
+    STRICT_TYPES = (float, ) + integer_types
+    FORMATTERS = {
+        SchemaFormat.NONE: format_number,
+        SchemaFormat.FLOAT: float,
+        SchemaFormat.DOUBLE: float,
+    }
+
+
+class BooleanUnmarshaller(PrimitiveTypeUnmarshaller):
+
+    STRICT_TYPES = (bool, )
+    FORMATTERS = {
+        SchemaFormat.NONE: forcebool,
+    }
+
+
+class ComplexUnmarshaller(PrimitiveTypeUnmarshaller):
+
+    def __init__(self, formatter, schema, unmarshallers_factory):
+        super(ComplexUnmarshaller, self).__init__(formatter, schema)
+        self.unmarshallers_factory = unmarshallers_factory
+
+
+class ArrayUnmarshaller(ComplexUnmarshaller):
+
+    STRICT_TYPES = (list, tuple)
+    FORMATTERS = {}
+
+    @property
+    def items_unmarshaller(self):
+        return self.unmarshallers_factory.create(self.schema.items)
+
+    def __call__(self, value=NoValue, strict=True):
+        value = super(ArrayUnmarshaller, self).__call__(value, strict=strict)
+
+        self.unmarshallers_factory.create(self.schema.items)
+
+        return list(map(self.items_unmarshaller, value))
+
+
+class ObjectUnmarshaller(ComplexUnmarshaller):
+
+    STRICT_TYPES = (dict, )
+    FORMATTERS = {}
+
+    @property
+    def model_factory(self):
+        return ModelFactory()
+
+    def __call__(self, value=NoValue, strict=True):
+        value = super(ObjectUnmarshaller, self).__call__(value, strict=strict)
+
+        if self.schema.one_of:
+            properties = None
+            for one_of_schema in self.schema.one_of:
+                try:
+                    unmarshalled = self._unmarshal_properties(
+                        value, one_of_schema, strict=strict)
+                except (UnmarshalError, ValueError):
+                    pass
+                else:
+                    if properties is not None:
+                        log.warning("multiple valid oneOf schemas found")
+                        continue
+                    properties = unmarshalled
+
+            if properties is None:
+                log.warning("valid oneOf schema not found")
+
+        else:
+            properties = self._unmarshal_properties(value)
+
+        if 'x-model' in self.schema.extensions:
+            extension = self.schema.extensions['x-model']
+            return self.model_factory.create(properties, name=extension.value)
+
+        return properties
+
+    def _unmarshal_properties(
+            self, value=NoValue, one_of_schema=None, strict=True):
+        all_props = self.schema.get_all_properties()
+        all_props_names = self.schema.get_all_properties_names()
+
+        if one_of_schema is not None:
+            all_props.update(one_of_schema.get_all_properties())
+            all_props_names |= one_of_schema.\
+                get_all_properties_names()
+
+        value_props_names = value.keys()
+        extra_props = set(value_props_names) - set(all_props_names)
+
+        properties = {}
+        if self.schema.additional_properties is not True:
+            for prop_name in extra_props:
+                prop_value = value[prop_name]
+                properties[prop_name] = self.unmarshallers_factory.create(
+                    self.schema.additional_properties)(
+                        prop_value, strict=strict)
+
+        for prop_name, prop in iteritems(all_props):
+            try:
+                prop_value = value[prop_name]
+            except KeyError:
+                if prop.default is NoValue:
+                    continue
+                prop_value = prop.default
+
+            properties[prop_name] = self.unmarshallers_factory.create(
+                prop)(prop_value, strict=strict)
+
+        return properties
+
+
+class AnyUnmarshaller(ComplexUnmarshaller):
+
+    SCHEMA_TYPES_ORDER = [
+        SchemaType.OBJECT, SchemaType.ARRAY, SchemaType.BOOLEAN,
+        SchemaType.INTEGER, SchemaType.NUMBER, SchemaType.STRING,
+    ]
+
+    def __call__(self, value=NoValue, strict=True):
+        one_of_schema = self._get_one_of_schema(value)
+        if one_of_schema:
+            return self.unmarshallers_factory.create(one_of_schema)(
+                value, strict=strict)
+
+        for schema_type in self.SCHEMA_TYPES_ORDER:
+            try:
+                unmarshaller = self.unmarshallers_factory.create(
+                    self.schema, type_override=schema_type)
+                return unmarshaller(value, strict=strict)
+            except (UnmarshalError, ValueError):
+                continue
+
+        log.warning("failed to unmarshal any type")
+        return value
+
+    def _get_one_of_schema(self, value):
+        if not self.schema.one_of:
+            return
+        for subschema in self.schema.one_of:
+            try:
+                subschema.validate(value)
+            except ValidateError:
+                continue
+            else:
+                return subschema

openapi_core/unmarshalling/schemas/util.py

@@ -0,0 +1,40 @@
+"""OpenAPI core schemas util module"""
+from base64 import b64decode
+import datetime
+from distutils.util import strtobool
+from six import string_types, text_type, integer_types
+import strict_rfc3339
+from uuid import UUID
+
+
+def forcebool(val):
+    if isinstance(val, string_types):
+        val = strtobool(val)
+
+    return bool(val)
+
+
+def format_date(value):
+    return datetime.datetime.strptime(value, '%Y-%m-%d').date()
+
+
+def format_datetime(value):
+    timestamp = strict_rfc3339.rfc3339_to_timestamp(value)
+    return datetime.datetime.utcfromtimestamp(timestamp)
+
+
+def format_uuid(value):
+    if isinstance(value, UUID):
+        return value
+    return UUID(value)
+
+
+def format_byte(value, encoding='utf8'):
+    return text_type(b64decode(value), encoding)
+
+
+def format_number(value):
+    if isinstance(value, integer_types + (float, )):
+        return value
+
+    return float(value)

openapi_core/validation/request/datatypes.py

@@ -10,6 +10,18 @@ from six.moves.urllib.parse import urljoin
 
 @attr.s
 class RequestParameters(object):
+    """OpenAPI request parameters dataclass.
+
+    Attributes:
+        path
+            Path parameters as dict.
+        query
+            Query string parameters as MultiDict. Must support getlist method.
+        header
+            Request headers as dict.
+        cookie
+            Request cookies as dict.
+    """
     path = attr.ib(factory=dict)
     query = attr.ib(factory=ImmutableMultiDict)
     header = attr.ib(factory=dict)

openapi_core/validation/request/validators.py

@@ -7,7 +7,7 @@ from openapi_core.schema.media_types.exceptions import (
 )
 from openapi_core.schema.operations.exceptions import InvalidOperation
 from openapi_core.schema.parameters.exceptions import (
-    OpenAPIParameterError, MissingRequiredParameter,
+    OpenAPIParameterError, MissingRequiredParameter, MissingParameter,
 )
 from openapi_core.schema.paths.exceptions import InvalidPath
 from openapi_core.schema.request_bodies.exceptions import MissingRequestBody
@@ -74,9 +74,11 @@ class RequestValidator(object):
             except MissingRequiredParameter as exc:
                 errors.append(exc)
                 continue
-            except OpenAPIParameterError:
+            except MissingParameter:
+                if not param.schema or not param.schema.has_default():
                     continue
-
+                casted = param.schema.default
+            else:
                 try:
                     casted = param.cast(raw_value)
                 except OpenAPIParameterError as exc:

tests/integration/data/v3.0/petstore.yaml

@@ -278,6 +278,7 @@ components:
         $ref: "#/components/schemas/Pet"
     PetsData:
       type: object
+      x-model: PetsData
       required:
         - data
       properties:
@@ -285,6 +286,7 @@ components:
           $ref: "#/components/schemas/Pets"
     PetData:
       type: object
+      x-model: PetData
       required:
         - data
       properties:
@@ -292,6 +294,7 @@ components:
           $ref: "#/components/schemas/Pet"
     TagCreate:
       type: object
+      x-model: TagCreate
       required:
         - name
       properties:
@@ -316,6 +319,7 @@ components:
         message:
           type: string
     ExtendedError:
+      x-model: ExtendedError
       allOf:
         - $ref: "#/components/schemas/Error"
         - type: object

tests/unit/schema/test_schemas.py

@@ -7,11 +7,16 @@ import pytest
 from openapi_core.extensions.models.models import Model
 from openapi_core.schema.schemas.enums import SchemaFormat, SchemaType
 from openapi_core.schema.schemas.exceptions import (
-    InvalidSchemaValue, OpenAPISchemaError, UnmarshallerStrictTypeError,
+    InvalidSchemaValue, OpenAPISchemaError,
-    UnmarshalValueError, UnmarshalError, InvalidCustomFormatSchemaValue,
-    FormatterNotFoundError,
 )
 from openapi_core.schema.schemas.models import Schema
+from openapi_core.schema.schemas.types import NoValue
+from openapi_core.unmarshalling.schemas.exceptions import (
+    InvalidCustomFormatSchemaValue,
+    FormatterNotFoundError,
+    UnmarshalError,
+    UnmarshallerStrictTypeError,
+)
 
 from six import b, u
 
@@ -50,9 +55,8 @@ class TestSchemaUnmarshal(object):
         schema = Schema(schema_type)
         value = ''
 
-        result = schema.unmarshal(value)
+        with pytest.raises(UnmarshallerStrictTypeError):
-
+            schema.unmarshal(value)
-        assert result is None
 
     def test_string_valid(self):
         schema = Schema('string')
@@ -93,25 +97,19 @@ class TestSchemaUnmarshal(object):
         with pytest.raises(UnmarshallerStrictTypeError):
             schema.unmarshal(value)
 
-    def test_string_none(self):
-        schema = Schema('string')
-        value = None
-
-        with pytest.raises(UnmarshalError):
-            schema.unmarshal(value)
-
     def test_string_default(self):
         default_value = 'default'
         schema = Schema('string', default=default_value)
-        value = None
+        value = NoValue
 
-        with pytest.raises(UnmarshalError):
+        result = schema.unmarshal(value)
-            schema.unmarshal(value)
 
-    def test_string_default_nullable(self):
+        assert result == default_value
-        default_value = 'default'
+
+    @pytest.mark.parametrize('default_value', ['default', None])
+    def test_string_default_nullable(self, default_value):
         schema = Schema('string', default=default_value, nullable=True)
-        value = None
+        value = NoValue
 
         result = schema.unmarshal(value)
 
@@ -161,7 +159,7 @@ class TestSchemaUnmarshal(object):
         schema = Schema('string', schema_format=unknown_format)
         value = 'x'
 
-        with pytest.raises(OpenAPISchemaError):
+        with pytest.raises(FormatterNotFoundError):
             schema.unmarshal(value)
 
     def test_string_format_invalid_value(self):
@@ -172,7 +170,7 @@ class TestSchemaUnmarshal(object):
         with pytest.raises(
             FormatterNotFoundError,
             message=(
-                'Formatter not found for custom format to unmarshal value x'
+                'Formatter not found for custom format'
             ),
         ):
             schema.unmarshal(value)
@@ -215,21 +213,22 @@ class TestSchemaUnmarshal(object):
             schema.unmarshal(value)
 
     def test_integer_default(self):
-        default_value = '123'
+        default_value = 123
         schema = Schema('integer', default=default_value)
-        value = None
+        value = NoValue
 
-        with pytest.raises(UnmarshalError):
+        result = schema.unmarshal(value)
-            schema.unmarshal(value)
+
+        assert result == default_value
 
     def test_integer_default_nullable(self):
-        default_value = '123'
+        default_value = 123
         schema = Schema('integer', default=default_value, nullable=True)
         value = None
 
         result = schema.unmarshal(value)
 
-        assert result == default_value
+        assert result is None
 
     def test_integer_invalid(self):
         schema = Schema('integer')
@@ -250,14 +249,14 @@ class TestSchemaUnmarshal(object):
         schema = Schema('array', items=Schema('string'))
         value = '123'
 
-        with pytest.raises(UnmarshalValueError):
+        with pytest.raises(UnmarshallerStrictTypeError):
             schema.unmarshal(value)
 
     def test_array_of_integer_string_invalid(self):
         schema = Schema('array', items=Schema('integer'))
         value = '123'
 
-        with pytest.raises(UnmarshalValueError):
+        with pytest.raises(UnmarshallerStrictTypeError):
             schema.unmarshal(value)
 
     def test_boolean_valid(self):
@@ -702,7 +701,7 @@ class TestSchemaValidate(object):
         unknown_format = 'unknown'
         schema = Schema('string', schema_format=unknown_format)
 
-        with pytest.raises(OpenAPISchemaError):
+        with pytest.raises(InvalidSchemaValue):
             schema.validate(value)
 
     @pytest.mark.parametrize('value', [u(""), u("a"), u("ab")])