def validate_items(self):
from python_jsonschema_objects import classbuilder
if self.__itemtype__ is None:
return
type_checks = self.__itemtype__
if not isinstance(type_checks, (tuple, list)):
# we were given items = {'type': 'blah'} ; thus ensure the type for all data.
type_checks = [type_checks] * len(self.data)
elif len(type_checks) > len(self.data):
raise ValidationError(
"{1} does not have sufficient elements to validate against {0}"
.format(self.__itemtype__, self.data))
typed_elems = []
for elem, typ in zip(self.data, type_checks):
if isinstance(typ, dict):
for param, paramval in six.iteritems(typ):
validator = registry(param)
if validator is not None:
validator(paramval, elem, typ)
elif util.safe_issubclass(typ, classbuilder.LiteralValue):
val = typ(elem)
val.validate()
typed_elems.append(val)
elif util.safe_issubclass(typ, classbuilder.ProtocolBase):
if not isinstance(elem, typ):
try:
if isinstance(elem, (six.string_types, six.integer_types, float)):
val = typ(elem)
else:
val = typ(**util.coerce_for_expansion(elem))
except TypeError as e:
raise ValidationError("'{0}' is not a valid value for '{1}': {2}"
.format(elem, typ, e))
else:
val = elem
val.validate()
typed_elems.append(val)
elif util.safe_issubclass(typ, ArrayValidator):
val = typ(elem)
val.validate()
typed_elems.append(val)
elif isinstance(typ, classbuilder.TypeProxy):
try:
if isinstance(elem, (six.string_types, six.integer_types, float)):
val = typ(elem)
else:
val = typ(**util.coerce_for_expansion(elem))
except TypeError as e:
raise ValidationError("'{0}' is not a valid value for '{1}': {2}"
.format(elem, typ, e))
val.validate()
typed_elems.append(val)
return typed_elems
def create(name, item_constraint=None, **addl_constraints):
""" Create an array validator based on the passed in constraints.
If item_constraint is a tuple, it is assumed that tuple validation
is being performed. If it is a class or dictionary, list validation
will be performed. Classes are assumed to be subclasses of ProtocolBase,
while dictionaries are expected to be basic types ('string', 'number', ...).
addl_constraints is expected to be key-value pairs of any of the other
constraints permitted by JSON Schema v4.
"""
from python_jsonschema_objects import classbuilder
props = {}
if item_constraint is not None:
if isinstance(item_constraint, (tuple, list)):
for i, elem in enumerate(item_constraint):
isdict = isinstance(elem, (dict, ))
isklass = isinstance(elem, type) and util.safe_issubclass(
elem,
(classbuilder.ProtocolBase, classbuilder.LiteralValue))
if not any([isdict, isklass]):
raise TypeError(
"Item constraint (position {0}) was not a schema".
format(i))
else:
isdict = isinstance(item_constraint, (dict, ))
isklass = isinstance(
item_constraint, type) and util.safe_issubclass(
item_constraint,
(classbuilder.ProtocolBase, classbuilder.LiteralValue))
if not any([isdict, isklass]):
raise TypeError("Item constraint was not a schema")
if isdict and item_constraint['type'] == 'array':
item_constraint = ArrayValidator.create(
name + "#sub",
item_constraint=item_constraint['items'],
addl_constraints=item_constraint)
props['__itemtype__'] = item_constraint
props.update(addl_constraints)
validator = type(str(name), (ArrayValidator, ), props)
return validator
def _make_type(self, typ, val):
import python_jsonschema_objects.classbuilder as cb
if getattr(typ, 'isLiteralClass', None) is True:
return typ(val)
if util.safe_issubclass(typ, cb.ProtocolBase):
return typ(**util.coerce_for_expansion(val))
if util.safe_issubclass(typ, validators.ArrayValidator):
return typ(val)
raise validators.ValidationError(
"additionalProperty type {0} was neither a literal "
"nor a schema wrapper: {1}".format(typ, val))
def __setattr__(self, name, val):
if name.startswith("_"):
object.__setattr__(self, name, val)
elif name in self.__propinfo__:
# If its in __propinfo__, then it actually has a property defined.
# The property does special validation, so we actually need to
# run its setter. We get it from the class definition and call
# it directly. XXX Heinous.
prop = self.__class__.__dict__[self.__prop_names__[name]]
prop.fset(self, val)
else:
# This is an additional property of some kind
typ = getattr(self, '__extensible__', None)
if typ is False:
raise validators.ValidationError(
"Attempted to set unknown property '{0}', "
"but 'additionalProperties' is false.".format(name))
if typ is True:
# There is no type defined, so just make it a basic literal
# Pick the type based on the type of the values
valtype = [k for k, t in six.iteritems(self.__SCHEMA_TYPES__)
if t is not None and isinstance(val, t)]
valtype = valtype[0]
val = MakeLiteral(name, valtype, val)
elif isinstance(typ, type) and getattr(typ, 'isLiteralClass', None) is True:
val = typ(val)
elif isinstance(typ, type) and util.safe_issubclass(typ, ProtocolBase):
val = typ(**util.coerce_for_expansion(val))
self._extended_properties[name] = val
def apply(self, klass, resolve_map={}):
""" Attach this property to the provided class
Args:
klass: (ProtocolBase) The class wrapper to which this
property should be attached.
resolve_map: (dict) A map of URIs to resolved ProtocolBase
objects.
"""
assert util.safe_issubclass(klass, ProtocolBase)
if self.is_array:
typ = resolve_map[self.refuri]
propdata = {
'type':
'array',
'validator':
python_jsonschema_objects.wrapper_types.ArrayWrapper.create(
self.refuri, item_constraint=typ)
}
else:
propdata = {'type': resolve_map[self.refuri]}
resolved_property = make_property(self.property_name, propdata,
resolve_map[self.refuri].__doc__)
setattr(klass, self.property_name, resolved_property)
klass.__propinfo__[self.property_name] = {
"$ref": self.refuri,
"type": resolve_map[self.refuri]
}
def __setattr__(self, name, val):
if name.startswith("_"):
object.__setattr__(self, name, val)
elif name in self.__propinfo__:
# If its in __propinfo__, then it actually has a property defined.
# The property does special validation, so we actually need to
# run its setter. We get it from the class definition and call
# it directly. XXX Heinous.
prop = self.__class__.__dict__[self.__prop_names__[name]]
prop.fset(self, val)
else:
# This is an additional property of some kind
typ = getattr(self, '__extensible__', None)
if typ is False:
raise validators.ValidationError(
"Attempted to set unknown property '{0}', "
"but 'additionalProperties' is false.".format(name))
if typ is True:
# There is no type defined, so just make it a basic literal
# Pick the type based on the type of the values
valtype = [
k for k, t in six.iteritems(self.__SCHEMA_TYPES__)
if t is not None and isinstance(val, t)
]
valtype = valtype[0]
val = MakeLiteral(name, valtype, val)
elif isinstance(
typ,
type) and getattr(typ, 'isLiteralClass', None) is True:
val = typ(val)
elif isinstance(typ, type) and util.safe_issubclass(
typ, ProtocolBase):
val = typ(**util.coerce_for_expansion(val))
self._extended_properties[name] = val
def _make_type(self, typ, val):
import python_jsonschema_objects.classbuilder as cb
if getattr(
typ, 'isLiteralClass', None) is True:
return typ(val)
if util.safe_issubclass(typ, cb.ProtocolBase):
return typ(**util.coerce_for_expansion(val))
if util.safe_issubclass(typ, validators.ArrayValidator):
return typ(val)
raise validators.ValidationError(
"additionalProperty type {0} was neither a literal "
"nor a schema wrapper: {1}".format(typ, val))
def create(name, item_constraint=None, **addl_constraints):
""" Create an array validator based on the passed in constraints.
If item_constraint is a tuple, it is assumed that tuple validation
is being performed. If it is a class or dictionary, list validation
will be performed. Classes are assumed to be subclasses of ProtocolBase,
while dictionaries are expected to be basic types ('string', 'number', ...).
addl_constraints is expected to be key-value pairs of any of the other
constraints permitted by JSON Schema v4.
"""
from python_jsonschema_objects import classbuilder
props = {}
if item_constraint is not None:
if isinstance(item_constraint, (tuple, list)):
for i, elem in enumerate(item_constraint):
isdict = isinstance(elem, (dict,))
isklass = isinstance( elem, type) and util.safe_issubclass(
elem, (classbuilder.ProtocolBase, classbuilder.LiteralValue))
if not any([isdict, isklass]):
raise TypeError(
"Item constraint (position {0}) was not a schema".format(i))
else:
isdict = isinstance(item_constraint, (dict,))
isklass = isinstance( item_constraint, type) and util.safe_issubclass(
item_constraint, (classbuilder.ProtocolBase, classbuilder.LiteralValue))
if not any([isdict, isklass]):
raise TypeError("Item constraint was not a schema")
if isdict and item_constraint['type'] == 'array':
item_constraint = ArrayValidator.create(name + "#sub",
item_constraint=item_constraint[
'items'],
addl_constraints=item_constraint)
props['__itemtype__'] = item_constraint
props.update(addl_constraints)
validator = type(str(name), (ArrayValidator,), props)
return validator
def apply(self, klass, resolve_map={}):
""" Attach this property to the provided class
Args:
klass: (ProtocolBase) The class wrapper to which this
property should be attached.
resolve_map: (dict) A map of URIs to resolved ProtocolBase
objects.
"""
assert util.safe_issubclass(klass, ProtocolBase)
resolved_property = make_property(self.property_name,
{'type': resolve_map[self.refuri]},
resolve_map[self.refuri].__doc__)
setattr(klass, self.property_name, resolved_property)
klass.__propinfo__[self.property_name] = {
"$ref": self.refuri,
"type": resolve_map[self.refuri]
}
def _construct(self, uri, clsdata, parent=(ProtocolBase,)):
if 'oneOf' in clsdata:
potential_parents = self.resolve_classes(clsdata['oneOf'])
for p in potential_parents:
if util.safe_issubclass(p, ProtocolBase):
self.resolved[uri] = self._build_object(
uri,
clsdata,
(p,))
else:
raise Exception("Don't know how to deal with this")
return self.resolved[uri]
elif 'anyOf' in clsdata:
raise NotImplementedError(
"anyOf is not supported as bare property")
elif 'allOf' in clsdata:
potential_parents = self.resolve_classes(clsdata['allOf'])
parents = []
for p in potential_parents:
if isinstance(p, dict):
# This is additional constraints
clsdata.update(p)
elif util.safe_issubclass(p, ProtocolBase):
parents.append(p)
self.resolved[uri] = self._build_object(
uri,
clsdata,
parents)
return self.resolved[uri]
elif '$ref' in clsdata:
if 'type' in clsdata and util.safe_issubclass(
clsdata['type'], (ProtocolBase, LiteralValue)):
# It's possible that this reference was already resolved, in which
# case it will have its type parameter set
logging.debug("Using previously resolved type "
"(with different URI) for %s", uri)
self.resolved[uri] = clsdata['type']
elif uri in self.resolved:
logging.debug("Using previously resolved object for %s", uri)
else:
logging.debug("Resolving object for %s", uri)
with self.resolver.resolving(uri) as resolved:
self.resolved[uri] = None # Set incase there is a circular reference in schema definition
self.resolved[uri] = self._build_object(
uri,
resolved,
parent)
return self.resolved[uri]
elif clsdata.get('type') == 'array' and 'items' in clsdata:
self.resolved[uri] = self._build_object(
uri,
clsdata,
parent)
elif (clsdata.get('type', None) == 'object' or
clsdata.get('properties', None) is not None or
clsdata.get('additionalProperties', False)):
self.resolved[uri] = self._build_object(
uri,
clsdata,
parent)
return self.resolved[uri]
elif clsdata.get('type') in ('integer', 'number', 'string', 'boolean', 'null'):
self.resolved[uri] = self._build_literal(
uri,
clsdata)
return self.resolved[uri]
elif 'enum' in clsdata:
obj = self._build_literal(uri, clsdata)
self.resolved[uri] = obj
return obj
elif 'type' in clsdata and util.safe_issubclass(clsdata['type'], ProtocolBase):
self.resolved[uri] = clsdata.get('type')
return self.resolved[uri]
else:
raise NotImplementedError(
"Unable to parse schema object '{0}' with "
"no type and no reference".format(clsdata))
def _construct(self, uri, clsdata, parent=(ProtocolBase,),**kw):
if 'anyOf' in clsdata:
raise NotImplementedError(
"anyOf is not supported as bare property")
elif 'oneOf' in clsdata:
self.resolved[uri] = self._build_object(
uri,
clsdata,
parent, **kw)
return self.resolved[uri]
elif 'allOf' in clsdata:
potential_parents = self.resolve_classes(clsdata['allOf'])
parents = []
for p in potential_parents:
if isinstance(p, dict):
# This is additional constraints
clsdata.update(p)
elif util.safe_issubclass(p, ProtocolBase):
parents.append(p)
self.resolved[uri] = self._build_object(
uri,
clsdata,
parents,**kw)
return self.resolved[uri]
elif '$ref' in clsdata:
if 'type' in clsdata and util.safe_issubclass(
clsdata['type'], (ProtocolBase, LiteralValue)):
# It's possible that this reference was already resolved, in which
# case it will have its type parameter set
logger.debug(util.lazy_format("Using previously resolved type "
"(with different URI) for {0}", uri))
self.resolved[uri] = clsdata['type']
elif uri in self.resolved:
logger.debug(util.lazy_format("Using previously resolved object for {0}", uri))
else:
ref = clsdata['$ref']
refuri = util.resolve_ref_uri(
self.resolver.resolution_scope, ref)
if refuri in self.under_construction:
logger.debug(
util.lazy_format(
"Resolving cyclic reference from {0} to {1}.",
uri,
refuri))
return TypeRef(refuri, self.resolved)
else:
logger.debug(
util.lazy_format(
"Resolving direct reference object for {0}: {1}",
uri,
refuri))
with self.resolver.resolving(refuri) as resolved:
self.resolved[uri] = self.construct(
refuri,
resolved,
parent)
return self.resolved[uri]
elif clsdata.get('type') == 'array' and 'items' in clsdata:
clsdata_copy = {}
clsdata_copy.update(clsdata)
self.resolved[uri] = python_jsonschema_objects.wrapper_types.ArrayWrapper.create(
uri,
item_constraint=clsdata_copy.pop('items'),
classbuilder=self,
**clsdata_copy)
return self.resolved[uri]
elif isinstance(clsdata.get('type'), list):
types = []
for i, item_detail in enumerate(clsdata['type']):
subdata = {k: v for k, v in six.iteritems(clsdata) if k != 'type'}
subdata['type'] = item_detail
types.append(self._build_literal(
uri + "_%s" % i,
subdata))
self.resolved[uri] = TypeProxy(types)
return self.resolved[uri]
elif (clsdata.get('type', None) == 'object' or
clsdata.get('properties', None) is not None or
clsdata.get('additionalProperties', False)):
self.resolved[uri] = self._build_object(
uri,
clsdata,
parent,**kw)
return self.resolved[uri]
elif clsdata.get('type') in ('integer', 'number', 'string', 'boolean', 'null'):
self.resolved[uri] = self._build_literal(
uri,
clsdata)
return self.resolved[uri]
elif 'enum' in clsdata:
obj = self._build_literal(uri, clsdata)
self.resolved[uri] = obj
return obj
elif 'type' in clsdata and util.safe_issubclass(clsdata['type'], ProtocolBase):
self.resolved[uri] = clsdata.get('type')
return self.resolved[uri]
else:
raise NotImplementedError(
"Unable to parse schema object '{0}' with "
"no type and no reference".format(clsdata))
def _construct(self, uri, clsdata, parent=(ProtocolBase,), **kw):
if "anyOf" in clsdata:
raise NotImplementedError("anyOf is not supported as bare property")
elif "oneOf" in clsdata:
""" If this object itself has a 'oneOf' designation,
then construct a TypeProxy.
"""
klasses = self.construct_objects(clsdata["oneOf"], uri)
logger.debug(
util.lazy_format("Designating {0} as TypeProxy for {1}", uri, klasses)
)
self.resolved[uri] = TypeProxy(klasses, title=clsdata.get("title"))
return self.resolved[uri]
elif "allOf" in clsdata:
potential_parents = self.expand_references(uri, clsdata["allOf"])
parents = []
for p in potential_parents:
if isinstance(p, dict):
# This is additional constraints
clsdata.update(p)
elif util.safe_issubclass(p, ProtocolBase):
parents.append(p)
self.resolved[uri] = self._build_object(uri, clsdata, parents, **kw)
return self.resolved[uri]
elif "$ref" in clsdata:
if "type" in clsdata and util.safe_issubclass(
clsdata["type"], (ProtocolBase, LiteralValue)
):
# It's possible that this reference was already resolved, in which
# case it will have its type parameter set
logger.debug(
util.lazy_format(
"Using previously resolved type "
"(with different URI) for {0}",
uri,
)
)
self.resolved[uri] = clsdata["type"]
elif uri in self.resolved:
logger.debug(
util.lazy_format("Using previously resolved object for {0}", uri)
)
else:
ref = clsdata["$ref"]
typ = self.resolve_type(ref, uri)
self.resolved[uri] = typ
return self.resolved[uri]
elif clsdata.get("type") == "array" and "items" in clsdata:
clsdata_copy = {}
clsdata_copy.update(clsdata)
self.resolved[
uri
] = python_jsonschema_objects.wrapper_types.ArrayWrapper.create(
uri,
item_constraint=clsdata_copy.pop("items"),
classbuilder=self,
**clsdata_copy
)
return self.resolved[uri]
elif isinstance(clsdata.get("type"), list):
types = []
for i, item_detail in enumerate(clsdata["type"]):
subdata = {k: v for k, v in six.iteritems(clsdata) if k != "type"}
subdata["type"] = item_detail
types.append(self._build_literal(uri + "_%s" % i, subdata))
self.resolved[uri] = TypeProxy(types)
return self.resolved[uri]
elif (
clsdata.get("type", None) == "object"
or clsdata.get("properties", None) is not None
or clsdata.get("additionalProperties", False)
):
self.resolved[uri] = self._build_object(uri, clsdata, parent, **kw)
return self.resolved[uri]
elif clsdata.get("type") in ("integer", "number", "string", "boolean", "null"):
self.resolved[uri] = self._build_literal(uri, clsdata)
return self.resolved[uri]
elif "enum" in clsdata:
obj = self._build_literal(uri, clsdata)
self.resolved[uri] = obj
return obj
elif "type" in clsdata and util.safe_issubclass(clsdata["type"], ProtocolBase):
self.resolved[uri] = clsdata.get("type")
return self.resolved[uri]
else:
raise NotImplementedError(
"Unable to parse schema object '{0}' with "
"no type and no reference".format(clsdata)
)
def setprop(self, val):
if isinstance(info['type'], (list, tuple)):
ok = False
errors = []
type_checks = []
for typ in info['type']:
if not isinstance(typ, dict):
type_checks.append(typ)
continue
typ = ProtocolBase.__SCHEMA_TYPES__[typ['type']]
if typ is None:
typ = type(None)
if isinstance(typ, (list, tuple)):
type_checks.extend(typ)
else:
type_checks.append(typ)
for typ in type_checks:
if isinstance(val, typ):
ok = True
break
elif hasattr(typ, 'isLiteralClass'):
try:
validator = typ(val)
except Exception as e:
errors.append("Failed to coerce to '{0}': {1}".format(
typ, e))
pass
else:
validator.validate()
ok = True
break
elif util.safe_issubclass(typ, ProtocolBase):
# force conversion- thus the val rather than validator assignment
try:
val = typ(**util.coerce_for_expansion(val))
except Exception as e:
errors.append("Failed to coerce to '{0}': {1}".format(
typ, e))
pass
else:
val.validate()
ok = True
break
elif util.safe_issubclass(typ, validators.ArrayValidator):
try:
val = typ(val)
except Exception as e:
errors.append("Failed to coerce to '{0}': {1}".format(
typ, e))
pass
else:
val.validate()
ok = True
break
if not ok:
errstr = "\n".join(errors)
raise validators.ValidationError(
"Object must be one of {0}: \n{1}".format(
info['type'], errstr))
elif info['type'] == 'array':
instance = info['validator'](val)
val = instance.validate()
elif getattr(info['type'], 'isLiteralClass', False) is True:
if not isinstance(val, info['type']):
validator = info['type'](val)
validator.validate()
elif util.safe_issubclass(info['type'], ProtocolBase):
if not isinstance(val, info['type']):
val = info['type'](**util.coerce_for_expansion(val))
val.validate()
elif isinstance(info['type'], TypeProxy):
val = info['type'](val)
elif info['type'] is None:
# This is the null value
if val is not None:
raise validators.ValidationError(
"None is only valid value for null")
else:
raise TypeError("Unknown object type: '{0}'".format(info['type']))
self._properties[prop] = val
def _construct(self, uri, clsdata, parent=(ProtocolBase, )):
if 'anyOf' in clsdata:
raise NotImplementedError(
"anyOf is not supported as bare property")
elif 'allOf' in clsdata:
potential_parents = self.resolve_classes(clsdata['allOf'])
parents = []
for p in potential_parents:
if isinstance(p, dict):
# This is additional constraints
clsdata.update(p)
elif util.safe_issubclass(p, ProtocolBase):
parents.append(p)
self.resolved[uri] = self._build_object(uri, clsdata, parents)
return self.resolved[uri]
elif '$ref' in clsdata:
if 'type' in clsdata and util.safe_issubclass(
clsdata['type'], (ProtocolBase, LiteralValue)):
# It's possible that this reference was already resolved, in which
# case it will have its type parameter set
logger.debug(
util.lazy_format(
"Using previously resolved type "
"(with different URI) for {0}", uri))
self.resolved[uri] = clsdata['type']
elif uri in self.resolved:
logger.debug(
util.lazy_format(
"Using previously resolved object for {0}", uri))
else:
logger.debug(util.lazy_format("Resolving object for {0}", uri))
with self.resolver.resolving(uri) as resolved:
self.resolved[
uri] = None # Set incase there is a circular reference in schema definition
self.resolved[uri] = self.construct(uri, resolved, parent)
return self.resolved[uri]
elif clsdata.get('type') == 'array' and 'items' in clsdata:
clsdata_copy = {}
clsdata_copy.update(clsdata)
self.resolved[uri] = validators.ArrayValidator.create(
uri,
item_constraint=clsdata_copy.pop('items'),
classbuilder=self,
**clsdata_copy)
return self.resolved[uri]
elif isinstance(clsdata.get('type'), list):
types = []
for i, item_detail in enumerate(clsdata['type']):
subdata = {
k: v
for k, v in six.iteritems(clsdata) if k != 'type'
}
subdata['type'] = item_detail
types.append(self._build_literal(uri + "_%s" % i, subdata))
self.resolved[uri] = TypeProxy(types)
return self.resolved[uri]
elif (clsdata.get('type', None) == 'object'
or clsdata.get('properties', None) is not None
or clsdata.get('additionalProperties', False)):
self.resolved[uri] = self._build_object(uri, clsdata, parent)
return self.resolved[uri]
elif clsdata.get('type') in ('integer', 'number', 'string', 'boolean',
'null'):
self.resolved[uri] = self._build_literal(uri, clsdata)
return self.resolved[uri]
elif 'enum' in clsdata:
obj = self._build_literal(uri, clsdata)
self.resolved[uri] = obj
return obj
elif 'type' in clsdata and util.safe_issubclass(
clsdata['type'], ProtocolBase):
self.resolved[uri] = clsdata.get('type')
return self.resolved[uri]
else:
raise NotImplementedError(
"Unable to parse schema object '{0}' with "
"no type and no reference".format(clsdata))
def validate_items(self):
""" Validates the items in the backing array, including
performing type validation.
Sets the _typed property and clears the dirty flag as a side effect
Returns:
The typed array
"""
logger.debug(fmt("Validating {}", self))
from python_jsonschema_objects import classbuilder
if self.__itemtype__ is None:
return
type_checks = self.__itemtype__
if not isinstance(type_checks, (tuple, list)):
# we were given items = {'type': 'blah'} ; thus ensure the type for all data.
type_checks = [type_checks] * len(self.data)
elif len(type_checks) > len(self.data):
raise ValidationError(
"{1} does not have sufficient elements to validate against {0}"
.format(self.__itemtype__, self.data))
typed_elems = []
for elem, typ in zip(self.data, type_checks):
if isinstance(typ, dict):
for param, paramval in six.iteritems(typ):
validator = registry(param)
if validator is not None:
validator(paramval, elem, typ)
typed_elems.append(elem)
elif util.safe_issubclass(typ, classbuilder.LiteralValue):
val = typ(elem)
val.validate()
typed_elems.append(val)
elif util.safe_issubclass(typ, classbuilder.ProtocolBase):
if not isinstance(elem, typ):
try:
if isinstance(elem, (six.string_types, six.integer_types, float)):
val = typ(elem)
else:
val = typ(**util.coerce_for_expansion(elem))
except TypeError as e:
raise ValidationError("'{0}' is not a valid value for '{1}': {2}"
.format(elem, typ, e))
else:
val = elem
val.validate()
typed_elems.append(val)
elif util.safe_issubclass(typ, ArrayWrapper):
val = typ(elem)
val.validate()
typed_elems.append(val)
elif isinstance(typ, (classbuilder.TypeProxy, classbuilder.TypeRef)):
try:
if isinstance(elem, (six.string_types, six.integer_types, float)):
val = typ(elem)
else:
val = typ(**util.coerce_for_expansion(elem))
except TypeError as e:
raise ValidationError("'{0}' is not a valid value for '{1}': {2}"
.format(elem, typ, e))
else:
val.validate()
typed_elems.append(val)
self._dirty = False
self._typed = typed_elems
return typed_elems
def setprop(self, val):
if isinstance(info['type'], (list, tuple)):
ok = False
errors = []
type_checks = []
for typ in info['type']:
if not isinstance(typ, dict):
type_checks.append(typ)
continue
typ = ProtocolBase.__SCHEMA_TYPES__[typ['type']]
if typ == None:
typ = type(None)
if isinstance(typ, (list, tuple)):
type_checks.extend(typ)
else:
type_checks.append(typ)
for typ in type_checks:
if isinstance(val, typ):
ok = True
break
elif hasattr(typ, 'isLiteralClass'):
try:
validator = typ(val)
except Exception as e:
errors.append(
"Failed to coerce to '{0}': {1}".format(typ, e))
pass
else:
validator.validate()
ok = True
break
elif util.safe_issubclass(typ, ProtocolBase):
# force conversion- thus the val rather than validator assignment
try:
val = typ(**util.coerce_for_expansion(val))
except Exception as e:
errors.append(
"Failed to coerce to '{0}': {1}".format(typ, e))
pass
else:
val.validate()
ok = True
break
if not ok:
errstr = "\n".join(errors)
raise validators.ValidationError(
"Object must be one of {0}: \n{1}".format(info['type'], errstr))
elif info['type'] == 'array':
instance = info['validator'](val)
val = instance.validate()
elif getattr(info['type'], 'isLiteralClass', False) is True:
if not isinstance(val, info['type']):
validator = info['type'](val)
validator.validate()
elif util.safe_issubclass(info['type'], ProtocolBase):
if not isinstance(val, info['type']):
val = info['type'](**util.coerce_for_expansion(val))
val.validate()
else:
raise TypeError("Unknown object type: '{0}'".format(info['type']))
self._properties[prop] = val
def create(name, item_constraint=None, **addl_constraints):
""" Create an array validator based on the passed in constraints.
If item_constraint is a tuple, it is assumed that tuple validation
is being performed. If it is a class or dictionary, list validation
will be performed. Classes are assumed to be subclasses of ProtocolBase,
while dictionaries are expected to be basic types ('string', 'number', ...).
addl_constraints is expected to be key-value pairs of any of the other
constraints permitted by JSON Schema v4.
"""
from python_jsonschema_objects import classbuilder
klassbuilder = addl_constraints.pop("classbuilder", None)
props = {}
if item_constraint is not None:
if isinstance(item_constraint, (tuple, list)):
for i, elem in enumerate(item_constraint):
isdict = isinstance(elem, (dict,))
isklass = isinstance( elem, type) and util.safe_issubclass(
elem, (classbuilder.ProtocolBase, classbuilder.LiteralValue))
if not any([isdict, isklass]):
raise TypeError(
"Item constraint (position {0}) is not a schema".format(i))
elif isinstance(item_constraint, classbuilder.TypeProxy):
pass
else:
isdict = isinstance(item_constraint, (dict,))
isklass = isinstance( item_constraint, type) and util.safe_issubclass(
item_constraint, (classbuilder.ProtocolBase, classbuilder.LiteralValue))
if not any([isdict, isklass]):
raise TypeError("Item constraint is not a schema")
if isdict and '$ref' in item_constraint:
if klassbuilder is None:
raise TypeError("Cannot resolve {0} without classbuilder"
.format(item_constraint['$ref']))
uri = item_constraint['$ref']
if uri in klassbuilder.resolved:
logger.debug(util.lazy_format(
"Using previously resolved object for {0}", uri))
else:
logger.debug(util.lazy_format("Resolving object for {0}", uri))
with klassbuilder.resolver.resolving(uri) as resolved:
# Set incase there is a circular reference in schema definition
klassbuilder.resolved[uri] = None
klassbuilder.resolved[uri] = klassbuilder.construct(
uri,
resolved,
(classbuilder.ProtocolBase,))
item_constraint = klassbuilder.resolved[uri]
elif isdict and item_constraint['type'] == 'array':
item_constraint = ArrayValidator.create(name + "#sub",
item_constraint=item_constraint[
'items'],
addl_constraints=item_constraint)
props['__itemtype__'] = item_constraint
props.update(addl_constraints)
validator = type(str(name), (ArrayValidator,), props)
return validator
def setprop(self, val):
if isinstance(info['type'], (list, tuple)):
ok = False
errors = []
type_checks = []
for typ in info['type']:
if not isinstance(typ, dict):
type_checks.append(typ)
continue
typ = next(t for n, t in validators.SCHEMA_TYPE_MAPPING
if typ['type'] == n)
if typ is None:
typ = type(None)
if isinstance(typ, (list, tuple)):
type_checks.extend(typ)
else:
type_checks.append(typ)
for typ in type_checks:
if isinstance(val, typ):
ok = True
break
elif hasattr(typ, 'isLiteralClass'):
try:
validator = typ(val)
except Exception as e:
errors.append("Failed to coerce to '{0}': {1}".format(
typ, e))
pass
else:
validator.validate()
ok = True
break
elif util.safe_issubclass(typ, ProtocolBase):
# force conversion- thus the val rather than validator assignment
try:
val = typ(**util.coerce_for_expansion(val))
except Exception as e:
errors.append("Failed to coerce to '{0}': {1}".format(
typ, e))
pass
else:
val.validate()
ok = True
break
elif util.safe_issubclass(
typ,
python_jsonschema_objects.wrapper_types.ArrayWrapper):
try:
val = typ(val)
except Exception as e:
errors.append("Failed to coerce to '{0}': {1}".format(
typ, e))
pass
else:
val.validate()
ok = True
break
if not ok:
errstr = "\n".join(errors)
raise validators.ValidationError(
"Object must be one of {0}: \n{1}".format(
info['type'], errstr))
elif info['type'] == 'array':
val = info['validator'](val)
val.validate()
elif util.safe_issubclass(
info['type'],
python_jsonschema_objects.wrapper_types.ArrayWrapper):
# An array type may have already been converted into an ArrayValidator
val = info['type'](val)
val.validate()
elif getattr(info['type'], 'isLiteralClass', False) is True:
if not isinstance(val, info['type']):
validator = info['type'](val)
validator.validate()
if validator._value is not None:
# This allows setting of default Literal values
val = validator
elif util.safe_issubclass(info['type'], ProtocolBase):
if not isinstance(val, info['type']):
val = info['type'](**util.coerce_for_expansion(val))
val.validate()
elif isinstance(info['type'], TypeProxy):
val = info['type'](val)
elif isinstance(info['type'], TypeRef):
if not isinstance(val, info['type'].ref_class):
val = info['type'](**val)
val.validate()
elif info['type'] is None:
# This is the null value
if val is not None:
raise validators.ValidationError(
"None is only valid value for null")
else:
raise TypeError("Unknown object type: '{0}'".format(info['type']))
self._properties[prop] = val
def create(name, item_constraint=None, **addl_constraints):
""" Create an array validator based on the passed in constraints.
If item_constraint is a tuple, it is assumed that tuple validation
is being performed. If it is a class or dictionary, list validation
will be performed. Classes are assumed to be subclasses of ProtocolBase,
while dictionaries are expected to be basic types ('string', 'number', ...).
addl_constraints is expected to be key-value pairs of any of the other
constraints permitted by JSON Schema v4.
"""
logger.debug(
fmt("Constructing ArrayValidator with {} and {}", item_constraint,
addl_constraints))
from python_jsonschema_objects import classbuilder
klassbuilder = addl_constraints.pop("classbuilder", None)
props = {}
if item_constraint is not None:
if isinstance(item_constraint, (tuple, list)):
for i, elem in enumerate(item_constraint):
isdict = isinstance(elem, (dict, ))
isklass = isinstance(elem, type) and util.safe_issubclass(
elem,
(classbuilder.ProtocolBase, classbuilder.LiteralValue))
if not any([isdict, isklass]):
raise TypeError(
"Item constraint (position {0}) is not a schema".
format(i))
elif isinstance(item_constraint,
(classbuilder.TypeProxy, classbuilder.TypeRef)):
pass
elif util.safe_issubclass(item_constraint, ArrayWrapper):
pass
else:
isdict = isinstance(item_constraint, (dict, ))
isklass = isinstance(
item_constraint, type) and util.safe_issubclass(
item_constraint,
(classbuilder.ProtocolBase, classbuilder.LiteralValue))
if not any([isdict, isklass]):
raise TypeError("Item constraint is not a schema")
if isdict and '$ref' in item_constraint:
if klassbuilder is None:
raise TypeError(
"Cannot resolve {0} without classbuilder".format(
item_constraint['$ref']))
uri = item_constraint['$ref']
if uri in klassbuilder.resolved:
logger.debug(
util.lazy_format(
"Using previously resolved object for {0}",
uri))
else:
logger.debug(
util.lazy_format("Resolving object for {0}", uri))
with klassbuilder.resolver.resolving(uri) as resolved:
# Set incase there is a circular reference in schema definition
klassbuilder.resolved[uri] = None
klassbuilder.resolved[
uri] = klassbuilder.construct(
uri, resolved,
(classbuilder.ProtocolBase, ))
item_constraint = klassbuilder.resolved[uri]
elif isdict and item_constraint.get('type') == 'array':
# We need to create a sub-array validator.
item_constraint = ArrayWrapper.create(
name + "#sub",
item_constraint=item_constraint['items'],
addl_constraints=item_constraint)
elif isdict and 'oneOf' in item_constraint:
# We need to create a TypeProxy validator
uri = "{0}_{1}".format(name, "<anonymous_list_type>")
type_array = []
for i, item_detail in enumerate(item_constraint['oneOf']):
if '$ref' in item_detail:
subtype = klassbuilder.construct(
util.resolve_ref_uri(
klassbuilder.resolver.resolution_scope,
item_detail['$ref']), item_detail)
else:
subtype = klassbuilder.construct(
uri + "_%s" % i, item_detail)
type_array.append(subtype)
item_constraint = classbuilder.TypeProxy(type_array)
elif isdict and item_constraint.get('type') == 'object':
""" We need to create a ProtocolBase object for this anonymous definition"""
uri = "{0}_{1}".format(name, "<anonymous_list_type>")
item_constraint = klassbuilder.construct(
uri, item_constraint)
props['__itemtype__'] = item_constraint
strict = addl_constraints.pop('strict', False)
props['_strict_'] = strict
props.update(addl_constraints)
validator = type(str(name), (ArrayWrapper, ), props)
return validator
def validate_items(self):
""" Validates the items in the backing array, including
performing type validation.
Sets the _typed property and clears the dirty flag as a side effect
Returns:
The typed array
"""
logger.debug(fmt("Validating {}", self))
from python_jsonschema_objects import classbuilder
if self.__itemtype__ is None:
return
type_checks = self.__itemtype__
if not isinstance(type_checks, (tuple, list)):
# we were given items = {'type': 'blah'} ; thus ensure the type for all data.
type_checks = [type_checks] * len(self.data)
elif len(type_checks) > len(self.data):
raise ValidationError(
"{1} does not have sufficient elements to validate against {0}"
.format(self.__itemtype__, self.data))
typed_elems = []
for elem, typ in zip(self.data, type_checks):
if isinstance(typ, dict):
for param, paramval in six.iteritems(typ):
validator = registry(param)
if validator is not None:
validator(paramval, elem, typ)
typed_elems.append(elem)
elif util.safe_issubclass(typ, classbuilder.LiteralValue):
val = typ(elem)
val.validate()
typed_elems.append(val)
elif util.safe_issubclass(typ, classbuilder.ProtocolBase):
if not isinstance(elem, typ):
try:
if isinstance(
elem,
(six.string_types, six.integer_types, float)):
val = typ(elem)
else:
val = typ(**util.coerce_for_expansion(elem))
except TypeError as e:
raise ValidationError(
"'{0}' is not a valid value for '{1}': {2}".format(
elem, typ, e))
else:
val = elem
val.validate()
typed_elems.append(val)
elif util.safe_issubclass(typ, ArrayWrapper):
val = typ(elem)
val.validate()
typed_elems.append(val)
elif isinstance(typ,
(classbuilder.TypeProxy, classbuilder.TypeRef)):
try:
if isinstance(
elem,
(six.string_types, six.integer_types, float)):
val = typ(elem)
else:
val = typ(**util.coerce_for_expansion(elem))
except TypeError as e:
raise ValidationError(
"'{0}' is not a valid value for '{1}': {2}".format(
elem, typ, e))
else:
val.validate()
typed_elems.append(val)
self._dirty = False
self._typed = typed_elems
return typed_elems
def create(name, item_constraint=None, **addl_constraints):
""" Create an array validator based on the passed in constraints.
If item_constraint is a tuple, it is assumed that tuple validation
is being performed. If it is a class or dictionary, list validation
will be performed. Classes are assumed to be subclasses of ProtocolBase,
while dictionaries are expected to be basic types ('string', 'number', ...).
addl_constraints is expected to be key-value pairs of any of the other
constraints permitted by JSON Schema v4.
"""
logger.debug(
fmt(
"Constructing ArrayValidator with {} and {}",
item_constraint,
addl_constraints,
)
)
from python_jsonschema_objects import classbuilder
klassbuilder = addl_constraints.pop(
"classbuilder", None
) # type: python_jsonschema_objects.classbuilder.ClassBuilder
props = {}
if item_constraint is not None:
if isinstance(item_constraint, (tuple, list)):
for i, elem in enumerate(item_constraint):
isdict = isinstance(elem, (dict,))
isklass = isinstance(elem, type) and util.safe_issubclass(
elem, (classbuilder.ProtocolBase, classbuilder.LiteralValue)
)
if not any([isdict, isklass]):
raise TypeError(
"Item constraint (position {0}) is not a schema".format(i)
)
elif isinstance(
item_constraint, (classbuilder.TypeProxy, classbuilder.TypeRef)
):
pass
elif util.safe_issubclass(item_constraint, ArrayWrapper):
pass
else:
isdict = isinstance(item_constraint, (dict,))
isklass = isinstance(item_constraint, type) and util.safe_issubclass(
item_constraint,
(classbuilder.ProtocolBase, classbuilder.LiteralValue),
)
if not any([isdict, isklass]):
raise TypeError("Item constraint is not a schema")
if isdict and "$ref" in item_constraint:
if klassbuilder is None:
raise TypeError(
"Cannot resolve {0} without classbuilder".format(
item_constraint["$ref"]
)
)
item_constraint = klassbuilder.resolve_type(
item_constraint["$ref"], name
)
elif isdict and item_constraint.get("type") == "array":
# We need to create a sub-array validator.
item_constraint = ArrayWrapper.create(
name + "#sub",
item_constraint=item_constraint["items"],
addl_constraints=item_constraint,
)
elif isdict and "oneOf" in item_constraint:
# We need to create a TypeProxy validator
uri = "{0}_{1}".format(name, "<anonymous_list_type>")
type_array = klassbuilder.construct_objects(
item_constraint["oneOf"], uri
)
item_constraint = classbuilder.TypeProxy(type_array)
elif isdict and item_constraint.get("type") == "object":
""" We need to create a ProtocolBase object for this anonymous definition"""
uri = "{0}_{1}".format(name, "<anonymous_list_type>")
item_constraint = klassbuilder.construct(uri, item_constraint)
props["__itemtype__"] = item_constraint
strict = addl_constraints.pop("strict", False)
props["_strict_"] = strict
props.update(addl_constraints)
validator = type(str(name), (ArrayWrapper,), props)
return validator
def create(name, item_constraint=None, **addl_constraints):
""" Create an array validator based on the passed in constraints.
If item_constraint is a tuple, it is assumed that tuple validation
is being performed. If it is a class or dictionary, list validation
will be performed. Classes are assumed to be subclasses of ProtocolBase,
while dictionaries are expected to be basic types ('string', 'number', ...).
addl_constraints is expected to be key-value pairs of any of the other
constraints permitted by JSON Schema v4.
"""
from python_jsonschema_objects import classbuilder
klassbuilder = addl_constraints.pop("classbuilder", None)
props = {}
if item_constraint is not None:
if isinstance(item_constraint, (tuple, list)):
for i, elem in enumerate(item_constraint):
isdict = isinstance(elem, (dict,))
isklass = isinstance( elem, type) and util.safe_issubclass(
elem, (classbuilder.ProtocolBase, classbuilder.LiteralValue))
if not any([isdict, isklass]):
raise TypeError(
"Item constraint (position {0}) is not a schema".format(i))
elif isinstance(item_constraint, classbuilder.TypeProxy):
pass
elif util.safe_issubclass(item_constraint, ArrayValidator):
pass
else:
isdict = isinstance(item_constraint, (dict,))
isklass = isinstance( item_constraint, type) and util.safe_issubclass(
item_constraint, (classbuilder.ProtocolBase, classbuilder.LiteralValue))
if not any([isdict, isklass]):
raise TypeError("Item constraint is not a schema")
if isdict and '$ref' in item_constraint:
if klassbuilder is None:
raise TypeError("Cannot resolve {0} without classbuilder"
.format(item_constraint['$ref']))
uri = item_constraint['$ref']
if uri in klassbuilder.resolved:
logger.debug(util.lazy_format(
"Using previously resolved object for {0}", uri))
else:
logger.debug(util.lazy_format("Resolving object for {0}", uri))
with klassbuilder.resolver.resolving(uri) as resolved:
# Set incase there is a circular reference in schema definition
klassbuilder.resolved[uri] = None
klassbuilder.resolved[uri] = klassbuilder.construct(
uri,
resolved,
(classbuilder.ProtocolBase,))
item_constraint = klassbuilder.resolved[uri]
elif isdict and item_constraint.get('type') == 'array':
# We need to create a sub-array validator.
item_constraint = ArrayValidator.create(name + "#sub",
item_constraint=item_constraint[
'items'],
addl_constraints=item_constraint)
elif isdict and 'oneOf' in item_constraint:
# We need to create a TypeProxy validator
uri = "{0}_{1}".format(name, "<anonymous_list_type>")
type_array = []
for i, item_detail in enumerate(item_constraint['oneOf']):
if '$ref' in item_detail:
subtype = klassbuilder.construct(
util.resolve_ref_uri(
klassbuilder.resolver.resolution_scope,
item_detail['$ref']),
item_detail)
else:
subtype = klassbuilder.construct(
uri + "_%s" % i, item_detail)
type_array.append(subtype)
item_constraint = classbuilder.TypeProxy(type_array)
props['__itemtype__'] = item_constraint
props.update(addl_constraints)
validator = type(str(name), (ArrayValidator,), props)
return validator
def setprop(self, val):
if isinstance(info['type'], (list, tuple)):
ok = False
errors = []
type_checks = []
for typ in info['type']:
if not isinstance(typ, dict):
type_checks.append(typ)
continue
typ = next(t
for n, t in validators.SCHEMA_TYPE_MAPPING
if typ['type'] == t)
if typ is None:
typ = type(None)
if isinstance(typ, (list, tuple)):
type_checks.extend(typ)
else:
type_checks.append(typ)
for typ in type_checks:
if isinstance(val, typ):
ok = True
break
elif hasattr(typ, 'isLiteralClass'):
try:
validator = typ(val)
except Exception as e:
errors.append(
"Failed to coerce to '{0}': {1}".format(typ, e))
pass
else:
validator.validate()
ok = True
break
elif util.safe_issubclass(typ, ProtocolBase):
# force conversion- thus the val rather than validator assignment
try:
val = typ(**util.coerce_for_expansion(val))
except Exception as e:
errors.append(
"Failed to coerce to '{0}': {1}".format(typ, e))
pass
else:
val.validate()
ok = True
break
elif util.safe_issubclass(typ, validators.ArrayValidator):
try:
val = typ(val)
except Exception as e:
errors.append(
"Failed to coerce to '{0}': {1}".format(typ, e))
pass
else:
val.validate()
ok = True
break
if not ok:
errstr = "\n".join(errors)
raise validators.ValidationError(
"Object must be one of {0}: \n{1}".format(info['type'], errstr))
elif info['type'] == 'array':
instance = info['validator'](val)
val = instance.validate()
elif util.safe_issubclass(info['type'], validators.ArrayValidator):
# An array type may have already been converted into an ArrayValidator
instance = info['type'](val)
val = instance.validate()
elif getattr(info['type'], 'isLiteralClass', False) is True:
if not isinstance(val, info['type']):
validator = info['type'](val)
validator.validate()
elif util.safe_issubclass(info['type'], ProtocolBase):
if not isinstance(val, info['type']):
val = info['type'](**util.coerce_for_expansion(val))
val.validate()
elif isinstance(info['type'], TypeProxy):
val = info['type'](val)
elif info['type'] is None:
# This is the null value
if val is not None:
raise validators.ValidationError(
"None is only valid value for null")
else:
raise TypeError("Unknown object type: '{0}'".format(info['type']))
self._properties[prop] = val
def _construct(self, uri, clsdata, parent=(ProtocolBase, )):
if 'oneOf' in clsdata:
potential_parents = self.resolve_classes(clsdata['oneOf'])
for p in potential_parents:
if util.safe_issubclass(p, ProtocolBase):
self.resolved[uri] = self._build_object(
uri, clsdata, (p, ))
else:
raise Exception("Don't know how to deal with this")
return self.resolved[uri]
elif 'anyOf' in clsdata:
raise NotImplementedError(
"anyOf is not supported as bare property")
elif 'allOf' in clsdata:
potential_parents = self.resolve_classes(clsdata['allOf'])
parents = []
for p in potential_parents:
if isinstance(p, dict):
# This is additional constraints
clsdata.update(p)
elif util.safe_issubclass(p, ProtocolBase):
parents.append(p)
self.resolved[uri] = self._build_object(uri, clsdata, parents)
return self.resolved[uri]
elif '$ref' in clsdata:
if 'type' in clsdata and util.safe_issubclass(
clsdata['type'], (ProtocolBase, LiteralValue)):
# It's possible that this reference was already resolved, in which
# case it will have its type parameter set
logging.debug(
"Using previously resolved type "
"(with different URI) for %s", uri)
self.resolved[uri] = clsdata['type']
elif uri in self.resolved:
logging.debug("Using previously resolved object for %s", uri)
else:
logging.debug("Resolving object for %s", uri)
with self.resolver.resolving(uri) as resolved:
self.resolved[
uri] = None # Set incase there is a circular reference in schema definition
self.resolved[uri] = self._build_object(
uri, resolved, parent)
return self.resolved[uri]
elif clsdata.get('type') == 'array' and 'items' in clsdata:
self.resolved[uri] = self._build_object(uri, clsdata, parent)
elif (clsdata.get('type', None) == 'object'
or clsdata.get('properties', None) is not None
or clsdata.get('additionalProperties', False)):
self.resolved[uri] = self._build_object(uri, clsdata, parent)
return self.resolved[uri]
elif clsdata.get('type') in ('integer', 'number', 'string', 'boolean',
'null'):
self.resolved[uri] = self._build_literal(uri, clsdata)
return self.resolved[uri]
elif 'enum' in clsdata:
obj = self._build_literal(uri, clsdata)
self.resolved[uri] = obj
return obj
elif 'type' in clsdata and util.safe_issubclass(
clsdata['type'], ProtocolBase):
self.resolved[uri] = clsdata.get('type')
return self.resolved[uri]
else:
raise NotImplementedError(
"Unable to parse schema object '{0}' with "
"no type and no reference".format(clsdata))
