Store additional information in the schema (name and deref) and also store schema in errors. This gives us the ability to provide additional context when an error occurs, for example if the schema is named then the name of the schema, or if the yaml is parsed with ruamel.yaml we can show the line and column number that generated the error.

Author: danielbradburn

openapi_core/schema/schemas/exceptions.py

@@ -3,8 +3,9 @@
 import attr
 
 
+@attr.s
 class OpenAPISchemaError(OpenAPIMappingError):
-    pass
+    schema = attr.ib()
 
 
 @attr.s
@@ -77,3 +78,19 @@ class MultipleOneOfSchema(OpenAPISchemaError):
 
     def __str__(self):
         return "Exactly one schema type {0} should be valid, more than one found".format(self.type)
+
+
+@attr.s
+class InvalidSchema(OpenAPISchemaError):
+    msg = attr.ib()
+
+    def __str__(self):
+        return self.msg
+
+
+@attr.s
+class InvalidFormat(OpenAPISchemaError):
+    msg = attr.ib()
+
+    def __str__(self):
+        return self.msg

openapi_core/schema/schemas/factories.py

@@ -13,7 +13,7 @@ class SchemaFactory(object):
     def __init__(self, dereferencer):
         self.dereferencer = dereferencer
 
-    def create(self, schema_spec):
+    def create(self, schema_spec, schema_name=''):
         schema_deref = self.dereferencer.dereference(schema_spec)
 
         schema_type = schema_deref.get('type', None)
@@ -75,6 +75,7 @@ def create(self, schema_spec):
             exclusive_maximum=exclusive_maximum,
             exclusive_minimum=exclusive_minimum,
             min_properties=min_properties, max_properties=max_properties,
+            schema_name=schema_name, schema_deref=schema_deref,
         )
 
     @property

openapi_core/schema/schemas/generators.py

@@ -16,5 +16,5 @@ def generate(self, schemas_spec):
         schemas_deref = self.dereferencer.dereference(schemas_spec)
 
         for schema_name, schema_spec in iteritems(schemas_deref):
-            schema, _ = self.schemas_registry.get_or_create(schema_spec)
+            schema, _ = self.schemas_registry.get_or_create(schema_spec, schema_name)
             yield schema_name, schema