private void validate(ValidationState state, Schema schema, IJson instance, string parentTag = null)
{
if (schema.Nullable == true && instance.IsNull())
{
return;
}
switch (schema.Form())
{
case Form.Ref:
state.SchemaTokens.Add(new List <string>()
{
"definitions", schema.Ref
});
if (state.SchemaTokens.Count == MaxDepth)
{
throw new MaxDepthExceededException();
}
validate(state, state.Root.Definitions[schema.Ref], instance);
state.SchemaTokens.RemoveAt(state.SchemaTokens.Count - 1);
break;
case Form.Type:
state.PushSchemaToken("type");
switch (schema.Type)
{
case Type.Boolean:
if (!instance.IsBoolean())
{
state.PushError();
}
break;
case Type.Float32:
case Type.Float64:
if (!instance.IsNumber())
{
state.PushError();
}
break;
case Type.Int8:
validateInt(state, instance, -128, 127);
break;
case Type.Uint8:
validateInt(state, instance, 0, 255);
break;
case Type.Int16:
validateInt(state, instance, -32768, 32767);
break;
case Type.Uint16:
validateInt(state, instance, 0, 65535);
break;
case Type.Int32:
validateInt(state, instance, -2147483648, 2147483647);
break;
case Type.Uint32:
validateInt(state, instance, 0, 4294967295L);
break;
case Type.String:
if (!instance.IsString())
{
state.PushError();
}
break;
case Type.Timestamp:
if (instance.IsString())
{
try {
DateTime.ParseExact(
instance.AsString(),
"yyyy-MM-dd'T'HH:mm:ss.FFFFFFFK",
CultureInfo.InvariantCulture
);
}
catch (FormatException)
{
state.PushError();
}
}
else
{
state.PushError();
}
break;
}
state.PopSchemaToken();
break;
case Form.Enum:
state.PushSchemaToken("enum");
if (!instance.IsString() || !schema.Enum.Contains(instance.AsString()))
{
state.PushError();
}
state.PopSchemaToken();
break;
case Form.Elements:
state.PushSchemaToken("elements");
if (instance.IsArray())
{
IList <IJson> list = instance.AsArray();
for (int i = 0; i < list.Count; i++)
{
state.PushInstanceToken(i.ToString());
validate(state, schema.Elements, list[i]);
state.PopInstanceToken();
}
}
else
{
state.PushError();
}
state.PopSchemaToken();
break;
case Form.Properties:
if (!instance.IsObject())
{
if (schema.Properties != null)
{
state.PushSchemaToken("properties");
}
else
{
state.PushSchemaToken("optionalProperties");
}
state.PushError();
state.PopSchemaToken();
return;
}
IDictionary <string, IJson> obj = instance.AsObject();
if (schema.Properties != null)
{
state.PushSchemaToken("properties");
foreach (var entry in schema.Properties)
{
state.PushSchemaToken(entry.Key);
if (obj.ContainsKey(entry.Key))
{
state.PushInstanceToken(entry.Key);
validate(state, entry.Value, obj[entry.Key]);
state.PopInstanceToken();
}
else
{
state.PushError();
}
state.PopSchemaToken();
}
state.PopSchemaToken();
}
if (schema.OptionalProperties != null)
{
state.PushSchemaToken("optionalProperties");
foreach (var entry in schema.OptionalProperties)
{
state.PushSchemaToken(entry.Key);
if (obj.ContainsKey(entry.Key))
{
state.PushInstanceToken(entry.Key);
validate(state, entry.Value, obj[entry.Key]);
state.PopInstanceToken();
}
state.PopSchemaToken();
}
state.PopSchemaToken();
}
if (schema.AdditionalProperties != true)
{
foreach (string key in obj.Keys)
{
if (schema.Properties != null && schema.Properties.ContainsKey(key))
{
continue;
}
if (schema.OptionalProperties != null && schema.OptionalProperties.ContainsKey(key))
{
continue;
}
if (key == parentTag)
{
continue;
}
state.PushInstanceToken(key);
state.PushError();
state.PopInstanceToken();
}
}
break;
case Form.Values:
state.PushSchemaToken("values");
if (instance.IsObject())
{
foreach (var entry in instance.AsObject())
{
state.PushInstanceToken(entry.Key);
validate(state, schema.Values, entry.Value);
state.PopInstanceToken();
}
}
else
{
state.PushError();
}
state.PopSchemaToken();
break;
case Form.Discriminator:
if (!instance.IsObject())
{
state.PushSchemaToken("discriminator");
state.PushError();
state.PopSchemaToken();
break;
}
obj = instance.AsObject();
if (!obj.ContainsKey(schema.Discriminator))
{
state.PushSchemaToken("discriminator");
state.PushError();
state.PopSchemaToken();
break;
}
if (!obj[schema.Discriminator].IsString())
{
state.PushSchemaToken("discriminator");
state.PushInstanceToken(schema.Discriminator);
state.PushError();
state.PopInstanceToken();
state.PopSchemaToken();
break;
}
if (!schema.Mapping.ContainsKey(obj[schema.Discriminator].AsString()))
{
state.PushSchemaToken("mapping");
state.PushInstanceToken(schema.Discriminator);
state.PushError();
state.PopInstanceToken();
state.PopSchemaToken();
break;
}
state.PushSchemaToken("mapping");
state.PushSchemaToken(obj[schema.Discriminator].AsString());
validate(
state,
schema.Mapping[obj[schema.Discriminator].AsString()],
instance,
schema.Discriminator
);
state.PopSchemaToken();
state.PopSchemaToken();
break;
}
}