private static IJsonSchema _FromJson(JsonValue json, SchemaFactory schemaFactory, Uri documentPath = null)
{
if (json == null)
{
return(null);
}
IJsonSchema schema = null;
switch (json.Type)
{
case JsonValueType.Object:
var schemaDeclaration = json.Object.TryGetString("$schema");
var factory = _schemaFactories.FirstOrDefault(f => f.Id == schemaDeclaration);
if (factory != null)
{
var id = json.Object.TryGetString(factory.IdKey);
if (id == factory.MetaSchema.Id)
{
return(factory.MetaSchema);
}
schema = factory.Factory();
}
schema = schema ?? schemaFactory.Factory();
if (json.Object.ContainsKey("$ref"))
{
schema = json.Object.Count > 1
? new JsonSchemaReference(schema.GetType())
{
Base = schema
}
}
: new JsonSchemaReference(schema.GetType());
break;
case JsonValueType.Array:
schema = new JsonSchemaCollection();
break;
case JsonValueType.Boolean:
// not determining draft here is fine
// True is intended to pass all instances
// False is intended to fail all instances
schema = new JsonSchema06();
break;
default:
throw new SchemaLoadException($"JSON Schema must be objects; actual type: {json.Type}");
}
schema.DocumentPath = documentPath;
schema.FromJson(json, null);
return(schema);
}
internal static IJsonSchema FromJson(JsonValue json, Func <IJsonSchema> schemaFactory, Uri documentPath = null)
{
if (json == null)
{
return(null);
}
IJsonSchema schema = null;
switch (json.Type)
{
case JsonValueType.Object:
var schemaDeclaration = json.Object.TryGetString("$schema");
if (schemaDeclaration == JsonSchema04.MetaSchema.Id)
{
var id = json.Object.TryGetString("id");
if (id == JsonSchema04.MetaSchema.Id)
{
return(JsonSchema04.MetaSchema);
}
schema = new JsonSchema04();
}
else if (schemaDeclaration == JsonSchema06.MetaSchema.Id)
{
var id = json.Object.TryGetString("$id");
if (id == JsonSchema06.MetaSchema.Id)
{
return(JsonSchema06.MetaSchema);
}
schema = new JsonSchema06();
}
else if (schemaDeclaration == JsonSchema07.MetaSchema.Id)
{
var id = json.Object.TryGetString("$id");
if (id == JsonSchema07.MetaSchema.Id)
{
return(JsonSchema07.MetaSchema);
}
schema = new JsonSchema07();
}
schema = schema ?? schemaFactory();
if (json.Object.ContainsKey("$ref"))
{
schema = json.Object.Count > 1
? new JsonSchemaReference(schema.GetType())
{
Base = schema
}
}
: new JsonSchemaReference(schema.GetType());
break;
case JsonValueType.Array:
schema = new JsonSchemaCollection();
break;
case JsonValueType.Boolean:
schema = new JsonSchema06();
break;
default:
throw new SchemaLoadException($"JSON Schema must be objects; actual type: {json.Type}");
}
schema.DocumentPath = documentPath;
schema.FromJson(json, null);
return(schema);
}
