// Copyright 2022-2023 EMQ Technologies Co., Ltd. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. package schema import ( "fmt" "strings" "github.com/lf-edge/ekuiper/internal/conf" "github.com/lf-edge/ekuiper/pkg/ast" ) type inferer func(schemaFileName string, SchemaMessageName string) (ast.StreamFields, error) // init once and read only var inferes = map[string]inferer{} func InferFromSchemaFile(schemaType string, schemaId string) (ast.StreamFields, error) { if c, ok := inferes[schemaType]; ok { r := strings.Split(schemaId, ".") if len(r) != 2 { return nil, fmt.Errorf("invalid schemaId: %s", schemaId) } // mock result for testing if conf.IsTesting { return ast.StreamFields{ { Name: "field1", FieldType: &ast.BasicType{ Type: ast.BIGINT, }, }, { Name: "field2", FieldType: &ast.BasicType{ Type: ast.STRINGS, }, }, }, nil } return c(r[0], r[1]) } else { return nil, nil } }