MCP Toolbox for Databases

// Copyright 2025 Google LLC // // 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 orderedmap import ( "bytes" "encoding/json" ) // Column represents a single column in a row. type Column struct { Name string Value any } // Row represents a row of data with columns in a specific order. type Row struct { Columns []Column } // Add adds a new column to the row. func (r *Row) Add(name string, value any) { r.Columns = append(r.Columns, Column{Name: name, Value: value}) } // MarshalJSON implements the json.Marshaler interface for the Row struct. // It marshals the row into a JSON object, preserving the order of the columns. func (r Row) MarshalJSON() ([]byte, error) { var buf bytes.Buffer buf.WriteString("{") for i, col := range r.Columns { if i > 0 { buf.WriteString(",") } // Marshal the key key, err := json.Marshal(col.Name) if err != nil { return nil, err } buf.Write(key) buf.WriteString(":") // Marshal the value val, err := json.Marshal(col.Value) if err != nil { return nil, err } buf.Write(val) } buf.WriteString("}") return buf.Bytes(), nil }