mirror of
https://github.com/googleapis/genai-toolbox.git
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2b6bb99daa
User agent will be set as "genai-toolbox/" + versionString. Instead of a panic, Toolbox will throw an error if the source fail to retrieve `user agent`. This will also be consistent with setting and getting logger from context.
129 lines
3.7 KiB
Go
129 lines
3.7 KiB
Go
// Copyright 2025 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cloudsqlmssql
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import (
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"context"
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"database/sql"
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"fmt"
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"slices"
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"cloud.google.com/go/cloudsqlconn/sqlserver/mssql"
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"github.com/googleapis/genai-toolbox/internal/sources"
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"github.com/googleapis/genai-toolbox/internal/util"
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"go.opentelemetry.io/otel/trace"
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)
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const SourceKind string = "cloud-sql-mssql"
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// validate interface
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var _ sources.SourceConfig = Config{}
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type Config struct {
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// Cloud SQL MSSQL configs
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Name string `yaml:"name" validate:"required"`
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Kind string `yaml:"kind" validate:"required"`
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Project string `yaml:"project" validate:"required"`
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Region string `yaml:"region" validate:"required"`
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Instance string `yaml:"instance" validate:"required"`
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IPAddress string `yaml:"ipAddress" validate:"required"`
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IPType sources.IPType `yaml:"ipType" validate:"required"`
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User string `yaml:"user" validate:"required"`
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Password string `yaml:"password" validate:"required"`
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Database string `yaml:"database" validate:"required"`
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}
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func (r Config) SourceConfigKind() string {
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// Returns Cloud SQL MSSQL source kind
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return SourceKind
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}
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func (r Config) Initialize(ctx context.Context, tracer trace.Tracer) (sources.Source, error) {
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// Initializes a Cloud SQL MSSQL source
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db, err := initCloudSQLMssqlConnection(ctx, tracer, r.Name, r.Project, r.Region, r.Instance, r.IPAddress, r.IPType.String(), r.User, r.Password, r.Database)
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if err != nil {
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return nil, fmt.Errorf("unable to create db connection: %w", err)
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}
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// Verify db connection
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err = db.Ping()
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if err != nil {
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return nil, fmt.Errorf("unable to connect successfully: %w", err)
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}
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s := &Source{
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Name: r.Name,
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Kind: SourceKind,
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Db: db,
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}
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return s, nil
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}
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var _ sources.Source = &Source{}
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type Source struct {
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// Cloud SQL MSSQL struct with connection pool
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Name string `yaml:"name"`
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Kind string `yaml:"kind"`
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Db *sql.DB
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}
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func (s *Source) SourceKind() string {
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// Returns Cloud SQL MSSQL source kind
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return SourceKind
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}
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func (s *Source) MSSQLDB() *sql.DB {
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// Returns a Cloud SQL MSSQL database connection pool
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return s.Db
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}
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func initCloudSQLMssqlConnection(ctx context.Context, tracer trace.Tracer, name, project, region, instance, ipAddress, ipType, user, pass, dbname string) (*sql.DB, error) {
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//nolint:all // Reassigned ctx
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ctx, span := sources.InitConnectionSpan(ctx, tracer, SourceKind, name)
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defer span.End()
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// Create dsn
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dsn := fmt.Sprintf("sqlserver://%s:%s@%s?database=%s&cloudsql=%s:%s:%s", user, pass, ipAddress, dbname, project, region, instance)
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// Get dial options
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userAgent, err := util.UserAgentFromContext(ctx)
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if err != nil {
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return nil, err
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}
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opts, err := sources.GetCloudSQLOpts(ipType, userAgent)
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if err != nil {
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return nil, err
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}
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// Register sql server driver
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if !slices.Contains(sql.Drivers(), "cloudsql-sqlserver-driver") {
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_, err := mssql.RegisterDriver("cloudsql-sqlserver-driver", opts...)
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if err != nil {
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return nil, err
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}
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}
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// Open database connection
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db, err := sql.Open(
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"cloudsql-sqlserver-driver",
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dsn,
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)
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if err != nil {
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return nil, err
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}
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return db, nil
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}
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