mirror of
https://github.com/googleapis/genai-toolbox.git
synced 2026-01-14 09:57:58 -05:00
1c9ad5ea24
This commit refactors the source configuration and loading mechanism to use a dynamic registration pattern. Each source package now registers itself with a central registry via its init() function. The server configuration code uses this registry to decode and initialize sources, decoupling it from specific source implementations and simplifying the addition of new sources. Key changes: - Introduced `sources.Register()` and `newConfig()` constructor in each source package. - Moved source package imports to `cmd/root.go` as blank imports to trigger `init()` functions for self-registration. - Removed direct imports of specific source packages from `internal/server/config.go`. - Renamed `SourceKind` constants to `Kind` within each source package. - Updated tests to use the new `Kind` constants and reflect registration changes. --------- Co-authored-by: Yuan Teoh <yuanteoh@google.com>
109 lines
2.7 KiB
Go
109 lines
2.7 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 sqlite
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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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"github.com/goccy/go-yaml"
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"github.com/googleapis/genai-toolbox/internal/sources"
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"go.opentelemetry.io/otel/trace"
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_ "modernc.org/sqlite" // Pure Go SQLite driver
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)
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const SourceKind string = "sqlite"
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// validate interface
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var _ sources.SourceConfig = Config{}
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func init() {
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if !sources.Register(SourceKind, newConfig) {
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panic(fmt.Sprintf("source kind %q already registered", SourceKind))
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}
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}
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func newConfig(ctx context.Context, name string, decoder *yaml.Decoder) (sources.SourceConfig, error) {
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actual := Config{Name: name}
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if err := decoder.DecodeContext(ctx, &actual); err != nil {
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return nil, err
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}
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return actual, nil
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}
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type Config struct {
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Name string `yaml:"name" validate:"required"`
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Kind string `yaml:"kind" validate:"required"`
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Database string `yaml:"database" validate:"required"` // Path to SQLite database file
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}
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func (r Config) SourceConfigKind() string {
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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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db, err := initSQLiteConnection(ctx, tracer, r.Name, 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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err = db.PingContext(context.Background())
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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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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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return SourceKind
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}
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func (s *Source) SQLiteDB() *sql.DB {
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return s.Db
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}
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func initSQLiteConnection(ctx context.Context, tracer trace.Tracer, name, dbPath 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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// Open database connection
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db, err := sql.Open("sqlite", dbPath)
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if err != nil {
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return nil, fmt.Errorf("sql.Open: %w", err)
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}
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// Set some reasonable defaults for SQLite
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db.SetMaxOpenConns(1) // SQLite only supports one writer at a time
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db.SetMaxIdleConns(1)
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return db, nil
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}
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