dataplex.go•3.28 kB
// 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 dataplex
import (
"context"
"fmt"
dataplexapi "cloud.google.com/go/dataplex/apiv1"
"github.com/goccy/go-yaml"
"github.com/googleapis/genai-toolbox/internal/sources"
"github.com/googleapis/genai-toolbox/internal/util"
"go.opentelemetry.io/otel/trace"
"golang.org/x/oauth2/google"
"google.golang.org/api/option"
)
const SourceKind string = "dataplex"
// validate interface
var _ sources.SourceConfig = Config{}
func init() {
if !sources.Register(SourceKind, newConfig) {
panic(fmt.Sprintf("source kind %q already registered", SourceKind))
}
}
func newConfig(ctx context.Context, name string, decoder *yaml.Decoder) (sources.SourceConfig, error) {
actual := Config{Name: name}
if err := decoder.DecodeContext(ctx, &actual); err != nil {
return nil, err
}
return actual, nil
}
type Config struct {
// Dataplex configs
Name string `yaml:"name" validate:"required"`
Kind string `yaml:"kind" validate:"required"`
Project string `yaml:"project" validate:"required"`
}
func (r Config) SourceConfigKind() string {
// Returns Dataplex source kind
return SourceKind
}
func (r Config) Initialize(ctx context.Context, tracer trace.Tracer) (sources.Source, error) {
// Initializes a Dataplex source
client, err := initDataplexConnection(ctx, tracer, r.Name, r.Project)
if err != nil {
return nil, err
}
s := &Source{
Name: r.Name,
Kind: SourceKind,
Client: client,
Project: r.Project,
}
return s, nil
}
var _ sources.Source = &Source{}
type Source struct {
// Source struct with Dataplex client
Name string `yaml:"name"`
Kind string `yaml:"kind"`
Client *dataplexapi.CatalogClient
Project string `yaml:"project"`
Location string `yaml:"location"`
}
func (s *Source) SourceKind() string {
// Returns Dataplex source kind
return SourceKind
}
func (s *Source) ProjectID() string {
return s.Project
}
func (s *Source) CatalogClient() *dataplexapi.CatalogClient {
return s.Client
}
func initDataplexConnection(
ctx context.Context,
tracer trace.Tracer,
name string,
project string,
) (*dataplexapi.CatalogClient, error) {
ctx, span := sources.InitConnectionSpan(ctx, tracer, SourceKind, name)
defer span.End()
cred, err := google.FindDefaultCredentials(ctx)
if err != nil {
return nil, fmt.Errorf("failed to find default Google Cloud credentials: %w", err)
}
userAgent, err := util.UserAgentFromContext(ctx)
if err != nil {
return nil, err
}
client, err := dataplexapi.NewCatalogClient(ctx, option.WithUserAgent(userAgent), option.WithCredentials(cred))
if err != nil {
return nil, fmt.Errorf("failed to create Dataplex client for project %q: %w", project, err)
}
return client, nil
}