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snowflake.go
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snowflake.go
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package snowflake
import (
"context"
"errors"
"github.com/rilldata/rill/runtime/drivers"
"github.com/rilldata/rill/runtime/pkg/activity"
"go.uber.org/zap"
)
func init() {
drivers.Register("snowflake", driver{})
drivers.RegisterAsConnector("snowflake", driver{})
}
var spec = drivers.Spec{
DisplayName: "Snowflake",
Description: "Connect to Snowflake.",
ConfigProperties: []*drivers.PropertySpec{
{
Key: "dsn",
Type: drivers.StringPropertyType,
Secret: true,
},
},
SourceProperties: []*drivers.PropertySpec{
{
Key: "sql",
Type: drivers.StringPropertyType,
Required: true,
DisplayName: "SQL",
Description: "Query to extract data from Snowflake.",
Placeholder: "select * from table",
},
{
Key: "dsn",
Type: drivers.StringPropertyType,
DisplayName: "Snowflake Connection String",
Required: false,
DocsURL: "https://pkg.go.dev/github.com/snowflakedb/gosnowflake#hdr-Connection_String",
Placeholder: "my_user_name:my_password@ac123456/my_database/my_schema?warehouse=my_warehouse&role=my_user_role",
Hint: "Either set this or pass --var connector.snowflake.dsn=... to rill start",
},
},
ImplementsSQLStore: true,
}
type driver struct{}
func (d driver) Open(instanceID string, config map[string]any, client *activity.Client, logger *zap.Logger) (drivers.Handle, error) {
if instanceID == "" {
return nil, errors.New("snowflake driver can't be shared")
}
// actual db connection is opened during query
return &connection{
config: config,
logger: logger,
}, nil
}
func (d driver) Spec() drivers.Spec {
return spec
}
func (d driver) HasAnonymousSourceAccess(ctx context.Context, src map[string]any, logger *zap.Logger) (bool, error) {
return false, nil
}
func (d driver) TertiarySourceConnectors(ctx context.Context, src map[string]any, logger *zap.Logger) ([]string, error) {
return nil, nil
}
type connection struct {
config map[string]any
logger *zap.Logger
}
// Migrate implements drivers.Connection.
func (c *connection) Migrate(ctx context.Context) (err error) {
return nil
}
// MigrationStatus implements drivers.Handle.
func (c *connection) MigrationStatus(ctx context.Context) (current, desired int, err error) {
return 0, 0, nil
}
// Driver implements drivers.Connection.
func (c *connection) Driver() string {
return "snowflake"
}
// Config implements drivers.Connection.
func (c *connection) Config() map[string]any {
return c.config
}
// Close implements drivers.Connection.
func (c *connection) Close() error {
return nil
}
// AsRegistry implements drivers.Connection.
func (c *connection) AsRegistry() (drivers.RegistryStore, bool) {
return nil, false
}
// AsCatalogStore implements drivers.Connection.
func (c *connection) AsCatalogStore(instanceID string) (drivers.CatalogStore, bool) {
return nil, false
}
// AsRepoStore implements drivers.Connection.
func (c *connection) AsRepoStore(instanceID string) (drivers.RepoStore, bool) {
return nil, false
}
// AsAdmin implements drivers.Handle.
func (c *connection) AsAdmin(instanceID string) (drivers.AdminService, bool) {
return nil, false
}
// AsAI implements drivers.Handle.
func (c *connection) AsAI(instanceID string) (drivers.AIService, bool) {
return nil, false
}
// AsOLAP implements drivers.Connection.
func (c *connection) AsOLAP(instanceID string) (drivers.OLAPStore, bool) {
return nil, false
}
// AsObjectStore implements drivers.Connection.
func (c *connection) AsObjectStore() (drivers.ObjectStore, bool) {
return nil, false
}
// AsModelExecutor implements drivers.Handle.
func (c *connection) AsModelExecutor(instanceID string, opts *drivers.ModelExecutorOptions) (drivers.ModelExecutor, bool) {
return nil, false
}
// AsModelManager implements drivers.Handle.
func (c *connection) AsModelManager(instanceID string) (drivers.ModelManager, bool) {
return nil, false
}
// AsTransporter implements drivers.Connection.
func (c *connection) AsTransporter(from, to drivers.Handle) (drivers.Transporter, bool) {
return nil, false
}
// AsFileStore implements drivers.Connection.
func (c *connection) AsFileStore() (drivers.FileStore, bool) {
return nil, false
}
// AsSQLStore implements drivers.Connection.
func (c *connection) AsSQLStore() (drivers.SQLStore, bool) {
return c, true
}
// AsNotifier implements drivers.Connection.
func (c *connection) AsNotifier(properties map[string]any) (drivers.Notifier, error) {
return nil, drivers.ErrNotNotifier
}