Files
tasks/common/persistence/cassandra/schema_version_reader.go
Alex ShtinandGitHub 8e8f1b0f7c Remove license header from every file (#7689)
## What changed?
<!-- Describe what has changed in this PR -->
Remove license header from every file. Because it is really hard to
follow in this PR here is the summary:
1. License header is removed from all `.go` and `.proto` files
:fireworks::fireworks:🎆.
2. `LICENSE` file in the root directory has only Temporal and Uber
copyrights.
3. 5 other `LICENSE` files added to the packages which have copyrights
different from Temporal and Uber: Datadog, Xargin, "Mat Ryer, Tyler
Bunnell and contributors".
4. `license_file` flag is removed from all code generation tools.
5. `copyright_file` flag is removed from `go:generate mockgen`
directive.
6. All copyright related targets are removed from `Makefile`.
7. Updated Temporal copyright year to 2025 everywhere.

## Why?
<!-- Tell your future self why have you made these changes -->
I double checked with legal department that it is not needed to have
license header in every file. One file per repo is enough. I put all
copyrights to the root `LICENSE` file and removed header from all other
files. Also updated tools and `Makefile`.
2025-05-01 18:50:21 -07:00

42 lines
963 B
Go

package cassandra
import (
"fmt"
"go.temporal.io/server/common/persistence/nosql/nosqlplugin/cassandra/gocql"
)
const (
readSchemaVersionCQL = `SELECT curr_version from schema_version where keyspace_name=?`
)
type (
SchemaVersionReader struct {
session gocql.Session
}
)
func NewSchemaVersionReader(session gocql.Session) *SchemaVersionReader {
return &SchemaVersionReader{
session: session,
}
}
// ReadSchemaVersion returns the current schema version for the Keyspace
func (svr *SchemaVersionReader) ReadSchemaVersion(keyspace string) (string, error) {
query := svr.session.Query(readSchemaVersionCQL, keyspace)
iter := query.Iter()
var version string
success := iter.Scan(&version)
err := iter.Close()
if err == nil && !success {
err = fmt.Errorf("no schema version found for keyspace %q", keyspace)
}
if err != nil {
return "", fmt.Errorf("unable to get current schema version from Cassandra: %w", err)
}
return version, nil
}