forked from vitessio/vitess
/
keyspace.go
60 lines (49 loc) · 1.54 KB
/
keyspace.go
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package topovalidator
import (
"fmt"
"golang.org/x/net/context"
"github.com/youtube/vitess/go/vt/topo"
topodatapb "github.com/youtube/vitess/go/vt/proto/topodata"
)
// This file contains the Keyspace validator. It uses GetKeyspaces to
// find all the keyspaces, and tries to read them. If any error occurs
// during the reading, it adds a fixer to either Delete or Create the
// keyspace.
// RegisterKeyspaceValidator registers the Keyspace Validator.
func RegisterKeyspaceValidator() {
RegisterValidator("Keyspace Validator", &KeyspaceValidator{})
}
// KeyspaceValidator implements Validator.
type KeyspaceValidator struct{}
// Audit is part of the Validator interface.
func (kv *KeyspaceValidator) Audit(ctx context.Context, ts topo.Server, w *Workflow) error {
keyspaces, err := ts.GetKeyspaces(ctx)
if err != nil {
return err
}
for _, keyspace := range keyspaces {
_, err := ts.GetKeyspace(ctx, keyspace)
if err != nil {
w.AddFixer(keyspace, fmt.Sprintf("Error: %v", err), &KeyspaceFixer{
ts: ts,
keyspace: keyspace,
}, []string{"Create", "Delete"})
}
}
return nil
}
// KeyspaceFixer implements Fixer.
type KeyspaceFixer struct {
ts topo.Server
keyspace string
}
// Action is part of the Fixer interface.
func (kf *KeyspaceFixer) Action(ctx context.Context, name string) error {
if name == "Create" {
return kf.ts.CreateKeyspace(ctx, kf.keyspace, &topodatapb.Keyspace{})
}
if name == "Delete" {
return kf.ts.DeleteKeyspace(ctx, kf.keyspace)
}
return fmt.Errorf("unknown KeyspaceFixer action: %v", name)
}