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journal: add StoreAttribute/FetchAttribute

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Signed-off-by: Niels de Vos <ndevos@redhat.com>
This commit is contained in:
Niels de Vos 2022-03-22 10:48:02 +01:00 committed by mergify[bot]
parent 010fd816dd
commit 3b4d193ca8
1 changed files with 30 additions and 0 deletions
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30
internal/journal/voljournal.go
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@ -742,6 +742,36 @@ func (conn *Connection) StoreImageID(ctx context.Context, pool, reservedUUID, im
return nil
}
// StoreAttribute stores an attribute (key/value) in omap.
func (conn *Connection) StoreAttribute(ctx context.Context, pool, reservedUUID, attribute, value string) error {
key := conn.config.commonPrefix + attribute
err := setOMapKeys(ctx, conn, pool, conn.config.namespace, conn.config.cephUUIDDirectoryPrefix+reservedUUID,
map[string]string{key: value})
if err != nil {
return fmt.Errorf("failed to set key %q to %q: %w", key, value, err)
}
return nil
}
// FetchAttribute fetches an attribute (key) in omap.
func (conn *Connection) FetchAttribute(ctx context.Context, pool, reservedUUID, attribute string) (string, error) {
key := conn.config.commonPrefix + attribute
values, err := getOMapValues(
ctx, conn, pool, conn.config.namespace, conn.config.cephUUIDDirectoryPrefix+reservedUUID,
conn.config.commonPrefix, []string{key})
if err != nil {
return "", fmt.Errorf("failed to get values for key %q from OMAP: %w", key, err)
}
value, ok := values[key]
if !ok {
return "", fmt.Errorf("failed to find key %q in returned map: %v", key, values)
}
return value, nil
}
// Destroy frees any resources and invalidates the journal connection.
func (conn *Connection) Destroy() {
// invalidate cluster connection metadata