// ListPrefix is used to list a subtree of an entity, such as listing volume by policy.
func (c *Client) ListPrefix(prefix string, obj db.Entity) ([]db.Entity, error) {
resp, err := c.client.Get(context.Background(), c.qualified(path.Join(obj.Prefix(), prefix)), &client.GetOptions{Recursive: true})
if err != nil {
return nil, err
}
return c.traverse(resp.Node, obj), nil
}
// ListPrefix lists all the entities under prefix instead of listing the whole keyspace.
func (c *Client) ListPrefix(prefix string, obj db.Entity) ([]db.Entity, error) {
pairs, _, err := c.client.KV().List(c.qualified(path.Join(obj.Prefix(), prefix)), nil)
if err != nil {
return nil, err
}
entities := []db.Entity{}
for _, pair := range pairs {
copy, err := helpers.ReadAndSet(c, obj, pair.Key, pair.Value)
if err != nil {
return nil, err
}
entities = append(entities, copy)
}
return entities, nil
}
// WatchPrefixStop stops a watch.
func (c *Client) WatchPrefixStop(obj db.Entity) error {
return helpers.WatchStop(c, obj.Prefix(), c.watchers, &c.watcherMutex)
}
// WatchPrefix watches a directory prefix for changes.
func (c *Client) WatchPrefix(obj db.Entity) (chan db.Entity, chan error) {
// these paths are qualified in watchInternal
return helpers.WrapWatch(c, obj, obj.Prefix(), true, c.watchers, &c.watcherMutex, c.watchInternal)
}
// WatchPrefix watches all items under the given entity's prefix
func (c *Client) WatchPrefix(obj db.Entity) (chan db.Entity, chan error) {
return helpers.WrapWatch(c, obj, obj.Prefix(), true, c.watchers, &c.watcherMutex, c.startWatch)
}
// WatchPrefixStop stops
func (c *Client) WatchPrefixStop(obj db.Entity) error {
return c.watchStopPath(obj.Prefix())
}
// WatchPrefix watches all items under the given entity's prefix
func (c *Client) WatchPrefix(obj db.Entity) (chan db.Entity, chan error) {
return c.watchPath(obj, obj.Prefix(), true)
}
