func getActions(wr *wrangler.Wrangler, zconn zk.Conn, actionPath string) ([]*actionnode.ActionNode, error) {
actions, _, err := zconn.Children(actionPath)
if err != nil {
return nil, fmt.Errorf("getActions failed: %v %v", actionPath, err)
}
sort.Strings(actions)
wg := sync.WaitGroup{}
mu := sync.Mutex{}
nodes := make([]*actionnode.ActionNode, 0, len(actions))
for _, action := range actions {
wg.Add(1)
go func(action string) {
defer wg.Done()
actionNodePath := path.Join(actionPath, action)
data, _, err := zconn.Get(actionNodePath)
if err != nil && !zookeeper.IsError(err, zookeeper.ZNONODE) {
wr.Logger().Warningf("getActions: %v %v", actionNodePath, err)
return
}
actionNode, err := actionnode.ActionNodeFromJson(data, actionNodePath)
if err != nil {
wr.Logger().Warningf("getActions: %v %v", actionNodePath, err)
return
}
mu.Lock()
nodes = append(nodes, actionNode)
mu.Unlock()
}(action)
}
wg.Wait()
return nodes, nil
}
func ReadAddrs(zconn zk.Conn, zkPath string) (*ZknsAddrs, error) {
data, stat, err := zconn.Get(zkPath)
if err != nil {
return nil, err
}
addrs := new(ZknsAddrs)
err = json.Unmarshal([]byte(data), addrs)
if err != nil {
return nil, err
}
addrs.version = stat.Version()
return addrs, nil
}
// ReadAddrs returns a ZknsAddrs record from the given path in Zookeeper.
func ReadAddrs(zconn zk.Conn, zkPath string) (*ZknsAddrs, error) {
data, stat, err := zconn.Get(zkPath)
if err != nil {
return nil, err
}
// There are nodes that will have no data - for instance a subdomain node.
if len(data) == 0 {
return nil, nil
}
addrs := new(ZknsAddrs)
err = json.Unmarshal([]byte(data), addrs)
if err != nil {
return nil, err
}
addrs.version = stat.Version()
return addrs, nil
}
