예제 #1
2
파일: zk.go 프로젝트: jackwanger/tyrant
// Close the release channel when you want to clean up nicely.
func CreatePidNode(zconn zookeeper.Conn, zkPath string, contents string, done chan struct{}) error {
	// On the first try, assume the cluster is up and running, that will
	// help hunt down any config issues present at startup
	if _, err := zconn.Create(zkPath, []byte(contents), zookeeper.FlagEphemeral, zookeeper.WorldACL(PERM_FILE)); err != nil {
		if ZkErrorEqual(err, zookeeper.ErrNodeExists) {
			err = zconn.Delete(zkPath, -1)
		}
		if err != nil {
			return fmt.Errorf("zkutil: failed deleting pid node: %v: %v", zkPath, err)
		}
		_, err = zconn.Create(zkPath, []byte(contents), zookeeper.FlagEphemeral, zookeeper.WorldACL(PERM_FILE))
		if err != nil {
			return fmt.Errorf("zkutil: failed creating pid node: %v: %v", zkPath, err)
		}
	}

	go func() {
		for {
			_, _, watch, err := zconn.GetW(zkPath)
			if err != nil {
				if ZkErrorEqual(err, zookeeper.ErrNoNode) {
					_, err = zconn.Create(zkPath, []byte(contents), zookeeper.FlagEphemeral, zookeeper.WorldACL(zookeeper.PermAll))
					if err != nil {
						log.Warningf("failed recreating pid node: %v: %v", zkPath, err)
					} else {
						log.Infof("recreated pid node: %v", zkPath)
						continue
					}
				} else {
					log.Warningf("failed reading pid node: %v", err)
				}
			} else {
				select {
				case event := <-watch:
					if ZkEventOk(event) && event.Type == zookeeper.EventNodeDeleted {
						// Most likely another process has started up. However,
						// there is a chance that an ephemeral node is deleted by
						// the session expiring, yet that same session gets a watch
						// notification. This seems like buggy behavior, but rather
						// than race too hard on the node, just wait a bit and see
						// if the situation resolves itself.
						log.Warningf("pid deleted: %v", zkPath)
					} else {
						log.Infof("pid node event: %v", event)
					}
					// break here and wait for a bit before attempting
				case <-done:
					log.Infof("pid watcher stopped on done: %v", zkPath)
					return
				}
			}
			select {
			// No one likes a thundering herd, least of all zookeeper.
			case <-time.After(5*time.Second + time.Duration(rand.Int63n(55e9))):
			case <-done:
				log.Infof("pid watcher stopped on done: %v", zkPath)
				return
			}
		}
	}()

	return nil
}
예제 #2
0
func (zs *ZKStorage) createZPath(conn *zk.Conn, zpath string) error {
	_, err := conn.Create(zpath, nil, 0, zk.WorldACL(zk.PermAll))
	if err != nil {
		if zk.ErrNodeExists == err {
			return nil
		} else {
			parent, _ := path.Split(zpath)
			if len(parent) == 0 {
				return errors.New("Specified blank path")
			}
			err = zs.createZPath(conn, parent[:len(parent)-1])
			if err != nil {
				return err
			}

			_, err = conn.Create(zpath, nil, 0, zk.WorldACL(zk.PermAll))
			if err == zk.ErrNodeExists {
				err = nil
			}
		}
	}

	if zk.ErrNodeExists == err {
		return nil
	} else {
		return err
	}
}
예제 #3
0
// RegisterTmp create a ephemeral node, and watch it, if node droped then send a SIGQUIT to self.
func RegisterTemp(conn *zk.Conn, fpath, data string) error {
	tpath, err := conn.Create(path.Join(fpath)+"/", []byte(data), zk.FlagEphemeral|zk.FlagSequence, zk.WorldACL(zk.PermAll))
	if err != nil {
		glog.Errorf("conn.Create(\"%s\", \"%s\", zk.FlagEphemeral|zk.FlagSequence) error(%v)", fpath, data, err)
		return err
	}
	glog.V(1).Infof("create a zookeeper node:%s", tpath)
	// watch self
	go func() {
		for {
			glog.Infof("zk path: \"%s\" set a watch", tpath)
			exist, _, watch, err := conn.ExistsW(tpath)
			if err != nil {
				glog.Errorf("zk.ExistsW(\"%s\") error(%v)", tpath, err)
				glog.Warningf("zk path: \"%s\" set watch failed, kill itself", tpath)
				killSelf()
				return
			}
			if !exist {
				glog.Warningf("zk path: \"%s\" not exist, kill itself", tpath)
				killSelf()
				return
			}
			event := <-watch
			glog.Infof("zk path: \"%s\" receive a event %v", tpath, event)
		}
	}()
	return nil
}
예제 #4
0
파일: zk.go 프로젝트: jackwanger/cloud-base
// 创建一个临时节点,并监听自己
func CreateTempW(conn *zk.Conn, fpath, data string, watchFunc func(bool, zk.Event)) error {
	tpath, err := conn.Create(path.Join(fpath)+"/", []byte(data), zk.FlagEphemeral|zk.FlagSequence, zk.WorldACL(zk.PermAll))
	if err != nil {
		glog.Errorf("conn.Create(\"%s\", \"%s\", zk.FlagEphemeral|zk.FlagSequence) error(%v)", fpath, data, err)
		return err
	}
	glog.V(1).Infof("create a zookeeper node:%s", tpath)
	// watch self
	if watchFunc != nil {
		go func() {
			for {
				glog.Infof("zk path: \"%s\" set a watch", tpath)
				exist, _, watch, err := conn.ExistsW(tpath)
				if err != nil {
					glog.Errorf("zk.ExistsW(%s) error(%v)", tpath, err)
					return
				}
				event := <-watch
				watchFunc(exist, event)
				glog.Infof("zk path: \"%s\" receive a event %v", tpath, event)
			}
		}()
	}
	return nil
}
예제 #5
0
파일: util.go 프로젝트: micro/go-plugins
func createPath(path string, data []byte, client *zk.Conn) error {
	exists, _, err := client.Exists(path)
	if err != nil {
		return err
	}

	if exists {
		return nil
	}

	name := "/"
	p := strings.Split(path, "/")

	for _, v := range p[1 : len(p)-1] {
		name += v
		e, _, _ := client.Exists(name)
		if !e {
			_, err = client.Create(name, []byte{}, int32(0), zk.WorldACL(zk.PermAll))
			if err != nil {
				return err
			}
		}
		name += "/"
	}

	_, err = client.Create(path, data, int32(0), zk.WorldACL(zk.PermAll))
	return err
}
예제 #6
0
파일: service.go 프로젝트: rthomas/bamboo
/*
   Read ZK ACL:
   http://zookeeper.apache.org/doc/trunk/zookeeperProgrammers.html#sc_ACLPermissions
*/
func Create(conn *zk.Conn, zkConf conf.Zookeeper, appId string, domainValue string) (string, error) {
	path := concatPath(zkConf.Path, appId)
	resPath, err := conn.Create(path, []byte(domainValue), 0, defaultACL())
	if err != nil {
		return "", err
	}

	return resPath, nil
}
예제 #7
0
파일: zk.go 프로젝트: hzhzh007/RoomChat
// RegisterTmp create a ephemeral node, and watch it, if node droped then send a SIGQUIT to self.
func RegisterTemp(conn *zk.Conn, fpath string, data []byte) error {
	tpath, err := conn.Create(path.Join(fpath), data, zk.FlagEphemeral, zk.WorldACL(zk.PermAll))
	if err != nil {
		log.Error("conn.Create(\"%s\", \"%s\", zk.FlagEphemeral) error(%v)", fpath, string(data), err)
		return err
	}
	log.Debug("create a zookeeper node:%s", tpath)
	return nil
}
예제 #8
0
// notify every Comet node to migrate
func notifyMigrate(conn *zk.Conn, migrateLockPath, znode, key string, update bool, nodeWeightMap map[string]int) (err error) {
	// try lock
	if _, err = conn.Create(migrateLockPath, []byte("1"), zk.FlagEphemeral, zk.WorldACL(zk.PermAll)); err != nil {
		log.Error("conn.Create(\"/gopush-migrate-lock\", \"1\", zk.FlagEphemeral) error(%v)", err)
		return
	}
	// call comet migrate rpc
	wg := &sync.WaitGroup{}
	wg.Add(len(cometNodeInfoMap))
	for node, nodeInfo := range cometNodeInfoMap {
		go func(n string, info *CometNodeInfo) {
			if info.Rpc == nil {
				log.Error("notify migrate failed, no rpc found, node:%s", n)
				wg.Done()
				return
			}
			r := info.Rpc.Get()
			if r == nil {
				log.Error("notify migrate failed, no rpc found, node:%s", n)
				wg.Done()
				return
			}
			reply := 0
			args := &CometMigrateArgs{Nodes: nodeWeightMap}
			if err = r.Call(CometServiceMigrate, args, &reply); err != nil {
				log.Error("rpc.Call(\"%s\") error(%v)", CometServiceMigrate, err)
				wg.Done()
				return
			}
			log.Debug("notify node:%s migrate succeed", n)
			wg.Done()
		}(node, nodeInfo)
	}
	wg.Wait()
	// update znode info
	if update {
		var data []byte
		data, err = json.Marshal(cometNodeInfoMap[key])
		if err != nil {
			log.Error("json.Marshal() node:%s error(%v)", key, err)
			return
		}
		if _, err = conn.Set(znode, data, -1); err != nil {
			log.Error("conn.Set(\"%s\",\"%s\",\"-1\") error(%v)", znode, string(data), err)
			return
		}
	}

	// release lock
	if err = conn.Delete(migrateLockPath, -1); err != nil {
		log.Error("conn.Delete(\"%s\") error(%v)", migrateLockPath, err)
	}
	return
}
예제 #9
0
func CreateNode(path string, conn *zk.Conn) error {
	var err error
	for i := 0; i < 5; i++ {
		_, err = conn.Create(path, []byte{}, 0, zk.WorldACL(zk.PermAll))
		if err == zk.ErrNodeExists || err == nil {
			return nil
		}
		glog.Warningf("Could not create node:%s, %v", path, err)
	}
	return err
}
예제 #10
0
파일: zkutils.go 프로젝트: spenczar/zksync
// create the parent znodes up to path. does not error if any of the
// parent znodes exist.
func createParentPath(path string, conn *zk.Conn, acl []zk.ACL) error {
	parts := strings.Split(path, "/")
	prePath := ""
	for _, p := range parts[1 : len(parts)-1] {
		prePath += "/" + p
		_, err := conn.Create(prePath, []byte{}, 0, acl)
		if err != nil && err != zk.ErrNodeExists {
			return err
		}
	}
	return nil
}
예제 #11
0
파일: zk.go 프로젝트: jackwanger/tyrant
func CreateOrUpdate(zconn zookeeper.Conn, zkPath, value string, flags int, aclv []zookeeper.ACL, recursive bool) (pathCreated string, err error) {
	if recursive {
		pathCreated, err = CreateRecursive(zconn, zkPath, value, 0, zookeeper.WorldACL(zookeeper.PermAll))
	} else {
		pathCreated, err = zconn.Create(zkPath, []byte(value), 0, zookeeper.WorldACL(zookeeper.PermAll))
	}
	if err != nil && ZkErrorEqual(err, zookeeper.ErrNodeExists) {
		pathCreated = ""
		_, err = zconn.Set(zkPath, []byte(value), -1)
	}
	return
}
예제 #12
0
func bench(conn *zk.Conn, value []byte, ratio float64) {
	choice := rand.Float64()
	atomic.AddInt32(&reqCnt, 1)
	if choice >= ratio {
		// write
		conn.Delete("/_test_load_obliterator", 0)
		conn.Create("/_test_load_obliterator", value, 1, zk.WorldACL(zk.PermAll))
	} else {
		// read
		conn.Get("/_test_load_obliterator")
	}
}
예제 #13
0
파일: zk.go 프로젝트: micross/gim
func ZkCreateTempNode(zkConn *zk.Conn, path string) {
	flags := int32(zk.FlagEphemeral)
	acl := zk.WorldACL(zk.PermAll)

	fmt.Printf("%s before create \n", path)
	p, err := zkConn.Create(path, []byte(""), flags, acl)
	if err != nil {
		panic(err.Error())
	}

	fmt.Printf("%s after create \n", p)
}
예제 #14
0
파일: main.go 프로젝트: ninefive/confd
func zk_write(k string, v string, c *zk.Conn) {
	e, stat, err := c.Exists(k)
	check(err)
	if e {
		stat, err = c.Set(k, []byte(v), stat.Version)
		check(err)
	} else {
		string, err := c.Create(k, []byte(v), int32(0), zk.WorldACL(zk.PermAll))
		if string == "" {
			check(err)
		}
	}
}
예제 #15
0
파일: service.go 프로젝트: rthomas/bamboo
func ensurePathExists(conn *zk.Conn, path string) error {
	pathExists, _, _ := conn.Exists(path)
	if pathExists {
		return nil
	}

	_, err := conn.Create(path, []byte{}, 0, defaultACL())
	if err != nil {
		return err
	}

	return nil
}
예제 #16
0
파일: ios_push.go 프로젝트: jinhao/apns
func zk_reginster(path string, c *zk.Conn) (string, error) {

	mgo_path := path + "/" + *server_addr
	//tPath, err := c.Create(mgo_path, []byte{}, 0, zk.WorldACL(zk.PermAll))
	tPath, err := c.Create(path, []byte{}, 0, zk.WorldACL(zk.PermAll))
	log.Infof("zk_reginster | path :%+v", mgo_path)
	tPath, err = c.Create(mgo_path, []byte{}, zk.FlagEphemeral|zk.FlagSequence, zk.WorldACL(zk.PermAll))
	if err != nil {
		log.Warnf("zk_reginster | Create returned: %+v", err)
	}
	log.Infof("zk_reginster | create :%+v", tPath)
	return tPath, err
}
예제 #17
0
// zkData create zookeeper path, if path exists ignore error, and set node data.
func zkData(conn *zk.Conn, redisMaster string) error {
	node := path.Join(conf.ZKPath, conf.Node)
	tpath := ""
	for _, str := range strings.Split(conf.ZKPath, "/")[1:] {
		tpath = path.Join(tpath, "/", str)
		log.Info("create zookeeper path: \"%s\"", tpath)
		_, err := conn.Create(tpath, []byte(""), 0, zk.WorldACL(zk.PermAll))
		if err != nil {
			if err == zk.ErrNodeExists {
				log.Warn("zk.create(\"%s\") exists", tpath)
			} else {
				log.Error("zk.create(\"%s\") error(%v)", tpath, err)
				return err
			}
		}
	}
	if _, err := conn.Create(node, []byte{}, 0, zk.WorldACL(zk.PermAll)); err != nil {
		if err == zk.ErrNodeExists {
			oData, stat, err := conn.Get(node)
			if err != nil {
				log.Error("zk.Get(\"%s\") error(%v)", node, err)
				return err
			}
			ni := unmarshal(oData)
			if ni != nil || len(ni.Servers) == 0 {
				log.Warn("node have not data")
				return nil
			}
			data := marshal(ni, redisMaster)
			if len(data) == 0 {
				log.Warn("marshal error")
				return nil
			}
			if bytes.Equal(oData, data) {
				log.Warn("zk data same, no change")
				return nil
			}
			if _, err = conn.Set(node, data, stat.Version); err != nil {
				log.Error("zk.Set(\"%s\", data, 0) error(%v)", node, err)
				return err
			}
			log.Info("zk update data: \"%s\"", node)
		} else {
			log.Error("zk.create(\"%s\") error(%v)", tpath, err)
			return err
		}
	}
	return nil
}
예제 #18
0
파일: zk.go 프로젝트: ironzhang/golang
func CreateRecursive(conn *zk.Conn, zkPath, value string, flags int, acls []zk.ACL) (createdPath string, err error) {
	createdPath, err = conn.Create(zkPath, []byte(value), int32(flags), acls)
	if ErrorEqual(err, zk.ErrNoNode) {
		dirAcls := make([]zk.ACL, len(acls))
		for i, acl := range acls {
			dirAcls[i] = acl
			dirAcls[i].Perms = PERM_DIRECTORY
		}
		_, err = CreateRecursive(conn, path.Dir(zkPath), "", flags, dirAcls)
		if err != nil && !ErrorEqual(err, zk.ErrNodeExists) {
			return "", err
		}
		createdPath, err = conn.Create(zkPath, []byte(value), int32(flags), acls)
	}
	return
}
예제 #19
0
파일: zk.go 프로젝트: ksarch-saas/cc
func CreateRecursive(zconn *zookeeper.Conn, zkPath, value string, flags int32, aclv []zookeeper.ACL) (pathCreated string, err error) {
	pathCreated, err = zconn.Create(zkPath, []byte(value), flags, aclv)
	if err == zookeeper.ErrNoNode {
		dirAclv := make([]zookeeper.ACL, len(aclv))
		for i, acl := range aclv {
			dirAclv[i] = acl
			dirAclv[i].Perms = PERM_DIRECTORY
		}
		_, err = CreateRecursive(zconn, path.Dir(zkPath), "", flags, dirAclv)
		if err != nil && err != zookeeper.ErrNodeExists {
			return "", err
		}
		pathCreated, err = zconn.Create(zkPath, []byte(value), flags, aclv)
	}
	return
}
예제 #20
0
파일: zk.go 프로젝트: jackwanger/cloud-base
func Create(conn *zk.Conn, fpath string) error {
	tpath := ""
	for _, str := range strings.Split(fpath, "/")[1:] {
		tpath = path.Join(tpath, "/", str)
		glog.V(1).Infof("create zookeeper path: \"%s\"", tpath)
		_, err := conn.Create(tpath, []byte(""), 0, zk.WorldACL(zk.PermAll))
		if err != nil {
			if err == zk.ErrNodeExists {
				glog.Warningf("zk.create(\"%s\") exists", tpath)
			} else {
				glog.Errorf("zk.create(\"%s\") error(%v)", tpath, err)
				return err
			}
		}
	}
	return nil
}
예제 #21
0
파일: zk.go 프로젝트: klaviyo/zookeepercli
// createInternalWithACL: create a new path with acl
func createInternalWithACL(connection *zk.Conn, path string, data []byte, force bool, perms []zk.ACL) (string, error) {
	if path == "/" {
		return "/", nil
	}
	log.Debugf("creating: %s with acl ", path)
	attempts := 0
	for {
		attempts += 1
		returnValue, err := connection.Create(path, data, flags, perms)
		log.Debugf("create status for %s: %s, %+v", path, returnValue, err)
		if err != nil && force && attempts < 2 {
			returnValue, err = createInternalWithACL(connection, gopath.Dir(path), []byte("zookeepercli auto-generated"), force, perms)
		} else {
			return returnValue, err
		}
	}
	return "", nil
}
예제 #22
0
파일: zk.go 프로젝트: micross/gim
func ZkCreateRoot(zkConn *zk.Conn, root string) {
	flags := int32(0)
	acl := zk.WorldACL(zk.PermAll)

	found, _, _, err := zkConn.ExistsW(root)
	if err != nil {
		panic(err.Error())
	}

	if !found {
		fmt.Printf("create %s\n", root)
		path, err := zkConn.Create(root, []byte(""), flags, acl)
		if err != nil {
			panic(err.Error())
		}
		fmt.Printf("created %s\n", path)
	}
}
예제 #23
0
// NewElection initializes a new instance of a Election that can later be used to request
// leadership for a specific resource.
//
// It accepts:
//	zkConn - a connection to a running Zookeeper instance
//	resource - the resource for which leadership is being requested
//
// It will return either a non-nil Election instance and a nil error, or a nil
// Election and a non-nil error.
//
func NewElection(zkConn *zk.Conn, electionNode string) (Election, error) {
	//TODO: what should flags and acl be set to?
	flags := int32(0)
	acl := zk.WorldACL(zk.PermAll)

	exists, _, _ := zkConn.Exists(electionNode)
	var (
		path string
		err  error
	)
	if !exists {
		path, err = zkConn.Create(electionNode, []byte("data"), flags, acl)
		must(err)
		fmt.Printf("created: %+v\n", path)
	}

	return Election{electionNode, Candidate{}, false, zkConn, nil}, nil
}
func checkPath(conn *zk.Conn, path string) {
	exists, _, err := conn.Exists(path)
	if exists {
		if path == "/" {
			path = os.Getenv("ZK_BASE")
			if path == "" {
				path = zkBase
			}
			_, err := conn.Create(path, []byte{}, flags, acl)
			check(err)
		}
		return
	}
	checkPath(conn, filepath.Dir(path))
	_, err = conn.Create(path, []byte{}, flags, acl)
	check(err)
	return
}
예제 #25
0
func mkdirs(conn *zk.Conn, path string) (err error) {
	if path == "" {
		return errors.New("path should not been empty")
	}
	if path == "/" {
		return nil
	}
	if path[0] != '/' {
		return errors.New("path must start with /")
	}

	//check whether this path exists
	exist, _, err := conn.Exists(path)
	if exist {
		return nil
	}
	flags := int32(0)
	acl := zk.WorldACL(zk.PermAll)
	_, err = conn.Create(path, []byte(""), flags, acl)
	if err == nil { //created successfully
		return
	}

	//create parent
	paths := strings.Split(path[1:], "/")
	createdPath := ""
	for _, p := range paths {
		createdPath = createdPath + "/" + p
		exist, _, _ = conn.Exists(createdPath)
		if !exist {
			_, err = conn.Create(createdPath, []byte(""), flags, acl)
			if err != nil {
				return
			}
		}
	}

	return nil
}
예제 #26
0
파일: zk.go 프로젝트: jackwanger/tyrant
// Create a path and any pieces required, think mkdir -p.
// Intermediate znodes are always created empty.
func CreateRecursive(zconn zookeeper.Conn, zkPath, value string, flags int, aclv []zookeeper.ACL) (pathCreated string, err error) {
	parts := strings.Split(zkPath, "/")
	if parts[1] != MagicPrefix {
		return "", fmt.Errorf("zkutil: non /%v path: %v", MagicPrefix, zkPath)
	}

	pathCreated, err = zconn.Create(zkPath, []byte(value), int32(flags), aclv)
	if ZkErrorEqual(err, zookeeper.ErrNoNode) {
		// Make sure that nodes are either "file" or "directory" to mirror file system
		// semantics.
		dirAclv := make([]zookeeper.ACL, len(aclv))
		for i, acl := range aclv {
			dirAclv[i] = acl
			dirAclv[i].Perms = PERM_DIRECTORY
		}
		_, err = CreateRecursive(zconn, path.Dir(zkPath), "", flags, dirAclv)
		if err != nil && !ZkErrorEqual(err, zookeeper.ErrNodeExists) {
			return "", err
		}
		pathCreated, err = zconn.Create(zkPath, []byte(value), int32(flags), aclv)
	}
	return
}
// Tries to create the configuration path, if it doesn't exist
// It tries multiple times in case there's a race with another quotaservice node coming up
func createPath(conn *zk.Conn, path string) (err error) {
	for i := 0; i < createRetries; i++ {
		exists, _, err := conn.Exists(path)

		if exists && err == nil {
			return nil
		}

		_, err = conn.Create(path, []byte{}, 0, zk.WorldACL(zk.PermAll))

		if err == nil {
			return nil
		}

		logging.Printf("Could not create zk path, sleeping for 100ms")
		time.Sleep(100 * time.Millisecond)
	}

	if err == nil {
		err = errors.New("could not create and get path " + path)
	}

	return err
}
예제 #28
0
파일: commands.go 프로젝트: tomwans/zk
func createRecursively(zkConn *zk.Conn, path string, data []byte, flags int32, acl []zk.ACL) error {
	pieces := strings.Split(path, "/")
	acc := ""
	for _, piece := range pieces {
		fullpath := acc + "/" + piece

		// skip trying to create the root node.
		if fullpath == "/" {
			continue
		}

		// just try to create it
		_, err := zkConn.Create(fullpath, data, flags, acl)

		// if its *NOT* an existing node, then return the err.
		if err != nil && err != zk.ErrNodeExists {
			return err
		}

		// continue on.
		acc = acc + "/" + piece
	}
	return nil
}
예제 #29
0
파일: qzk.go 프로젝트: QubitProducts/bamboo
func zkCreateNodes(path string, nodes []string, c *zk.Conn) error {
	if len(nodes) > 0 {
		// strings.Split will return empty-strings for leading split chars, lets skip over these.
		if len(nodes[0]) == 0 {
			return zkCreateNodes(path, nodes[1:], c)
		}
		fqPath := path + "/" + nodes[0]
		log.Printf("Creating path: %v", fqPath)
		exists, _, err := c.Exists(fqPath)
		if err != nil {
			return err
		}
		if !exists {
			_, err := c.Create(fqPath, []byte{}, 0, zk.WorldACL(zk.PermAll))
			if err != nil {
				return err
			}
		}
		return zkCreateNodes(fqPath, nodes[1:], c)
	}
	return nil
}
예제 #30
0
				Ω(string(node.Value)).Should(Equal("waffle"))
				Ω(int(node.TTL)).Should(Equal(0))
			})
		})

		Context("when the node does not exist", func() {
			It("returns the StoreErrorKeyNotFound error", func() {
				node, err := adapter.Get("/no/node/for/you")
				Ω(err).Should(Equal(ErrorKeyNotFound))
				Ω(node).Should(BeZero())
			})
		})

		Context("when the node has an invalid format", func() {
			BeforeEach(func() {
				client.Create("/missingTTL", []byte("waffle"), 0, zk.WorldACL(zk.PermAll))
				client.Create("/invalidTTL", []byte("a,waffle"), 0, zk.WorldACL(zk.PermAll))
			})

			It("returns the StoreErrorInvalidFormat error", func() {
				node, err := adapter.Get("/missingTTL")
				Ω(err).Should(Equal(ErrorInvalidFormat), "Expected the error to be an IsInvalidFormatError error")
				Ω(node).Should(BeZero())

				node, err = adapter.Get("/invalidTTL")
				Ω(err).Should(Equal(ErrorInvalidFormat), "Expected the error to be an IsInvalidFormatError error")
				Ω(node).Should(BeZero())
			})
		})
	})