示例#1
0
func (s *HTTPServer) KVSEndpoint(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
	// Set default DC
	args := structs.KeyRequest{}
	if done := s.parse(resp, req, &args.Datacenter, &args.QueryOptions); done {
		return nil, nil
	}

	// Pull out the key name, validation left to each sub-handler
	args.Key = strings.TrimPrefix(req.URL.Path, "/v1/kv/")

	// Check for a key list
	keyList := false
	params := req.URL.Query()
	if _, ok := params["keys"]; ok {
		keyList = true
	}

	// Switch on the method
	switch req.Method {
	case "GET":
		if keyList {
			return s.KVSGetKeys(resp, req, &args)
		} else {
			return s.KVSGet(resp, req, &args)
		}
	case "PUT":
		return s.KVSPut(resp, req, &args)
	case "DELETE":
		return s.KVSDelete(resp, req, &args)
	default:
		resp.WriteHeader(405)
		return nil, nil
	}
}
示例#2
0
func TestKVSEndpoint_List_Blocking(t *testing.T) {
	dir1, s1 := testServer(t)
	defer os.RemoveAll(dir1)
	defer s1.Shutdown()
	client := rpcClient(t, s1)
	defer client.Close()

	testutil.WaitForLeader(t, client.Call, "dc1")

	keys := []string{
		"/test/key1",
		"/test/key2",
		"/test/sub/key3",
	}

	for _, key := range keys {
		arg := structs.KVSRequest{
			Datacenter: "dc1",
			Op:         structs.KVSSet,
			DirEnt: structs.DirEntry{
				Key:   key,
				Flags: 1,
			},
		}
		var out bool
		if err := client.Call("KVS.Apply", &arg, &out); err != nil {
			t.Fatalf("err: %v", err)
		}
	}

	getR := structs.KeyRequest{
		Datacenter: "dc1",
		Key:        "/test",
	}
	var dirent structs.IndexedDirEntries
	if err := client.Call("KVS.List", &getR, &dirent); err != nil {
		t.Fatalf("err: %v", err)
	}

	// Setup a blocking query
	getR.MinQueryIndex = dirent.Index
	getR.MaxQueryTime = time.Second

	// Async cause a change
	start := time.Now()
	go func() {
		time.Sleep(100 * time.Millisecond)
		client := rpcClient(t, s1)
		defer client.Close()
		arg := structs.KVSRequest{
			Datacenter: "dc1",
			Op:         structs.KVSDelete,
			DirEnt: structs.DirEntry{
				Key: "/test/sub/key3",
			},
		}
		var out bool
		if err := client.Call("KVS.Apply", &arg, &out); err != nil {
			t.Fatalf("err: %v", err)
		}
	}()

	// Re-run the query
	dirent = structs.IndexedDirEntries{}
	if err := client.Call("KVS.List", &getR, &dirent); err != nil {
		t.Fatalf("err: %v", err)
	}

	// Should block at least 100ms
	if time.Now().Sub(start) < 100*time.Millisecond {
		t.Fatalf("too fast")
	}

	if dirent.Index == 0 {
		t.Fatalf("Bad: %v", dirent)
	}
	if len(dirent.Entries) != 2 {
		for _, ent := range dirent.Entries {
			t.Errorf("Bad: %#v", *ent)
		}
	}
	for i := 0; i < len(dirent.Entries); i++ {
		d := dirent.Entries[i]
		if d.Key != keys[i] {
			t.Fatalf("bad: %v", d)
		}
		if d.Flags != 1 {
			t.Fatalf("bad: %v", d)
		}
		if d.Value != nil {
			t.Fatalf("bad: %v", d)
		}
	}
}