Golang arvadosclient.MakeArvadosClient函数代码示例

func (s *StandaloneSuite) TestGetFailRetry(c *C) {
	hash := fmt.Sprintf("%x", md5.Sum([]byte("foo")))

	st := &FailThenSucceedHandler{make(chan string, 1), 0,
		StubGetHandler{
			c,
			hash,
			"abc123",
			http.StatusOK,
			[]byte("foo")}}

	ks := RunFakeKeepServer(st)
	defer ks.listener.Close()

	arv, err := arvadosclient.MakeArvadosClient()
	kc, _ := MakeKeepClient(&arv)
	arv.ApiToken = "abc123"
	kc.SetServiceRoots(map[string]string{"x": ks.url}, nil, nil)

	r, n, url2, err := kc.Get(hash)
	defer r.Close()
	c.Check(err, Equals, nil)
	c.Check(n, Equals, int64(3))
	c.Check(url2, Equals, fmt.Sprintf("%s/%s", ks.url, hash))

	content, err2 := ioutil.ReadAll(r)
	c.Check(err2, Equals, nil)
	c.Check(content, DeepEquals, []byte("foo"))
}

func (s *StandaloneSuite) TestPutBRetry(c *C) {
	st := &FailThenSucceedPutHandler{make(chan string, 1), 0,
		StubPutHandler{
			c,
			Md5String("foo"),
			"abc123",
			"foo",
			make(chan string, 5)}}

	arv, _ := arvadosclient.MakeArvadosClient()
	kc, _ := MakeKeepClient(&arv)

	kc.Want_replicas = 2
	arv.ApiToken = "abc123"
	localRoots := make(map[string]string)
	writableLocalRoots := make(map[string]string)

	ks := RunSomeFakeKeepServers(st, 2)

	for i, k := range ks {
		localRoots[fmt.Sprintf("zzzzz-bi6l4-fakefakefake%03d", i)] = k.url
		writableLocalRoots[fmt.Sprintf("zzzzz-bi6l4-fakefakefake%03d", i)] = k.url
		defer k.listener.Close()
	}

	kc.SetServiceRoots(localRoots, writableLocalRoots, nil)

	hash, replicas, err := kc.PutB([]byte("foo"))

	c.Check(err, Equals, nil)
	c.Check(hash, Equals, "")
	c.Check(replicas, Equals, 2)
}

func (s *StandaloneSuite) TestGetIndexWithPrefix(c *C) {
	hash := fmt.Sprintf("%x", md5.Sum([]byte("foo")))

	st := StubGetIndexHandler{
		c,
		"/index/" + hash[0:3],
		"abc123",
		http.StatusOK,
		[]byte(hash + "+3 1443559274\n\n")}

	ks := RunFakeKeepServer(st)
	defer ks.listener.Close()

	arv, err := arvadosclient.MakeArvadosClient()
	kc, _ := MakeKeepClient(&arv)
	arv.ApiToken = "abc123"
	kc.SetServiceRoots(map[string]string{"x": ks.url}, nil, nil)

	r, err := kc.GetIndex("x", hash[0:3])
	c.Check(err, Equals, nil)

	content, err2 := ioutil.ReadAll(r)
	c.Check(err2, Equals, nil)
	c.Check(content, DeepEquals, st.body[0:len(st.body)-1])
}

func (s *StandaloneSuite) TestChecksum(c *C) {
	foohash := fmt.Sprintf("%x", md5.Sum([]byte("foo")))
	barhash := fmt.Sprintf("%x", md5.Sum([]byte("bar")))

	st := BarHandler{make(chan string, 1)}

	ks := RunFakeKeepServer(st)
	defer ks.listener.Close()

	arv, err := arvadosclient.MakeArvadosClient()
	kc, _ := MakeKeepClient(&arv)
	arv.ApiToken = "abc123"
	kc.SetServiceRoots(map[string]string{"x": ks.url}, nil, nil)

	r, n, _, err := kc.Get(barhash)
	_, err = ioutil.ReadAll(r)
	c.Check(n, Equals, int64(3))
	c.Check(err, Equals, nil)

	<-st.handled

	r, n, _, err = kc.Get(foohash)
	_, err = ioutil.ReadAll(r)
	c.Check(n, Equals, int64(3))
	c.Check(err, Equals, BadChecksum)

	<-st.handled
}

func (s *StandaloneSuite) TestPutBWithNoWritableLocalRoots(c *C) {
	hash := Md5String("foo")

	st := StubPutHandler{
		c,
		hash,
		"abc123",
		"foo",
		make(chan string, 5)}

	arv, _ := arvadosclient.MakeArvadosClient()
	kc, _ := MakeKeepClient(&arv)

	kc.Want_replicas = 2
	arv.ApiToken = "abc123"
	localRoots := make(map[string]string)
	writableLocalRoots := make(map[string]string)

	ks := RunSomeFakeKeepServers(st, 5)

	for i, k := range ks {
		localRoots[fmt.Sprintf("zzzzz-bi6l4-fakefakefake%03d", i)] = k.url
		defer k.listener.Close()
	}

	kc.SetServiceRoots(localRoots, writableLocalRoots, nil)

	_, replicas, err := kc.PutB([]byte("foo"))

	c.Check(err, Equals, InsufficientReplicasError)
	c.Check(replicas, Equals, 0)
}

func (s *StandaloneSuite) TestPutProxyInsufficientReplicas(c *C) {
	log.Printf("TestPutProxy")

	st := StubProxyHandler{make(chan string, 1)}

	arv, err := arvadosclient.MakeArvadosClient()
	kc, _ := MakeKeepClient(&arv)

	kc.Want_replicas = 3
	kc.Using_proxy = true
	arv.ApiToken = "abc123"
	localRoots := make(map[string]string)
	writableLocalRoots := make(map[string]string)

	ks1 := RunSomeFakeKeepServers(st, 1)

	for i, k := range ks1 {
		localRoots[fmt.Sprintf("zzzzz-bi6l4-fakefakefake%03d", i)] = k.url
		writableLocalRoots[fmt.Sprintf("zzzzz-bi6l4-fakefakefake%03d", i)] = k.url
		defer k.listener.Close()
	}
	kc.SetServiceRoots(localRoots, writableLocalRoots, nil)

	_, replicas, err := kc.PutB([]byte("foo"))
	<-st.handled

	c.Check(err, Equals, InsufficientReplicasError)
	c.Check(replicas, Equals, 2)

	log.Printf("TestPutProxy done")
}

func (s *StandaloneSuite) TestPutWithFail(c *C) {
	log.Printf("TestPutWithFail")

	hash := fmt.Sprintf("%x", md5.Sum([]byte("foo")))

	st := StubPutHandler{
		c,
		hash,
		"abc123",
		"foo",
		make(chan string, 4)}

	fh := FailHandler{
		make(chan string, 1)}

	arv, err := arvadosclient.MakeArvadosClient()
	kc, _ := MakeKeepClient(&arv)

	kc.Want_replicas = 2
	arv.ApiToken = "abc123"
	localRoots := make(map[string]string)
	writableLocalRoots := make(map[string]string)

	ks1 := RunSomeFakeKeepServers(st, 4)
	ks2 := RunSomeFakeKeepServers(fh, 1)

	for i, k := range ks1 {
		localRoots[fmt.Sprintf("zzzzz-bi6l4-fakefakefake%03d", i)] = k.url
		writableLocalRoots[fmt.Sprintf("zzzzz-bi6l4-fakefakefake%03d", i)] = k.url
		defer k.listener.Close()
	}
	for i, k := range ks2 {
		localRoots[fmt.Sprintf("zzzzz-bi6l4-fakefakefake%03d", i+len(ks1))] = k.url
		writableLocalRoots[fmt.Sprintf("zzzzz-bi6l4-fakefakefake%03d", i+len(ks1))] = k.url
		defer k.listener.Close()
	}

	kc.SetServiceRoots(localRoots, writableLocalRoots, nil)

	shuff := NewRootSorter(
		kc.LocalRoots(), Md5String("foo")).GetSortedRoots()

	phash, replicas, err := kc.PutB([]byte("foo"))

	<-fh.handled

	c.Check(err, Equals, nil)
	c.Check(phash, Equals, "")
	c.Check(replicas, Equals, 2)

	s1 := <-st.handled
	s2 := <-st.handled

	c.Check((s1 == shuff[1] && s2 == shuff[2]) ||
		(s1 == shuff[2] && s2 == shuff[1]),
		Equals,
		true)
}

// Since keepstore does not come into picture in tests,
// we need to explicitly start the goroutine in tests.
func RunTestPullWorker(c *C) {
	arv, err := arvadosclient.MakeArvadosClient()
	c.Assert(err, Equals, nil)
	keepClient, err := keepclient.MakeKeepClient(&arv)
	c.Assert(err, Equals, nil)

	pullq = NewWorkQueue()
	go RunPullWorker(pullq, keepClient)
}

func (s *StandaloneSuite) TestGetWithFailures(c *C) {
	content := []byte("waz")
	hash := fmt.Sprintf("%x", md5.Sum(content))

	fh := Error404Handler{
		make(chan string, 4)}

	st := StubGetHandler{
		c,
		hash,
		"abc123",
		http.StatusOK,
		content}

	arv, err := arvadosclient.MakeArvadosClient()
	kc, _ := MakeKeepClient(&arv)
	arv.ApiToken = "abc123"
	localRoots := make(map[string]string)
	writableLocalRoots := make(map[string]string)

	ks1 := RunSomeFakeKeepServers(st, 1)
	ks2 := RunSomeFakeKeepServers(fh, 4)

	for i, k := range ks1 {
		localRoots[fmt.Sprintf("zzzzz-bi6l4-fakefakefake%03d", i)] = k.url
		writableLocalRoots[fmt.Sprintf("zzzzz-bi6l4-fakefakefake%03d", i)] = k.url
		defer k.listener.Close()
	}
	for i, k := range ks2 {
		localRoots[fmt.Sprintf("zzzzz-bi6l4-fakefakefake%03d", i+len(ks1))] = k.url
		writableLocalRoots[fmt.Sprintf("zzzzz-bi6l4-fakefakefake%03d", i+len(ks1))] = k.url
		defer k.listener.Close()
	}

	kc.SetServiceRoots(localRoots, writableLocalRoots, nil)
	kc.Retries = 0

	// This test works only if one of the failing services is
	// attempted before the succeeding service. Otherwise,
	// <-fh.handled below will just hang! (Probe order depends on
	// the choice of block content "waz" and the UUIDs of the fake
	// servers, so we just tried different strings until we found
	// an example that passes this Assert.)
	c.Assert(NewRootSorter(localRoots, hash).GetSortedRoots()[0], Not(Equals), ks1[0].url)

	r, n, url2, err := kc.Get(hash)

	<-fh.handled
	c.Check(err, Equals, nil)
	c.Check(n, Equals, int64(3))
	c.Check(url2, Equals, fmt.Sprintf("%s/%s", ks1[0].url, hash))

	read_content, err2 := ioutil.ReadAll(r)
	c.Check(err2, Equals, nil)
	c.Check(read_content, DeepEquals, content)
}

func ExampleRefreshServices() {
	arv, err := arvadosclient.MakeArvadosClient()
	if err != nil {
		panic(err)
	}
	kc, err := MakeKeepClient(&arv)
	if err != nil {
		panic(err)
	}
	go kc.RefreshServices(5*time.Minute, 3*time.Second)
	fmt.Printf("LocalRoots: %#v\n", kc.LocalRoots())
}

func (s *ServerRequiredSuite) TestMakeKeepClient(c *C) {
	arv, err := arvadosclient.MakeArvadosClient()
	c.Assert(err, Equals, nil)

	kc, err := MakeKeepClient(&arv)

	c.Assert(err, Equals, nil)
	c.Check(len(kc.LocalRoots()), Equals, 2)
	for _, root := range kc.LocalRoots() {
		c.Check(root, Matches, "http://localhost:\\d+")
	}
}

func (s *StandaloneSuite) TestPutHR(c *C) {
	log.Printf("TestPutHR")

	hash := fmt.Sprintf("%x", md5.Sum([]byte("foo")))

	st := StubPutHandler{
		c,
		hash,
		"abc123",
		"foo",
		make(chan string, 5)}

	arv, _ := arvadosclient.MakeArvadosClient()
	kc, _ := MakeKeepClient(&arv)

	kc.Want_replicas = 2
	arv.ApiToken = "abc123"
	localRoots := make(map[string]string)
	writableLocalRoots := make(map[string]string)

	ks := RunSomeFakeKeepServers(st, 5)

	for i, k := range ks {
		localRoots[fmt.Sprintf("zzzzz-bi6l4-fakefakefake%03d", i)] = k.url
		writableLocalRoots[fmt.Sprintf("zzzzz-bi6l4-fakefakefake%03d", i)] = k.url
		defer k.listener.Close()
	}

	kc.SetServiceRoots(localRoots, writableLocalRoots, nil)

	reader, writer := io.Pipe()

	go func() {
		writer.Write([]byte("foo"))
		writer.Close()
	}()

	kc.PutHR(hash, reader, 3)

	shuff := NewRootSorter(kc.LocalRoots(), hash).GetSortedRoots()
	log.Print(shuff)

	s1 := <-st.handled
	s2 := <-st.handled

	c.Check((s1 == shuff[0] && s2 == shuff[1]) ||
		(s1 == shuff[1] && s2 == shuff[0]),
		Equals,
		true)

	log.Printf("TestPutHR done")
}

// Use a service hint to fetch from a local disk service, overriding
// rendezvous probe order.
func (s *StandaloneSuite) TestGetWithLocalServiceHint(c *C) {
	uuid := "zzzzz-bi6l4-zzzzzzzzzzzzzzz"
	hash := fmt.Sprintf("%x", md5.Sum([]byte("foo")))

	// This one shouldn't be used, although it appears first in
	// rendezvous probe order:
	ks0 := RunFakeKeepServer(StubGetHandler{
		c,
		"error if used",
		"abc123",
		http.StatusOK,
		[]byte("foo")})
	defer ks0.listener.Close()
	// This one should be used:
	ks := RunFakeKeepServer(StubGetHandler{
		c,
		hash + "[email protected]" + uuid,
		"abc123",
		http.StatusOK,
		[]byte("foo")})
	defer ks.listener.Close()

	arv, err := arvadosclient.MakeArvadosClient()
	kc, _ := MakeKeepClient(&arv)
	arv.ApiToken = "abc123"
	kc.SetServiceRoots(
		map[string]string{
			"zzzzz-bi6l4-yyyyyyyyyyyyyyy": ks0.url,
			"zzzzz-bi6l4-xxxxxxxxxxxxxxx": ks0.url,
			"zzzzz-bi6l4-wwwwwwwwwwwwwww": ks0.url,
			uuid: ks.url},
		nil,
		map[string]string{
			"zzzzz-bi6l4-yyyyyyyyyyyyyyy": ks0.url,
			"zzzzz-bi6l4-xxxxxxxxxxxxxxx": ks0.url,
			"zzzzz-bi6l4-wwwwwwwwwwwwwww": ks0.url,
			uuid: ks.url},
	)

	r, n, uri, err := kc.Get(hash + "[email protected]" + uuid)
	defer r.Close()
	c.Check(err, Equals, nil)
	c.Check(n, Equals, int64(3))
	c.Check(uri, Equals, fmt.Sprintf("%s/%s", ks.url, hash+"[email protected]"+uuid))

	content, err := ioutil.ReadAll(r)
	c.Check(err, Equals, nil)
	c.Check(content, DeepEquals, []byte("foo"))
}

func (s *ServerRequiredSuite) TestDefaultReplications(c *C) {
	arv, err := arvadosclient.MakeArvadosClient()
	c.Assert(err, Equals, nil)

	kc, err := MakeKeepClient(&arv)
	c.Assert(kc.Want_replicas, Equals, 2)

	arv.DiscoveryDoc["defaultCollectionReplication"] = 3.0
	kc, err = MakeKeepClient(&arv)
	c.Assert(kc.Want_replicas, Equals, 3)

	arv.DiscoveryDoc["defaultCollectionReplication"] = 1.0
	kc, err = MakeKeepClient(&arv)
	c.Assert(kc.Want_replicas, Equals, 1)
}

func SetupPullWorkerIntegrationTest(t *testing.T, testData PullWorkIntegrationTestData, wantData bool) PullRequest {
	os.Setenv("ARVADOS_API_HOST_INSECURE", "true")

	// start api and keep servers
	arvadostest.StartAPI()
	arvadostest.StartKeep(2, false)

	// make arvadosclient
	arv, err := arvadosclient.MakeArvadosClient()
	if err != nil {
		t.Error("Error creating arv")
	}

	// keep client
	keepClient = &keepclient.KeepClient{
		Arvados:       &arv,
		Want_replicas: 1,
		Using_proxy:   true,
		Client:        &http.Client{},
	}

	// discover keep services
	var servers []string
	if err := keepClient.DiscoverKeepServers(); err != nil {
		t.Error("Error discovering keep services")
	}
	for _, host := range keepClient.LocalRoots() {
		servers = append(servers, host)
	}

	// Put content if the test needs it
	if wantData {
		locator, _, err := keepClient.PutB([]byte(testData.Content))
		if err != nil {
			t.Errorf("Error putting test data in setup for %s %s %v", testData.Content, locator, err)
		}
		if locator == "" {
			t.Errorf("No locator found after putting test data")
		}
	}

	// Create pullRequest for the test
	pullRequest := PullRequest{
		Locator: testData.Locator,
		Servers: servers,
	}
	return pullRequest
}