Golang ChooseVersion Examples

Example #1

File: choose_version_test.go Project: jrperritt/gophercloud-1

func TestChooseVersionFromSuffix(t *testing.T) {
	testhelper.SetupHTTP()
	defer testhelper.TeardownHTTP()

	v2 := &utils.Version{ID: "v2.0", Priority: 2, Suffix: "/v2.0/"}
	v3 := &utils.Version{ID: "v3.0", Priority: 3, Suffix: "/v3.0/"}

	c := &gophercloud.ProviderClient{
		IdentityBase:     testhelper.Endpoint(),
		IdentityEndpoint: testhelper.Endpoint() + "v2.0/",
	}
	v, endpoint, err := utils.ChooseVersion(c, []*utils.Version{v2, v3})
	if err != nil {
		t.Fatalf("Unexpected error from ChooseVersion: %v", err)
	}

	if v != v2 {
		t.Errorf("Expected %#v to win, but %#v did instead", v2, v)
	}

	expected := testhelper.Endpoint() + "v2.0/"
	if endpoint != expected {
		t.Errorf("Expected endpoint [%s], but was [%s] instead", expected, endpoint)
	}
}

Example #2

File: client.go Project: hyperhq/kubestack

// Authenticate or re-authenticate against the most recent identity service supported at the provided endpoint.
func Authenticate(client *gophercloud.ProviderClient, options gophercloud.AuthOptions) error {
	versions := []*utils.Version{
		{ID: v20, Priority: 20, Suffix: "/v2.0/"},
		{ID: v30, Priority: 30, Suffix: "/v3/"},
	}

	chosen, endpoint, err := utils.ChooseVersion(client, versions)
	if err != nil {
		return err
	}

	switch chosen.ID {
	case v20:
		return v2auth(client, endpoint, options, gophercloud.EndpointOpts{})
	case v30:
		return v3auth(client, endpoint, options, gophercloud.EndpointOpts{})
	default:
		// The switch statement must be out of date from the versions list.
		return fmt.Errorf("Unrecognized identity version: %s", chosen.ID)
	}
}