Esempio n. 1
0
func BenchmarkCodegenIterator(b *testing.B) {
	reqNum := 0
	db := benchDb()
	db.Handlers.Unmarshal.PushBack(func(r *aws.Request) {
		r.Data = benchResps[reqNum]
		reqNum++
	})

	input := &dynamodb.ListTablesInput{Limit: aws.Long(2)}
	iter := func(fn func(*dynamodb.ListTablesOutput, bool) bool) error {
		page, _ := db.ListTablesRequest(input)
		for ; page != nil; page = page.NextPage() {
			page.Send()
			out := page.Data.(*dynamodb.ListTablesOutput)
			if result := fn(out, !page.HasNextPage()); page.Error != nil || !result {
				return page.Error
			}
		}
		return nil
	}

	for i := 0; i < b.N; i++ {
		reqNum = 0
		iter(func(p *dynamodb.ListTablesOutput, last bool) bool {
			return true
		})
	}
}
Esempio n. 2
0
// Retrieve generates a new set of temporary credentials using STS.
func (p *AssumeRoleProvider) Retrieve() (credentials.Value, error) {

	// Apply defaults where parameters are not set.
	if p.Client == nil {
		p.Client = sts.New(nil)
	}
	if p.RoleSessionName == "" {
		// Try to work out a role name that will hopefully end up unique.
		p.RoleSessionName = fmt.Sprintf("%d", time.Now().UTC().UnixNano())
	}
	if p.Duration == 0 {
		// Expire as often as AWS permits.
		p.Duration = 15 * time.Minute
	}

	roleOutput, err := p.Client.AssumeRole(&sts.AssumeRoleInput{
		DurationSeconds: aws.Long(int64(p.Duration / time.Second)),
		RoleARN:         aws.String(p.RoleARN),
		RoleSessionName: aws.String(p.RoleSessionName),
	})

	if err != nil {
		return credentials.Value{}, err
	}

	// We will proactively generate new credentials before they expire.
	p.SetExpiration(*roleOutput.Credentials.Expiration, p.ExpiryWindow)

	return credentials.Value{
		AccessKeyID:     *roleOutput.Credentials.AccessKeyID,
		SecretAccessKey: *roleOutput.Credentials.SecretAccessKey,
		SessionToken:    *roleOutput.Credentials.SessionToken,
	}, nil
}
Esempio n. 3
0
// Use DynamoDB methods for simplicity
func TestPaginationEachPage(t *testing.T) {
	db := dynamodb.New(nil)
	tokens, pages, numPages, gotToEnd := []string{}, []string{}, 0, false

	reqNum := 0
	resps := []*dynamodb.ListTablesOutput{
		{TableNames: []*string{aws.String("Table1"), aws.String("Table2")}, LastEvaluatedTableName: aws.String("Table2")},
		{TableNames: []*string{aws.String("Table3"), aws.String("Table4")}, LastEvaluatedTableName: aws.String("Table4")},
		{TableNames: []*string{aws.String("Table5")}},
	}

	db.Handlers.Send.Clear() // mock sending
	db.Handlers.Unmarshal.Clear()
	db.Handlers.UnmarshalMeta.Clear()
	db.Handlers.ValidateResponse.Clear()
	db.Handlers.Build.PushBack(func(r *aws.Request) {
		in := r.Params.(*dynamodb.ListTablesInput)
		if in == nil {
			tokens = append(tokens, "")
		} else if in.ExclusiveStartTableName != nil {
			tokens = append(tokens, *in.ExclusiveStartTableName)
		}
	})
	db.Handlers.Unmarshal.PushBack(func(r *aws.Request) {
		r.Data = resps[reqNum]
		reqNum++
	})

	params := &dynamodb.ListTablesInput{Limit: aws.Long(2)}
	req, _ := db.ListTablesRequest(params)
	err := req.EachPage(func(p interface{}, last bool) bool {
		numPages++
		for _, t := range p.(*dynamodb.ListTablesOutput).TableNames {
			pages = append(pages, *t)
		}
		if last {
			if gotToEnd {
				assert.Fail(t, "last=true happened twice")
			}
			gotToEnd = true
		}

		return true
	})

	assert.Equal(t, []string{"Table2", "Table4"}, tokens)
	assert.Equal(t, []string{"Table1", "Table2", "Table3", "Table4", "Table5"}, pages)
	assert.Equal(t, 3, numPages)
	assert.True(t, gotToEnd)
	assert.Nil(t, err)
}
Esempio n. 4
0
func BenchmarkEachPageIterator(b *testing.B) {
	reqNum := 0
	db := benchDb()
	db.Handlers.Unmarshal.PushBack(func(r *aws.Request) {
		r.Data = benchResps[reqNum]
		reqNum++
	})

	input := &dynamodb.ListTablesInput{Limit: aws.Long(2)}
	for i := 0; i < b.N; i++ {
		reqNum = 0
		req, _ := db.ListTablesRequest(input)
		req.EachPage(func(p interface{}, last bool) bool {
			return true
		})
	}
}
Esempio n. 5
0
// Use DynamoDB methods for simplicity
func TestPaginationEarlyExit(t *testing.T) {
	db := dynamodb.New(nil)
	numPages, gotToEnd := 0, false

	reqNum := 0
	resps := []*dynamodb.ListTablesOutput{
		{TableNames: []*string{aws.String("Table1"), aws.String("Table2")}, LastEvaluatedTableName: aws.String("Table2")},
		{TableNames: []*string{aws.String("Table3"), aws.String("Table4")}, LastEvaluatedTableName: aws.String("Table4")},
		{TableNames: []*string{aws.String("Table5")}},
	}

	db.Handlers.Send.Clear() // mock sending
	db.Handlers.Unmarshal.Clear()
	db.Handlers.UnmarshalMeta.Clear()
	db.Handlers.ValidateResponse.Clear()
	db.Handlers.Unmarshal.PushBack(func(r *aws.Request) {
		r.Data = resps[reqNum]
		reqNum++
	})

	params := &dynamodb.ListTablesInput{Limit: aws.Long(2)}
	err := db.ListTablesPages(params, func(p *dynamodb.ListTablesOutput, last bool) bool {
		numPages++
		if numPages == 2 {
			return false
		}
		if last {
			if gotToEnd {
				assert.Fail(t, "last=true happened twice")
			}
			gotToEnd = true
		}
		return true
	})

	assert.Equal(t, 2, numPages)
	assert.False(t, gotToEnd)
	assert.Nil(t, err)
}