func BenchmarkCodegenIterator(b *testing.B) {
reqNum := 0
db := benchDb()
db.Handlers.Unmarshal.PushBack(func(r *request.Request) {
r.Data = benchResps[reqNum]
reqNum++
})
input := &dynamodb.ListTablesInput{Limit: aws.Int64(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
})
}
}
// 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.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 = DefaultDuration
}
roleOutput, err := p.Client.AssumeRole(&sts.AssumeRoleInput{
DurationSeconds: aws.Int64(int64(p.Duration / time.Second)),
RoleArn: aws.String(p.RoleARN),
RoleSessionName: aws.String(p.RoleSessionName),
ExternalId: p.ExternalID,
})
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
}
// Use DynamoDB methods for simplicity
func TestPaginationEachPage(t *testing.T) {
db := dynamodb.New(unit.Session)
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 *request.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 *request.Request) {
r.Data = resps[reqNum]
reqNum++
})
params := &dynamodb.ListTablesInput{Limit: aws.Int64(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)
}
func ExampleECR_UploadLayerPart() {
svc := ecr.New(session.New())
params := &ecr.UploadLayerPartInput{
LayerPartBlob: []byte("PAYLOAD"), // Required
PartFirstByte: aws.Int64(1), // Required
PartLastByte: aws.Int64(1), // Required
RepositoryName: aws.String("RepositoryName"), // Required
UploadId: aws.String("UploadId"), // Required
RegistryId: aws.String("RegistryId"),
}
resp, err := svc.UploadLayerPart(params)
if err != nil {
// Print the error, cast err to awserr.Error to get the Code and
// Message from an error.
fmt.Println(err.Error())
return
}
// Pretty-print the response data.
fmt.Println(resp)
}
func BenchmarkEachPageIterator(b *testing.B) {
reqNum := 0
db := benchDb()
db.Handlers.Unmarshal.PushBack(func(r *request.Request) {
r.Data = benchResps[reqNum]
reqNum++
})
input := &dynamodb.ListTablesInput{Limit: aws.Int64(2)}
for i := 0; i < b.N; i++ {
reqNum = 0
req, _ := db.ListTablesRequest(input)
req.EachPage(func(p interface{}, last bool) bool {
return true
})
}
}
func ExampleECR_ListImages() {
svc := ecr.New(session.New())
params := &ecr.ListImagesInput{
RepositoryName: aws.String("RepositoryName"), // Required
MaxResults: aws.Int64(1),
NextToken: aws.String("NextToken"),
RegistryId: aws.String("RegistryId"),
}
resp, err := svc.ListImages(params)
if err != nil {
// Print the error, cast err to awserr.Error to get the Code and
// Message from an error.
fmt.Println(err.Error())
return
}
// Pretty-print the response data.
fmt.Println(resp)
}
// Use DynamoDB methods for simplicity
func TestPaginationEarlyExit(t *testing.T) {
db := dynamodb.New(unit.Session)
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 *request.Request) {
r.Data = resps[reqNum]
reqNum++
})
params := &dynamodb.ListTablesInput{Limit: aws.Int64(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)
}
// Use DynamoDB methods for simplicity
func TestPaginationQueryPage(t *testing.T) {
db := dynamodb.New(unit.Session)
tokens, pages, numPages, gotToEnd := []map[string]*dynamodb.AttributeValue{}, []map[string]*dynamodb.AttributeValue{}, 0, false
reqNum := 0
resps := []*dynamodb.QueryOutput{
{
LastEvaluatedKey: map[string]*dynamodb.AttributeValue{"key": {S: aws.String("key1")}},
Count: aws.Int64(1),
Items: []map[string]*dynamodb.AttributeValue{
{
"key": {S: aws.String("key1")},
},
},
},
{
LastEvaluatedKey: map[string]*dynamodb.AttributeValue{"key": {S: aws.String("key2")}},
Count: aws.Int64(1),
Items: []map[string]*dynamodb.AttributeValue{
{
"key": {S: aws.String("key2")},
},
},
},
{
LastEvaluatedKey: map[string]*dynamodb.AttributeValue{},
Count: aws.Int64(1),
Items: []map[string]*dynamodb.AttributeValue{
{
"key": {S: aws.String("key3")},
},
},
},
}
db.Handlers.Send.Clear() // mock sending
db.Handlers.Unmarshal.Clear()
db.Handlers.UnmarshalMeta.Clear()
db.Handlers.ValidateResponse.Clear()
db.Handlers.Build.PushBack(func(r *request.Request) {
in := r.Params.(*dynamodb.QueryInput)
if in == nil {
tokens = append(tokens, nil)
} else if len(in.ExclusiveStartKey) != 0 {
tokens = append(tokens, in.ExclusiveStartKey)
}
})
db.Handlers.Unmarshal.PushBack(func(r *request.Request) {
r.Data = resps[reqNum]
reqNum++
})
params := &dynamodb.QueryInput{
Limit: aws.Int64(2),
TableName: aws.String("tablename"),
}
err := db.QueryPages(params, func(p *dynamodb.QueryOutput, last bool) bool {
numPages++
for _, item := range p.Items {
pages = append(pages, item)
}
if last {
if gotToEnd {
assert.Fail(t, "last=true happened twice")
}
gotToEnd = true
}
return true
})
assert.Nil(t, err)
assert.Equal(t,
[]map[string]*dynamodb.AttributeValue{
{"key": {S: aws.String("key1")}},
{"key": {S: aws.String("key2")}},
}, tokens)
assert.Equal(t,
[]map[string]*dynamodb.AttributeValue{
{"key": {S: aws.String("key1")}},
{"key": {S: aws.String("key2")}},
{"key": {S: aws.String("key3")}},
}, pages)
assert.Equal(t, 3, numPages)
assert.True(t, gotToEnd)
assert.Nil(t, params.ExclusiveStartKey)
}