{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE DuplicateRecordFields #-}
{-# LANGUAGE NamedFieldPuns #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE StrictData #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE NoImplicitPrelude #-}
{-# OPTIONS_GHC -fno-warn-unused-binds #-}
{-# OPTIONS_GHC -fno-warn-unused-imports #-}
{-# OPTIONS_GHC -fno-warn-unused-matches #-}
module Amazonka.Kinesis.ListStreams
(
ListStreams (..),
newListStreams,
listStreams_exclusiveStartStreamName,
listStreams_limit,
listStreams_nextToken,
ListStreamsResponse (..),
newListStreamsResponse,
listStreamsResponse_nextToken,
listStreamsResponse_streamSummaries,
listStreamsResponse_httpStatus,
listStreamsResponse_streamNames,
listStreamsResponse_hasMoreStreams,
)
where
import qualified Amazonka.Core as Core
import qualified Amazonka.Core.Lens.Internal as Lens
import qualified Amazonka.Data as Data
import Amazonka.Kinesis.Types
import qualified Amazonka.Prelude as Prelude
import qualified Amazonka.Request as Request
import qualified Amazonka.Response as Response
data ListStreams = ListStreams'
{
ListStreams -> Maybe Text
exclusiveStartStreamName :: Prelude.Maybe Prelude.Text,
ListStreams -> Maybe Natural
limit :: Prelude.Maybe Prelude.Natural,
ListStreams -> Maybe Text
nextToken :: Prelude.Maybe Prelude.Text
}
deriving (ListStreams -> ListStreams -> Bool
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: ListStreams -> ListStreams -> Bool
$c/= :: ListStreams -> ListStreams -> Bool
== :: ListStreams -> ListStreams -> Bool
$c== :: ListStreams -> ListStreams -> Bool
Prelude.Eq, ReadPrec [ListStreams]
ReadPrec ListStreams
Int -> ReadS ListStreams
ReadS [ListStreams]
forall a.
(Int -> ReadS a)
-> ReadS [a] -> ReadPrec a -> ReadPrec [a] -> Read a
readListPrec :: ReadPrec [ListStreams]
$creadListPrec :: ReadPrec [ListStreams]
readPrec :: ReadPrec ListStreams
$creadPrec :: ReadPrec ListStreams
readList :: ReadS [ListStreams]
$creadList :: ReadS [ListStreams]
readsPrec :: Int -> ReadS ListStreams
$creadsPrec :: Int -> ReadS ListStreams
Prelude.Read, Int -> ListStreams -> ShowS
[ListStreams] -> ShowS
ListStreams -> String
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [ListStreams] -> ShowS
$cshowList :: [ListStreams] -> ShowS
show :: ListStreams -> String
$cshow :: ListStreams -> String
showsPrec :: Int -> ListStreams -> ShowS
$cshowsPrec :: Int -> ListStreams -> ShowS
Prelude.Show, forall x. Rep ListStreams x -> ListStreams
forall x. ListStreams -> Rep ListStreams x
forall a.
(forall x. a -> Rep a x) -> (forall x. Rep a x -> a) -> Generic a
$cto :: forall x. Rep ListStreams x -> ListStreams
$cfrom :: forall x. ListStreams -> Rep ListStreams x
Prelude.Generic)
newListStreams ::
ListStreams
newListStreams :: ListStreams
newListStreams =
ListStreams'
{ $sel:exclusiveStartStreamName:ListStreams' :: Maybe Text
exclusiveStartStreamName =
forall a. Maybe a
Prelude.Nothing,
$sel:limit:ListStreams' :: Maybe Natural
limit = forall a. Maybe a
Prelude.Nothing,
$sel:nextToken:ListStreams' :: Maybe Text
nextToken = forall a. Maybe a
Prelude.Nothing
}
listStreams_exclusiveStartStreamName :: Lens.Lens' ListStreams (Prelude.Maybe Prelude.Text)
listStreams_exclusiveStartStreamName :: Lens' ListStreams (Maybe Text)
listStreams_exclusiveStartStreamName = forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\ListStreams' {Maybe Text
exclusiveStartStreamName :: Maybe Text
$sel:exclusiveStartStreamName:ListStreams' :: ListStreams -> Maybe Text
exclusiveStartStreamName} -> Maybe Text
exclusiveStartStreamName) (\s :: ListStreams
s@ListStreams' {} Maybe Text
a -> ListStreams
s {$sel:exclusiveStartStreamName:ListStreams' :: Maybe Text
exclusiveStartStreamName = Maybe Text
a} :: ListStreams)
listStreams_limit :: Lens.Lens' ListStreams (Prelude.Maybe Prelude.Natural)
listStreams_limit :: Lens' ListStreams (Maybe Natural)
listStreams_limit = forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\ListStreams' {Maybe Natural
limit :: Maybe Natural
$sel:limit:ListStreams' :: ListStreams -> Maybe Natural
limit} -> Maybe Natural
limit) (\s :: ListStreams
s@ListStreams' {} Maybe Natural
a -> ListStreams
s {$sel:limit:ListStreams' :: Maybe Natural
limit = Maybe Natural
a} :: ListStreams)
listStreams_nextToken :: Lens.Lens' ListStreams (Prelude.Maybe Prelude.Text)
listStreams_nextToken :: Lens' ListStreams (Maybe Text)
listStreams_nextToken = forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\ListStreams' {Maybe Text
nextToken :: Maybe Text
$sel:nextToken:ListStreams' :: ListStreams -> Maybe Text
nextToken} -> Maybe Text
nextToken) (\s :: ListStreams
s@ListStreams' {} Maybe Text
a -> ListStreams
s {$sel:nextToken:ListStreams' :: Maybe Text
nextToken = Maybe Text
a} :: ListStreams)
instance Core.AWSPager ListStreams where
page :: ListStreams -> AWSResponse ListStreams -> Maybe ListStreams
page ListStreams
rq AWSResponse ListStreams
rs
| forall a. AWSTruncated a => a -> Bool
Core.stop
(AWSResponse ListStreams
rs forall s a. s -> Getting a s a -> a
Lens.^. Lens' ListStreamsResponse Bool
listStreamsResponse_hasMoreStreams) =
forall a. Maybe a
Prelude.Nothing
| forall a. Maybe a -> Bool
Prelude.isNothing
( AWSResponse ListStreams
rs
forall s a. s -> Getting (First a) s a -> Maybe a
Lens.^? Lens' ListStreamsResponse (Maybe Text)
listStreamsResponse_nextToken
forall b c a. (b -> c) -> (a -> b) -> a -> c
Prelude.. forall a b. Prism (Maybe a) (Maybe b) a b
Lens._Just
) =
forall a. Maybe a
Prelude.Nothing
| Bool
Prelude.otherwise =
forall a. a -> Maybe a
Prelude.Just
forall a b. (a -> b) -> a -> b
Prelude.$ ListStreams
rq
forall a b. a -> (a -> b) -> b
Prelude.& Lens' ListStreams (Maybe Text)
listStreams_nextToken
forall s t a b. ASetter s t a b -> b -> s -> t
Lens..~ AWSResponse ListStreams
rs
forall s a. s -> Getting (First a) s a -> Maybe a
Lens.^? Lens' ListStreamsResponse (Maybe Text)
listStreamsResponse_nextToken
forall b c a. (b -> c) -> (a -> b) -> a -> c
Prelude.. forall a b. Prism (Maybe a) (Maybe b) a b
Lens._Just
instance Core.AWSRequest ListStreams where
type AWSResponse ListStreams = ListStreamsResponse
request :: (Service -> Service) -> ListStreams -> Request ListStreams
request Service -> Service
overrides =
forall a. (ToRequest a, ToJSON a) => Service -> a -> Request a
Request.postJSON (Service -> Service
overrides Service
defaultService)
response :: forall (m :: * -> *).
MonadResource m =>
(ByteStringLazy -> IO ByteStringLazy)
-> Service
-> Proxy ListStreams
-> ClientResponse ClientBody
-> m (Either Error (ClientResponse (AWSResponse ListStreams)))
response =
forall (m :: * -> *) a.
MonadResource m =>
(Int -> ResponseHeaders -> Object -> Either String (AWSResponse a))
-> (ByteStringLazy -> IO ByteStringLazy)
-> Service
-> Proxy a
-> ClientResponse ClientBody
-> m (Either Error (ClientResponse (AWSResponse a)))
Response.receiveJSON
( \Int
s ResponseHeaders
h Object
x ->
Maybe Text
-> Maybe [StreamSummary]
-> Int
-> [Text]
-> Bool
-> ListStreamsResponse
ListStreamsResponse'
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
Prelude.<$> (Object
x forall a. FromJSON a => Object -> Key -> Either String (Maybe a)
Data..?> Key
"NextToken")
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
Prelude.<*> ( Object
x
forall a. FromJSON a => Object -> Key -> Either String (Maybe a)
Data..?> Key
"StreamSummaries"
forall (f :: * -> *) a. Functor f => f (Maybe a) -> a -> f a
Core..!@ forall a. Monoid a => a
Prelude.mempty
)
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
Prelude.<*> (forall (f :: * -> *) a. Applicative f => a -> f a
Prelude.pure (forall a. Enum a => a -> Int
Prelude.fromEnum Int
s))
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
Prelude.<*> (Object
x forall a. FromJSON a => Object -> Key -> Either String (Maybe a)
Data..?> Key
"StreamNames" forall (f :: * -> *) a. Functor f => f (Maybe a) -> a -> f a
Core..!@ forall a. Monoid a => a
Prelude.mempty)
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
Prelude.<*> (Object
x forall a. FromJSON a => Object -> Key -> Either String a
Data..:> Key
"HasMoreStreams")
)
instance Prelude.Hashable ListStreams where
hashWithSalt :: Int -> ListStreams -> Int
hashWithSalt Int
_salt ListStreams' {Maybe Natural
Maybe Text
nextToken :: Maybe Text
limit :: Maybe Natural
exclusiveStartStreamName :: Maybe Text
$sel:nextToken:ListStreams' :: ListStreams -> Maybe Text
$sel:limit:ListStreams' :: ListStreams -> Maybe Natural
$sel:exclusiveStartStreamName:ListStreams' :: ListStreams -> Maybe Text
..} =
Int
_salt
forall a. Hashable a => Int -> a -> Int
`Prelude.hashWithSalt` Maybe Text
exclusiveStartStreamName
forall a. Hashable a => Int -> a -> Int
`Prelude.hashWithSalt` Maybe Natural
limit
forall a. Hashable a => Int -> a -> Int
`Prelude.hashWithSalt` Maybe Text
nextToken
instance Prelude.NFData ListStreams where
rnf :: ListStreams -> ()
rnf ListStreams' {Maybe Natural
Maybe Text
nextToken :: Maybe Text
limit :: Maybe Natural
exclusiveStartStreamName :: Maybe Text
$sel:nextToken:ListStreams' :: ListStreams -> Maybe Text
$sel:limit:ListStreams' :: ListStreams -> Maybe Natural
$sel:exclusiveStartStreamName:ListStreams' :: ListStreams -> Maybe Text
..} =
forall a. NFData a => a -> ()
Prelude.rnf Maybe Text
exclusiveStartStreamName
seq :: forall a b. a -> b -> b
`Prelude.seq` forall a. NFData a => a -> ()
Prelude.rnf Maybe Natural
limit
seq :: forall a b. a -> b -> b
`Prelude.seq` forall a. NFData a => a -> ()
Prelude.rnf Maybe Text
nextToken
instance Data.ToHeaders ListStreams where
toHeaders :: ListStreams -> ResponseHeaders
toHeaders =
forall a b. a -> b -> a
Prelude.const
( forall a. Monoid a => [a] -> a
Prelude.mconcat
[ HeaderName
"X-Amz-Target"
forall a. ToHeader a => HeaderName -> a -> ResponseHeaders
Data.=# ( ByteString
"Kinesis_20131202.ListStreams" ::
Prelude.ByteString
),
HeaderName
"Content-Type"
forall a. ToHeader a => HeaderName -> a -> ResponseHeaders
Data.=# ( ByteString
"application/x-amz-json-1.1" ::
Prelude.ByteString
)
]
)
instance Data.ToJSON ListStreams where
toJSON :: ListStreams -> Value
toJSON ListStreams' {Maybe Natural
Maybe Text
nextToken :: Maybe Text
limit :: Maybe Natural
exclusiveStartStreamName :: Maybe Text
$sel:nextToken:ListStreams' :: ListStreams -> Maybe Text
$sel:limit:ListStreams' :: ListStreams -> Maybe Natural
$sel:exclusiveStartStreamName:ListStreams' :: ListStreams -> Maybe Text
..} =
[Pair] -> Value
Data.object
( forall a. [Maybe a] -> [a]
Prelude.catMaybes
[ (Key
"ExclusiveStartStreamName" forall kv v. (KeyValue kv, ToJSON v) => Key -> v -> kv
Data..=)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
Prelude.<$> Maybe Text
exclusiveStartStreamName,
(Key
"Limit" forall kv v. (KeyValue kv, ToJSON v) => Key -> v -> kv
Data..=) forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
Prelude.<$> Maybe Natural
limit,
(Key
"NextToken" forall kv v. (KeyValue kv, ToJSON v) => Key -> v -> kv
Data..=) forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
Prelude.<$> Maybe Text
nextToken
]
)
instance Data.ToPath ListStreams where
toPath :: ListStreams -> ByteString
toPath = forall a b. a -> b -> a
Prelude.const ByteString
"/"
instance Data.ToQuery ListStreams where
toQuery :: ListStreams -> QueryString
toQuery = forall a b. a -> b -> a
Prelude.const forall a. Monoid a => a
Prelude.mempty
data ListStreamsResponse = ListStreamsResponse'
{ ListStreamsResponse -> Maybe Text
nextToken :: Prelude.Maybe Prelude.Text,
ListStreamsResponse -> Maybe [StreamSummary]
streamSummaries :: Prelude.Maybe [StreamSummary],
ListStreamsResponse -> Int
httpStatus :: Prelude.Int,
ListStreamsResponse -> [Text]
streamNames :: [Prelude.Text],
ListStreamsResponse -> Bool
hasMoreStreams :: Prelude.Bool
}
deriving (ListStreamsResponse -> ListStreamsResponse -> Bool
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: ListStreamsResponse -> ListStreamsResponse -> Bool
$c/= :: ListStreamsResponse -> ListStreamsResponse -> Bool
== :: ListStreamsResponse -> ListStreamsResponse -> Bool
$c== :: ListStreamsResponse -> ListStreamsResponse -> Bool
Prelude.Eq, ReadPrec [ListStreamsResponse]
ReadPrec ListStreamsResponse
Int -> ReadS ListStreamsResponse
ReadS [ListStreamsResponse]
forall a.
(Int -> ReadS a)
-> ReadS [a] -> ReadPrec a -> ReadPrec [a] -> Read a
readListPrec :: ReadPrec [ListStreamsResponse]
$creadListPrec :: ReadPrec [ListStreamsResponse]
readPrec :: ReadPrec ListStreamsResponse
$creadPrec :: ReadPrec ListStreamsResponse
readList :: ReadS [ListStreamsResponse]
$creadList :: ReadS [ListStreamsResponse]
readsPrec :: Int -> ReadS ListStreamsResponse
$creadsPrec :: Int -> ReadS ListStreamsResponse
Prelude.Read, Int -> ListStreamsResponse -> ShowS
[ListStreamsResponse] -> ShowS
ListStreamsResponse -> String
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [ListStreamsResponse] -> ShowS
$cshowList :: [ListStreamsResponse] -> ShowS
show :: ListStreamsResponse -> String
$cshow :: ListStreamsResponse -> String
showsPrec :: Int -> ListStreamsResponse -> ShowS
$cshowsPrec :: Int -> ListStreamsResponse -> ShowS
Prelude.Show, forall x. Rep ListStreamsResponse x -> ListStreamsResponse
forall x. ListStreamsResponse -> Rep ListStreamsResponse x
forall a.
(forall x. a -> Rep a x) -> (forall x. Rep a x -> a) -> Generic a
$cto :: forall x. Rep ListStreamsResponse x -> ListStreamsResponse
$cfrom :: forall x. ListStreamsResponse -> Rep ListStreamsResponse x
Prelude.Generic)
newListStreamsResponse ::
Prelude.Int ->
Prelude.Bool ->
ListStreamsResponse
newListStreamsResponse :: Int -> Bool -> ListStreamsResponse
newListStreamsResponse Int
pHttpStatus_ Bool
pHasMoreStreams_ =
ListStreamsResponse'
{ $sel:nextToken:ListStreamsResponse' :: Maybe Text
nextToken = forall a. Maybe a
Prelude.Nothing,
$sel:streamSummaries:ListStreamsResponse' :: Maybe [StreamSummary]
streamSummaries = forall a. Maybe a
Prelude.Nothing,
$sel:httpStatus:ListStreamsResponse' :: Int
httpStatus = Int
pHttpStatus_,
$sel:streamNames:ListStreamsResponse' :: [Text]
streamNames = forall a. Monoid a => a
Prelude.mempty,
$sel:hasMoreStreams:ListStreamsResponse' :: Bool
hasMoreStreams = Bool
pHasMoreStreams_
}
listStreamsResponse_nextToken :: Lens.Lens' ListStreamsResponse (Prelude.Maybe Prelude.Text)
listStreamsResponse_nextToken :: Lens' ListStreamsResponse (Maybe Text)
listStreamsResponse_nextToken = forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\ListStreamsResponse' {Maybe Text
nextToken :: Maybe Text
$sel:nextToken:ListStreamsResponse' :: ListStreamsResponse -> Maybe Text
nextToken} -> Maybe Text
nextToken) (\s :: ListStreamsResponse
s@ListStreamsResponse' {} Maybe Text
a -> ListStreamsResponse
s {$sel:nextToken:ListStreamsResponse' :: Maybe Text
nextToken = Maybe Text
a} :: ListStreamsResponse)
listStreamsResponse_streamSummaries :: Lens.Lens' ListStreamsResponse (Prelude.Maybe [StreamSummary])
listStreamsResponse_streamSummaries :: Lens' ListStreamsResponse (Maybe [StreamSummary])
listStreamsResponse_streamSummaries = forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\ListStreamsResponse' {Maybe [StreamSummary]
streamSummaries :: Maybe [StreamSummary]
$sel:streamSummaries:ListStreamsResponse' :: ListStreamsResponse -> Maybe [StreamSummary]
streamSummaries} -> Maybe [StreamSummary]
streamSummaries) (\s :: ListStreamsResponse
s@ListStreamsResponse' {} Maybe [StreamSummary]
a -> ListStreamsResponse
s {$sel:streamSummaries:ListStreamsResponse' :: Maybe [StreamSummary]
streamSummaries = Maybe [StreamSummary]
a} :: ListStreamsResponse) forall b c a. (b -> c) -> (a -> b) -> a -> c
Prelude.. forall (f :: * -> *) (g :: * -> *) s t a b.
(Functor f, Functor g) =>
AnIso s t a b -> Iso (f s) (g t) (f a) (g b)
Lens.mapping forall s t a b. (Coercible s a, Coercible t b) => Iso s t a b
Lens.coerced
listStreamsResponse_httpStatus :: Lens.Lens' ListStreamsResponse Prelude.Int
listStreamsResponse_httpStatus :: Lens' ListStreamsResponse Int
listStreamsResponse_httpStatus = forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\ListStreamsResponse' {Int
httpStatus :: Int
$sel:httpStatus:ListStreamsResponse' :: ListStreamsResponse -> Int
httpStatus} -> Int
httpStatus) (\s :: ListStreamsResponse
s@ListStreamsResponse' {} Int
a -> ListStreamsResponse
s {$sel:httpStatus:ListStreamsResponse' :: Int
httpStatus = Int
a} :: ListStreamsResponse)
listStreamsResponse_streamNames :: Lens.Lens' ListStreamsResponse [Prelude.Text]
listStreamsResponse_streamNames :: Lens' ListStreamsResponse [Text]
listStreamsResponse_streamNames = forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\ListStreamsResponse' {[Text]
streamNames :: [Text]
$sel:streamNames:ListStreamsResponse' :: ListStreamsResponse -> [Text]
streamNames} -> [Text]
streamNames) (\s :: ListStreamsResponse
s@ListStreamsResponse' {} [Text]
a -> ListStreamsResponse
s {$sel:streamNames:ListStreamsResponse' :: [Text]
streamNames = [Text]
a} :: ListStreamsResponse) forall b c a. (b -> c) -> (a -> b) -> a -> c
Prelude.. forall s t a b. (Coercible s a, Coercible t b) => Iso s t a b
Lens.coerced
listStreamsResponse_hasMoreStreams :: Lens.Lens' ListStreamsResponse Prelude.Bool
listStreamsResponse_hasMoreStreams :: Lens' ListStreamsResponse Bool
listStreamsResponse_hasMoreStreams = forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\ListStreamsResponse' {Bool
hasMoreStreams :: Bool
$sel:hasMoreStreams:ListStreamsResponse' :: ListStreamsResponse -> Bool
hasMoreStreams} -> Bool
hasMoreStreams) (\s :: ListStreamsResponse
s@ListStreamsResponse' {} Bool
a -> ListStreamsResponse
s {$sel:hasMoreStreams:ListStreamsResponse' :: Bool
hasMoreStreams = Bool
a} :: ListStreamsResponse)
instance Prelude.NFData ListStreamsResponse where
rnf :: ListStreamsResponse -> ()
rnf ListStreamsResponse' {Bool
Int
[Text]
Maybe [StreamSummary]
Maybe Text
hasMoreStreams :: Bool
streamNames :: [Text]
httpStatus :: Int
streamSummaries :: Maybe [StreamSummary]
nextToken :: Maybe Text
$sel:hasMoreStreams:ListStreamsResponse' :: ListStreamsResponse -> Bool
$sel:streamNames:ListStreamsResponse' :: ListStreamsResponse -> [Text]
$sel:httpStatus:ListStreamsResponse' :: ListStreamsResponse -> Int
$sel:streamSummaries:ListStreamsResponse' :: ListStreamsResponse -> Maybe [StreamSummary]
$sel:nextToken:ListStreamsResponse' :: ListStreamsResponse -> Maybe Text
..} =
forall a. NFData a => a -> ()
Prelude.rnf Maybe Text
nextToken
seq :: forall a b. a -> b -> b
`Prelude.seq` forall a. NFData a => a -> ()
Prelude.rnf Maybe [StreamSummary]
streamSummaries
seq :: forall a b. a -> b -> b
`Prelude.seq` forall a. NFData a => a -> ()
Prelude.rnf Int
httpStatus
seq :: forall a b. a -> b -> b
`Prelude.seq` forall a. NFData a => a -> ()
Prelude.rnf [Text]
streamNames
seq :: forall a b. a -> b -> b
`Prelude.seq` forall a. NFData a => a -> ()
Prelude.rnf Bool
hasMoreStreams