// Code generated by software.amazon.smithy.rust.codegen.smithy-rs. DO NOT EDIT.
/// Paginator for [`ListAttendees`](crate::operation::ListAttendees)
pub struct ListAttendeesPaginator {
handle: std::sync::Arc<crate::client::Handle>,
builder: crate::input::list_attendees_input::Builder,
stop_on_duplicate_token: bool,
}
impl ListAttendeesPaginator {
/// Create a new paginator-wrapper
pub(crate) fn new(
handle: std::sync::Arc<crate::client::Handle>,
builder: crate::input::list_attendees_input::Builder,
) -> Self {
Self {
handle,
builder,
stop_on_duplicate_token: true,
}
}
/// Set the page size
///
/// _Note: this method will override any previously set value for `max_results`_
pub fn page_size(mut self, limit: i32) -> Self {
self.builder.max_results = Some(limit);
self
}
/// Stop paginating when the service returns the same pagination token twice in a row.
///
/// Defaults to true.
///
/// For certain operations, it may be useful to continue on duplicate token. For example,
/// if an operation is for tailing a log file in real-time, then continuing may be desired.
/// This option can be set to `false` to accommodate these use cases.
pub fn stop_on_duplicate_token(mut self, stop_on_duplicate_token: bool) -> Self {
self.stop_on_duplicate_token = stop_on_duplicate_token;
self
}
/// Create the pagination stream
///
/// _Note:_ No requests will be dispatched until the stream is used (eg. with [`.next().await`](tokio_stream::StreamExt::next)).
pub fn send(
self,
) -> impl tokio_stream::Stream<
Item = std::result::Result<
crate::output::ListAttendeesOutput,
aws_smithy_http::result::SdkError<crate::error::ListAttendeesError>,
>,
> + Unpin {
// Move individual fields out of self for the borrow checker
let builder = self.builder;
let handle = self.handle;
aws_smithy_async::future::fn_stream::FnStream::new(move |tx| {
Box::pin(async move {
// Build the input for the first time. If required fields are missing, this is where we'll produce an early error.
let mut input = match builder
.build()
.map_err(aws_smithy_http::result::SdkError::construction_failure)
{
Ok(input) => input,
Err(e) => {
let _ = tx.send(Err(e)).await;
return;
}
};
loop {
let op = match input
.make_operation(&handle.conf)
.await
.map_err(aws_smithy_http::result::SdkError::construction_failure)
{
Ok(op) => op,
Err(e) => {
let _ = tx.send(Err(e)).await;
return;
}
};
let resp = handle.client.call(op).await;
// If the input member is None or it was an error
let done = match resp {
Ok(ref resp) => {
let new_token = crate::lens::reflens_structure_crate_output_list_attendees_output_next_token(resp);
let is_empty = new_token.map(|token| token.is_empty()).unwrap_or(true);
if !is_empty
&& new_token == input.next_token.as_ref()
&& self.stop_on_duplicate_token
{
true
} else {
input.next_token = new_token.cloned();
is_empty
}
}
Err(_) => true,
};
if tx.send(resp).await.is_err() {
// receiving end was dropped
return;
}
if done {
return;
}
}
})
})
}
}