aws_sdk_ec2/operation/describe_vpc_endpoint_service_configurations/
paginator.rs

1// Code generated by software.amazon.smithy.rust.codegen.smithy-rs. DO NOT EDIT.
2/// Paginator for [`DescribeVpcEndpointServiceConfigurations`](crate::operation::describe_vpc_endpoint_service_configurations::DescribeVpcEndpointServiceConfigurations)
3pub struct DescribeVpcEndpointServiceConfigurationsPaginator {
4    handle: std::sync::Arc<crate::client::Handle>,
5    builder: crate::operation::describe_vpc_endpoint_service_configurations::builders::DescribeVpcEndpointServiceConfigurationsInputBuilder,
6    stop_on_duplicate_token: bool,
7}
8
9impl DescribeVpcEndpointServiceConfigurationsPaginator {
10    /// Create a new paginator-wrapper
11    pub(crate) fn new(
12        handle: std::sync::Arc<crate::client::Handle>,
13        builder: crate::operation::describe_vpc_endpoint_service_configurations::builders::DescribeVpcEndpointServiceConfigurationsInputBuilder,
14    ) -> Self {
15        Self {
16            handle,
17            builder,
18            stop_on_duplicate_token: true,
19        }
20    }
21
22    /// Set the page size
23    ///
24    /// _Note: this method will override any previously set value for `max_results`_
25    pub fn page_size(mut self, limit: i32) -> Self {
26        self.builder.max_results = ::std::option::Option::Some(limit);
27        self
28    }
29
30    /// Create a flattened paginator
31    ///
32    /// This paginator automatically flattens results using `service_configurations`. Queries to the underlying service
33    /// are dispatched lazily.
34    pub fn items(
35        self,
36    ) -> crate::operation::describe_vpc_endpoint_service_configurations::paginator::DescribeVpcEndpointServiceConfigurationsPaginatorItems {
37        crate::operation::describe_vpc_endpoint_service_configurations::paginator::DescribeVpcEndpointServiceConfigurationsPaginatorItems(self)
38    }
39
40    /// Stop paginating when the service returns the same pagination token twice in a row.
41    ///
42    /// Defaults to true.
43    ///
44    /// For certain operations, it may be useful to continue on duplicate token. For example,
45    /// if an operation is for tailing a log file in real-time, then continuing may be desired.
46    /// This option can be set to `false` to accommodate these use cases.
47    pub fn stop_on_duplicate_token(mut self, stop_on_duplicate_token: bool) -> Self {
48        self.stop_on_duplicate_token = stop_on_duplicate_token;
49        self
50    }
51
52    /// Create the pagination stream
53    ///
54    /// _Note:_ No requests will be dispatched until the stream is used
55    /// (e.g. with the [`.next().await`](aws_smithy_async::future::pagination_stream::PaginationStream::next) method).
56    pub fn send(
57        self,
58    ) -> ::aws_smithy_async::future::pagination_stream::PaginationStream<
59        ::std::result::Result<
60            crate::operation::describe_vpc_endpoint_service_configurations::DescribeVpcEndpointServiceConfigurationsOutput,
61            ::aws_smithy_runtime_api::client::result::SdkError<
62                crate::operation::describe_vpc_endpoint_service_configurations::DescribeVpcEndpointServiceConfigurationsError,
63                ::aws_smithy_runtime_api::client::orchestrator::HttpResponse,
64            >,
65        >,
66    > {
67        // Move individual fields out of self for the borrow checker
68        let builder = self.builder;
69        let handle = self.handle;
70        let runtime_plugins =
71            crate::operation::describe_vpc_endpoint_service_configurations::DescribeVpcEndpointServiceConfigurations::operation_runtime_plugins(
72                handle.runtime_plugins.clone(),
73                &handle.conf,
74                ::std::option::Option::None,
75            )
76            .with_operation_plugin(crate::sdk_feature_tracker::paginator::PaginatorFeatureTrackerRuntimePlugin::new());
77        ::aws_smithy_async::future::pagination_stream::PaginationStream::new(::aws_smithy_async::future::pagination_stream::fn_stream::FnStream::new(
78            move |tx| {
79                ::std::boxed::Box::pin(async move {
80                    // Build the input for the first time. If required fields are missing, this is where we'll produce an early error.
81                    let mut input = match builder
82                        .build()
83                        .map_err(::aws_smithy_runtime_api::client::result::SdkError::construction_failure)
84                    {
85                        ::std::result::Result::Ok(input) => input,
86                        ::std::result::Result::Err(e) => {
87                            let _ = tx.send(::std::result::Result::Err(e)).await;
88                            return;
89                        }
90                    };
91                    loop {
92                        let resp =
93                            crate::operation::describe_vpc_endpoint_service_configurations::DescribeVpcEndpointServiceConfigurations::orchestrate(
94                                &runtime_plugins,
95                                input.clone(),
96                            )
97                            .await;
98                        // If the input member is None or it was an error
99                        let done = match resp {
100                            ::std::result::Result::Ok(ref resp) => {
101                                let new_token = crate::lens::reflens_describe_vpc_endpoint_service_configurations_output_output_next_token(resp);
102                                // Pagination is exhausted when the next token is an empty string
103                                let is_empty = new_token.map(|token| token.is_empty()).unwrap_or(true);
104                                if !is_empty && new_token == input.next_token.as_ref() && self.stop_on_duplicate_token {
105                                    true
106                                } else {
107                                    input.next_token = new_token.cloned();
108                                    is_empty
109                                }
110                            }
111                            ::std::result::Result::Err(_) => true,
112                        };
113                        if tx.send(resp).await.is_err() {
114                            // receiving end was dropped
115                            return;
116                        }
117                        if done {
118                            return;
119                        }
120                    }
121                })
122            },
123        ))
124    }
125}
126
127/// Flattened paginator for `DescribeVpcEndpointServiceConfigurationsPaginator`
128///
129/// This is created with [`.items()`](DescribeVpcEndpointServiceConfigurationsPaginator::items)
130pub struct DescribeVpcEndpointServiceConfigurationsPaginatorItems(DescribeVpcEndpointServiceConfigurationsPaginator);
131
132impl DescribeVpcEndpointServiceConfigurationsPaginatorItems {
133    /// Create the pagination stream
134    ///
135    /// _Note_: No requests will be dispatched until the stream is used
136    /// (e.g. with the [`.next().await`](aws_smithy_async::future::pagination_stream::PaginationStream::next) method).
137    ///
138    /// To read the entirety of the paginator, use [`.collect::<Result<Vec<_>, _>()`](aws_smithy_async::future::pagination_stream::PaginationStream::collect).
139    pub fn send(
140        self,
141    ) -> ::aws_smithy_async::future::pagination_stream::PaginationStream<
142        ::std::result::Result<
143            crate::types::ServiceConfiguration,
144            ::aws_smithy_runtime_api::client::result::SdkError<
145                crate::operation::describe_vpc_endpoint_service_configurations::DescribeVpcEndpointServiceConfigurationsError,
146                ::aws_smithy_runtime_api::client::orchestrator::HttpResponse,
147            >,
148        >,
149    > {
150        ::aws_smithy_async::future::pagination_stream::TryFlatMap::new(self.0.send()).flat_map(|page| {
151            crate::lens::lens_describe_vpc_endpoint_service_configurations_output_output_service_configurations(page)
152                .unwrap_or_default()
153                .into_iter()
154        })
155    }
156}
aws_sdk_ec2/operation/describe_vpc_endpoint_service_configurations/paginator.rs

aws_sdk_ec2/operation/describe_vpc_endpoint_service_configurations/
paginator.rs
