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api_op_ListGateways.go
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api_op_ListGateways.go
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// Code generated by smithy-go-codegen DO NOT EDIT.
package storagegateway
import (
"context"
"fmt"
awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
"github.com/aws/aws-sdk-go-v2/service/storagegateway/types"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// Lists gateways owned by an Amazon Web Services account in an Amazon Web
// Services Region specified in the request. The returned list is ordered by
// gateway Amazon Resource Name (ARN).
//
// By default, the operation returns a maximum of 100 gateways. This operation
// supports pagination that allows you to optionally reduce the number of gateways
// returned in a response.
//
// If you have more gateways than are returned in a response (that is, the
// response returns only a truncated list of your gateways), the response contains
// a marker that you can specify in your next request to fetch the next page of
// gateways.
func (c *Client) ListGateways(ctx context.Context, params *ListGatewaysInput, optFns ...func(*Options)) (*ListGatewaysOutput, error) {
if params == nil {
params = &ListGatewaysInput{}
}
result, metadata, err := c.invokeOperation(ctx, "ListGateways", params, optFns, c.addOperationListGatewaysMiddlewares)
if err != nil {
return nil, err
}
out := result.(*ListGatewaysOutput)
out.ResultMetadata = metadata
return out, nil
}
// A JSON object containing zero or more of the following fields:
//
// # ListGatewaysInput$Limit
//
// ListGatewaysInput$Marker
type ListGatewaysInput struct {
// Specifies that the list of gateways returned be limited to the specified number
// of items.
Limit *int32
// An opaque string that indicates the position at which to begin the returned
// list of gateways.
Marker *string
noSmithyDocumentSerde
}
type ListGatewaysOutput struct {
// An array of GatewayInfo objects.
Gateways []types.GatewayInfo
// Use the marker in your next request to fetch the next set of gateways in the
// list. If there are no more gateways to list, this field does not appear in the
// response.
Marker *string
// Metadata pertaining to the operation's result.
ResultMetadata middleware.Metadata
noSmithyDocumentSerde
}
func (c *Client) addOperationListGatewaysMiddlewares(stack *middleware.Stack, options Options) (err error) {
if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
return err
}
err = stack.Serialize.Add(&awsAwsjson11_serializeOpListGateways{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpListGateways{}, middleware.After)
if err != nil {
return err
}
if err := addProtocolFinalizerMiddlewares(stack, options, "ListGateways"); err != nil {
return fmt.Errorf("add protocol finalizers: %v", err)
}
if err = addlegacyEndpointContextSetter(stack, options); err != nil {
return err
}
if err = addSetLoggerMiddleware(stack, options); err != nil {
return err
}
if err = addClientRequestID(stack); err != nil {
return err
}
if err = addComputeContentLength(stack); err != nil {
return err
}
if err = addResolveEndpointMiddleware(stack, options); err != nil {
return err
}
if err = addComputePayloadSHA256(stack); err != nil {
return err
}
if err = addRetry(stack, options); err != nil {
return err
}
if err = addRawResponseToMetadata(stack); err != nil {
return err
}
if err = addRecordResponseTiming(stack); err != nil {
return err
}
if err = addClientUserAgent(stack, options); err != nil {
return err
}
if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = addSetLegacyContextSigningOptionsMiddleware(stack); err != nil {
return err
}
if err = stack.Initialize.Add(newServiceMetadataMiddleware_opListGateways(options.Region), middleware.Before); err != nil {
return err
}
if err = addRecursionDetection(stack); err != nil {
return err
}
if err = addRequestIDRetrieverMiddleware(stack); err != nil {
return err
}
if err = addResponseErrorMiddleware(stack); err != nil {
return err
}
if err = addRequestResponseLogging(stack, options); err != nil {
return err
}
if err = addDisableHTTPSMiddleware(stack, options); err != nil {
return err
}
return nil
}
// ListGatewaysAPIClient is a client that implements the ListGateways operation.
type ListGatewaysAPIClient interface {
ListGateways(context.Context, *ListGatewaysInput, ...func(*Options)) (*ListGatewaysOutput, error)
}
var _ ListGatewaysAPIClient = (*Client)(nil)
// ListGatewaysPaginatorOptions is the paginator options for ListGateways
type ListGatewaysPaginatorOptions struct {
// Specifies that the list of gateways returned be limited to the specified number
// of items.
Limit int32
// Set to true if pagination should stop if the service returns a pagination token
// that matches the most recent token provided to the service.
StopOnDuplicateToken bool
}
// ListGatewaysPaginator is a paginator for ListGateways
type ListGatewaysPaginator struct {
options ListGatewaysPaginatorOptions
client ListGatewaysAPIClient
params *ListGatewaysInput
nextToken *string
firstPage bool
}
// NewListGatewaysPaginator returns a new ListGatewaysPaginator
func NewListGatewaysPaginator(client ListGatewaysAPIClient, params *ListGatewaysInput, optFns ...func(*ListGatewaysPaginatorOptions)) *ListGatewaysPaginator {
if params == nil {
params = &ListGatewaysInput{}
}
options := ListGatewaysPaginatorOptions{}
if params.Limit != nil {
options.Limit = *params.Limit
}
for _, fn := range optFns {
fn(&options)
}
return &ListGatewaysPaginator{
options: options,
client: client,
params: params,
firstPage: true,
nextToken: params.Marker,
}
}
// HasMorePages returns a boolean indicating whether more pages are available
func (p *ListGatewaysPaginator) HasMorePages() bool {
return p.firstPage || (p.nextToken != nil && len(*p.nextToken) != 0)
}
// NextPage retrieves the next ListGateways page.
func (p *ListGatewaysPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*ListGatewaysOutput, error) {
if !p.HasMorePages() {
return nil, fmt.Errorf("no more pages available")
}
params := *p.params
params.Marker = p.nextToken
var limit *int32
if p.options.Limit > 0 {
limit = &p.options.Limit
}
params.Limit = limit
result, err := p.client.ListGateways(ctx, ¶ms, optFns...)
if err != nil {
return nil, err
}
p.firstPage = false
prevToken := p.nextToken
p.nextToken = result.Marker
if p.options.StopOnDuplicateToken &&
prevToken != nil &&
p.nextToken != nil &&
*prevToken == *p.nextToken {
p.nextToken = nil
}
return result, nil
}
func newServiceMetadataMiddleware_opListGateways(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
OperationName: "ListGateways",
}
}