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api_op_DescribeFileSystems.go
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api_op_DescribeFileSystems.go
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// Code generated by smithy-go-codegen DO NOT EDIT.
package fsx
import (
"context"
"errors"
"fmt"
"github.com/aws/aws-sdk-go-v2/aws"
awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
"github.com/aws/aws-sdk-go-v2/aws/signer/v4"
internalauth "github.com/aws/aws-sdk-go-v2/internal/auth"
"github.com/aws/aws-sdk-go-v2/service/fsx/types"
smithyendpoints "github.com/aws/smithy-go/endpoints"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// Returns the description of specific Amazon FSx file systems, if a FileSystemIds
// value is provided for that file system. Otherwise, it returns descriptions of
// all file systems owned by your Amazon Web Services account in the Amazon Web
// Services Region of the endpoint that you're calling. When retrieving all file
// system descriptions, you can optionally specify the MaxResults parameter to
// limit the number of descriptions in a response. If more file system descriptions
// remain, Amazon FSx returns a NextToken value in the response. In this case,
// send a later request with the NextToken request parameter set to the value of
// NextToken from the last response. This operation is used in an iterative process
// to retrieve a list of your file system descriptions. DescribeFileSystems is
// called first without a NextToken value. Then the operation continues to be
// called with the NextToken parameter set to the value of the last NextToken
// value until a response has no NextToken . When using this operation, keep the
// following in mind:
// - The implementation might return fewer than MaxResults file system
// descriptions while still including a NextToken value.
// - The order of file systems returned in the response of one
// DescribeFileSystems call and the order of file systems returned across the
// responses of a multicall iteration is unspecified.
func (c *Client) DescribeFileSystems(ctx context.Context, params *DescribeFileSystemsInput, optFns ...func(*Options)) (*DescribeFileSystemsOutput, error) {
if params == nil {
params = &DescribeFileSystemsInput{}
}
result, metadata, err := c.invokeOperation(ctx, "DescribeFileSystems", params, optFns, c.addOperationDescribeFileSystemsMiddlewares)
if err != nil {
return nil, err
}
out := result.(*DescribeFileSystemsOutput)
out.ResultMetadata = metadata
return out, nil
}
// The request object for DescribeFileSystems operation.
type DescribeFileSystemsInput struct {
// IDs of the file systems whose descriptions you want to retrieve (String).
FileSystemIds []string
// Maximum number of file systems to return in the response (integer). This
// parameter value must be greater than 0. The number of items that Amazon FSx
// returns is the minimum of the MaxResults parameter specified in the request and
// the service's internal maximum number of items per page.
MaxResults *int32
// Opaque pagination token returned from a previous DescribeFileSystems operation
// (String). If a token present, the operation continues the list from where the
// returning call left off.
NextToken *string
noSmithyDocumentSerde
}
// The response object for DescribeFileSystems operation.
type DescribeFileSystemsOutput struct {
// An array of file system descriptions.
FileSystems []types.FileSystem
// Present if there are more file systems than returned in the response (String).
// You can use the NextToken value in the later request to fetch the descriptions.
NextToken *string
// Metadata pertaining to the operation's result.
ResultMetadata middleware.Metadata
noSmithyDocumentSerde
}
func (c *Client) addOperationDescribeFileSystemsMiddlewares(stack *middleware.Stack, options Options) (err error) {
err = stack.Serialize.Add(&awsAwsjson11_serializeOpDescribeFileSystems{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpDescribeFileSystems{}, middleware.After)
if err != nil {
return err
}
if err = addlegacyEndpointContextSetter(stack, options); err != nil {
return err
}
if err = addSetLoggerMiddleware(stack, options); err != nil {
return err
}
if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil {
return err
}
if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil {
return err
}
if err = addResolveEndpointMiddleware(stack, options); err != nil {
return err
}
if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil {
return err
}
if err = addRetryMiddlewares(stack, options); err != nil {
return err
}
if err = addHTTPSignerV4Middleware(stack, options); err != nil {
return err
}
if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil {
return err
}
if err = awsmiddleware.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 = addDescribeFileSystemsResolveEndpointMiddleware(stack, options); err != nil {
return err
}
if err = stack.Initialize.Add(newServiceMetadataMiddleware_opDescribeFileSystems(options.Region), middleware.Before); err != nil {
return err
}
if err = awsmiddleware.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 = addendpointDisableHTTPSMiddleware(stack, options); err != nil {
return err
}
return nil
}
// DescribeFileSystemsAPIClient is a client that implements the
// DescribeFileSystems operation.
type DescribeFileSystemsAPIClient interface {
DescribeFileSystems(context.Context, *DescribeFileSystemsInput, ...func(*Options)) (*DescribeFileSystemsOutput, error)
}
var _ DescribeFileSystemsAPIClient = (*Client)(nil)
// DescribeFileSystemsPaginatorOptions is the paginator options for
// DescribeFileSystems
type DescribeFileSystemsPaginatorOptions struct {
// Maximum number of file systems to return in the response (integer). This
// parameter value must be greater than 0. The number of items that Amazon FSx
// returns is the minimum of the MaxResults parameter specified in the request and
// the service's internal maximum number of items per page.
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
}
// DescribeFileSystemsPaginator is a paginator for DescribeFileSystems
type DescribeFileSystemsPaginator struct {
options DescribeFileSystemsPaginatorOptions
client DescribeFileSystemsAPIClient
params *DescribeFileSystemsInput
nextToken *string
firstPage bool
}
// NewDescribeFileSystemsPaginator returns a new DescribeFileSystemsPaginator
func NewDescribeFileSystemsPaginator(client DescribeFileSystemsAPIClient, params *DescribeFileSystemsInput, optFns ...func(*DescribeFileSystemsPaginatorOptions)) *DescribeFileSystemsPaginator {
if params == nil {
params = &DescribeFileSystemsInput{}
}
options := DescribeFileSystemsPaginatorOptions{}
if params.MaxResults != nil {
options.Limit = *params.MaxResults
}
for _, fn := range optFns {
fn(&options)
}
return &DescribeFileSystemsPaginator{
options: options,
client: client,
params: params,
firstPage: true,
nextToken: params.NextToken,
}
}
// HasMorePages returns a boolean indicating whether more pages are available
func (p *DescribeFileSystemsPaginator) HasMorePages() bool {
return p.firstPage || (p.nextToken != nil && len(*p.nextToken) != 0)
}
// NextPage retrieves the next DescribeFileSystems page.
func (p *DescribeFileSystemsPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*DescribeFileSystemsOutput, error) {
if !p.HasMorePages() {
return nil, fmt.Errorf("no more pages available")
}
params := *p.params
params.NextToken = p.nextToken
var limit *int32
if p.options.Limit > 0 {
limit = &p.options.Limit
}
params.MaxResults = limit
result, err := p.client.DescribeFileSystems(ctx, ¶ms, optFns...)
if err != nil {
return nil, err
}
p.firstPage = false
prevToken := p.nextToken
p.nextToken = result.NextToken
if p.options.StopOnDuplicateToken &&
prevToken != nil &&
p.nextToken != nil &&
*prevToken == *p.nextToken {
p.nextToken = nil
}
return result, nil
}
func newServiceMetadataMiddleware_opDescribeFileSystems(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
SigningName: "fsx",
OperationName: "DescribeFileSystems",
}
}
type opDescribeFileSystemsResolveEndpointMiddleware struct {
EndpointResolver EndpointResolverV2
BuiltInResolver builtInParameterResolver
}
func (*opDescribeFileSystemsResolveEndpointMiddleware) ID() string {
return "ResolveEndpointV2"
}
func (m *opDescribeFileSystemsResolveEndpointMiddleware) HandleSerialize(ctx context.Context, in middleware.SerializeInput, next middleware.SerializeHandler) (
out middleware.SerializeOutput, metadata middleware.Metadata, err error,
) {
if awsmiddleware.GetRequiresLegacyEndpoints(ctx) {
return next.HandleSerialize(ctx, in)
}
req, ok := in.Request.(*smithyhttp.Request)
if !ok {
return out, metadata, fmt.Errorf("unknown transport type %T", in.Request)
}
if m.EndpointResolver == nil {
return out, metadata, fmt.Errorf("expected endpoint resolver to not be nil")
}
params := EndpointParameters{}
m.BuiltInResolver.ResolveBuiltIns(¶ms)
var resolvedEndpoint smithyendpoints.Endpoint
resolvedEndpoint, err = m.EndpointResolver.ResolveEndpoint(ctx, params)
if err != nil {
return out, metadata, fmt.Errorf("failed to resolve service endpoint, %w", err)
}
req.URL = &resolvedEndpoint.URI
for k := range resolvedEndpoint.Headers {
req.Header.Set(
k,
resolvedEndpoint.Headers.Get(k),
)
}
authSchemes, err := internalauth.GetAuthenticationSchemes(&resolvedEndpoint.Properties)
if err != nil {
var nfe *internalauth.NoAuthenticationSchemesFoundError
if errors.As(err, &nfe) {
// if no auth scheme is found, default to sigv4
signingName := "fsx"
signingRegion := m.BuiltInResolver.(*builtInResolver).Region
ctx = awsmiddleware.SetSigningName(ctx, signingName)
ctx = awsmiddleware.SetSigningRegion(ctx, signingRegion)
}
var ue *internalauth.UnSupportedAuthenticationSchemeSpecifiedError
if errors.As(err, &ue) {
return out, metadata, fmt.Errorf(
"This operation requests signer version(s) %v but the client only supports %v",
ue.UnsupportedSchemes,
internalauth.SupportedSchemes,
)
}
}
for _, authScheme := range authSchemes {
switch authScheme.(type) {
case *internalauth.AuthenticationSchemeV4:
v4Scheme, _ := authScheme.(*internalauth.AuthenticationSchemeV4)
var signingName, signingRegion string
if v4Scheme.SigningName == nil {
signingName = "fsx"
} else {
signingName = *v4Scheme.SigningName
}
if v4Scheme.SigningRegion == nil {
signingRegion = m.BuiltInResolver.(*builtInResolver).Region
} else {
signingRegion = *v4Scheme.SigningRegion
}
if v4Scheme.DisableDoubleEncoding != nil {
// The signer sets an equivalent value at client initialization time.
// Setting this context value will cause the signer to extract it
// and override the value set at client initialization time.
ctx = internalauth.SetDisableDoubleEncoding(ctx, *v4Scheme.DisableDoubleEncoding)
}
ctx = awsmiddleware.SetSigningName(ctx, signingName)
ctx = awsmiddleware.SetSigningRegion(ctx, signingRegion)
break
case *internalauth.AuthenticationSchemeV4A:
v4aScheme, _ := authScheme.(*internalauth.AuthenticationSchemeV4A)
if v4aScheme.SigningName == nil {
v4aScheme.SigningName = aws.String("fsx")
}
if v4aScheme.DisableDoubleEncoding != nil {
// The signer sets an equivalent value at client initialization time.
// Setting this context value will cause the signer to extract it
// and override the value set at client initialization time.
ctx = internalauth.SetDisableDoubleEncoding(ctx, *v4aScheme.DisableDoubleEncoding)
}
ctx = awsmiddleware.SetSigningName(ctx, *v4aScheme.SigningName)
ctx = awsmiddleware.SetSigningRegion(ctx, v4aScheme.SigningRegionSet[0])
break
case *internalauth.AuthenticationSchemeNone:
break
}
}
return next.HandleSerialize(ctx, in)
}
func addDescribeFileSystemsResolveEndpointMiddleware(stack *middleware.Stack, options Options) error {
return stack.Serialize.Insert(&opDescribeFileSystemsResolveEndpointMiddleware{
EndpointResolver: options.EndpointResolverV2,
BuiltInResolver: &builtInResolver{
Region: options.Region,
UseDualStack: options.EndpointOptions.UseDualStackEndpoint,
UseFIPS: options.EndpointOptions.UseFIPSEndpoint,
Endpoint: options.BaseEndpoint,
},
}, "ResolveEndpoint", middleware.After)
}