/
api_op_DescribeEngineVersions.go
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/
api_op_DescribeEngineVersions.go
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// Code generated by smithy-go-codegen DO NOT EDIT.
package databasemigrationservice
import (
"context"
"fmt"
awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
"github.com/aws/aws-sdk-go-v2/aws/signer/v4"
"github.com/aws/aws-sdk-go-v2/service/databasemigrationservice/types"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// Returns information about the replication instance versions used in the project.
func (c *Client) DescribeEngineVersions(ctx context.Context, params *DescribeEngineVersionsInput, optFns ...func(*Options)) (*DescribeEngineVersionsOutput, error) {
if params == nil {
params = &DescribeEngineVersionsInput{}
}
result, metadata, err := c.invokeOperation(ctx, "DescribeEngineVersions", params, optFns, c.addOperationDescribeEngineVersionsMiddlewares)
if err != nil {
return nil, err
}
out := result.(*DescribeEngineVersionsOutput)
out.ResultMetadata = metadata
return out, nil
}
type DescribeEngineVersionsInput struct {
// An optional pagination token provided by a previous request. If this parameter
// is specified, the response includes only records beyond the marker, up to the
// value specified by MaxRecords .
Marker *string
// The maximum number of records to include in the response. If more records exist
// than the specified MaxRecords value, a pagination token called a marker is
// included in the response so that the remaining results can be retrieved.
MaxRecords *int32
noSmithyDocumentSerde
}
type DescribeEngineVersionsOutput struct {
// Returned EngineVersion objects that describe the replication instance engine
// versions used in the project.
EngineVersions []types.EngineVersion
// An optional pagination token provided by a previous request. If this parameter
// is specified, the response includes only records beyond the marker, up to the
// value specified by MaxRecords .
Marker *string
// Metadata pertaining to the operation's result.
ResultMetadata middleware.Metadata
noSmithyDocumentSerde
}
func (c *Client) addOperationDescribeEngineVersionsMiddlewares(stack *middleware.Stack, options Options) (err error) {
if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
return err
}
err = stack.Serialize.Add(&awsAwsjson11_serializeOpDescribeEngineVersions{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpDescribeEngineVersions{}, middleware.After)
if err != nil {
return err
}
if err := addProtocolFinalizerMiddlewares(stack, options, "DescribeEngineVersions"); 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 = 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 = 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 = addSetLegacyContextSigningOptionsMiddleware(stack); err != nil {
return err
}
if err = stack.Initialize.Add(newServiceMetadataMiddleware_opDescribeEngineVersions(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 = addDisableHTTPSMiddleware(stack, options); err != nil {
return err
}
return nil
}
// DescribeEngineVersionsAPIClient is a client that implements the
// DescribeEngineVersions operation.
type DescribeEngineVersionsAPIClient interface {
DescribeEngineVersions(context.Context, *DescribeEngineVersionsInput, ...func(*Options)) (*DescribeEngineVersionsOutput, error)
}
var _ DescribeEngineVersionsAPIClient = (*Client)(nil)
// DescribeEngineVersionsPaginatorOptions is the paginator options for
// DescribeEngineVersions
type DescribeEngineVersionsPaginatorOptions struct {
// The maximum number of records to include in the response. If more records exist
// than the specified MaxRecords value, a pagination token called a marker is
// included in the response so that the remaining results can be retrieved.
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
}
// DescribeEngineVersionsPaginator is a paginator for DescribeEngineVersions
type DescribeEngineVersionsPaginator struct {
options DescribeEngineVersionsPaginatorOptions
client DescribeEngineVersionsAPIClient
params *DescribeEngineVersionsInput
nextToken *string
firstPage bool
}
// NewDescribeEngineVersionsPaginator returns a new DescribeEngineVersionsPaginator
func NewDescribeEngineVersionsPaginator(client DescribeEngineVersionsAPIClient, params *DescribeEngineVersionsInput, optFns ...func(*DescribeEngineVersionsPaginatorOptions)) *DescribeEngineVersionsPaginator {
if params == nil {
params = &DescribeEngineVersionsInput{}
}
options := DescribeEngineVersionsPaginatorOptions{}
if params.MaxRecords != nil {
options.Limit = *params.MaxRecords
}
for _, fn := range optFns {
fn(&options)
}
return &DescribeEngineVersionsPaginator{
options: options,
client: client,
params: params,
firstPage: true,
nextToken: params.Marker,
}
}
// HasMorePages returns a boolean indicating whether more pages are available
func (p *DescribeEngineVersionsPaginator) HasMorePages() bool {
return p.firstPage || (p.nextToken != nil && len(*p.nextToken) != 0)
}
// NextPage retrieves the next DescribeEngineVersions page.
func (p *DescribeEngineVersionsPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*DescribeEngineVersionsOutput, 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.MaxRecords = limit
result, err := p.client.DescribeEngineVersions(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_opDescribeEngineVersions(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
OperationName: "DescribeEngineVersions",
}
}