/
api_op_DescribeEndpoints.go
571 lines (486 loc) · 18.3 KB
/
api_op_DescribeEndpoints.go
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// Code generated by smithy-go-codegen DO NOT EDIT.
package databasemigrationservice
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/databasemigrationservice/types"
smithyendpoints "github.com/aws/smithy-go/endpoints"
"github.com/aws/smithy-go/middleware"
smithytime "github.com/aws/smithy-go/time"
smithyhttp "github.com/aws/smithy-go/transport/http"
smithywaiter "github.com/aws/smithy-go/waiter"
"github.com/jmespath/go-jmespath"
"time"
)
// Returns information about the endpoints for your account in the current region.
func (c *Client) DescribeEndpoints(ctx context.Context, params *DescribeEndpointsInput, optFns ...func(*Options)) (*DescribeEndpointsOutput, error) {
if params == nil {
params = &DescribeEndpointsInput{}
}
result, metadata, err := c.invokeOperation(ctx, "DescribeEndpoints", params, optFns, c.addOperationDescribeEndpointsMiddlewares)
if err != nil {
return nil, err
}
out := result.(*DescribeEndpointsOutput)
out.ResultMetadata = metadata
return out, nil
}
type DescribeEndpointsInput struct {
// Filters applied to the endpoints. Valid filter names: endpoint-arn |
// endpoint-type | endpoint-id | engine-name
Filters []types.Filter
// 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.
// Default: 100 Constraints: Minimum 20, maximum 100.
MaxRecords *int32
noSmithyDocumentSerde
}
type DescribeEndpointsOutput struct {
// Endpoint description.
Endpoints []types.Endpoint
// 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) addOperationDescribeEndpointsMiddlewares(stack *middleware.Stack, options Options) (err error) {
err = stack.Serialize.Add(&awsAwsjson11_serializeOpDescribeEndpoints{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpDescribeEndpoints{}, 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 = addDescribeEndpointsResolveEndpointMiddleware(stack, options); err != nil {
return err
}
if err = addOpDescribeEndpointsValidationMiddleware(stack); err != nil {
return err
}
if err = stack.Initialize.Add(newServiceMetadataMiddleware_opDescribeEndpoints(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
}
// DescribeEndpointsAPIClient is a client that implements the DescribeEndpoints
// operation.
type DescribeEndpointsAPIClient interface {
DescribeEndpoints(context.Context, *DescribeEndpointsInput, ...func(*Options)) (*DescribeEndpointsOutput, error)
}
var _ DescribeEndpointsAPIClient = (*Client)(nil)
// DescribeEndpointsPaginatorOptions is the paginator options for DescribeEndpoints
type DescribeEndpointsPaginatorOptions 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.
// Default: 100 Constraints: Minimum 20, maximum 100.
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
}
// DescribeEndpointsPaginator is a paginator for DescribeEndpoints
type DescribeEndpointsPaginator struct {
options DescribeEndpointsPaginatorOptions
client DescribeEndpointsAPIClient
params *DescribeEndpointsInput
nextToken *string
firstPage bool
}
// NewDescribeEndpointsPaginator returns a new DescribeEndpointsPaginator
func NewDescribeEndpointsPaginator(client DescribeEndpointsAPIClient, params *DescribeEndpointsInput, optFns ...func(*DescribeEndpointsPaginatorOptions)) *DescribeEndpointsPaginator {
if params == nil {
params = &DescribeEndpointsInput{}
}
options := DescribeEndpointsPaginatorOptions{}
if params.MaxRecords != nil {
options.Limit = *params.MaxRecords
}
for _, fn := range optFns {
fn(&options)
}
return &DescribeEndpointsPaginator{
options: options,
client: client,
params: params,
firstPage: true,
nextToken: params.Marker,
}
}
// HasMorePages returns a boolean indicating whether more pages are available
func (p *DescribeEndpointsPaginator) HasMorePages() bool {
return p.firstPage || (p.nextToken != nil && len(*p.nextToken) != 0)
}
// NextPage retrieves the next DescribeEndpoints page.
func (p *DescribeEndpointsPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*DescribeEndpointsOutput, 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.DescribeEndpoints(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
}
// EndpointDeletedWaiterOptions are waiter options for EndpointDeletedWaiter
type EndpointDeletedWaiterOptions struct {
// Set of options to modify how an operation is invoked. These apply to all
// operations invoked for this client. Use functional options on operation call to
// modify this list for per operation behavior.
APIOptions []func(*middleware.Stack) error
// MinDelay is the minimum amount of time to delay between retries. If unset,
// EndpointDeletedWaiter will use default minimum delay of 5 seconds. Note that
// MinDelay must resolve to a value lesser than or equal to the MaxDelay.
MinDelay time.Duration
// MaxDelay is the maximum amount of time to delay between retries. If unset or
// set to zero, EndpointDeletedWaiter will use default max delay of 120 seconds.
// Note that MaxDelay must resolve to value greater than or equal to the MinDelay.
MaxDelay time.Duration
// LogWaitAttempts is used to enable logging for waiter retry attempts
LogWaitAttempts bool
// Retryable is function that can be used to override the service defined
// waiter-behavior based on operation output, or returned error. This function is
// used by the waiter to decide if a state is retryable or a terminal state. By
// default service-modeled logic will populate this option. This option can thus be
// used to define a custom waiter state with fall-back to service-modeled waiter
// state mutators.The function returns an error in case of a failure state. In case
// of retry state, this function returns a bool value of true and nil error, while
// in case of success it returns a bool value of false and nil error.
Retryable func(context.Context, *DescribeEndpointsInput, *DescribeEndpointsOutput, error) (bool, error)
}
// EndpointDeletedWaiter defines the waiters for EndpointDeleted
type EndpointDeletedWaiter struct {
client DescribeEndpointsAPIClient
options EndpointDeletedWaiterOptions
}
// NewEndpointDeletedWaiter constructs a EndpointDeletedWaiter.
func NewEndpointDeletedWaiter(client DescribeEndpointsAPIClient, optFns ...func(*EndpointDeletedWaiterOptions)) *EndpointDeletedWaiter {
options := EndpointDeletedWaiterOptions{}
options.MinDelay = 5 * time.Second
options.MaxDelay = 120 * time.Second
options.Retryable = endpointDeletedStateRetryable
for _, fn := range optFns {
fn(&options)
}
return &EndpointDeletedWaiter{
client: client,
options: options,
}
}
// Wait calls the waiter function for EndpointDeleted waiter. The maxWaitDur is
// the maximum wait duration the waiter will wait. The maxWaitDur is required and
// must be greater than zero.
func (w *EndpointDeletedWaiter) Wait(ctx context.Context, params *DescribeEndpointsInput, maxWaitDur time.Duration, optFns ...func(*EndpointDeletedWaiterOptions)) error {
_, err := w.WaitForOutput(ctx, params, maxWaitDur, optFns...)
return err
}
// WaitForOutput calls the waiter function for EndpointDeleted waiter and returns
// the output of the successful operation. The maxWaitDur is the maximum wait
// duration the waiter will wait. The maxWaitDur is required and must be greater
// than zero.
func (w *EndpointDeletedWaiter) WaitForOutput(ctx context.Context, params *DescribeEndpointsInput, maxWaitDur time.Duration, optFns ...func(*EndpointDeletedWaiterOptions)) (*DescribeEndpointsOutput, error) {
if maxWaitDur <= 0 {
return nil, fmt.Errorf("maximum wait time for waiter must be greater than zero")
}
options := w.options
for _, fn := range optFns {
fn(&options)
}
if options.MaxDelay <= 0 {
options.MaxDelay = 120 * time.Second
}
if options.MinDelay > options.MaxDelay {
return nil, fmt.Errorf("minimum waiter delay %v must be lesser than or equal to maximum waiter delay of %v.", options.MinDelay, options.MaxDelay)
}
ctx, cancelFn := context.WithTimeout(ctx, maxWaitDur)
defer cancelFn()
logger := smithywaiter.Logger{}
remainingTime := maxWaitDur
var attempt int64
for {
attempt++
apiOptions := options.APIOptions
start := time.Now()
if options.LogWaitAttempts {
logger.Attempt = attempt
apiOptions = append([]func(*middleware.Stack) error{}, options.APIOptions...)
apiOptions = append(apiOptions, logger.AddLogger)
}
out, err := w.client.DescribeEndpoints(ctx, params, func(o *Options) {
o.APIOptions = append(o.APIOptions, apiOptions...)
})
retryable, err := options.Retryable(ctx, params, out, err)
if err != nil {
return nil, err
}
if !retryable {
return out, nil
}
remainingTime -= time.Since(start)
if remainingTime < options.MinDelay || remainingTime <= 0 {
break
}
// compute exponential backoff between waiter retries
delay, err := smithywaiter.ComputeDelay(
attempt, options.MinDelay, options.MaxDelay, remainingTime,
)
if err != nil {
return nil, fmt.Errorf("error computing waiter delay, %w", err)
}
remainingTime -= delay
// sleep for the delay amount before invoking a request
if err := smithytime.SleepWithContext(ctx, delay); err != nil {
return nil, fmt.Errorf("request cancelled while waiting, %w", err)
}
}
return nil, fmt.Errorf("exceeded max wait time for EndpointDeleted waiter")
}
func endpointDeletedStateRetryable(ctx context.Context, input *DescribeEndpointsInput, output *DescribeEndpointsOutput, err error) (bool, error) {
if err != nil {
var errorType *types.ResourceNotFoundFault
if errors.As(err, &errorType) {
return false, nil
}
}
if err == nil {
pathValue, err := jmespath.Search("Endpoints[].Status", output)
if err != nil {
return false, fmt.Errorf("error evaluating waiter state: %w", err)
}
expectedValue := "active"
listOfValues, ok := pathValue.([]interface{})
if !ok {
return false, fmt.Errorf("waiter comparator expected list got %T", pathValue)
}
for _, v := range listOfValues {
value, ok := v.(*string)
if !ok {
return false, fmt.Errorf("waiter comparator expected *string value, got %T", pathValue)
}
if string(*value) == expectedValue {
return false, fmt.Errorf("waiter state transitioned to Failure")
}
}
}
if err == nil {
pathValue, err := jmespath.Search("Endpoints[].Status", output)
if err != nil {
return false, fmt.Errorf("error evaluating waiter state: %w", err)
}
expectedValue := "creating"
listOfValues, ok := pathValue.([]interface{})
if !ok {
return false, fmt.Errorf("waiter comparator expected list got %T", pathValue)
}
for _, v := range listOfValues {
value, ok := v.(*string)
if !ok {
return false, fmt.Errorf("waiter comparator expected *string value, got %T", pathValue)
}
if string(*value) == expectedValue {
return false, fmt.Errorf("waiter state transitioned to Failure")
}
}
}
return true, nil
}
func newServiceMetadataMiddleware_opDescribeEndpoints(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
SigningName: "dms",
OperationName: "DescribeEndpoints",
}
}
type opDescribeEndpointsResolveEndpointMiddleware struct {
EndpointResolver EndpointResolverV2
BuiltInResolver builtInParameterResolver
}
func (*opDescribeEndpointsResolveEndpointMiddleware) ID() string {
return "ResolveEndpointV2"
}
func (m *opDescribeEndpointsResolveEndpointMiddleware) 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 := "dms"
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 = "dms"
} 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("dms")
}
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 addDescribeEndpointsResolveEndpointMiddleware(stack *middleware.Stack, options Options) error {
return stack.Serialize.Insert(&opDescribeEndpointsResolveEndpointMiddleware{
EndpointResolver: options.EndpointResolverV2,
BuiltInResolver: &builtInResolver{
Region: options.Region,
UseDualStack: options.EndpointOptions.UseDualStackEndpoint,
UseFIPS: options.EndpointOptions.UseFIPSEndpoint,
Endpoint: options.BaseEndpoint,
},
}, "ResolveEndpoint", middleware.After)
}