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api_op_DescribeClassicLinkInstances.go
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api_op_DescribeClassicLinkInstances.go
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// Code generated by smithy-go-codegen DO NOT EDIT.
package ec2
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/ec2/types"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// Describes one or more of your linked EC2-Classic instances. This request only
// returns information about EC2-Classic instances linked to a VPC through
// ClassicLink. You cannot use this request to return information about other
// instances. We are retiring EC2-Classic. We recommend that you migrate from
// EC2-Classic to a VPC. For more information, see Migrate from EC2-Classic to a
// VPC (https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/vpc-migrate.html) in
// the Amazon Elastic Compute Cloud User Guide.
func (c *Client) DescribeClassicLinkInstances(ctx context.Context, params *DescribeClassicLinkInstancesInput, optFns ...func(*Options)) (*DescribeClassicLinkInstancesOutput, error) {
if params == nil {
params = &DescribeClassicLinkInstancesInput{}
}
result, metadata, err := c.invokeOperation(ctx, "DescribeClassicLinkInstances", params, optFns, c.addOperationDescribeClassicLinkInstancesMiddlewares)
if err != nil {
return nil, err
}
out := result.(*DescribeClassicLinkInstancesOutput)
out.ResultMetadata = metadata
return out, nil
}
type DescribeClassicLinkInstancesInput struct {
// Checks whether you have the required permissions for the action, without
// actually making the request, and provides an error response. If you have the
// required permissions, the error response is DryRunOperation. Otherwise, it is
// UnauthorizedOperation.
DryRun *bool
// One or more filters.
//
// * group-id - The ID of a VPC security group that's
// associated with the instance.
//
// * instance-id - The ID of the instance.
//
// * tag: -
// The key/value combination of a tag assigned to the resource. Use the tag key in
// the filter name and the tag value as the filter value. For example, to find all
// resources that have a tag with the key Owner and the value TeamA, specify
// tag:Owner for the filter name and TeamA for the filter value.
//
// * tag-key - The
// key of a tag assigned to the resource. Use this filter to find all resources
// assigned a tag with a specific key, regardless of the tag value.
//
// * vpc-id - The
// ID of the VPC to which the instance is linked. vpc-id - The ID of the VPC that
// the instance is linked to.
Filters []types.Filter
// One or more instance IDs. Must be instances linked to a VPC through ClassicLink.
InstanceIds []string
// The maximum number of results to return with a single call. To retrieve the
// remaining results, make another call with the returned nextToken value.
// Constraint: If the value is greater than 1000, we return only 1000 items.
MaxResults *int32
// The token for the next page of results.
NextToken *string
noSmithyDocumentSerde
}
type DescribeClassicLinkInstancesOutput struct {
// Information about one or more linked EC2-Classic instances.
Instances []types.ClassicLinkInstance
// The token to use to retrieve the next page of results. This value is null when
// there are no more results to return.
NextToken *string
// Metadata pertaining to the operation's result.
ResultMetadata middleware.Metadata
noSmithyDocumentSerde
}
func (c *Client) addOperationDescribeClassicLinkInstancesMiddlewares(stack *middleware.Stack, options Options) (err error) {
err = stack.Serialize.Add(&awsEc2query_serializeOpDescribeClassicLinkInstances{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsEc2query_deserializeOpDescribeClassicLinkInstances{}, middleware.After)
if 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); err != nil {
return err
}
if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = stack.Initialize.Add(newServiceMetadataMiddleware_opDescribeClassicLinkInstances(options.Region), middleware.Before); 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
}
return nil
}
// DescribeClassicLinkInstancesAPIClient is a client that implements the
// DescribeClassicLinkInstances operation.
type DescribeClassicLinkInstancesAPIClient interface {
DescribeClassicLinkInstances(context.Context, *DescribeClassicLinkInstancesInput, ...func(*Options)) (*DescribeClassicLinkInstancesOutput, error)
}
var _ DescribeClassicLinkInstancesAPIClient = (*Client)(nil)
// DescribeClassicLinkInstancesPaginatorOptions is the paginator options for
// DescribeClassicLinkInstances
type DescribeClassicLinkInstancesPaginatorOptions struct {
// The maximum number of results to return with a single call. To retrieve the
// remaining results, make another call with the returned nextToken value.
// Constraint: If the value is greater than 1000, we return only 1000 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
}
// DescribeClassicLinkInstancesPaginator is a paginator for
// DescribeClassicLinkInstances
type DescribeClassicLinkInstancesPaginator struct {
options DescribeClassicLinkInstancesPaginatorOptions
client DescribeClassicLinkInstancesAPIClient
params *DescribeClassicLinkInstancesInput
nextToken *string
firstPage bool
}
// NewDescribeClassicLinkInstancesPaginator returns a new
// DescribeClassicLinkInstancesPaginator
func NewDescribeClassicLinkInstancesPaginator(client DescribeClassicLinkInstancesAPIClient, params *DescribeClassicLinkInstancesInput, optFns ...func(*DescribeClassicLinkInstancesPaginatorOptions)) *DescribeClassicLinkInstancesPaginator {
if params == nil {
params = &DescribeClassicLinkInstancesInput{}
}
options := DescribeClassicLinkInstancesPaginatorOptions{}
if params.MaxResults != nil {
options.Limit = *params.MaxResults
}
for _, fn := range optFns {
fn(&options)
}
return &DescribeClassicLinkInstancesPaginator{
options: options,
client: client,
params: params,
firstPage: true,
nextToken: params.NextToken,
}
}
// HasMorePages returns a boolean indicating whether more pages are available
func (p *DescribeClassicLinkInstancesPaginator) HasMorePages() bool {
return p.firstPage || (p.nextToken != nil && len(*p.nextToken) != 0)
}
// NextPage retrieves the next DescribeClassicLinkInstances page.
func (p *DescribeClassicLinkInstancesPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*DescribeClassicLinkInstancesOutput, 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.DescribeClassicLinkInstances(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_opDescribeClassicLinkInstances(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
SigningName: "ec2",
OperationName: "DescribeClassicLinkInstances",
}
}