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api_op_DescribeInstanceEventWindows.go
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api_op_DescribeInstanceEventWindows.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 the specified event windows or all event windows. If you specify event
// window IDs, the output includes information for only the specified event
// windows. If you specify filters, the output includes information for only those
// event windows that meet the filter criteria. If you do not specify event windows
// IDs or filters, the output includes information for all event windows, which can
// affect performance. We recommend that you use pagination to ensure that the
// operation returns quickly and successfully. For more information, see Define
// event windows for scheduled events
// (https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/event-windows.html) in the
// Amazon EC2 User Guide.
func (c *Client) DescribeInstanceEventWindows(ctx context.Context, params *DescribeInstanceEventWindowsInput, optFns ...func(*Options)) (*DescribeInstanceEventWindowsOutput, error) {
if params == nil {
params = &DescribeInstanceEventWindowsInput{}
}
result, metadata, err := c.invokeOperation(ctx, "DescribeInstanceEventWindows", params, optFns, c.addOperationDescribeInstanceEventWindowsMiddlewares)
if err != nil {
return nil, err
}
out := result.(*DescribeInstanceEventWindowsOutput)
out.ResultMetadata = metadata
return out, nil
}
// Describe instance event windows by InstanceEventWindow.
type DescribeInstanceEventWindowsInput 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.
//
// * dedicated-host-id - The event windows associated with
// the specified Dedicated Host ID.
//
// * event-window-name - The event windows
// associated with the specified names.
//
// * instance-id - The event windows
// associated with the specified instance ID.
//
// * instance-tag - The event windows
// associated with the specified tag and value.
//
// * instance-tag-key - The event
// windows associated with the specified tag key, regardless of the value.
//
// *
// instance-tag-value - The event windows associated with the specified tag value,
// regardless of the key.
//
// * tag: - The key/value combination of a tag assigned to
// the event window. 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 CMX, specify tag:Owner for the filter name and CMX for the
// filter value.
//
// * tag-key - The key of a tag assigned to the event window. Use
// this filter to find all event windows that have a tag with a specific key,
// regardless of the tag value.
//
// * tag-value - The value of a tag assigned to the
// event window. Use this filter to find all event windows that have a tag with a
// specific value, regardless of the tag key.
Filters []types.Filter
// The IDs of the event windows.
InstanceEventWindowIds []string
// The maximum number of results to return in a single call. To retrieve the
// remaining results, make another call with the returned NextToken value. This
// value can be between 20 and 500. You cannot specify this parameter and the event
// window IDs parameter in the same call.
MaxResults *int32
// The token to request the next page of results.
NextToken *string
noSmithyDocumentSerde
}
type DescribeInstanceEventWindowsOutput struct {
// Information about the event windows.
InstanceEventWindows []types.InstanceEventWindow
// 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) addOperationDescribeInstanceEventWindowsMiddlewares(stack *middleware.Stack, options Options) (err error) {
err = stack.Serialize.Add(&awsEc2query_serializeOpDescribeInstanceEventWindows{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsEc2query_deserializeOpDescribeInstanceEventWindows{}, 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_opDescribeInstanceEventWindows(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
}
// DescribeInstanceEventWindowsAPIClient is a client that implements the
// DescribeInstanceEventWindows operation.
type DescribeInstanceEventWindowsAPIClient interface {
DescribeInstanceEventWindows(context.Context, *DescribeInstanceEventWindowsInput, ...func(*Options)) (*DescribeInstanceEventWindowsOutput, error)
}
var _ DescribeInstanceEventWindowsAPIClient = (*Client)(nil)
// DescribeInstanceEventWindowsPaginatorOptions is the paginator options for
// DescribeInstanceEventWindows
type DescribeInstanceEventWindowsPaginatorOptions struct {
// The maximum number of results to return in a single call. To retrieve the
// remaining results, make another call with the returned NextToken value. This
// value can be between 20 and 500. You cannot specify this parameter and the event
// window IDs parameter in the same call.
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
}
// DescribeInstanceEventWindowsPaginator is a paginator for
// DescribeInstanceEventWindows
type DescribeInstanceEventWindowsPaginator struct {
options DescribeInstanceEventWindowsPaginatorOptions
client DescribeInstanceEventWindowsAPIClient
params *DescribeInstanceEventWindowsInput
nextToken *string
firstPage bool
}
// NewDescribeInstanceEventWindowsPaginator returns a new
// DescribeInstanceEventWindowsPaginator
func NewDescribeInstanceEventWindowsPaginator(client DescribeInstanceEventWindowsAPIClient, params *DescribeInstanceEventWindowsInput, optFns ...func(*DescribeInstanceEventWindowsPaginatorOptions)) *DescribeInstanceEventWindowsPaginator {
if params == nil {
params = &DescribeInstanceEventWindowsInput{}
}
options := DescribeInstanceEventWindowsPaginatorOptions{}
if params.MaxResults != nil {
options.Limit = *params.MaxResults
}
for _, fn := range optFns {
fn(&options)
}
return &DescribeInstanceEventWindowsPaginator{
options: options,
client: client,
params: params,
firstPage: true,
nextToken: params.NextToken,
}
}
// HasMorePages returns a boolean indicating whether more pages are available
func (p *DescribeInstanceEventWindowsPaginator) HasMorePages() bool {
return p.firstPage || (p.nextToken != nil && len(*p.nextToken) != 0)
}
// NextPage retrieves the next DescribeInstanceEventWindows page.
func (p *DescribeInstanceEventWindowsPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*DescribeInstanceEventWindowsOutput, 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.DescribeInstanceEventWindows(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_opDescribeInstanceEventWindows(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
SigningName: "ec2",
OperationName: "DescribeInstanceEventWindows",
}
}