1// Code generated by smithy-go-codegen DO NOT EDIT.
2
3package emr
4
5import (
6	"context"
7	"fmt"
8	awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
9	"github.com/aws/aws-sdk-go-v2/aws/signer/v4"
10	"github.com/aws/aws-sdk-go-v2/service/emr/types"
11	"github.com/aws/smithy-go/middleware"
12	smithyhttp "github.com/aws/smithy-go/transport/http"
13)
14
15// Lists all available details about the instance fleets in a cluster. The instance
16// fleet configuration is available only in Amazon EMR versions 4.8.0 and later,
17// excluding 5.0.x versions.
18func (c *Client) ListInstanceFleets(ctx context.Context, params *ListInstanceFleetsInput, optFns ...func(*Options)) (*ListInstanceFleetsOutput, error) {
19	if params == nil {
20		params = &ListInstanceFleetsInput{}
21	}
22
23	result, metadata, err := c.invokeOperation(ctx, "ListInstanceFleets", params, optFns, addOperationListInstanceFleetsMiddlewares)
24	if err != nil {
25		return nil, err
26	}
27
28	out := result.(*ListInstanceFleetsOutput)
29	out.ResultMetadata = metadata
30	return out, nil
31}
32
33type ListInstanceFleetsInput struct {
34
35	// The unique identifier of the cluster.
36	//
37	// This member is required.
38	ClusterId *string
39
40	// The pagination token that indicates the next set of results to retrieve.
41	Marker *string
42}
43
44type ListInstanceFleetsOutput struct {
45
46	// The list of instance fleets for the cluster and given filters.
47	InstanceFleets []types.InstanceFleet
48
49	// The pagination token that indicates the next set of results to retrieve.
50	Marker *string
51
52	// Metadata pertaining to the operation's result.
53	ResultMetadata middleware.Metadata
54}
55
56func addOperationListInstanceFleetsMiddlewares(stack *middleware.Stack, options Options) (err error) {
57	err = stack.Serialize.Add(&awsAwsjson11_serializeOpListInstanceFleets{}, middleware.After)
58	if err != nil {
59		return err
60	}
61	err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpListInstanceFleets{}, middleware.After)
62	if err != nil {
63		return err
64	}
65	if err = addSetLoggerMiddleware(stack, options); err != nil {
66		return err
67	}
68	if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil {
69		return err
70	}
71	if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil {
72		return err
73	}
74	if err = addResolveEndpointMiddleware(stack, options); err != nil {
75		return err
76	}
77	if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil {
78		return err
79	}
80	if err = addRetryMiddlewares(stack, options); err != nil {
81		return err
82	}
83	if err = addHTTPSignerV4Middleware(stack, options); err != nil {
84		return err
85	}
86	if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil {
87		return err
88	}
89	if err = awsmiddleware.AddRecordResponseTiming(stack); err != nil {
90		return err
91	}
92	if err = addClientUserAgent(stack); err != nil {
93		return err
94	}
95	if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
96		return err
97	}
98	if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
99		return err
100	}
101	if err = addOpListInstanceFleetsValidationMiddleware(stack); err != nil {
102		return err
103	}
104	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opListInstanceFleets(options.Region), middleware.Before); err != nil {
105		return err
106	}
107	if err = addRequestIDRetrieverMiddleware(stack); err != nil {
108		return err
109	}
110	if err = addResponseErrorMiddleware(stack); err != nil {
111		return err
112	}
113	if err = addRequestResponseLogging(stack, options); err != nil {
114		return err
115	}
116	return nil
117}
118
119// ListInstanceFleetsAPIClient is a client that implements the ListInstanceFleets
120// operation.
121type ListInstanceFleetsAPIClient interface {
122	ListInstanceFleets(context.Context, *ListInstanceFleetsInput, ...func(*Options)) (*ListInstanceFleetsOutput, error)
123}
124
125var _ ListInstanceFleetsAPIClient = (*Client)(nil)
126
127// ListInstanceFleetsPaginatorOptions is the paginator options for
128// ListInstanceFleets
129type ListInstanceFleetsPaginatorOptions struct {
130	// Set to true if pagination should stop if the service returns a pagination token
131	// that matches the most recent token provided to the service.
132	StopOnDuplicateToken bool
133}
134
135// ListInstanceFleetsPaginator is a paginator for ListInstanceFleets
136type ListInstanceFleetsPaginator struct {
137	options   ListInstanceFleetsPaginatorOptions
138	client    ListInstanceFleetsAPIClient
139	params    *ListInstanceFleetsInput
140	nextToken *string
141	firstPage bool
142}
143
144// NewListInstanceFleetsPaginator returns a new ListInstanceFleetsPaginator
145func NewListInstanceFleetsPaginator(client ListInstanceFleetsAPIClient, params *ListInstanceFleetsInput, optFns ...func(*ListInstanceFleetsPaginatorOptions)) *ListInstanceFleetsPaginator {
146	if params == nil {
147		params = &ListInstanceFleetsInput{}
148	}
149
150	options := ListInstanceFleetsPaginatorOptions{}
151
152	for _, fn := range optFns {
153		fn(&options)
154	}
155
156	return &ListInstanceFleetsPaginator{
157		options:   options,
158		client:    client,
159		params:    params,
160		firstPage: true,
161	}
162}
163
164// HasMorePages returns a boolean indicating whether more pages are available
165func (p *ListInstanceFleetsPaginator) HasMorePages() bool {
166	return p.firstPage || p.nextToken != nil
167}
168
169// NextPage retrieves the next ListInstanceFleets page.
170func (p *ListInstanceFleetsPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*ListInstanceFleetsOutput, error) {
171	if !p.HasMorePages() {
172		return nil, fmt.Errorf("no more pages available")
173	}
174
175	params := *p.params
176	params.Marker = p.nextToken
177
178	result, err := p.client.ListInstanceFleets(ctx, &params, optFns...)
179	if err != nil {
180		return nil, err
181	}
182	p.firstPage = false
183
184	prevToken := p.nextToken
185	p.nextToken = result.Marker
186
187	if p.options.StopOnDuplicateToken && prevToken != nil && p.nextToken != nil && *prevToken == *p.nextToken {
188		p.nextToken = nil
189	}
190
191	return result, nil
192}
193
194func newServiceMetadataMiddleware_opListInstanceFleets(region string) *awsmiddleware.RegisterServiceMetadata {
195	return &awsmiddleware.RegisterServiceMetadata{
196		Region:        region,
197		ServiceID:     ServiceID,
198		SigningName:   "elasticmapreduce",
199		OperationName: "ListInstanceFleets",
200	}
201}
202