1// Code generated by smithy-go-codegen DO NOT EDIT.
2
3package cloudhsmv2
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/cloudhsmv2/types"
11	"github.com/aws/smithy-go/middleware"
12	smithyhttp "github.com/aws/smithy-go/transport/http"
13)
14
15// Gets information about AWS CloudHSM clusters. This is a paginated operation,
16// which means that each response might contain only a subset of all the clusters.
17// When the response contains only a subset of clusters, it includes a NextToken
18// value. Use this value in a subsequent DescribeClusters request to get more
19// clusters. When you receive a response with no NextToken (or an empty or null
20// value), that means there are no more clusters to get.
21func (c *Client) DescribeClusters(ctx context.Context, params *DescribeClustersInput, optFns ...func(*Options)) (*DescribeClustersOutput, error) {
22	if params == nil {
23		params = &DescribeClustersInput{}
24	}
25
26	result, metadata, err := c.invokeOperation(ctx, "DescribeClusters", params, optFns, addOperationDescribeClustersMiddlewares)
27	if err != nil {
28		return nil, err
29	}
30
31	out := result.(*DescribeClustersOutput)
32	out.ResultMetadata = metadata
33	return out, nil
34}
35
36type DescribeClustersInput struct {
37
38	// One or more filters to limit the items returned in the response. Use the
39	// clusterIds filter to return only the specified clusters. Specify clusters by
40	// their cluster identifier (ID). Use the vpcIds filter to return only the clusters
41	// in the specified virtual private clouds (VPCs). Specify VPCs by their VPC
42	// identifier (ID). Use the states filter to return only clusters that match the
43	// specified state.
44	Filters map[string][]string
45
46	// The maximum number of clusters to return in the response. When there are more
47	// clusters than the number you specify, the response contains a NextToken value.
48	MaxResults *int32
49
50	// The NextToken value that you received in the previous response. Use this value
51	// to get more clusters.
52	NextToken *string
53}
54
55type DescribeClustersOutput struct {
56
57	// A list of clusters.
58	Clusters []types.Cluster
59
60	// An opaque string that indicates that the response contains only a subset of
61	// clusters. Use this value in a subsequent DescribeClusters request to get more
62	// clusters.
63	NextToken *string
64
65	// Metadata pertaining to the operation's result.
66	ResultMetadata middleware.Metadata
67}
68
69func addOperationDescribeClustersMiddlewares(stack *middleware.Stack, options Options) (err error) {
70	err = stack.Serialize.Add(&awsAwsjson11_serializeOpDescribeClusters{}, middleware.After)
71	if err != nil {
72		return err
73	}
74	err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpDescribeClusters{}, middleware.After)
75	if err != nil {
76		return err
77	}
78	if err = addSetLoggerMiddleware(stack, options); err != nil {
79		return err
80	}
81	if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil {
82		return err
83	}
84	if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil {
85		return err
86	}
87	if err = addResolveEndpointMiddleware(stack, options); err != nil {
88		return err
89	}
90	if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil {
91		return err
92	}
93	if err = addRetryMiddlewares(stack, options); err != nil {
94		return err
95	}
96	if err = addHTTPSignerV4Middleware(stack, options); err != nil {
97		return err
98	}
99	if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil {
100		return err
101	}
102	if err = awsmiddleware.AddRecordResponseTiming(stack); err != nil {
103		return err
104	}
105	if err = addClientUserAgent(stack); err != nil {
106		return err
107	}
108	if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
109		return err
110	}
111	if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
112		return err
113	}
114	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opDescribeClusters(options.Region), middleware.Before); err != nil {
115		return err
116	}
117	if err = addRequestIDRetrieverMiddleware(stack); err != nil {
118		return err
119	}
120	if err = addResponseErrorMiddleware(stack); err != nil {
121		return err
122	}
123	if err = addRequestResponseLogging(stack, options); err != nil {
124		return err
125	}
126	return nil
127}
128
129// DescribeClustersAPIClient is a client that implements the DescribeClusters
130// operation.
131type DescribeClustersAPIClient interface {
132	DescribeClusters(context.Context, *DescribeClustersInput, ...func(*Options)) (*DescribeClustersOutput, error)
133}
134
135var _ DescribeClustersAPIClient = (*Client)(nil)
136
137// DescribeClustersPaginatorOptions is the paginator options for DescribeClusters
138type DescribeClustersPaginatorOptions struct {
139	// The maximum number of clusters to return in the response. When there are more
140	// clusters than the number you specify, the response contains a NextToken value.
141	Limit int32
142
143	// Set to true if pagination should stop if the service returns a pagination token
144	// that matches the most recent token provided to the service.
145	StopOnDuplicateToken bool
146}
147
148// DescribeClustersPaginator is a paginator for DescribeClusters
149type DescribeClustersPaginator struct {
150	options   DescribeClustersPaginatorOptions
151	client    DescribeClustersAPIClient
152	params    *DescribeClustersInput
153	nextToken *string
154	firstPage bool
155}
156
157// NewDescribeClustersPaginator returns a new DescribeClustersPaginator
158func NewDescribeClustersPaginator(client DescribeClustersAPIClient, params *DescribeClustersInput, optFns ...func(*DescribeClustersPaginatorOptions)) *DescribeClustersPaginator {
159	if params == nil {
160		params = &DescribeClustersInput{}
161	}
162
163	options := DescribeClustersPaginatorOptions{}
164	if params.MaxResults != nil {
165		options.Limit = *params.MaxResults
166	}
167
168	for _, fn := range optFns {
169		fn(&options)
170	}
171
172	return &DescribeClustersPaginator{
173		options:   options,
174		client:    client,
175		params:    params,
176		firstPage: true,
177	}
178}
179
180// HasMorePages returns a boolean indicating whether more pages are available
181func (p *DescribeClustersPaginator) HasMorePages() bool {
182	return p.firstPage || p.nextToken != nil
183}
184
185// NextPage retrieves the next DescribeClusters page.
186func (p *DescribeClustersPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*DescribeClustersOutput, error) {
187	if !p.HasMorePages() {
188		return nil, fmt.Errorf("no more pages available")
189	}
190
191	params := *p.params
192	params.NextToken = p.nextToken
193
194	var limit *int32
195	if p.options.Limit > 0 {
196		limit = &p.options.Limit
197	}
198	params.MaxResults = limit
199
200	result, err := p.client.DescribeClusters(ctx, &params, optFns...)
201	if err != nil {
202		return nil, err
203	}
204	p.firstPage = false
205
206	prevToken := p.nextToken
207	p.nextToken = result.NextToken
208
209	if p.options.StopOnDuplicateToken && prevToken != nil && p.nextToken != nil && *prevToken == *p.nextToken {
210		p.nextToken = nil
211	}
212
213	return result, nil
214}
215
216func newServiceMetadataMiddleware_opDescribeClusters(region string) *awsmiddleware.RegisterServiceMetadata {
217	return &awsmiddleware.RegisterServiceMetadata{
218		Region:        region,
219		ServiceID:     ServiceID,
220		SigningName:   "cloudhsm",
221		OperationName: "DescribeClusters",
222	}
223}
224