1// Code generated by smithy-go-codegen DO NOT EDIT.
2
3package mq
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/mq/types"
11	"github.com/aws/smithy-go/middleware"
12	smithyhttp "github.com/aws/smithy-go/transport/http"
13)
14
15// Returns a list of all brokers.
16func (c *Client) ListBrokers(ctx context.Context, params *ListBrokersInput, optFns ...func(*Options)) (*ListBrokersOutput, error) {
17	if params == nil {
18		params = &ListBrokersInput{}
19	}
20
21	result, metadata, err := c.invokeOperation(ctx, "ListBrokers", params, optFns, c.addOperationListBrokersMiddlewares)
22	if err != nil {
23		return nil, err
24	}
25
26	out := result.(*ListBrokersOutput)
27	out.ResultMetadata = metadata
28	return out, nil
29}
30
31type ListBrokersInput struct {
32
33	// The maximum number of brokers that Amazon MQ can return per page (20 by
34	// default). This value must be an integer from 5 to 100.
35	MaxResults int32
36
37	// The token that specifies the next page of results Amazon MQ should return. To
38	// request the first page, leave nextToken empty.
39	NextToken *string
40
41	noSmithyDocumentSerde
42}
43
44type ListBrokersOutput struct {
45
46	// A list of information about all brokers.
47	BrokerSummaries []types.BrokerSummary
48
49	// The token that specifies the next page of results Amazon MQ should return. To
50	// request the first page, leave nextToken empty.
51	NextToken *string
52
53	// Metadata pertaining to the operation's result.
54	ResultMetadata middleware.Metadata
55
56	noSmithyDocumentSerde
57}
58
59func (c *Client) addOperationListBrokersMiddlewares(stack *middleware.Stack, options Options) (err error) {
60	err = stack.Serialize.Add(&awsRestjson1_serializeOpListBrokers{}, middleware.After)
61	if err != nil {
62		return err
63	}
64	err = stack.Deserialize.Add(&awsRestjson1_deserializeOpListBrokers{}, middleware.After)
65	if err != nil {
66		return err
67	}
68	if err = addSetLoggerMiddleware(stack, options); err != nil {
69		return err
70	}
71	if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil {
72		return err
73	}
74	if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil {
75		return err
76	}
77	if err = addResolveEndpointMiddleware(stack, options); err != nil {
78		return err
79	}
80	if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil {
81		return err
82	}
83	if err = addRetryMiddlewares(stack, options); err != nil {
84		return err
85	}
86	if err = addHTTPSignerV4Middleware(stack, options); err != nil {
87		return err
88	}
89	if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil {
90		return err
91	}
92	if err = awsmiddleware.AddRecordResponseTiming(stack); err != nil {
93		return err
94	}
95	if err = addClientUserAgent(stack); err != nil {
96		return err
97	}
98	if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
99		return err
100	}
101	if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
102		return err
103	}
104	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opListBrokers(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// ListBrokersAPIClient is a client that implements the ListBrokers operation.
120type ListBrokersAPIClient interface {
121	ListBrokers(context.Context, *ListBrokersInput, ...func(*Options)) (*ListBrokersOutput, error)
122}
123
124var _ ListBrokersAPIClient = (*Client)(nil)
125
126// ListBrokersPaginatorOptions is the paginator options for ListBrokers
127type ListBrokersPaginatorOptions struct {
128	// The maximum number of brokers that Amazon MQ can return per page (20 by
129	// default). This value must be an integer from 5 to 100.
130	Limit int32
131
132	// Set to true if pagination should stop if the service returns a pagination token
133	// that matches the most recent token provided to the service.
134	StopOnDuplicateToken bool
135}
136
137// ListBrokersPaginator is a paginator for ListBrokers
138type ListBrokersPaginator struct {
139	options   ListBrokersPaginatorOptions
140	client    ListBrokersAPIClient
141	params    *ListBrokersInput
142	nextToken *string
143	firstPage bool
144}
145
146// NewListBrokersPaginator returns a new ListBrokersPaginator
147func NewListBrokersPaginator(client ListBrokersAPIClient, params *ListBrokersInput, optFns ...func(*ListBrokersPaginatorOptions)) *ListBrokersPaginator {
148	if params == nil {
149		params = &ListBrokersInput{}
150	}
151
152	options := ListBrokersPaginatorOptions{}
153	if params.MaxResults != 0 {
154		options.Limit = params.MaxResults
155	}
156
157	for _, fn := range optFns {
158		fn(&options)
159	}
160
161	return &ListBrokersPaginator{
162		options:   options,
163		client:    client,
164		params:    params,
165		firstPage: true,
166	}
167}
168
169// HasMorePages returns a boolean indicating whether more pages are available
170func (p *ListBrokersPaginator) HasMorePages() bool {
171	return p.firstPage || p.nextToken != nil
172}
173
174// NextPage retrieves the next ListBrokers page.
175func (p *ListBrokersPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*ListBrokersOutput, error) {
176	if !p.HasMorePages() {
177		return nil, fmt.Errorf("no more pages available")
178	}
179
180	params := *p.params
181	params.NextToken = p.nextToken
182
183	params.MaxResults = p.options.Limit
184
185	result, err := p.client.ListBrokers(ctx, &params, optFns...)
186	if err != nil {
187		return nil, err
188	}
189	p.firstPage = false
190
191	prevToken := p.nextToken
192	p.nextToken = result.NextToken
193
194	if p.options.StopOnDuplicateToken && prevToken != nil && p.nextToken != nil && *prevToken == *p.nextToken {
195		p.nextToken = nil
196	}
197
198	return result, nil
199}
200
201func newServiceMetadataMiddleware_opListBrokers(region string) *awsmiddleware.RegisterServiceMetadata {
202	return &awsmiddleware.RegisterServiceMetadata{
203		Region:        region,
204		ServiceID:     ServiceID,
205		SigningName:   "mq",
206		OperationName: "ListBrokers",
207	}
208}
209