1// Code generated by smithy-go-codegen DO NOT EDIT.
2
3package lookoutmetrics
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/lookoutmetrics/types"
11	"github.com/aws/smithy-go/middleware"
12	smithyhttp "github.com/aws/smithy-go/transport/http"
13)
14
15// Lists the alerts attached to a detector.
16func (c *Client) ListAlerts(ctx context.Context, params *ListAlertsInput, optFns ...func(*Options)) (*ListAlertsOutput, error) {
17	if params == nil {
18		params = &ListAlertsInput{}
19	}
20
21	result, metadata, err := c.invokeOperation(ctx, "ListAlerts", params, optFns, addOperationListAlertsMiddlewares)
22	if err != nil {
23		return nil, err
24	}
25
26	out := result.(*ListAlertsOutput)
27	out.ResultMetadata = metadata
28	return out, nil
29}
30
31type ListAlertsInput struct {
32
33	// The ARN of the alert's detector.
34	AnomalyDetectorArn *string
35
36	// The maximum number of results that will be displayed by the request.
37	MaxResults int32
38
39	// If the result of the previous request is truncated, the response includes a
40	// NextToken. To retrieve the next set of results, use the token in the next
41	// request. Tokens expire after 24 hours.
42	NextToken *string
43}
44
45type ListAlertsOutput struct {
46
47	// Contains information about an alert.
48	AlertSummaryList []types.AlertSummary
49
50	// If the response is truncated, the service returns this token. To retrieve the
51	// next set of results, use this token in the next request.
52	NextToken *string
53
54	// Metadata pertaining to the operation's result.
55	ResultMetadata middleware.Metadata
56}
57
58func addOperationListAlertsMiddlewares(stack *middleware.Stack, options Options) (err error) {
59	err = stack.Serialize.Add(&awsRestjson1_serializeOpListAlerts{}, middleware.After)
60	if err != nil {
61		return err
62	}
63	err = stack.Deserialize.Add(&awsRestjson1_deserializeOpListAlerts{}, middleware.After)
64	if err != nil {
65		return err
66	}
67	if err = addSetLoggerMiddleware(stack, options); err != nil {
68		return err
69	}
70	if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil {
71		return err
72	}
73	if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil {
74		return err
75	}
76	if err = addResolveEndpointMiddleware(stack, options); err != nil {
77		return err
78	}
79	if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil {
80		return err
81	}
82	if err = addRetryMiddlewares(stack, options); err != nil {
83		return err
84	}
85	if err = addHTTPSignerV4Middleware(stack, options); err != nil {
86		return err
87	}
88	if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil {
89		return err
90	}
91	if err = awsmiddleware.AddRecordResponseTiming(stack); err != nil {
92		return err
93	}
94	if err = addClientUserAgent(stack); err != nil {
95		return err
96	}
97	if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
98		return err
99	}
100	if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
101		return err
102	}
103	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opListAlerts(options.Region), middleware.Before); err != nil {
104		return err
105	}
106	if err = addRequestIDRetrieverMiddleware(stack); err != nil {
107		return err
108	}
109	if err = addResponseErrorMiddleware(stack); err != nil {
110		return err
111	}
112	if err = addRequestResponseLogging(stack, options); err != nil {
113		return err
114	}
115	return nil
116}
117
118// ListAlertsAPIClient is a client that implements the ListAlerts operation.
119type ListAlertsAPIClient interface {
120	ListAlerts(context.Context, *ListAlertsInput, ...func(*Options)) (*ListAlertsOutput, error)
121}
122
123var _ ListAlertsAPIClient = (*Client)(nil)
124
125// ListAlertsPaginatorOptions is the paginator options for ListAlerts
126type ListAlertsPaginatorOptions struct {
127	// The maximum number of results that will be displayed by the request.
128	Limit int32
129
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// ListAlertsPaginator is a paginator for ListAlerts
136type ListAlertsPaginator struct {
137	options   ListAlertsPaginatorOptions
138	client    ListAlertsAPIClient
139	params    *ListAlertsInput
140	nextToken *string
141	firstPage bool
142}
143
144// NewListAlertsPaginator returns a new ListAlertsPaginator
145func NewListAlertsPaginator(client ListAlertsAPIClient, params *ListAlertsInput, optFns ...func(*ListAlertsPaginatorOptions)) *ListAlertsPaginator {
146	if params == nil {
147		params = &ListAlertsInput{}
148	}
149
150	options := ListAlertsPaginatorOptions{}
151	if params.MaxResults != 0 {
152		options.Limit = params.MaxResults
153	}
154
155	for _, fn := range optFns {
156		fn(&options)
157	}
158
159	return &ListAlertsPaginator{
160		options:   options,
161		client:    client,
162		params:    params,
163		firstPage: true,
164	}
165}
166
167// HasMorePages returns a boolean indicating whether more pages are available
168func (p *ListAlertsPaginator) HasMorePages() bool {
169	return p.firstPage || p.nextToken != nil
170}
171
172// NextPage retrieves the next ListAlerts page.
173func (p *ListAlertsPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*ListAlertsOutput, error) {
174	if !p.HasMorePages() {
175		return nil, fmt.Errorf("no more pages available")
176	}
177
178	params := *p.params
179	params.NextToken = p.nextToken
180
181	params.MaxResults = p.options.Limit
182
183	result, err := p.client.ListAlerts(ctx, &params, optFns...)
184	if err != nil {
185		return nil, err
186	}
187	p.firstPage = false
188
189	prevToken := p.nextToken
190	p.nextToken = result.NextToken
191
192	if p.options.StopOnDuplicateToken && prevToken != nil && p.nextToken != nil && *prevToken == *p.nextToken {
193		p.nextToken = nil
194	}
195
196	return result, nil
197}
198
199func newServiceMetadataMiddleware_opListAlerts(region string) *awsmiddleware.RegisterServiceMetadata {
200	return &awsmiddleware.RegisterServiceMetadata{
201		Region:        region,
202		ServiceID:     ServiceID,
203		SigningName:   "lookoutmetrics",
204		OperationName: "ListAlerts",
205	}
206}
207