1// Code generated by smithy-go-codegen DO NOT EDIT.
2
3package glue
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/glue/types"
11	"github.com/aws/smithy-go/middleware"
12	smithyhttp "github.com/aws/smithy-go/transport/http"
13)
14
15// Retrieves multiple function definitions from the Data Catalog.
16func (c *Client) GetUserDefinedFunctions(ctx context.Context, params *GetUserDefinedFunctionsInput, optFns ...func(*Options)) (*GetUserDefinedFunctionsOutput, error) {
17	if params == nil {
18		params = &GetUserDefinedFunctionsInput{}
19	}
20
21	result, metadata, err := c.invokeOperation(ctx, "GetUserDefinedFunctions", params, optFns, addOperationGetUserDefinedFunctionsMiddlewares)
22	if err != nil {
23		return nil, err
24	}
25
26	out := result.(*GetUserDefinedFunctionsOutput)
27	out.ResultMetadata = metadata
28	return out, nil
29}
30
31type GetUserDefinedFunctionsInput struct {
32
33	// An optional function-name pattern string that filters the function definitions
34	// returned.
35	//
36	// This member is required.
37	Pattern *string
38
39	// The ID of the Data Catalog where the functions to be retrieved are located. If
40	// none is provided, the AWS account ID is used by default.
41	CatalogId *string
42
43	// The name of the catalog database where the functions are located. If none is
44	// provided, functions from all the databases across the catalog will be returned.
45	DatabaseName *string
46
47	// The maximum number of functions to return in one response.
48	MaxResults *int32
49
50	// A continuation token, if this is a continuation call.
51	NextToken *string
52}
53
54type GetUserDefinedFunctionsOutput struct {
55
56	// A continuation token, if the list of functions returned does not include the
57	// last requested function.
58	NextToken *string
59
60	// A list of requested function definitions.
61	UserDefinedFunctions []types.UserDefinedFunction
62
63	// Metadata pertaining to the operation's result.
64	ResultMetadata middleware.Metadata
65}
66
67func addOperationGetUserDefinedFunctionsMiddlewares(stack *middleware.Stack, options Options) (err error) {
68	err = stack.Serialize.Add(&awsAwsjson11_serializeOpGetUserDefinedFunctions{}, middleware.After)
69	if err != nil {
70		return err
71	}
72	err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpGetUserDefinedFunctions{}, middleware.After)
73	if err != nil {
74		return err
75	}
76	if err = addSetLoggerMiddleware(stack, options); err != nil {
77		return err
78	}
79	if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil {
80		return err
81	}
82	if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil {
83		return err
84	}
85	if err = addResolveEndpointMiddleware(stack, options); err != nil {
86		return err
87	}
88	if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil {
89		return err
90	}
91	if err = addRetryMiddlewares(stack, options); err != nil {
92		return err
93	}
94	if err = addHTTPSignerV4Middleware(stack, options); err != nil {
95		return err
96	}
97	if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil {
98		return err
99	}
100	if err = awsmiddleware.AddRecordResponseTiming(stack); err != nil {
101		return err
102	}
103	if err = addClientUserAgent(stack); err != nil {
104		return err
105	}
106	if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
107		return err
108	}
109	if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
110		return err
111	}
112	if err = addOpGetUserDefinedFunctionsValidationMiddleware(stack); err != nil {
113		return err
114	}
115	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opGetUserDefinedFunctions(options.Region), middleware.Before); err != nil {
116		return err
117	}
118	if err = addRequestIDRetrieverMiddleware(stack); err != nil {
119		return err
120	}
121	if err = addResponseErrorMiddleware(stack); err != nil {
122		return err
123	}
124	if err = addRequestResponseLogging(stack, options); err != nil {
125		return err
126	}
127	return nil
128}
129
130// GetUserDefinedFunctionsAPIClient is a client that implements the
131// GetUserDefinedFunctions operation.
132type GetUserDefinedFunctionsAPIClient interface {
133	GetUserDefinedFunctions(context.Context, *GetUserDefinedFunctionsInput, ...func(*Options)) (*GetUserDefinedFunctionsOutput, error)
134}
135
136var _ GetUserDefinedFunctionsAPIClient = (*Client)(nil)
137
138// GetUserDefinedFunctionsPaginatorOptions is the paginator options for
139// GetUserDefinedFunctions
140type GetUserDefinedFunctionsPaginatorOptions struct {
141	// The maximum number of functions to return in one response.
142	Limit int32
143
144	// Set to true if pagination should stop if the service returns a pagination token
145	// that matches the most recent token provided to the service.
146	StopOnDuplicateToken bool
147}
148
149// GetUserDefinedFunctionsPaginator is a paginator for GetUserDefinedFunctions
150type GetUserDefinedFunctionsPaginator struct {
151	options   GetUserDefinedFunctionsPaginatorOptions
152	client    GetUserDefinedFunctionsAPIClient
153	params    *GetUserDefinedFunctionsInput
154	nextToken *string
155	firstPage bool
156}
157
158// NewGetUserDefinedFunctionsPaginator returns a new
159// GetUserDefinedFunctionsPaginator
160func NewGetUserDefinedFunctionsPaginator(client GetUserDefinedFunctionsAPIClient, params *GetUserDefinedFunctionsInput, optFns ...func(*GetUserDefinedFunctionsPaginatorOptions)) *GetUserDefinedFunctionsPaginator {
161	if params == nil {
162		params = &GetUserDefinedFunctionsInput{}
163	}
164
165	options := GetUserDefinedFunctionsPaginatorOptions{}
166	if params.MaxResults != nil {
167		options.Limit = *params.MaxResults
168	}
169
170	for _, fn := range optFns {
171		fn(&options)
172	}
173
174	return &GetUserDefinedFunctionsPaginator{
175		options:   options,
176		client:    client,
177		params:    params,
178		firstPage: true,
179	}
180}
181
182// HasMorePages returns a boolean indicating whether more pages are available
183func (p *GetUserDefinedFunctionsPaginator) HasMorePages() bool {
184	return p.firstPage || p.nextToken != nil
185}
186
187// NextPage retrieves the next GetUserDefinedFunctions page.
188func (p *GetUserDefinedFunctionsPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*GetUserDefinedFunctionsOutput, error) {
189	if !p.HasMorePages() {
190		return nil, fmt.Errorf("no more pages available")
191	}
192
193	params := *p.params
194	params.NextToken = p.nextToken
195
196	var limit *int32
197	if p.options.Limit > 0 {
198		limit = &p.options.Limit
199	}
200	params.MaxResults = limit
201
202	result, err := p.client.GetUserDefinedFunctions(ctx, &params, optFns...)
203	if err != nil {
204		return nil, err
205	}
206	p.firstPage = false
207
208	prevToken := p.nextToken
209	p.nextToken = result.NextToken
210
211	if p.options.StopOnDuplicateToken && prevToken != nil && p.nextToken != nil && *prevToken == *p.nextToken {
212		p.nextToken = nil
213	}
214
215	return result, nil
216}
217
218func newServiceMetadataMiddleware_opGetUserDefinedFunctions(region string) *awsmiddleware.RegisterServiceMetadata {
219	return &awsmiddleware.RegisterServiceMetadata{
220		Region:        region,
221		ServiceID:     ServiceID,
222		SigningName:   "glue",
223		OperationName: "GetUserDefinedFunctions",
224	}
225}
226