/
filter.go
40 lines (36 loc) · 1.15 KB
/
filter.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
/*
* Copyright (C) 2023 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package terraform
// Filter applies to a map[string]Schema to include data matching a Matcher.
type Filter[S Schema] struct {
matcher Matcher[S]
}
// NewFilter instantiates a Filter from a Matcher.
func NewFilter[S Schema](matcher Matcher[S]) *Filter[S] {
return &Filter[S]{
matcher: matcher,
}
}
// Apply the Filter's Matcher on the data. Returns a map[string]S that satisfies the Matcher.
func (f *Filter[S]) Apply(data map[string]S) map[string]S {
result := map[string]S{}
for k, v := range data {
if f.matcher.Match(k, v) {
result[k] = v
}
}
return result
}