/
utils.go
86 lines (72 loc) · 2.34 KB
/
utils.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
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
// Copyright 2019 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 util contains helper functions for mapping unit tests.
package util
import (
"context"
"encoding/json"
"fmt"
"net/url"
"regexp"
"github.com/GoogleCloudPlatform/healthcare-data-harmonization/mapping_engine/util/jsonutil" /* copybara-comment: jsonutil */
"bitbucket.org/creachadair/stringset" /* copybara-comment: stringset */
)
var urlParse = regexp.MustCompile(`fhir/([^/]+)(?:/([^?#/]+))?`)
// SearchResources implements auth.Client's SearchResources function.
func SearchResources(ctx context.Context, dataset jsonutil.JSONToken, address string, method string) (*json.RawMessage, error) {
arr, ok := dataset.(jsonutil.JSONArr)
if !ok {
j, err := json.Marshal(dataset)
msg := json.RawMessage(j)
return &msg, err
}
pa, err := url.Parse(address)
if err != nil {
return nil, fmt.Errorf("failed to parse URL %s: %v", address, err)
}
var matchingResources jsonutil.JSONArr
searchParams := pa.Query()
urlPathParams := urlParse.FindStringSubmatch(pa.Path)
if urlPathParams[1] != "" {
searchParams["resourceType"] = []string{urlPathParams[1]}
}
if urlPathParams[2] != "" {
searchParams["id"] = []string{urlPathParams[2]}
}
for _, res := range arr {
match := true
for k, vs := range searchParams {
valueSet := stringset.New(vs...)
v, err := jsonutil.GetField(res, k)
if v, ok := v.(jsonutil.JSONStr); err != nil || !ok || !valueSet.Contains(string(v)) {
match = false
break
}
}
if match {
matchingResources = append(matchingResources, res)
}
}
var res jsonutil.JSONToken = matchingResources
if len(matchingResources) == 0 {
msg := json.RawMessage(`{}`)
return &msg, nil
}
if len(matchingResources) == 1 {
res = matchingResources[0]
}
resj, err := json.Marshal(res)
msg := json.RawMessage(resj)
return &msg, err
}