-
Notifications
You must be signed in to change notification settings - Fork 205
/
supported_services.go
160 lines (149 loc) · 4.73 KB
/
supported_services.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
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
package types
import (
"fmt"
"sort"
)
type EndpointService struct {
ApiInterface string
Addon string
Extension string
}
func (es *EndpointService) String() string {
st := es.ApiInterface
if es.Addon != "" {
st = st + " " + es.Addon
}
return st
}
func (endpoint *Endpoint) isSupportedExtension(extension string) bool {
if extension == "" {
return true
}
if len(endpoint.Extensions) > 0 {
for _, endpointExtension := range endpoint.Extensions {
if endpointExtension == extension {
return true
}
}
}
return false
}
func (endpoint *Endpoint) IsSupportedService(apiInterface, addon, extension string) bool {
for _, endpointApiInterface := range endpoint.ApiInterfaces {
// always support the base addons
if addon == "" && endpointApiInterface == apiInterface {
if endpoint.isSupportedExtension(extension) {
return true
}
} else if addon != "" {
// only check addons if the requested addon is not empty
for _, endpointAddon := range endpoint.Addons {
if endpointAddon == addon && endpointApiInterface == apiInterface {
if endpoint.isSupportedExtension(extension) {
return true
}
}
}
}
}
return false
}
// users are allowed to stake with an empty list of apiInterfaces, this code supports adding the default ones in that case
func (endpoint *Endpoint) SetDefaultApiInterfaces(requiredServices map[EndpointService]struct{}) {
if len(endpoint.ApiInterfaces) != 0 {
return
}
for endpointService := range requiredServices {
if endpointService.Addon != "" {
// only required ones are taken into account
continue
}
endpoint.ApiInterfaces = append(endpoint.ApiInterfaces, endpointService.ApiInterface)
}
sort.Strings(endpoint.ApiInterfaces)
}
// users are allowed to send apiInterfaces inside the addons list, this code supports that
func (endpoint *Endpoint) SetServicesFromAddons(allowedServices map[EndpointService]struct{}, addons, extensions map[string]struct{}) error {
newAddons := []string{}
newExtensions := []string{}
existingApiInterfaces := map[string]struct{}{}
for _, apiInterface := range endpoint.ApiInterfaces {
existingApiInterfaces[apiInterface] = struct{}{}
}
for _, addon := range endpoint.Addons {
if _, ok := existingApiInterfaces[addon]; ok {
continue
}
service := EndpointService{
ApiInterface: addon, // we check if the addon is actually an ApiInterface
Addon: "", // intentionally don't set the addon here to check if it's an api interface
Extension: "",
}
if _, ok := allowedServices[service]; ok {
// means this is an apiInterface and not an addon
endpoint.ApiInterfaces = append(endpoint.ApiInterfaces, addon)
} else {
// it's not an apiInterface
if _, ok := addons[addon]; ok {
newAddons = append(newAddons, addon)
} else if _, ok := extensions[addon]; ok {
newExtensions = append(newExtensions, addon)
} else {
// not an addon, not an extension, not an apiInterface
return fmt.Errorf("unknown service %s not found in spec services %+v", addon, allowedServices)
}
}
}
endpoint.Addons = newAddons
endpoint.Extensions = append(endpoint.Extensions, newExtensions...)
return nil
}
func (endpoint *Endpoint) GetSupportedServices() (services []EndpointService) {
seen := map[EndpointService]struct{}{}
for _, apiInterface := range endpoint.ApiInterfaces {
// always support the base addons
addons := append([]string{""}, endpoint.Addons...)
// always support no extensions
extensions := append([]string{""}, endpoint.Extensions...)
for _, addon := range addons {
if addon == apiInterface {
// will be used to remove an apiInterface from the base supported
continue
}
for _, extension := range extensions {
service := EndpointService{
ApiInterface: apiInterface,
Addon: addon,
Extension: extension,
}
if _, ok := seen[service]; !ok {
services = append(services, service)
seen[service] = struct{}{}
}
}
}
}
return services
}
// can be used for both addon and a single extension
func (stakeEntry *StakeEntry) GetEndpointsSupportingService(apiInterface, addon, extension string) (endpoints []*Endpoint) {
for idx, endpoint := range stakeEntry.Endpoints {
if endpoint.IsSupportedService(apiInterface, addon, extension) {
endpoints = append(endpoints, &stakeEntry.Endpoints[idx])
}
}
return endpoints
}
func (stakeEntry *StakeEntry) GetSupportedServices() (services []EndpointService) {
existing := map[EndpointService]struct{}{}
for _, endpoint := range stakeEntry.Endpoints {
endpointServices := endpoint.GetSupportedServices()
for _, service := range endpointServices {
if _, ok := existing[service]; !ok {
existing[service] = struct{}{}
services = append(services, service)
}
}
}
return services
}