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
|
/*
* This file is part of caronte (https://github.com/eciavatta/caronte).
* Copyright (c) 2020 Emiliano Ciavatta.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package main
import (
"context"
"errors"
"sync"
log "github.com/sirupsen/logrus"
)
type Service struct {
Port uint16 `json:"port" bson:"_id"`
Name string `json:"name" binding:"min=3" bson:"name"`
Color string `json:"color" binding:"hexcolor" bson:"color"`
Notes string `json:"notes" bson:"notes"`
}
type ServicesController struct {
storage Storage
services map[uint16]Service
mutex sync.Mutex
}
func NewServicesController(storage Storage) *ServicesController {
var result []Service
if err := storage.Find(Services).All(&result); err != nil {
log.WithError(err).Panic("failed to retrieve services")
return nil
}
services := make(map[uint16]Service, len(result))
for _, service := range result {
services[service.Port] = service
}
return &ServicesController{
storage: storage,
services: services,
}
}
func (sc *ServicesController) SetService(c context.Context, service Service) error {
sc.mutex.Lock()
defer sc.mutex.Unlock()
var upsert interface{}
updated, err := sc.storage.Update(Services).Context(c).Filter(OrderedDocument{{"_id", service.Port}}).
Upsert(&upsert).One(service)
if err != nil {
return errors.New("duplicate name")
}
if updated || upsert != nil {
sc.services[service.Port] = service
}
return nil
}
func (sc *ServicesController) GetServices() map[uint16]Service {
sc.mutex.Lock()
services := make(map[uint16]Service, len(sc.services))
for _, service := range sc.services {
services[service.Port] = service
}
sc.mutex.Unlock()
return services
}
func (sc *ServicesController) DeleteService(c context.Context, service Service) error {
sc.mutex.Lock()
defer sc.mutex.Unlock()
if err := sc.storage.Delete(Services).Context(c).Filter(OrderedDocument{{"_id", service.Port}}).
One(); err != nil {
return errors.New(err.Error())
} else {
delete(sc.services, service.Port)
return nil
}
}
|
