-
Notifications
You must be signed in to change notification settings - Fork 0
/
dvhooks.go
91 lines (81 loc) · 2.65 KB
/
dvhooks.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
/***********************************************************************
MicroCore
Copyright 2020 - 2020 by Danyil Dobryvechir (dobrivecher@yahoo.com ddobryvechir@gmail.com)
************************************************************************/
package dvmodules
const (
HookStartEvent = "START"
)
type HookMethodEndPointHandler func(eventName string, data []interface{}) error
type HookRegistrationConfig struct {
Name string
HookEventMapper map[string]HookMethodEndPointHandler
GlobalInitHandler MethodGlobalInitHandler
ServerInitHandler MethodServerInitHandler
}
var hookRegisteredConfigs = make(map[string]*HookRegistrationConfig)
var hookRegisteredEvents = make(map[string][]*HookRegistrationConfig)
func SubscribeForEvents(config *HookRegistrationConfig, silent bool) bool {
name := config.Name
if _, ok := hookRegisteredConfigs[name]; ok {
if silent {
return false
}
panic("Hook with name " + name + " already registered")
}
hookRegisteredConfigs[name] = config
if config.HookEventMapper != nil {
for eventName, handler := range config.HookEventMapper {
if handler != nil {
if hookRegisteredEvents[eventName] == nil {
hookRegisteredEvents[eventName] = make([]*HookRegistrationConfig, 1, 3)
hookRegisteredEvents[eventName][0] = config
} else {
hookRegisteredEvents[eventName] = append(hookRegisteredEvents[eventName], config)
}
}
}
}
return true
}
func GetRegisteredHookConfig(name string, silent bool) *HookRegistrationConfig {
config, ok := hookRegisteredConfigs[name]
if !silent && !ok {
panic("Hook with name " + name + " is not present")
}
return config
}
func MakeHookGlobalInitialization(moduleInits map[string]map[string]string) {
if moduleInits == nil {
return
}
for moduleName, moduleGlobalValues := range moduleInits {
config := GetRegisteredHookConfig(moduleName, false)
if config.GlobalInitHandler != nil {
if err := config.GlobalInitHandler(moduleGlobalValues); err != nil {
panic("Incorrect module " + moduleName + "'s global parameters:" + err.Error())
}
} else if moduleGlobalValues != nil {
panic("Hook " + moduleName + " has no global values to be initialized, but you specified them in the config")
}
}
}
func FireHookEvent(eventName string, data []interface{}) error {
hooks := hookRegisteredEvents[eventName]
n := len(hooks)
for i := 0; i < n; i++ {
if hooks[i].HookEventMapper != nil {
handler := hooks[i].HookEventMapper[eventName]
if handler != nil {
err := handler(eventName, data)
if err != nil {
return err
}
}
}
}
return nil
}
func FireStartHookEvent(data []interface{}) error {
return FireHookEvent(HookStartEvent, data)
}