/
eventProviderMeta.go
66 lines (59 loc) · 1.43 KB
/
eventProviderMeta.go
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package base
type EventDef struct {
Name string
Details map[string]interface{}
}
type EventProviderMetadata interface {
MetaData
AllEvents() []EventDef
Event(s string) (EventDef, bool)
}
type eventProviderMetadata struct {
MetaData
events []EventDef
}
func (epm eventProviderMetadata) AllEvents() []EventDef {
return epm.events
}
func (epm eventProviderMetadata) Event(s string) (e EventDef, ok bool) {
for _, ed := range epm.events {
if ed.Name == s {
return ed, true
}
}
return
}
func eventProviderMetadataBuilder(s string, ms ...MetaDataSetting) []MetaDataSetting {
newEPM := &eventProviderMetadata{
events: make([]EventDef, 0),
}
selector := func(mds MetaDataSetting) bool {
switch item := mds.(type) {
case MDSettingEventDef:
newEPM.events = append(newEPM.events, item.EventDef)
return true
}
return true
}
parentSettings := SelectMetadataSettings(ms, selector)
parentSettings = append(
parentSettings,
MDSettingCallback{1,
func(m MetaData, pre MetaData) MetaData {
newEPM.MetaData = m
if preEPM, ok := pre.(EventProviderMetadata); ok {
newEPM.events = append(newEPM.events, preEPM.AllEvents()...)
}
return newEPM
},
},
)
return parentSettings
}
func constructEventProvider(m MetaData, embbed Constructor) Constructor {
epm := m.(EventProviderMetadata)
return func(id string, is ...InstanceSetting) Object {
ep := createEventProvider(id, epm, embbed, is...)
return ep
}
}