58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
package feeder
|
|
|
|
type databaseHandler struct {
|
|
db *database
|
|
itemhandler ItemHandler
|
|
chanhandler ChannelHandler
|
|
}
|
|
|
|
func (d *databaseHandler) ProcessItems(f *Feed, ch *Channel, items []*Item) {
|
|
var newitems []*Item
|
|
for _, item := range items {
|
|
if d.db.request <- item.Key(); !<-d.db.response {
|
|
newitems = append(newitems, item)
|
|
}
|
|
}
|
|
if len(newitems) > 0 && d.itemhandler != nil {
|
|
d.itemhandler.ProcessItems(f, ch, newitems)
|
|
}
|
|
|
|
// No items to process, may as well end here
|
|
}
|
|
|
|
func (d *databaseHandler) ProcessChannels(f *Feed, ch []*Channel) {
|
|
var newchannels []*Channel
|
|
for _, channel := range ch {
|
|
if d.db.request <- channel.Key(); !<-d.db.response {
|
|
newchannels = append(newchannels, channel)
|
|
}
|
|
}
|
|
if len(newchannels) > 0 && d.chanhandler != nil {
|
|
d.chanhandler.ProcessChannels(f, newchannels)
|
|
}
|
|
|
|
// No channels to process, may as well end here
|
|
}
|
|
|
|
func NewDatabaseHandler(handler Handler) Handler {
|
|
database := new(databaseHandler)
|
|
database.db = NewDatabase()
|
|
database.itemhandler = handler
|
|
database.chanhandler = handler
|
|
return database
|
|
}
|
|
|
|
func NewDatabaseItemHandler(itemhandler ItemHandler) ItemHandler {
|
|
database := new(databaseHandler)
|
|
database.db = NewDatabase()
|
|
database.itemhandler = itemhandler
|
|
return database
|
|
}
|
|
|
|
func NewDatabaseChannelHandler(chanhandler ChannelHandler) ChannelHandler {
|
|
database := new(databaseHandler)
|
|
database.db = NewDatabase()
|
|
database.chanhandler = chanhandler
|
|
return database
|
|
}
|