0262a99321
* This was causing issues in future tests, since the subscription was causing blocks and transactions to be added to the DB
38 lines
955 B
Go
38 lines
955 B
Go
package blockchain_listener
|
|
|
|
import "github.com/8thlight/vulcanizedb/core"
|
|
|
|
type BlockchainListener struct {
|
|
inputBlocks chan core.Block
|
|
blockchain core.Blockchain
|
|
observers []core.BlockchainObserver
|
|
}
|
|
|
|
func NewBlockchainListener(blockchain core.Blockchain, observers []core.BlockchainObserver) BlockchainListener {
|
|
inputBlocks := make(chan core.Block, 10)
|
|
blockchain.SubscribeToBlocks(inputBlocks)
|
|
listener := BlockchainListener{
|
|
inputBlocks: inputBlocks,
|
|
blockchain: blockchain,
|
|
observers: observers,
|
|
}
|
|
return listener
|
|
}
|
|
|
|
func (listener BlockchainListener) Start() {
|
|
go listener.blockchain.StartListening()
|
|
for block := range listener.inputBlocks {
|
|
listener.notifyObservers(block)
|
|
}
|
|
}
|
|
|
|
func (listener BlockchainListener) notifyObservers(block core.Block) {
|
|
for _, observer := range listener.observers {
|
|
observer.NotifyBlockAdded(block)
|
|
}
|
|
}
|
|
|
|
func (listener BlockchainListener) Stop() {
|
|
listener.blockchain.StopListening()
|
|
}
|