54 lines
1.5 KiB
Go
54 lines
1.5 KiB
Go
package neutrinonotify
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import (
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"errors"
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"fmt"
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"github.com/lightninglabs/neutrino"
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"github.com/lightningnetwork/lnd/chainntnfs"
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)
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// createNewNotifier creates a new instance of the ChainNotifier interface
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// implemented by NeutrinoNotifier.
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func createNewNotifier(args ...interface{}) (chainntnfs.ChainNotifier, error) {
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if len(args) != 2 {
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return nil, fmt.Errorf("incorrect number of arguments to "+
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".New(...), expected 2, instead passed %v", len(args))
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}
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config, ok := args[0].(*neutrino.ChainService)
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if !ok {
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return nil, errors.New("first argument to neutrinonotify.New " +
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"is incorrect, expected a *neutrino.ChainService")
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}
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spendHintCache, ok := args[1].(chainntnfs.SpendHintCache)
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if !ok {
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return nil, errors.New("second argument to neutrinonotify.New " +
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"is incorrect, expected a chainntfs.SpendHintCache")
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}
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confirmHintCache, ok := args[2].(chainntnfs.ConfirmHintCache)
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if !ok {
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return nil, errors.New("third argument to neutrinonotify.New " +
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"is incorrect, expected a chainntfs.ConfirmHintCache")
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}
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return New(config, spendHintCache, confirmHintCache)
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}
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// init registers a driver for the NeutrinoNotify concrete implementation of
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// the chainntnfs.ChainNotifier interface.
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func init() {
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// Register the driver.
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notifier := &chainntnfs.NotifierDriver{
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NotifierType: notifierType,
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New: createNewNotifier,
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}
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if err := chainntnfs.RegisterNotifier(notifier); err != nil {
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panic(fmt.Sprintf("failed to register notifier driver '%s': %v",
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notifierType, err))
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}
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}
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