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Update for latest btcjson API changes.

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This commit modifies the AllVerboseTxNtfn command to use a parser along
with the standard btcjson.RegisterCustomCmd instead of the now removed
RegisterCustomCmdGenerator function.  This is possible due to the recent
changes that defers the unmarshalling of the parameters of a RawCmd to the
parser.
This commit is contained in:
Dave Collins 2014-04-11 09:16:58 -05:00
parent 6f08ca8a8a
commit fc07555ad3
1 changed files with 29 additions and 17 deletions
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46
notifications.go
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@ -85,8 +85,8 @@ func init() {
parseWalletLockStateNtfn, `TODO(jrick) fillmein`) parseWalletLockStateNtfn, `TODO(jrick) fillmein`)
btcjson.RegisterCustomCmd(AllTxNtfnMethod, btcjson.RegisterCustomCmd(AllTxNtfnMethod,
parseAllTxNtfn, `TODO(flam) fillmein`) parseAllTxNtfn, `TODO(flam) fillmein`)
btcjson.RegisterCustomCmdGenerator(AllVerboseTxNtfnMethod, btcjson.RegisterCustomCmd(AllVerboseTxNtfnMethod,
generateAllVerboseTxNtfn) parseAllVerboseTxNtfn, `TODO(flam) fillmein`)
} }
// BlockDetails describes details of a tx in a block. // BlockDetails describes details of a tx in a block.
@ -1099,6 +1099,26 @@ func NewAllVerboseTxNtfn(rawTx *btcjson.TxRawResult) *AllVerboseTxNtfn {
} }
} }
// parseAllVerboseTxNtfn parses a RawCmd into a concrete type satisifying
// the btcjson.Cmd interface. This is used when registering the notification
// with the btcjson parser.
func parseAllVerboseTxNtfn(r *btcjson.RawCmd) (btcjson.Cmd, error) {
if r.Id != nil {
return nil, ErrNotANtfn
}
if len(r.Params) != 1 {
return nil, btcjson.ErrWrongNumberOfParams
}
var rawTx *btcjson.TxRawResult
if err := json.Unmarshal(r.Params[0], &rawTx); err != nil {
return nil, err
}
return NewAllVerboseTxNtfn(rawTx), nil
}
// Id satisifies the btcjson.Cmd interface by returning nil for a // Id satisifies the btcjson.Cmd interface by returning nil for a
// notification ID. // notification ID.
func (n *AllVerboseTxNtfn) Id() interface{} { func (n *AllVerboseTxNtfn) Id() interface{} {
@ -1130,10 +1150,6 @@ func (n *AllVerboseTxNtfn) MarshalJSON() ([]byte, error) {
return json.Marshal(raw) return json.Marshal(raw)
} }
func generateAllVerboseTxNtfn() btcjson.Cmd {
return new(AllVerboseTxNtfn)
}
// UnmarshalJSON unmarshals the JSON encoding of n into n. Part of // UnmarshalJSON unmarshals the JSON encoding of n into n. Part of
// the btcjson.Cmd interface. // the btcjson.Cmd interface.
func (n *AllVerboseTxNtfn) UnmarshalJSON(b []byte) error { func (n *AllVerboseTxNtfn) UnmarshalJSON(b []byte) error {
@ -1142,19 +1158,15 @@ func (n *AllVerboseTxNtfn) UnmarshalJSON(b []byte) error {
return err return err
} }
if r.Id != nil { newNtfn, err := parseAllVerboseTxNtfn(&r)
return ErrNotANtfn if err != nil {
}
if len(r.Params) != 1 {
return btcjson.ErrWrongNumberOfParams
}
var rawTx *btcjson.TxRawResult
if err := json.Unmarshal(r.Params[0], &rawTx); err != nil {
return err return err
} }
*n = *NewAllVerboseTxNtfn(rawTx) concreteNtfn, ok := newNtfn.(*AllVerboseTxNtfn)
if !ok {
return btcjson.ErrInternal
}
*n = *concreteNtfn
return nil return nil
} }