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data.go
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data.go
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// Copyright (C) 2023 Gobalsky Labs Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//lint:file-ignore ST1003 Ignore underscores in names, this is straigh copied from the proto package to ease introducing the domain types
package common
import (
"fmt"
"code.vegaprotocol.io/vega/libs/num"
"code.vegaprotocol.io/vega/logging"
"go.uber.org/zap"
)
// Data holds normalized data coming from an oracle.
type Data struct {
// EthKey is currently just the spec id, which is suboptimal as multiple specs calling the same
// contracts at the same time will duplicate data. This is a temporary solution until we have
// a better method of making a key of (contract address, args, block height/time + previous height/time)
// 'previous' being required so that receivers can check if the their trigger would have fired.
EthKey string
Signers []*Signer
Data map[string]string
MetaData map[string]string
}
func (d Data) GetUint(name string) (*num.Uint, error) {
value, ok := d.Data[name]
if !ok {
return nil, errPropertyNotFound(name)
}
val, fail := num.UintFromString(value, 10)
if fail {
return nil, errInvalidString(name, value)
}
return val, nil
}
// GetInteger converts the value associated to propertyName into an integer.
func (d Data) GetInteger(propertyName string) (*num.Int, error) {
value, ok := d.Data[propertyName]
if !ok {
return num.IntZero(), errPropertyNotFound(propertyName)
}
return ToInteger(value)
}
// GetDecimal converts the value associated to propertyName into a decimal.
func (d Data) GetDecimal(propertyName string) (num.Decimal, error) {
value, ok := d.Data[propertyName]
if !ok {
return num.DecimalZero(), errPropertyNotFound(propertyName)
}
return ToDecimal(value)
}
// GetBoolean converts the value associated to propertyName into a boolean.
func (d Data) GetBoolean(propertyName string) (bool, error) {
value, ok := d.Data[propertyName]
if !ok {
return false, errPropertyNotFound(propertyName)
}
return ToBoolean(value)
}
// GetString returns the value associated to propertyName.
func (d Data) GetString(propertyName string) (string, error) {
value, ok := d.Data[propertyName]
if !ok {
return "", errPropertyNotFound(propertyName)
}
return value, nil
}
// GetTimestamp converts the value associated to propertyName into a timestamp.
func (d Data) GetTimestamp(propertyName string) (int64, error) {
value, ok := d.Data[propertyName]
if !ok {
return 0, errPropertyNotFound(propertyName)
}
return ToTimestamp(value)
}
// FromInternalOracle returns true if the oracle data has been emitted by an
// internal oracle.
func (d Data) FromInternalOracle() bool {
return len(d.Signers) == 0
}
func (d Data) Debug() []zap.Field {
keys := ""
for _, key := range d.Signers {
keys += key.String() + " "
}
fields := []zap.Field{
logging.String("Signers", keys),
}
for property, value := range d.Data {
fields = append(fields, logging.String(property, value))
}
return fields
}
// errPropertyNotFound is returned when the property is not present in the Data.
func errPropertyNotFound(propertyName string) error {
return fmt.Errorf("property \"%s\" not found", propertyName)
}
func errInvalidString(name, val string) error {
return fmt.Errorf("could not parse value '%s' for property '%s'", val, name)
}