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msg.go
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msg.go
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package oracle
import (
"encoding/json"
"fmt"
sdk "github.com/cosmos/cosmos-sdk/types"
)
const (
// Precision of Oracle vote
OracleDecPrec = 2
// RouterKey is they name of the oracle module
RouterKey = "oracle"
)
//-------------------------------------------------
//-------------------------------------------------
// PriceFeedMsg - struct for voting on payloads. Note that the Price
// is denominated in Luna. All validators must vote on Terra prices.
type PriceFeedMsg struct {
Denom string
Price sdk.Dec // in Luna
Feeder sdk.AccAddress
}
// NewPriceFeedMsg creates a PriceFeedMsg instance
func NewPriceFeedMsg(denom string, price sdk.Dec, feederAddress sdk.AccAddress) PriceFeedMsg {
return PriceFeedMsg{
Denom: denom,
Price: price,
Feeder: feederAddress,
}
}
// Route Implements Msg
func (msg PriceFeedMsg) Route() string { return "oracle" }
// Type implements sdk.Msg
func (msg PriceFeedMsg) Type() string { return "pricefeed" }
// GetSignBytes implements sdk.Msg
func (msg PriceFeedMsg) GetSignBytes() []byte {
bz, err := json.Marshal(msg)
if err != nil {
panic(err)
}
return sdk.MustSortJSON(bz)
}
// GetSigners implements sdk.Msg
func (msg PriceFeedMsg) GetSigners() []sdk.AccAddress {
return []sdk.AccAddress{msg.Feeder}
}
// ValidateBasic Implements sdk.Msg
func (msg PriceFeedMsg) ValidateBasic() sdk.Error {
if len(msg.Denom) == 0 {
return ErrUnknownDenomination(DefaultCodespace, "")
}
if len(msg.Feeder) == 0 {
return sdk.ErrInvalidAddress("Invalid address: " + msg.Feeder.String())
}
if msg.Price.LTE(sdk.ZeroDec()) {
return ErrInvalidPrice(DefaultCodespace, msg.Price)
}
return nil
}
// String Implements sdk.Msg
func (msg PriceFeedMsg) String() string {
return fmt.Sprintf("PriceFeedMsg{feeder: %v, denom: %v, price: %v}",
msg.Feeder, msg.Denom, msg.Price)
}