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package types
import (
"bytes"
"fmt"
"io"
. "github.com/tendermint/tmlibs/common"
"github.com/tendermint/go-crypto"
"github.com/tendermint/go-wire"
)
// Volatile state for each Validator
// TODO: make non-volatile identity
// - Remove Accum - it can be computed, and now valset becomes identifying
type Validator struct {
Address []byte `json:"address"`
PubKey crypto.PubKey `json:"pub_key"`
VotingPower int64 `json:"voting_power"`
Accum int64 `json:"accum"`
}
func NewValidator(pubKey crypto.PubKey, votingPower int64) *Validator {
return &Validator{
Address: pubKey.Address(),
PubKey: pubKey,
VotingPower: votingPower,
Accum: 0,
}
}
// Creates a new copy of the validator so we can mutate accum.
// Panics if the validator is nil.
func (v *Validator) Copy() *Validator {
vCopy := *v
return &vCopy
}
// Returns the one with higher Accum.
func (v *Validator) CompareAccum(other *Validator) *Validator {
if v == nil {
return other
}
if v.Accum > other.Accum {
return v
} else if v.Accum < other.Accum {
return other
} else {
if bytes.Compare(v.Address, other.Address) < 0 {
return v
} else if bytes.Compare(v.Address, other.Address) > 0 {
return other
} else {
PanicSanity("Cannot compare identical validators")
return nil
}
}
}
func (v *Validator) String() string {
if v == nil {
return "nil-Validator"
}
return fmt.Sprintf("Validator{%X %v VP:%v A:%v}",
v.Address,
v.PubKey,
v.VotingPower,
v.Accum)
}
func (v *Validator) Hash() []byte {
return wire.BinaryRipemd160(v)
}
//-------------------------------------
var ValidatorCodec = validatorCodec{}
type validatorCodec struct{}
func (vc validatorCodec) Encode(o interface{}, w io.Writer, n *int, err *error) {
wire.WriteBinary(o.(*Validator), w, n, err)
}
func (vc validatorCodec) Decode(r io.Reader, n *int, err *error) interface{} {
return wire.ReadBinary(&Validator{}, r, 0, n, err)
}
func (vc validatorCodec) Compare(o1 interface{}, o2 interface{}) int {
PanicSanity("ValidatorCodec.Compare not implemented")
return 0
}
//--------------------------------------------------------------------------------
// For testing...
func RandValidator(randPower bool, minPower int64) (*Validator, *PrivValidator) {
privVal := GenPrivValidator()
_, tempFilePath := Tempfile("priv_validator_")
privVal.SetFile(tempFilePath)
votePower := minPower
if randPower {
votePower += int64(RandUint32())
}
val := NewValidator(privVal.PubKey, votePower)
return val, privVal
}