cosmos-sdk/x/consensus/keeper/keeper.go

59 lines
1.4 KiB
Go

package keeper
import (
tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
"github.com/cosmos/cosmos-sdk/codec"
storetypes "github.com/cosmos/cosmos-sdk/store/types"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/x/consensus/exported"
"github.com/cosmos/cosmos-sdk/x/consensus/types"
)
var _ exported.ConsensusParamSetter = (*Keeper)(nil)
type Keeper struct {
storeKey storetypes.StoreKey
cdc codec.BinaryCodec
authority string
}
func NewKeeper(cdc codec.BinaryCodec, storeKey storetypes.StoreKey, authority string) Keeper {
return Keeper{
storeKey: storeKey,
cdc: cdc,
authority: authority,
}
}
func (k *Keeper) GetAuthority() string {
return k.authority
}
// Get gets the consensus parameters
func (k *Keeper) Get(ctx sdk.Context) (*tmproto.ConsensusParams, error) {
store := ctx.KVStore(k.storeKey)
cp := &tmproto.ConsensusParams{}
bz := store.Get(types.ParamStoreKeyConsensusParams)
if err := k.cdc.Unmarshal(bz, cp); err != nil {
return nil, err
}
return cp, nil
}
func (k *Keeper) Has(ctx sdk.Context) bool {
store := ctx.KVStore(k.storeKey)
return store.Has(types.ParamStoreKeyConsensusParams)
}
// Set sets the consensus parameters
func (k *Keeper) Set(ctx sdk.Context, cp *tmproto.ConsensusParams) {
store := ctx.KVStore(k.storeKey)
store.Set(types.ParamStoreKeyConsensusParams, k.cdc.MustMarshal(cp))
}