/
keeper.go
65 lines (53 loc) · 1.47 KB
/
keeper.go
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package params
import (
"fmt"
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/maticnetwork/heimdall/params/subspace"
"github.com/maticnetwork/heimdall/params/types"
"github.com/tendermint/tendermint/libs/log"
)
// Keeper of the global paramstore
type Keeper struct {
cdc *codec.Codec
key sdk.StoreKey
tkey sdk.StoreKey
codespace sdk.CodespaceType
spaces map[string]*subspace.Subspace
}
// NewKeeper constructs a params keeper
func NewKeeper(cdc *codec.Codec, key *sdk.KVStoreKey, tkey *sdk.TransientStoreKey, codespace sdk.CodespaceType) (k Keeper) {
k = Keeper{
cdc: cdc,
key: key,
tkey: tkey,
codespace: codespace,
spaces: make(map[string]*subspace.Subspace),
}
return k
}
// Logger returns a module-specific logger.
func (k Keeper) Logger(ctx sdk.Context) log.Logger {
return ctx.Logger().With("module", fmt.Sprintf("x/%s", types.ModuleName))
}
// Subspace allocate subspace used for keepers
func (k Keeper) Subspace(s string) subspace.Subspace {
_, ok := k.spaces[s]
if ok {
panic("subspace already occupied")
}
if s == "" {
panic("cannot use empty string for subspace")
}
space := subspace.NewSubspace(k.cdc, k.key, k.tkey, s)
k.spaces[s] = &space
return space
}
// GetSubspace existing substore from keeper
func (k Keeper) GetSubspace(s string) (subspace.Subspace, bool) {
space, ok := k.spaces[s]
if !ok {
return subspace.Subspace{}, false
}
return *space, ok
}