62 lines
1.3 KiB
Go
62 lines
1.3 KiB
Go
package params
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import (
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"fmt"
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"github.com/cosmos/cosmos-sdk/codec"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/x/params/subspace"
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"github.com/cosmos/cosmos-sdk/x/params/types"
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"github.com/tendermint/tendermint/libs/log"
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)
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// Keeper of the global paramstore
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type Keeper struct {
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cdc codec.Marshaler
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key sdk.StoreKey
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tkey sdk.StoreKey
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spaces map[string]*Subspace
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}
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// NewKeeper constructs a params keeper
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func NewKeeper(cdc codec.Marshaler, key, tkey sdk.StoreKey) Keeper {
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return Keeper{
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cdc: cdc,
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key: key,
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tkey: tkey,
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spaces: make(map[string]*Subspace),
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}
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}
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// Logger returns a module-specific logger.
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func (k Keeper) Logger(ctx sdk.Context) log.Logger {
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return ctx.Logger().With("module", fmt.Sprintf("x/%s", types.ModuleName))
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}
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// Allocate subspace used for keepers
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func (k Keeper) Subspace(s string) Subspace {
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_, ok := k.spaces[s]
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if ok {
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panic("subspace already occupied")
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}
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if s == "" {
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panic("cannot use empty string for subspace")
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}
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space := subspace.NewSubspace(k.cdc, k.key, k.tkey, s)
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k.spaces[s] = &space
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return space
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}
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// Get existing substore from keeper
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func (k Keeper) GetSubspace(s string) (Subspace, bool) {
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space, ok := k.spaces[s]
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if !ok {
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return Subspace{}, false
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}
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return *space, ok
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}
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