/
keeper.go
115 lines (98 loc) · 2.94 KB
/
keeper.go
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package keeper
import (
"fmt"
wasmkeeper "github.com/CosmWasm/wasmd/x/wasm/keeper"
wasmtypes "github.com/CosmWasm/wasmd/x/wasm/types"
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
paramstypes "github.com/cosmos/cosmos-sdk/x/params/types"
iidkeeper "github.com/ixofoundation/ixo-blockchain/v2/x/iid/keeper"
"github.com/ixofoundation/ixo-blockchain/v2/x/token/types"
"github.com/tendermint/tendermint/libs/log"
)
type Keeper struct {
cdc codec.BinaryCodec
storeKey sdk.StoreKey
memKey sdk.StoreKey
IidKeeper iidkeeper.Keeper
WasmKeeper wasmtypes.ContractOpsKeeper
ParamSpace paramstypes.Subspace
}
func NewKeeper(cdc codec.BinaryCodec, key, memKey sdk.StoreKey, iidKeeper iidkeeper.Keeper, wasmKeeper wasmkeeper.Keeper,
paramSpace paramstypes.Subspace) Keeper {
if !paramSpace.HasKeyTable() {
paramSpace = paramSpace.WithKeyTable(types.ParamKeyTable())
}
return Keeper{
cdc: cdc,
storeKey: key,
memKey: memKey,
IidKeeper: iidKeeper,
WasmKeeper: wasmkeeper.NewDefaultPermissionKeeper(wasmKeeper),
ParamSpace: paramSpace,
}
}
// GetParams returns the total set of project parameters.
func (k Keeper) GetParams(ctx sdk.Context) (params types.Params) {
k.ParamSpace.GetParamSet(ctx, ¶ms)
return params
}
// SetParams sets the total set of project parameters.
func (k Keeper) SetParams(ctx sdk.Context, params *types.Params) {
k.ParamSpace.SetParamSet(ctx, params)
}
func (k Keeper) Logger(ctx sdk.Context) log.Logger {
return ctx.Logger().With("module", fmt.Sprintf("x/%s", types.ModuleName))
}
// UnmarshalFn is a generic function to unmarshal bytes
type UnmarshalFn func(value []byte) (interface{}, bool)
// MarshalFn is a generic function to marshal bytes
type MarshalFn func(value interface{}) []byte
// Set sets a value in the db with a prefixed key
func (k Keeper) Set(ctx sdk.Context,
key []byte,
prefix []byte,
i interface{},
marshal MarshalFn,
) {
store := ctx.KVStore(k.storeKey)
store.Set(append(prefix, key...), marshal(i))
}
// Delete - deletes a value form the store
func (k Keeper) Delete(
ctx sdk.Context,
key []byte,
prefix []byte,
) {
store := ctx.KVStore(k.storeKey)
store.Delete(append(prefix, key...))
}
// Get gets an item from the store by bytes
func (k Keeper) Get(
ctx sdk.Context,
key []byte,
prefix []byte,
unmarshal UnmarshalFn,
) (i interface{}, found bool) {
store := ctx.KVStore(k.storeKey)
value := store.Get(append(prefix, key...))
return unmarshal(value)
}
// GetAll values from with a prefix from the store
func (k Keeper) GetAll(
ctx sdk.Context,
prefix []byte,
) sdk.Iterator {
store := ctx.KVStore(k.storeKey)
return sdk.KVStorePrefixIterator(store, prefix)
}
// Unmarshal unmarshal a byte slice to a struct, return false in case of errors
func (k Keeper) Unmarshal(data []byte, val codec.ProtoMarshaler) bool {
if len(data) == 0 {
return false
}
if err := k.cdc.Unmarshal(data, val); err != nil {
return false
}
return true
}