forked from cosmos/cosmos-sdk
/
app.go
197 lines (166 loc) · 6.15 KB
/
app.go
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package app
import (
"encoding/json"
"os"
abci "github.com/tendermint/tendermint/abci/types"
cmn "github.com/tendermint/tendermint/libs/common"
dbm "github.com/tendermint/tendermint/libs/db"
"github.com/tendermint/tendermint/libs/log"
tmtypes "github.com/tendermint/tendermint/types"
bam "github.com/cosmos/cosmos-sdk/baseapp"
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/x/auth"
"github.com/cosmos/cosmos-sdk/x/bank"
"github.com/cosmos/cosmos-sdk/x/ibc"
"github.com/cosmos/cosmos-sdk/docs/examples/democoin/types"
"github.com/cosmos/cosmos-sdk/docs/examples/democoin/x/cool"
"github.com/cosmos/cosmos-sdk/docs/examples/democoin/x/pow"
"github.com/cosmos/cosmos-sdk/docs/examples/democoin/x/simplestake"
"github.com/cosmos/cosmos-sdk/docs/examples/democoin/x/sketchy"
)
const (
appName = "DemocoinApp"
)
// default home directories for expected binaries
var (
DefaultCLIHome = os.ExpandEnv("$HOME/.democli")
DefaultNodeHome = os.ExpandEnv("$HOME/.democoind")
)
// Extended ABCI application
type DemocoinApp struct {
*bam.BaseApp
cdc *codec.Codec
// keys to access the substores
capKeyMainStore *sdk.KVStoreKey
capKeyAccountStore *sdk.KVStoreKey
capKeyPowStore *sdk.KVStoreKey
capKeyIBCStore *sdk.KVStoreKey
capKeyStakingStore *sdk.KVStoreKey
// keepers
feeCollectionKeeper auth.FeeCollectionKeeper
bankKeeper bank.Keeper
coolKeeper cool.Keeper
powKeeper pow.Keeper
ibcMapper ibc.Mapper
stakeKeeper simplestake.Keeper
// Manage getting and setting accounts
accountKeeper auth.AccountKeeper
}
func NewDemocoinApp(logger log.Logger, db dbm.DB) *DemocoinApp {
// Create app-level codec for txs and accounts.
var cdc = MakeCodec()
// Create your application object.
var app = &DemocoinApp{
BaseApp: bam.NewBaseApp(appName, logger, db, auth.DefaultTxDecoder(cdc)),
cdc: cdc,
capKeyMainStore: sdk.NewKVStoreKey("main"),
capKeyAccountStore: sdk.NewKVStoreKey("acc"),
capKeyPowStore: sdk.NewKVStoreKey("pow"),
capKeyIBCStore: sdk.NewKVStoreKey("ibc"),
capKeyStakingStore: sdk.NewKVStoreKey("stake"),
}
// Define the accountKeeper.
app.accountKeeper = auth.NewAccountKeeper(
cdc,
app.capKeyAccountStore, // target store
types.ProtoAppAccount, // prototype
)
// Add handlers.
app.bankKeeper = bank.NewBaseKeeper(app.accountKeeper)
app.coolKeeper = cool.NewKeeper(app.capKeyMainStore, app.bankKeeper, cool.DefaultCodespace)
app.powKeeper = pow.NewKeeper(app.capKeyPowStore, pow.NewConfig("pow", int64(1)), app.bankKeeper, pow.DefaultCodespace)
app.ibcMapper = ibc.NewMapper(app.cdc, app.capKeyIBCStore, ibc.DefaultCodespace)
app.stakeKeeper = simplestake.NewKeeper(app.capKeyStakingStore, app.bankKeeper, simplestake.DefaultCodespace)
app.Router().
AddRoute("bank", bank.NewHandler(app.bankKeeper)).
AddRoute("cool", cool.NewHandler(app.coolKeeper)).
AddRoute("pow", app.powKeeper.Handler).
AddRoute("sketchy", sketchy.NewHandler()).
AddRoute("ibc", ibc.NewHandler(app.ibcMapper, app.bankKeeper)).
AddRoute("simplestake", simplestake.NewHandler(app.stakeKeeper))
// Initialize BaseApp.
app.SetInitChainer(app.initChainerFn(app.coolKeeper, app.powKeeper))
app.MountStores(app.capKeyMainStore, app.capKeyAccountStore, app.capKeyPowStore, app.capKeyIBCStore, app.capKeyStakingStore)
app.SetAnteHandler(auth.NewAnteHandler(app.accountKeeper, app.feeCollectionKeeper))
err := app.LoadLatestVersion(app.capKeyMainStore)
if err != nil {
cmn.Exit(err.Error())
}
app.Seal()
return app
}
// custom tx codec
func MakeCodec() *codec.Codec {
var cdc = codec.New()
codec.RegisterCrypto(cdc) // Register crypto.
sdk.RegisterCodec(cdc) // Register Msgs
cool.RegisterCodec(cdc)
pow.RegisterCodec(cdc)
bank.RegisterCodec(cdc)
ibc.RegisterCodec(cdc)
simplestake.RegisterCodec(cdc)
// Register AppAccount
cdc.RegisterInterface((*auth.Account)(nil), nil)
cdc.RegisterConcrete(&types.AppAccount{}, "democoin/Account", nil)
cdc.Seal()
return cdc
}
// custom logic for democoin initialization
// nolint: unparam
func (app *DemocoinApp) initChainerFn(coolKeeper cool.Keeper, powKeeper pow.Keeper) sdk.InitChainer {
return func(ctx sdk.Context, req abci.RequestInitChain) abci.ResponseInitChain {
stateJSON := req.AppStateBytes
genesisState := new(types.GenesisState)
err := app.cdc.UnmarshalJSON(stateJSON, genesisState)
if err != nil {
panic(err) // TODO https://github.com/cosmos/cosmos-sdk/issues/468
// return sdk.ErrGenesisParse("").TraceCause(err, "")
}
for _, gacc := range genesisState.Accounts {
acc, err := gacc.ToAppAccount()
if err != nil {
panic(err) // TODO https://github.com/cosmos/cosmos-sdk/issues/468
// return sdk.ErrGenesisParse("").TraceCause(err, "")
}
app.accountKeeper.SetAccount(ctx, acc)
}
// Application specific genesis handling
err = cool.InitGenesis(ctx, app.coolKeeper, genesisState.CoolGenesis)
if err != nil {
panic(err) // TODO https://github.com/cosmos/cosmos-sdk/issues/468
// return sdk.ErrGenesisParse("").TraceCause(err, "")
}
err = pow.InitGenesis(ctx, app.powKeeper, genesisState.POWGenesis)
if err != nil {
panic(err) // TODO https://github.com/cosmos/cosmos-sdk/issues/468
// return sdk.ErrGenesisParse("").TraceCause(err, "")
}
return abci.ResponseInitChain{}
}
}
// Custom logic for state export
func (app *DemocoinApp) ExportAppStateAndValidators() (appState json.RawMessage, validators []tmtypes.GenesisValidator, err error) {
ctx := app.NewContext(true, abci.Header{})
// iterate to get the accounts
accounts := []*types.GenesisAccount{}
appendAccount := func(acc auth.Account) (stop bool) {
account := &types.GenesisAccount{
Address: acc.GetAddress(),
Coins: acc.GetCoins(),
}
accounts = append(accounts, account)
return false
}
app.accountKeeper.IterateAccounts(ctx, appendAccount)
genState := types.GenesisState{
Accounts: accounts,
POWGenesis: pow.ExportGenesis(ctx, app.powKeeper),
CoolGenesis: cool.ExportGenesis(ctx, app.coolKeeper),
}
appState, err = codec.MarshalJSONIndent(app.cdc, genState)
if err != nil {
return nil, nil, err
}
return appState, validators, nil
}