43 lines
1.3 KiB
Go
43 lines
1.3 KiB
Go
package server
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import (
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"encoding/json"
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"path/filepath"
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abci "github.com/tendermint/abci/types"
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dbm "github.com/tendermint/tmlibs/db"
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"github.com/tendermint/tmlibs/log"
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)
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// AppCreator lets us lazily initialize app, using home dir
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// and other flags (?) to start
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type AppCreator func(string, log.Logger) (abci.Application, error)
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// AppExporter dumps all app state to JSON-serializable structure
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type AppExporter func(home string, log log.Logger) (json.RawMessage, error)
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// ConstructAppCreator returns an application generation function
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func ConstructAppCreator(appFn func(log.Logger, dbm.DB) abci.Application, name string) AppCreator {
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return func(rootDir string, logger log.Logger) (abci.Application, error) {
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dataDir := filepath.Join(rootDir, "data")
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db, err := dbm.NewGoLevelDB(name, dataDir)
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if err != nil {
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return nil, err
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}
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app := appFn(logger, db)
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return app, nil
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}
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}
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// ConstructAppExporter returns an application export function
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func ConstructAppExporter(appFn func(log.Logger, dbm.DB) (json.RawMessage, error), name string) AppExporter {
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return func(rootDir string, logger log.Logger) (json.RawMessage, error) {
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dataDir := filepath.Join(rootDir, "data")
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db, err := dbm.NewGoLevelDB(name, dataDir)
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if err != nil {
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return nil, err
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}
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return appFn(logger, db)
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}
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}
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