tendermint/example/dummy/dummy.go

56 lines
1.2 KiB
Go

package dummy
import (
"strings"
. "github.com/tendermint/go-common"
"github.com/tendermint/go-merkle"
"github.com/tendermint/tmsp/types"
)
type DummyApplication struct {
state merkle.Tree
}
func NewDummyApplication() *DummyApplication {
state := merkle.NewIAVLTree(
0,
nil,
)
return &DummyApplication{state: state}
}
func (app *DummyApplication) Info() string {
return Fmt("size:%v", app.state.Size())
}
func (app *DummyApplication) SetOption(key string, value string) (log string) {
return ""
}
// tx is either "key=value" or just arbitrary bytes
func (app *DummyApplication) AppendTx(tx []byte) types.Result {
parts := strings.Split(string(tx), "=")
if len(parts) == 2 {
app.state.Set([]byte(parts[0]), []byte(parts[1]))
} else {
app.state.Set(tx, tx)
}
return types.OK
}
func (app *DummyApplication) CheckTx(tx []byte) types.Result {
return types.OK
}
func (app *DummyApplication) Commit() types.Result {
hash := app.state.Hash()
return types.NewResultOK(hash, "")
}
func (app *DummyApplication) Query(query []byte) types.Result {
index, value, exists := app.state.Get(query)
resStr := Fmt("Index=%v value=%v exists=%v", index, string(value), exists)
return types.NewResultOK([]byte(resStr), "")
}