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76 lines
2.0 KiB
76 lines
2.0 KiB
package dummy
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import (
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"encoding/hex"
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"strings"
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"github.com/tendermint/abci/types"
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. "github.com/tendermint/go-common"
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"github.com/tendermint/go-merkle"
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"github.com/tendermint/go-wire"
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)
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type DummyApplication struct {
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state merkle.Tree
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}
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func NewDummyApplication() *DummyApplication {
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state := merkle.NewIAVLTree(0, nil)
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return &DummyApplication{state: state}
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}
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func (app *DummyApplication) Info() (resInfo types.ResponseInfo) {
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return types.ResponseInfo{Data: Fmt("{\"size\":%v}", app.state.Size())}
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}
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func (app *DummyApplication) SetOption(key string, value string) (log string) {
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return ""
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}
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// tx is either "key=value" or just arbitrary bytes
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func (app *DummyApplication) DeliverTx(tx []byte) types.Result {
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parts := strings.Split(string(tx), "=")
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if len(parts) == 2 {
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app.state.Set([]byte(parts[0]), []byte(parts[1]))
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} else {
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app.state.Set(tx, tx)
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}
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return types.OK
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}
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func (app *DummyApplication) CheckTx(tx []byte) types.Result {
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return types.OK
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}
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func (app *DummyApplication) Commit() types.Result {
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hash := app.state.Hash()
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return types.NewResultOK(hash, "")
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}
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func (app *DummyApplication) Query(query []byte) types.Result {
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index, value, exists := app.state.Get(query)
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queryResult := QueryResult{index, string(value), hex.EncodeToString(value), exists}
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return types.NewResultOK(wire.JSONBytes(queryResult), "")
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}
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func (app *DummyApplication) Proof(key []byte, blockHeight uint64) types.Result {
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// TODO: when go-merkle supports querying older blocks without possible panics,
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// we should store a cache and allow a query. But for now it is impossible.
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// And this is just a Dummy application anyway, what do you expect? ;)
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if blockHeight != 0 {
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return types.ErrUnknownRequest
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}
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proof, exists := app.state.Proof(key)
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if !exists {
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return types.NewResultOK(nil, Fmt("Cannot find key = %v", key))
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}
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return types.NewResultOK(proof, "Found the key")
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}
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type QueryResult struct {
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Index int `json:"index"`
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Value string `json:"value"`
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ValueHex string `json:"valueHex"`
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Exists bool `json:"exists"`
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}
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