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package eyes
import (
abcicli "github.com/tendermint/abci/client"
abci "github.com/tendermint/abci/types"
"github.com/tendermint/go-wire"
"github.com/tendermint/merkleeyes/app"
)
type Client struct {
abcicli.Client
}
// 'addr': if "local", will start an embedded one.
func NewClient(addr, abci string) (*Client, error) {
if addr == "local" {
return NewLocalClient(), nil
}
abciClient, err := abcicli.NewClient(addr, abci, false)
if err != nil {
return nil, err
}
client := &Client{
Client: abciClient,
}
return client, nil
}
func NewLocalClient() *Client {
eyesApp := app.NewMerkleEyesApp()
abciClient := abcicli.NewLocalClient(nil, eyesApp)
return &Client{
Client: abciClient,
}
}
func (client *Client) GetSync(key []byte) (res abci.Result) {
query := make([]byte, 1+wire.ByteSliceSize(key))
buf := query
buf[0] = 0x01 // Get TypeByte
buf = buf[1:]
wire.PutByteSlice(buf, key)
res = client.QuerySync(query)
if res.IsErr() {
return res
}
value := res.Data
return abci.NewResultOK(value, "")
}
func (client *Client) SetSync(key []byte, value []byte) (res abci.Result) {
tx := make([]byte, 1+wire.ByteSliceSize(key)+wire.ByteSliceSize(value))
buf := tx
buf[0] = 0x01 // Set TypeByte
buf = buf[1:]
n, err := wire.PutByteSlice(buf, key)
if err != nil {
return abci.ErrInternalError.SetLog("encoding key byteslice: " + err.Error())
}
buf = buf[n:]
n, err = wire.PutByteSlice(buf, value)
if err != nil {
return abci.ErrInternalError.SetLog("encoding value byteslice: " + err.Error())
}
return client.DeliverTxSync(tx)
}
func (client *Client) RemSync(key []byte) (res abci.Result) {
tx := make([]byte, 1+wire.ByteSliceSize(key))
buf := tx
buf[0] = 0x02 // Rem TypeByte
buf = buf[1:]
_, err := wire.PutByteSlice(buf, key)
if err != nil {
return abci.ErrInternalError.SetLog("encoding key byteslice: " + err.Error())
}
return client.DeliverTxSync(tx)
}
//----------------------------------------
// Convenience
func (client *Client) Get(key []byte) (value []byte) {
res := client.GetSync(key)
if res.IsErr() {
panic(res.Error())
}
return res.Data
}
func (client *Client) Set(key []byte, value []byte) {
res := client.SetSync(key, value)
if res.IsErr() {
panic(res.Error())
}
}
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