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109 lines
3.1 KiB
109 lines
3.1 KiB
package types
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import (
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context "golang.org/x/net/context"
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)
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// Applications
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type Application interface {
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// Return application info
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Info() (info string)
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// Set application option (e.g. mode=mempool, mode=consensus)
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SetOption(key string, value string) (log string)
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// Append a tx
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AppendTx(tx []byte) Result
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// Validate a tx for the mempool
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CheckTx(tx []byte) Result
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// Query for state
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Query(query []byte) Result
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// Return the application Merkle root hash
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Commit() Result
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}
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// Some applications can choose to implement BlockchainAware
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type BlockchainAware interface {
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// Initialize blockchain
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// validators: genesis validators from TendermintCore
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InitChain(validators []*Validator)
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// Signals the beginning of a block
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BeginBlock(height uint64)
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// Signals the end of a block
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// diffs: changed validators from app to TendermintCore
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EndBlock(height uint64) (diffs []*Validator)
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}
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//------------------------------------
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type GRPCApplication struct {
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app Application
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}
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func NewGRPCApplication(app Application) *GRPCApplication {
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return &GRPCApplication{app}
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}
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func (app *GRPCApplication) Echo(ctx context.Context, req *RequestEcho) (*ResponseEcho, error) {
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return &ResponseEcho{req.Message}, nil
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}
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func (app *GRPCApplication) Flush(ctx context.Context, req *RequestFlush) (*ResponseFlush, error) {
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return &ResponseFlush{}, nil
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}
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func (app *GRPCApplication) Info(ctx context.Context, req *RequestInfo) (*ResponseInfo, error) {
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return &ResponseInfo{app.app.Info()}, nil
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}
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func (app *GRPCApplication) SetOption(ctx context.Context, req *RequestSetOption) (*ResponseSetOption, error) {
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return &ResponseSetOption{app.app.SetOption(req.Key, req.Value)}, nil
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}
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func (app *GRPCApplication) AppendTx(ctx context.Context, req *RequestAppendTx) (*ResponseAppendTx, error) {
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r := app.app.AppendTx(req.Tx)
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return &ResponseAppendTx{r.Code, r.Data, r.Log}, nil
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}
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func (app *GRPCApplication) CheckTx(ctx context.Context, req *RequestCheckTx) (*ResponseCheckTx, error) {
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r := app.app.CheckTx(req.Tx)
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return &ResponseCheckTx{r.Code, r.Data, r.Log}, nil
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}
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func (app *GRPCApplication) Query(ctx context.Context, req *RequestQuery) (*ResponseQuery, error) {
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r := app.app.Query(req.Query)
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return &ResponseQuery{r.Code, r.Data, r.Log}, nil
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}
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func (app *GRPCApplication) Commit(ctx context.Context, req *RequestCommit) (*ResponseCommit, error) {
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r := app.app.Commit()
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return &ResponseCommit{r.Code, r.Data, r.Log}, nil
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}
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func (app *GRPCApplication) InitChain(ctx context.Context, req *RequestInitChain) (*ResponseInitChain, error) {
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if chainAware, ok := app.app.(BlockchainAware); ok {
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chainAware.InitChain(req.Validators)
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}
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return &ResponseInitChain{}, nil
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}
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func (app *GRPCApplication) BeginBlock(ctx context.Context, req *RequestBeginBlock) (*ResponseBeginBlock, error) {
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if chainAware, ok := app.app.(BlockchainAware); ok {
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chainAware.BeginBlock(req.Height)
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}
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return &ResponseBeginBlock{}, nil
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}
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func (app *GRPCApplication) EndBlock(ctx context.Context, req *RequestEndBlock) (*ResponseEndBlock, error) {
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if chainAware, ok := app.app.(BlockchainAware); ok {
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diffs := chainAware.EndBlock(req.Height)
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return &ResponseEndBlock{diffs}, nil
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}
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return &ResponseEndBlock{}, nil
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}
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