/
app.go
174 lines (161 loc) · 3.83 KB
/
app.go
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package app
import (
"context"
"errors"
"github.com/BAN1ce/Tree/logger"
"github.com/BAN1ce/Tree/pkg"
"github.com/BAN1ce/Tree/proto"
"github.com/BAN1ce/Tree/state/api"
"go.uber.org/zap"
proto2 "google.golang.org/protobuf/proto"
"sync"
"time"
)
type App struct {
mux sync.RWMutex
topicCluster *Cluster
writeTimeout time.Duration
}
func NewApp() *App {
return &App{}
}
func (a *App) StartTopicCluster(ctx context.Context, option ...Option) error {
//option = append(option,cluster.WithStateMachine(store.NewState()))
var (
topicCluster = NewCluster(option...)
)
a.mux.Lock()
defer a.mux.Unlock()
a.topicCluster = topicCluster
go func() {
if err := topicCluster.Start(ctx); err != nil {
logger.Logger.Fatal("store cluster start failed", zap.Error(err))
}
}()
return nil
}
func (a *App) Subscribe(ctx context.Context, request *proto.SubRequest) (rsp *proto.SubResponse, err error) {
data, err := api.EncodeRequestWriteCommand(request)
if err != nil {
return nil, err
}
if result, err := a.topicCluster.Write(ctx, data); err != nil {
return nil, err
} else {
var rsp proto.SubResponse
if err = proto2.Unmarshal(result.Data, &rsp); err != nil {
return nil, err
}
return &rsp, nil
}
}
func (a *App) UnSubscribe(ctx context.Context, request *proto.UnSubRequest) (rsp *proto.UnSubResponse, err error) {
var (
data []byte
)
data, err = api.EncodeRequestWriteCommand(request)
if err != nil {
return nil, err
}
if result, err := a.topicCluster.Write(ctx, data); err != nil {
return nil, err
} else {
var rsp proto.UnSubResponse
if err = proto2.Unmarshal(result.Data, &rsp); err != nil {
return nil, err
}
return &rsp, nil
}
}
func (a *App) PutKey(ctx context.Context, key, value string) error {
var (
req = &proto.PutKeyRequest{
Key: key,
Value: value,
}
)
data, err := api.EncodeRequestWriteCommand(req)
if err != nil {
return err
}
// FIXME ctx
if result, err := a.topicCluster.Write(ctx, data); err != nil {
return err
} else {
var rsp proto.PutKeyResponse
if err = proto2.Unmarshal(result.Data, &rsp); err != nil {
return err
}
if rsp.Success {
return nil
}
return errors.New(rsp.Message)
}
}
func (a *App) ReadKey(ctx context.Context, key string) (value string, exists bool, err error) {
var (
req = &api.ReadKeyRequest{
Key: key,
}
result interface{}
)
if result, err = a.topicCluster.Read(ctx, req); err != nil {
return
}
if rsp, ok := result.(*api.ReadKeyResponse); ok {
return rsp.Value, rsp.Exists, nil
}
err = pkg.ErrInvalidReadResponse
return
}
func (a *App) DeleteKey(ctx context.Context, key string) error {
var (
req = &proto.DeleteKeyRequest{
Key: key,
}
)
data, err := api.EncodeRequestWriteCommand(req)
if err != nil {
return err
}
if result, err := a.topicCluster.Write(ctx, data); err != nil {
return err
} else {
var rsp proto.DeleteKeyResponse
if err = proto2.Unmarshal(result.Data, &rsp); err != nil {
return err
}
if rsp.Success {
return nil
}
return errors.New(rsp.Message)
}
}
func (a *App) ReadPrefixKey(ctx context.Context, prefix string) (value map[string]string, err error) {
var (
req = &api.ReadPrefixKeyRequest{
PrefixKey: prefix,
}
result interface{}
)
if result, err = a.topicCluster.Read(ctx, req); err != nil {
return
}
if rsp, ok := result.(*api.ReadPrefixKeyResponse); ok {
return rsp.Value, nil
}
return nil, pkg.ErrInvalidReadResponse
}
func (a *App) MatchTopic(ctx context.Context, req *api.MatchTopicRequest) (*api.MatchTopicResponse, error) {
result, err := a.topicCluster.Read(ctx, req)
if err != nil {
return nil, err
}
if rsp, ok := result.(*api.MatchTopicResponse); ok {
return rsp, nil
}
return nil, pkg.ErrInvalidReadResponse
}
func (a *App) getWriteCtx() (context.Context, context.CancelFunc) {
return context.WithTimeout(context.TODO(), a.writeTimeout)
}