/
service.go
223 lines (204 loc) · 6.19 KB
/
service.go
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package service
import (
"bytes"
"context"
"fmt"
"reflect"
"runtime"
"time"
"github.com/Shopify/sarama"
"github.com/gammazero/workerpool"
"github.com/golang/protobuf/proto"
"github.com/opentracing/opentracing-go"
traceLog "github.com/opentracing/opentracing-go/log"
"github.com/rs/zerolog"
"github.com/rs/zerolog/log"
"github.com/txchat/dtalk/pkg/naming"
"github.com/txchat/dtalk/pkg/net/grpc"
"github.com/txchat/dtalk/service/record/answer/config"
"github.com/txchat/dtalk/service/record/answer/dao"
"github.com/txchat/dtalk/service/record/answer/model"
"github.com/txchat/dtalk/service/record/kafka/consumer"
"github.com/txchat/im-pkg/trace"
comet "github.com/txchat/im/api/comet/grpc"
logic "github.com/txchat/im/api/logic/grpc"
"github.com/txchat/imparse"
"github.com/txchat/imparse/chat"
"github.com/uber/jaeger-client-go"
"google.golang.org/grpc/resolver"
)
type Service struct {
cfg *config.Config
log zerolog.Logger
dao *dao.Dao
consumers map[string]*consumer.Consumer
logicClient logic.LogicClient
answer imparse.Answer
rcpAnswer imparse.Answer
parser chat.StandardParse
workPool *workerpool.WorkerPool
}
func New(c *config.Config) *Service {
s := &Service{
cfg: c,
log: log.Logger,
dao: dao.New(c),
consumers: consumer.NewKafkaConsumers(
fmt.Sprintf("goim-%s-topic", c.AppId),
fmt.Sprintf("goim-%s-group", c.AppId), c.MQSub.Brokers, c.MQSub.Number),
logicClient: newLogicClient(c),
workPool: workerpool.New(c.MQSub.MaxWorker),
}
db := DB{
dao: s.dao,
}
exec := Exec{
appId: s.cfg.AppId,
dao: s.dao,
logicClient: s.logicClient,
}
withoutAckExec := withoutAckExec{
appId: s.cfg.AppId,
dao: s.dao,
logicClient: s.logicClient,
}
trace := &Trace{}
s.answer = imparse.NewStandardAnswer(&db, &exec, trace, db.GetFilters())
s.rcpAnswer = imparse.NewStandardAnswer(&db, &withoutAckExec, trace, db.GetFilters())
return s
}
func newLogicClient(cfg *config.Config) logic.LogicClient {
rb := naming.NewResolver(cfg.LogicRPCClient.RegAddrs, cfg.LogicRPCClient.Schema)
resolver.Register(rb)
addr := fmt.Sprintf("%s:///%s", cfg.LogicRPCClient.Schema, cfg.LogicRPCClient.SrvName) // "schema://[authority]/service"
fmt.Println("logic rpc client call addr:", addr)
conn, err := grpc.NewGRPCConn(addr, time.Duration(cfg.LogicRPCClient.Dial))
if err != nil {
panic(err)
}
return logic.NewLogicClient(conn)
}
func (s *Service) Shutdown(ctx context.Context) {
down := make(chan struct{})
go func() {
s.workPool.StopWait()
close(down)
}()
select {
case <-ctx.Done():
return
case <-down:
return
}
}
func (s *Service) ListenMQ() {
s.log.Info().Int("numbers", len(s.consumers)).Msg("start serve mq consumers")
for _, c := range s.consumers {
go c.Listen(s.asyncRev)
}
}
func (s *Service) asyncRev(msg *sarama.ConsumerMessage) error {
s.workPool.Submit(func() {
//init trace and log
s.log.Debug().Str("topic", msg.Topic).
Bytes("key", msg.Key).
Int32("partition", msg.Partition).
Int64("offset", msg.Offset).
Msg(fmt.Sprintf("consume %s", msg.Topic))
err := s.consume(msg)
if err != nil {
//s.log.Error().Err(err).Msg("asyncRev consume error")
return
}
})
return nil
}
func (s *Service) consume(msg *sarama.ConsumerMessage) error {
bizMsg := new(logic.BizMsg)
if err := proto.Unmarshal(msg.Value, bizMsg); err != nil {
s.log.Error().Err(err).Bytes("bizMsg byte", msg.Value).Msg("logic.BizMsg proto.Unmarshal error")
return err
}
if bizMsg.AppId != s.cfg.AppId {
return model.ErrAppId
}
switch bizMsg.GetOp() {
case int32(comet.Op_SendMsg):
if err := s.consumeTraceAndLogIpt(msg, bizMsg, s.DealOpSendMsg); err != nil {
//TODO redo consume message
return err
}
default:
return model.ErrCustomNotSupport
}
return nil
}
func (s *Service) consumeTraceAndLogIpt(msg *sarama.ConsumerMessage, bizMsg *logic.BizMsg, handler func(ctx context.Context, m *logic.BizMsg) error) error {
// trace
tracer := opentracing.GlobalTracer()
spanContext, err := trace.ExtractMQHeader(tracer, msg)
if err != nil {
// maybe rpc client not transform trace instance, it should be work continue
}
spanName := fmt.Sprintf("consume %s:%s", msg.Topic, comet.Op_SendMsg.String())
span := tracer.StartSpan(spanName, opentracing.ChildOf(spanContext))
defer span.Finish()
traceId := ""
if jgSpan, ok := span.Context().(jaeger.SpanContext); ok {
traceId = jgSpan.TraceID().String()
}
//get global log instance
logger := s.log.With().Str(trace.TraceIDLogKey, traceId).Logger()
span.LogFields(
traceLog.String("AppId", bizMsg.GetAppId()),
traceLog.String("Uid", bizMsg.GetFromId()),
traceLog.String("ConnId", bizMsg.GetKey()),
traceLog.String("Option", comet.Op(bizMsg.GetOp()).String()),
)
ctx := opentracing.ContextWithSpan(context.Background(), span)
ctx = logger.WithContext(ctx)
err = handler(ctx, bizMsg)
if err != nil {
pointer := reflect.ValueOf(handler).Pointer()
funcName := runtime.FuncForPC(pointer).Name()
log.Error().Err(err).Msg(fmt.Sprintf("consume %s error", funcName))
span.SetTag("ERROR", err)
return err
}
return nil
}
func (s *Service) DealOpSendMsg(ctx context.Context, m *logic.BizMsg) error {
logger := zerolog.Ctx(ctx).With().Str("AppId", m.GetAppId()).Str("Uid", m.GetFromId()).Str("ConnId", m.GetKey()).Logger()
logger.Debug().Msg("start create frame")
frame, err := s.parser.NewFrame(m.GetKey(), m.GetFromId(), bytes.NewReader(m.GetMsg()))
if err != nil {
logger.Error().Stack().Err(err).Msg("NewFrame error")
return err
}
logger.Debug().Msg("start check frame")
if err := s.answer.Check(ctx, &checker, frame); err != nil {
logger.Error().Stack().Err(err).Msg("Check error")
return err
}
logger.Debug().Msg("start frame filter")
_, err = s.answer.Filter(ctx, frame)
if err != nil {
logger.Error().Stack().Err(err).Msg("Filter error")
return err
}
logger.Debug().Msg("start frame transport")
err = s.answer.Transport(ctx, frame)
if err != nil {
logger.Error().Stack().Err(err).Msg("Transport error")
return err
}
// ACk A
logger.Debug().Msg("start frame ack")
_, err = s.answer.Ack(ctx, frame)
if err != nil {
logger.Error().Stack().Err(err).Msg("Ack error")
return err
}
logger.Debug().Msg("deal msg send success")
return nil
}