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Posted to dev@thrift.apache.org by "Jens Geyer (JIRA)" <ji...@apache.org> on 2014/04/12 14:22:15 UTC
[jira] [Updated] (THRIFT-2458) Generated golang server codes for
"oneway" interface is incorrect
[ https://issues.apache.org/jira/browse/THRIFT-2458?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jens Geyer updated THRIFT-2458:
-------------------------------
Description:
oneway interface call is only a notification. server shall not send any response. But currently the golang server codes generated by complier will send a response. That will make the subsequent RPC call failed due to this unexpected result in the receiving networking stream. (The client is not expecting a reply for oneway call)
Here is an example of generated codes for a oneway call (oneway void hi()), it shall not write a result back.
{code}
func (p *testProcessorHi) Process(seqId int32, iprot, oprot thrift.TProtocol) (success bool, err thrift.TException) {
args := NewHiArgs()
if err = args.Read(iprot); err != nil {
iprot.ReadMessageEnd()
x := thrift.NewTApplicationException(thrift.PROTOCOL_ERROR, err.Error())
oprot.WriteMessageBegin("hi", thrift.EXCEPTION, seqId)
x.Write(oprot)
oprot.WriteMessageEnd()
oprot.Flush()
return
}
iprot.ReadMessageEnd()
result := NewHiResult()
if err = p.handler.Hi(); err != nil {
x := thrift.NewTApplicationException(thrift.INTERNAL_ERROR, "Internal error processing hi: "+err.Error())
oprot.WriteMessageBegin("hi", thrift.EXCEPTION, seqId)
x.Write(oprot)
oprot.WriteMessageEnd()
oprot.Flush()
return
}
if err2 := oprot.WriteMessageBegin("hi", thrift.REPLY, seqId); err2 != nil {
err = err2
}
if err2 := result.Write(oprot); err == nil && err2 != nil {
err = err2
}
if err2 := oprot.WriteMessageEnd(); err == nil && err2 != nil {
err = err2
}
if err2 := oprot.Flush(); err == nil && err2 != nil {
err = err2
}
if err != nil {
return
}
return true, err
}
{code}
was:
oneway interface call is only a notification. server shall not send any response. But currently the golang server codes generated by complier will send a response. That will make the subsequent RPC call failed due to this unexpected result in the receiving networking stream. (The client is not expecting a reply for oneway call)
Here is an example of generated codes for a oneway call (oneway void hi()), it shall not write a result back.
func (p *testProcessorHi) Process(seqId int32, iprot, oprot thrift.TProtocol) (success bool, err thrift.TException) {
args := NewHiArgs()
if err = args.Read(iprot); err != nil {
iprot.ReadMessageEnd()
x := thrift.NewTApplicationException(thrift.PROTOCOL_ERROR, err.Error())
oprot.WriteMessageBegin("hi", thrift.EXCEPTION, seqId)
x.Write(oprot)
oprot.WriteMessageEnd()
oprot.Flush()
return
}
iprot.ReadMessageEnd()
result := NewHiResult()
if err = p.handler.Hi(); err != nil {
x := thrift.NewTApplicationException(thrift.INTERNAL_ERROR, "Internal error processing hi: "+err.Error())
oprot.WriteMessageBegin("hi", thrift.EXCEPTION, seqId)
x.Write(oprot)
oprot.WriteMessageEnd()
oprot.Flush()
return
}
if err2 := oprot.WriteMessageBegin("hi", thrift.REPLY, seqId); err2 != nil {
err = err2
}
if err2 := result.Write(oprot); err == nil && err2 != nil {
err = err2
}
if err2 := oprot.WriteMessageEnd(); err == nil && err2 != nil {
err = err2
}
if err2 := oprot.Flush(); err == nil && err2 != nil {
err = err2
}
if err != nil {
return
}
return true, err
}
> Generated golang server codes for "oneway" interface is incorrect
> -----------------------------------------------------------------
>
> Key: THRIFT-2458
> URL: https://issues.apache.org/jira/browse/THRIFT-2458
> Project: Thrift
> Issue Type: Bug
> Components: Go - Compiler
> Affects Versions: 0.9.1
> Reporter: Brian Jiang
> Assignee: Jens Geyer
> Priority: Critical
>
> oneway interface call is only a notification. server shall not send any response. But currently the golang server codes generated by complier will send a response. That will make the subsequent RPC call failed due to this unexpected result in the receiving networking stream. (The client is not expecting a reply for oneway call)
> Here is an example of generated codes for a oneway call (oneway void hi()), it shall not write a result back.
> {code}
> func (p *testProcessorHi) Process(seqId int32, iprot, oprot thrift.TProtocol) (success bool, err thrift.TException) {
> args := NewHiArgs()
> if err = args.Read(iprot); err != nil {
> iprot.ReadMessageEnd()
> x := thrift.NewTApplicationException(thrift.PROTOCOL_ERROR, err.Error())
> oprot.WriteMessageBegin("hi", thrift.EXCEPTION, seqId)
> x.Write(oprot)
> oprot.WriteMessageEnd()
> oprot.Flush()
> return
> }
> iprot.ReadMessageEnd()
> result := NewHiResult()
> if err = p.handler.Hi(); err != nil {
> x := thrift.NewTApplicationException(thrift.INTERNAL_ERROR, "Internal error processing hi: "+err.Error())
> oprot.WriteMessageBegin("hi", thrift.EXCEPTION, seqId)
> x.Write(oprot)
> oprot.WriteMessageEnd()
> oprot.Flush()
> return
> }
> if err2 := oprot.WriteMessageBegin("hi", thrift.REPLY, seqId); err2 != nil {
> err = err2
> }
> if err2 := result.Write(oprot); err == nil && err2 != nil {
> err = err2
> }
> if err2 := oprot.WriteMessageEnd(); err == nil && err2 != nil {
> err = err2
> }
> if err2 := oprot.Flush(); err == nil && err2 != nil {
> err = err2
> }
> if err != nil {
> return
> }
> return true, err
> }
> {code}
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