带有thrift的golang没有实现thrift.TProcessorFunction (处理方法的类型错误)

Question

我得到了这个错误：

# metric_system
./metric_system.go:227: cannot use myStructProviderProcessorGetMyStruct literal (type *myStructProviderProcessorGetMyStruct) as type thrift.TProcessorFunction in assignment:
    *myStructProviderProcessorGetMyStruct does not implement thrift.TProcessorFunction (wrong type for Process method)
        have Process(int32, thrift.TProtocol, thrift.TProtocol) (bool, thrift.TException)
        want Process(context.Context, int32, thrift.TProtocol, thrift.TProtocol) (bool, thrift.TException)
./metric_system.go:235: not enough arguments in call to processor.Process
    have (int32, thrift.TProtocol, thrift.TProtocol)
    want (context.Context, int32, thrift.TProtocol, thrift.TProtocol)

当我使用golang 1.8.3和thrift 0.10.0构建简单的go应用程序来重现时：

2038  thrift -r --gen go metric_system.thrift 
2040  cp -r gen-go/* src
2041  cd src
 2042  go build

文件夹结构

./metric_system.thrift
./.settings
./.settings/language.settings.xml
./src
./src/metric_system
./src/metric_system/my_struct_provider-remote
./src/metric_system/my_struct_provider-remote/my_struct_provider-remote.go
./src/metric_system/metric_system.go
./src/metric_system/GoUnusedProtection__.go
./src/metric_system/metric_system-consts.go
./src/main.go
./.cproject
./pkg
./pkg/linux_amd64
./.project
./bin
./gen-go
./gen-go/metric_system
./gen-go/metric_system/my_struct_provider-remote
./gen-go/metric_system/my_struct_provider-remote/my_struct_provider-remote.go
./gen-go/metric_system/metric_system.go
./gen-go/metric_system/GoUnusedProtection__.go
./gen-go/metric_system/metric_system-consts.go

metric_system.thrift文件：

struct MyStruct { 
    1: i64 myInt, 
}

service MyStructProvider { MyStruct getMyStruct() }

感谢您的任何帮助

Answer 1

错误说明了一切，您实现的Process方法不符合接口要求。您遗漏了第一个参数context.Context。

Answer 2

将git分支切换到0.10.0

$GOPATH:git.apache.org/thrift.git/lib/go/thrift

thrift.git git:(master) ✗ git branch -a master remotes/origin/0.1.x * remotes/origin/0.10.0 remotes/origin/0.2.x remotes/origin/0.3.x remotes/origin/0.4.x remotes/origin/0.5.x remotes/origin/0.6.x remotes/origin/0.7.x remotes/origin/0.8.x remotes/origin/0.9.1 remotes/origin/0.9.2 remotes/origin/0.9.3 remotes/origin/0.9.x remotes/origin/HEAD -> origin/master remotes/origin/master remotes/origin/py-compiler

Answer 3

我通过使用thrift的主分支来生成go代码来解决了这个问题。https://github.com/apache/thrift/tree/master