Integrate with sofa-tracer for support opentracing.

[leizhiyuan]

Motivation:

integration with sofa tracer

Modification:

based on @ujjboy 's tracer integration, add stat info print.

in order to test .I add com.alipay.sofa.rpc.tracer.sofatracer.factory.MemoryReporterImpl, annotationed by @justfortest

Result:

we will have stat infos in rpc-client-stat.log and rpc-server-stat.log as below.

➜  tracelog tail -f rpc-client-stat.log
{"time":"2018-05-18 07:02:19.716","stat.key":{"method":"method","local.app":"client","service":"app.service:2.0"},"count":20,"total.cost.milliseconds":1,"success":"Y"}
{"time":"2018-05-18 07:02:19.717","stat.key":{"method":"method","local.app":"client","service":"app.service:1.0"},"count":10,"total.cost.milliseconds":17,"success":"Y"}

service,method,localapp,remoteapp,count,time,success.

[ujjboy]

这个sleep是为了？

[leizhiyuan]

@ujjboy 为了等一些 callback 回来.

[ujjboy]

嗯 那就在 callback 调完之后 用 CountdownLatch 等吧，这里可以不用等了。

[leizhiyuan]

这个暂时不改了.看了一下,还有 oneway 等的处理.我之后看看怎么优化下

[ujjboy]

我在想字段这几个要不要删掉？

[leizhiyuan]

可以,我先删除,也没人用到现在.

[codecov-io]

Codecov Report

Merging #131 into master will increase coverage by 1.69%.
The diff coverage is 78.94%.

@@             Coverage Diff              @@
##             master     #131      +/-   ##
============================================
+ Coverage     66.39%   68.09%   +1.69%     
+ Complexity      756      729      -27     
============================================
  Files           280      302      +22     
  Lines         11897    12640     +743     
  Branches       1981     2077      +96     
============================================
+ Hits           7899     8607     +708     
+ Misses         3011     2988      -23     
- Partials        987     1045      +58

Impacted Files	Coverage Δ	Complexity Δ
...fa/rpc/tracer/sofatracer/log/tags/RpcSpanTags.java	0% <0%> (ø)	0 <0> (?)
...a/rpc/tracer/sofatracer/code/TracerResultCode.java	0% <0%> (ø)	0 <0> (?)
.../tracer/sofatracer/factory/MemoryReporterImpl.java	0% <0%> (ø)	0 <0> (?)
...c/tracer/sofatracer/log/type/RpcTracerLogEnum.java	100% <100%> (ø)	0 <0> (?)
...sofatracer/log/stat/RpcServerStatJsonReporter.java	100% <100%> (ø)	0 <0> (?)
...sofatracer/log/stat/RpcClientStatJsonReporter.java	100% <100%> (ø)	0 <0> (?)
...rpc/tracer/sofatracer/factory/ReporterFactory.java	57.14% <57.14%> (ø)	0 <0> (?)
...a/com/alipay/sofa/rpc/module/SofaTracerModule.java	57.14% <57.14%> (ø)	0 <0> (?)
.../sofa/rpc/tracer/sofatracer/RestTracerAdapter.java	65.11% <65.11%> (ø)	10 <10> (?)
...a/com/alipay/sofa/rpc/module/RestTracerModule.java	70.37% <70.37%> (ø)	4 <4> (?)
... and 75 more

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[ujjboy]

嗯 那就在 callback 调完之后 用 CountdownLatch 等吧，这里可以不用等了。

[ujjboy]

这里要改掉吧。