[BUG] when user assign a group to a dataset, report the Internal Error.

[Mukvin]

Describe the bug
Assign a group to a dataset throws error:

[MDX-00000001] Internal Error, com.alibaba.fastjson.JSONArray cannot be cast to com.alibaba.fastjson.JSONObject
java.lang.ClassCastException: com.alibaba.fastjson.JSONArray cannot be cast to com.alibaba.fastjson.JSONObject
 at com.alibaba.fastjson.JSONObject.getJSONObject(JSONObject.java:140)
 at io.kylin.mdx.insight.core.meta.acl.KylinAclConvertor.hasTablePermissionByGroup(KylinAclConvertor.java:125)
 at io.kylin.mdx.insight.core.meta.acl.KylinAclConvertor.generateAclByGroup(KylinAclConvertor.java:69)
 at io.kylin.mdx.insight.core.meta.acl.KylinAclConvertor.getAclProjectModel(KylinAclConvertor.java:57)
 at io.kylin.mdx.insight.core.meta.KylinConvertor.getAclProjectModel(KylinConvertor.java:539)
 at io.kylin.mdx.insight.core.meta.SemanticAdapter.getAclModel(SemanticAdapter.java:155)
 at io.kylin.mdx.insight.server.facade.AclFacade.preparePermission(AclFacade.java:53)
 at io.kylin.mdx.insight.server.controller.AclController.getAcl(AclController.java:62)
 at io.kylin.mdx.insight.server.controller.AclController$$FastClassBySpringCGLIB$$812005c9.invoke(<generated>)
 at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
 at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:771)
 at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
...

Expected behavior
add group successfully without any error.

Screenshots
If applicable, add screenshots to help explain your problem.




Additional context
Add any other context about the problem here.

[Mukvin]

root cause

io/kylin/mdx/insight/core/meta/acl/KylinAclConvertor.java:125

result.getJSONObject("data") can not be cast.

      JSONArray groupList = result.getJSONObject("data").getJSONArray("group");

need to change to as followed:

    JSONArray groupList = result.getJSONArray("data");

[Mukvin]

Solution

replace the jar in $MDX_HOME/semantic-mdx/semantic-service.jar