Recurring error when trying to send notification

[Søren Jepsen]

Hi, guys!

Using Kaa 0.8 - i've discovered an error related to sending notifications.

After uploading a schema like below:

[

  {
    "type": "record",
    "name": "LogDataNotification",
    "namespace": "xxx.notification",
    "fields": [
      {
        "name": "test",
        "type": "string",
        "by_default": "test-repository"
      }
    ]
  }
]

I get the following node exception, when trying to send a notification:

2016-03-08 10:20:18,462 [qtp1075676110-73] ERROR org.spring4gwt.server.RPCHelper - Unexpected exception occured while invoking service method - getUserNotificationSchemaInfosByApplicationId

org.kaaproject.kaa.server.admin.shared.services.KaaAdminServiceException: Schema union is not a record schema!

at org.kaaproject.kaa.server.admin.services.util.Utils.handleException(Utils.java:61) ~[kaa-node-0.8.0.jar:na]

at org.kaaproject.kaa.server.admin.services.util.Utils.handleException(Utils.java:37) ~[kaa-node-0.8.0.jar:na]

at org.kaaproject.kaa.server.admin.services.KaaAdminServiceImpl.getUserNotificationSchemaInfosByApplicationId(KaaAdminServiceImpl.java:1433) ~[kaa-node-0.8.0.jar:na]

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_66]

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_66]

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_66]

at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_66]

at org.spring4gwt.server.RPCHelper.invokeAndEncodeResponse(RPCHelper.java:53) [kaa-node-0.8.0.jar:na]

at org.spring4gwt.server.RPCHelper.invokeAndEncodeResponse(RPCHelper.java:37) [kaa-node-0.8.0.jar:na]

at org.spring4gwt.server.SpringGwtRemoteServiceServlet.processCall(SpringGwtRemoteServiceServlet.java:59) [kaa-node-0.8.0.jar:na]

at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:373) [gwt-user-2.7.0.jar:na]

at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62) [gwt-user-2.7.0.jar:na]

at javax.servlet.http.HttpServlet.service(HttpServlet.java:755) [gwt-user-2.7.0.jar:na]

at javax.servlet.http.HttpServlet.service(HttpServlet.java:848) [gwt-user-2.7.0.jar:na]

at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:769) [jetty-servlet-9.2.2.v20140723.jar:9.2.2.v20140723]

at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1667) [jetty-servlet-9.2.2.v20140723.jar:9.2.2.v20140723]

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]

at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]

at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]

at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]

at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]

at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]

at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:154) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]

at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]

at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:199) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]

at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:110) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]

at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:50) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108) [spring-web-4.0.2.RELEASE.jar:4.0.2.RELEASE]

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]

at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]

at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]

at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE]

at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344) [spring-web-4.0.2.RELEASE.jar:4.0.2.RELEASE]

at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261) [spring-web-4.0.2.RELEASE.jar:4.0.2.RELEASE]

at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1650) [jetty-servlet-9.2.2.v20140723.jar:9.2.2.v20140723]

at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:583) [jetty-servlet-9.2.2.v20140723.jar:9.2.2.v20140723]

at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) [jetty-server-9.2.2.v20140723.jar:9.2.2.v20140723]

at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577) [jetty-security-9.2.2.v20140723.jar:9.2.2.v20140723]

at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223) [jetty-server-9.2.2.v20140723.jar:9.2.2.v20140723]

at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1125) [jetty-server-9.2.2.v20140723.jar:9.2.2.v20140723]

at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515) [jetty-servlet-9.2.2.v20140723.jar:9.2.2.v20140723]

at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) [jetty-server-9.2.2.v20140723.jar:9.2.2.v20140723]

at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1059) [jetty-server-9.2.2.v20140723.jar:9.2.2.v20140723]

at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) [jetty-server-9.2.2.v20140723.jar:9.2.2.v20140723]

at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) [jetty-server-9.2.2.v20140723.jar:9.2.2.v20140723]

at org.eclipse.jetty.server.Server.handle(Server.java:485) [jetty-server-9.2.2.v20140723.jar:9.2.2.v20140723]

at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:290) [jetty-server-9.2.2.v20140723.jar:9.2.2.v20140723]

at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:248) [jetty-server-9.2.2.v20140723.jar:9.2.2.v20140723]

at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540) [jetty-io-9.2.2.v20140723.jar:9.2.2.v20140723]

at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:606) [jetty-util-9.2.2.v20140723.jar:9.2.2.v20140723]

at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:535) [jetty-util-9.2.2.v20140723.jar:9.2.2.v20140723]

at java.lang.Thread.run(Thread.java:745) [na:1.8.0_66]

 

Kindly regards!

[Andrew Kokhanovskyi]

Hi Soren,

try removing the outermost square brackets. For various reasons, the notifications schema has to resemble a record - not a union. Thus, the service throws an exception, this is expected behavior. If you really want a union, the workaround right now is to wrap it up in a record.

Andrew

[Søren Jepsen]

Hi, Andrew!

I suppose this issue is going to get fixed, right?

- Secondly this error prevents me from uploading and using a new Schema that is fixed - as the error happens, when listing which notification schema version i want to send a notification from.

// Søren

[Dmitry Sergeev]

Hello!

Thanks for information! KAA-911 has been created based on your report.

Regards,

Dmitry

среда, 9 марта 2016 г., 7:56:56 UTC+2 пользователь Søren Jepsen написал:

[Andrew Kokhanovskyi]

Soren: you're right, this is a bug. I misread your initial message. The error should be reported at the schema provisioning time, not when you attempt sending a notification. We'll take care of this - thanks for reporting!

AK

[Søren Jepsen]

No problem!

- Goal is to make Kaa the best IOT middleware ;)