Catching messages thrown by classes in a lower level - scala

Question

There are four levels in my application: (1) My application, (2) pivot4j, (3) olap4j, and (4) Mondrian
If I run this code in Scala:
try {
renderer.render(model, new HtmlRenderCallback(sw))
}
catch {
case ex: Exception => println(ex.getMessage)
}
The application prints the error thrown by pivot4j:
org.olap4j.OlapException: mondrian gave exception while parsing query
If I don't catch the error, the stack trace is (in bold the relevant messages):
play.api.http.HttpErrorHandlerExceptions$$anon$1: Execution
exception[[PivotException: org.olap4j.OlapException: mondrian gave
exception while parsing query]]
at play.api.http.HttpErrorHandlerExceptions$.throwableToUsefulException(HttpErrorHandler.scala:293)
at play.api.http.DefaultHttpErrorHandler.onServerError(HttpErrorHandler.scala:220)
at play.api.GlobalSettings$class.onError(GlobalSettings.scala:160)
at play.api.DefaultGlobal$.onError(GlobalSettings.scala:188)
at play.api.http.GlobalSettingsHttpErrorHandler.onServerError(HttpErrorHandler.scala:100)
at play.core.server.netty.PlayRequestHandler$$anonfun$2$$anonfun$apply$1.applyOrElse(PlayRequestHandler.scala:100)
at play.core.server.netty.PlayRequestHandler$$anonfun$2$$anonfun$apply$1.applyOrElse(PlayRequestHandler.scala:99)
at scala.concurrent.Future$$anonfun$recoverWith$1.apply(Future.scala:346)
at scala.concurrent.Future$$anonfun$recoverWith$1.apply(Future.scala:345)
at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:36) Caused
by: org.pivot4j.PivotException: org.olap4j.OlapException: mondrian
gave exception while parsing query
at org.pivot4j.impl.PivotModelImpl.getCellSet(PivotModelImpl.java:598)
at org.pivot4j.ui.table.TableRenderer.render(TableRenderer.java:425)
at olap.process.RunOlap.doRunMdx(RunOlap.scala:91)
at olap.process.RunOlap$$anonfun$runMdx$1.apply(RunOlap.scala:53)
at olap.process.RunOlap$$anonfun$runMdx$1.apply(RunOlap.scala:51)
at login.Authentication$LoggedAction$$anonfun$invokeBlock$1.apply(LoggedAction.scala:47)
at login.Authentication$LoggedAction$$anonfun$invokeBlock$1.apply(LoggedAction.scala:42)
at scala.concurrent.Future$$anonfun$flatMap$1.apply(Future.scala:253)
at scala.concurrent.Future$$anonfun$flatMap$1.apply(Future.scala:251)
at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:36) Caused
by: org.olap4j.OlapException: mondrian gave exception while parsing
query
at mondrian.olap4j.MondrianOlap4jConnection$Helper.createException(MondrianOlap4jConnection.java:858)
at mondrian.olap4j.MondrianOlap4jStatement.parseQuery(MondrianOlap4jStatement.java:375)
at mondrian.olap4j.MondrianOlap4jStatement.executeOlapQuery(MondrianOlap4jStatement.java:346)
at org.pivot4j.impl.PivotModelImpl.executeMdx(PivotModelImpl.java:646)
at org.pivot4j.impl.PivotModelImpl.getCellSet(PivotModelImpl.java:596)
at org.pivot4j.ui.table.TableRenderer.render(TableRenderer.java:425)
at olap.process.RunOlap.doRunMdx(RunOlap.scala:91)
at olap.process.RunOlap$$anonfun$runMdx$1.apply(RunOlap.scala:53)
at olap.process.RunOlap$$anonfun$runMdx$1.apply(RunOlap.scala:51)
at login.Authentication$LoggedAction$$anonfun$invokeBlock$1.apply(LoggedAction.scala:47)
Caused by: mondrian.olap.MondrianException: Mondrian Error: MDX object '[Measures].[Unit Cost]' not found in cube 'Sales'
Mondrian is the one that is originating the error, and I need to get the message that is throwing:
MDX object '[Measures].[Unit Cost]' not found in cube 'Sales'
I tried:
try {
renderer.render(model, new HtmlRenderCallback(sw))
}
catch {
case ex: MondrianException => println(ex.getMessage)
}
But is not catching the error.

Answer 1

Use Apache Commons ExceptionUtils to get the root exception.