Justin Leet created METRON-1877:
-----------------------------------
Summary: Nested IF ELSE statements can cause parse errors in
Stellar
Key: METRON-1877
URL: https://issues.apache.org/jira/browse/METRON-1877
Project: Metron
Issue Type: Improvement
Reporter: Justin Leet
Assignee: Justin Leet
IF ELSE statements nested inside IF ELSEstatements can cause problems with
short-circuiting. See the following example.
{code:java}
Stellar>>> IF true THEN IF false THEN true ELSE false ELSE is_alert
false
Stellar>>> IF true THEN IF true THEN true ELSE false ELSE is_alert
! Invalid parse, found null
org.apache.metron.stellar.dsl.ParseException: Invalid parse, found null
at
org.apache.metron.stellar.common.StellarCompiler$Expression.apply(StellarCompiler.java:211)
at
org.apache.metron.stellar.common.BaseStellarProcessor.parse(BaseStellarProcessor.java:145)
at
org.apache.metron.stellar.common.shell.DefaultStellarShellExecutor.executeStellar(DefaultStellarShellExecutor.java:401)
at
org.apache.metron.stellar.common.shell.DefaultStellarShellExecutor.execute(DefaultStellarShellExecutor.java:257)
at
org.apache.metron.stellar.common.shell.cli.StellarShell.execute(StellarShell.java:357)
at org.jboss.aesh.console.AeshProcess.run(AeshProcess.java:53)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:748){code}
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