[teiid-issues] [JBoss JIRA] (TEIID-5766) MongoDB import fails when collection contains an empty array

[Steven Hawkins (Jira)]

     [ https://issues.jboss.org/browse/TEIID-5766?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steven Hawkins resolved TEIID-5766.
-----------------------------------
    Fix Version/s: 12.3
       Resolution: Done


Added logic to skip the import logic for empty lists.

> MongoDB import fails when collection contains an empty array
> ------------------------------------------------------------
>
>                 Key: TEIID-5766
>                 URL: https://issues.jboss.org/browse/TEIID-5766
>             Project: Teiid
>          Issue Type: Bug
>          Components: Server
>    Affects Versions: 8.12.17.6_4
>            Reporter: Marc Shirley
>            Assignee: Steven Hawkins
>            Priority: Major
>             Fix For: 12.3
>
>
> MongoDB import fails with error like [1] when collection returns an empty array in the first doc.
> [1]
> 14:32:38,167 WARN  [org.teiid.RUNTIME] (teiid-async-threads - 1) TEIID50036 VDB importVDB.1 model "importVDBSrcModel" metadata failed to load. Reason:Index: 0, Size: 0: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
>         at java.util.ArrayList.rangeCheck(ArrayList.java:657) [rt.jar:1.8.0_171]
>         at java.util.ArrayList.get(ArrayList.java:433) [rt.jar:1.8.0_171]
>         at org.teiid.translator.mongodb.MongoDBMetadataProcessor.addColumn(MongoDBMetadataProcessor.java:149)
>         at org.teiid.translator.mongodb.MongoDBMetadataProcessor.addTable(MongoDBMetadataProcessor.java:115)
>         at org.teiid.translator.mongodb.MongoDBMetadataProcessor.process(MongoDBMetadataProcessor.java:72)
>         at org.teiid.translator.mongodb.MongoDBMetadataProcessor.process(MongoDBMetadataProcessor.java:48)
>         at org.teiid.translator.ExecutionFactory.getMetadata(ExecutionFactory.java:950) [teiid-api-8.12.17.6_4-redhat-64-2.jar:8.12.17.6_4-redhat-64-2]
>         at org.teiid.query.metadata.NativeMetadataRepository.getMetadata(NativeMetadataRepository.java:96) [teiid-engine-8.12.17.6_4-redhat-64-2.jar:8.12.17.6_4-redhat-64-2]
>         at org.teiid.query.metadata.NativeMetadataRepository.loadMetadata(NativeMetadataRepository.java:62) [teiid-engine-8.12.17.6_4-redhat-64-2.jar:8.12.17.6_4-redhat-64-2]
>         at org.teiid.query.metadata.ChainingMetadataRepository.loadMetadata(ChainingMetadataRepository.java:55) [teiid-engine-8.12.17.6_4-redhat-64-2.jar:8.12.17.6_4-redhat-64-2]
>         at org.teiid.jboss.VDBService$6.run(VDBService.java:395) [teiid-jboss-integration-8.12.17.6_4-redhat-64-2.jar:8.12.17.6_4-redhat-64-2]
>         at org.teiid.jboss.VDBService$7.run(VDBService.java:446) [teiid-jboss-integration-8.12.17.6_4-redhat-64-2.jar:8.12.17.6_4-redhat-64-2]
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [rt.jar:1.8.0_171]
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [rt.jar:1.8.0_171]
>         at java.lang.Thread.run(Thread.java:748) [rt.jar:1.8.0_171]
>         at org.jboss.threads.JBossThread.run(JBossThread.java:122)



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