[teiid-issues] [JBoss JIRA] (TEIID-5183) NPE in Swagger translator

[Steven Hawkins (JIRA)]

    [ https://issues.jboss.org/browse/TEIID-5183?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13509880#comment-13509880 ] 

Steven Hawkins commented on TEIID-5183:
---------------------------------------

> I applied all changes from the issue and it's really better now. Could you please check another interesting case? It seems there is some bug related to swagger procs execution.

That is possible.  I've already seen issues with null handling, it's likely there are additional kinks.  I'll take a look at this to see if it's related to the metadata.  If not, it will be moved to it's own issue.

> another problem, if you change the endpoint which I used above to use secured http without any security domains:

Please spawn another issue to capture that.

> NPE in Swagger translator
> -------------------------
>
>                 Key: TEIID-5183
>                 URL: https://issues.jboss.org/browse/TEIID-5183
>             Project: Teiid
>          Issue Type: Bug
>          Components: Misc. Connectors
>    Affects Versions: 9.3.4
>         Environment: teiid-9.3.4 on WildFly Full 10.0.0.Final (WildFly Core 2.0.10.Final)
>            Reporter: dalex dalex
>            Assignee: Steven Hawkins
>             Fix For: 10.1, 9.3.6, 10.0.2
>
>         Attachments: swagger_null_values.jpg
>
>
> When using the http://api.apis.guru/v2/specs/azure.com/redis/2017-10-01/ link as an endpoint for swagger resource adapter Teiid throws up the following error message (in bootstrapping phase), though with http://petstore.swagger.io/v2 endpoint according to the https://teiid.gitbooks.io/documents/reference/Swagger_Translator.html documentation the translator works:
> {code:noformat}
> 2017-12-18 16:14:43,975 WARN  [org.teiid.RUNTIME] (Worker1_async-teiid-threads1)  TEIID50036 VDB test.1 model "mswagger" metadata failed to load. Reason:java.lang.NullPointerExceptio
> n: java.lang.NullPointerException
>         at org.teiid.metadata.MetadataFactory.setUUID(MetadataFactory.java:155)
>         at org.teiid.metadata.MetadataFactory.addProcedureParameter(MetadataFactory.java:421)
>         at org.teiid.translator.swagger.SwaggerMetadataProcessor.addProcedureParameters(SwaggerMetadataProcessor.java:560)
>         at org.teiid.translator.swagger.SwaggerMetadataProcessor.addProcedure(SwaggerMetadataProcessor.java:261)
>         at org.teiid.translator.swagger.SwaggerMetadataProcessor.process(SwaggerMetadataProcessor.java:206)
>         at org.teiid.translator.swagger.SwaggerMetadataProcessor.process(SwaggerMetadataProcessor.java:74)
>         at org.teiid.translator.ExecutionFactory.getMetadata(ExecutionFactory.java:961)
>         at org.teiid.query.metadata.NativeMetadataRepository.getMetadata(NativeMetadataRepository.java:96)
>         at org.teiid.query.metadata.NativeMetadataRepository.loadMetadata(NativeMetadataRepository.java:62)
>         at org.teiid.query.metadata.ChainingMetadataRepository.loadMetadata(ChainingMetadataRepository.java:55)
>         at org.teiid.jboss.VDBService$6.run(VDBService.java:341)
>         at org.teiid.jboss.VDBService$7.run(VDBService.java:392)
>         at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:284)
>         at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:119)
>         at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:210)
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>         at java.lang.Thread.run(Thread.java:745)
> {code}
> The http://api.apis.guru/v2/specs/azure.com/redis/2017-10-01/ endpoint supports swagger API according to the https://apis.guru/browse-apis/ link and I can see json output when requesting the http://api.apis.guru/v2/specs/azure.com/redis/2017-10-01/swagger.json link. Probably the NPE appears because of RefParameter type which is not handled in SwaggerMetadataProcessor.addProcedureParameters method which leads to name = null.



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