[jira] [Updated] (WHIRR-216) Improve error message if whirr.instance-templates left out of config

["Andrei Savu (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/WHIRR-216?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrei Savu updated WHIRR-216:
------------------------------

    Attachment: WHIRR-216.patch

I've made instance-templates mandatory and updated the tests. 

> Improve error message if whirr.instance-templates left out of config
> --------------------------------------------------------------------
>
>                 Key: WHIRR-216
>                 URL: https://issues.apache.org/jira/browse/WHIRR-216
>             Project: Whirr
>          Issue Type: Improvement
>          Components: cli
>    Affects Versions: 0.3.0
>            Reporter: Johan Oskarsson
>            Priority: Trivial
>             Fix For: 0.5.0
>
>         Attachments: WHIRR-216.patch
>
>
> When launching a cluster without whirr.instance-templates specified in the config file used the following error message appears. It could be made more user friendly.
> bin/whirr launch-cluster --config ~/cassandra.properties 
> Bootstrapping cluster
> Exception in thread "main" java.lang.IndexOutOfBoundsException: index (0) must be less than size (0)
> 	at com.google.common.base.Preconditions.checkElementIndex(Preconditions.java:301)
> 	at com.google.common.base.Preconditions.checkElementIndex(Preconditions.java:280)
> 	at com.google.common.collect.Iterables.get(Iterables.java:610)
> 	at org.apache.whirr.cluster.actions.ScriptBasedClusterAction.execute(ScriptBasedClusterAction.java:77)
> 	at org.apache.whirr.service.Service.launchCluster(Service.java:71)
> 	at org.apache.whirr.cli.command.LaunchClusterCommand.run(LaunchClusterCommand.java:61)
> 	at org.apache.whirr.cli.Main.run(Main.java:65)
> 	at org.apache.whirr.cli.Main.main(Main.java:91)

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