[jira] [Updated] (BROOKLYN-368) YAML-based errors are too coarse

["Sam Corbett (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/BROOKLYN-368?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sam Corbett updated BROOKLYN-368:
---------------------------------
    Summary: YAML-based errors are too coarse  (was: YAML parsing errors are too coarse)

> YAML-based errors are too coarse
> --------------------------------
>
>                 Key: BROOKLYN-368
>                 URL: https://issues.apache.org/jira/browse/BROOKLYN-368
>             Project: Brooklyn
>          Issue Type: Sub-task
>            Reporter: Sam Corbett
>
> Here's an error [reported|https://github.com/brooklyncentral/clocker/issues/345] by a user of Clocker:
> {code}
> Remote catalog url classpath://io.brooklyn.clocker.swarm:swarm/swarm.bom can't be fetched.: Error getting resource 'classpath://io.brooklyn.clocker.swarm:swarm/swarm.bom' for classload:[OSGi::0.0.0[[CatalogBundleDto{symbolicName=null, version=null, url=https://oss.sonatype.org/service/local/artifact/maven/redirect?r=snapshots&g=io.brooklyn.etcd&a=brooklyn-etcd&v=2.3.0-SNAPSHOT}, CatalogBundleDto{symbolicName=null, version=null, url=https://oss.sonatype.org/service/local/repositories/releases/content/io/brooklyn/clocker/common/2.0.0/common-2.0.0.jar}, CatalogBundleDto{symbolicName=null, version=null, url=https://oss.sonatype.org/service/local/repositories/releases/content/io/brooklyn/clocker/swarm/2.0.0/swarm-2.0.0.jar}, CatalogBundleDto{symbolicName=null, version=null, url=https://oss.sonatype.org/service/local/repositories/releases/content/io/brooklyn/clocker/kubernetes/2.0.0/kubernetes-2.0.0.jar}]]];[java:AggregateClassLoader[AggregateClassLoader[sun.misc.Launcher$AppClassLoader@15aeb7ab, AggregateClassLoader[], AggregateClassLoader[AggregateClassLoader[AggregateClassLoader[org.apache.brooklyn.util.javalang.LoadedClassLoader@3d68e54], AggregateClassLoader[]]]]]]: IOException: Error accessing classpath://io.brooklyn.clocker.swarm:swarm/swarm.bom: java.io.IOException: io.brooklyn.clocker.swarm:swarm/swarm.bom not found on classpath
> {code}
> The important information is right at the start: swarm.bom can't be fetched. The rest is noise only suitable for a debug log.
> Brooklyn leaks too much Java to end users. For example, if you try to add this blueprint to the catalogue:
> {code}
> brooklyn.catalog:
>   item:
>   - type: org.apache.brooklyn.entity.software.base.VanillaSoftwareProcess
> {code}
> The error you receive is "java.util.ArrayList cannot be cast to java.util.Map" (i.e. the hyphen shouldn't be there). There is no indication of where in the blueprint the error occurred and what the expected syntax is.
> A third common mistake is typing {{brooklyn.config}} in DSL strings. The correct value is {{brooklyn:config}}. It causes problems that are hard to trace. We should either permit the former or provide "did you mean this?" feedback.
> Lastly, when bundles' dependencies cannot be wired the user is told "cannot load catalogue item". Brooklyn would save them a lot of time by telling them why this is the case. 



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