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https://issues.apache.org/jira/browse/STORM-1126?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Chuck Burgess updated STORM-1126:
---------------------------------
Assignee: Chuck Burgess
Flags: Patch
Description:
Allow the configMethod implementation to handle calling a method that requires
no arguments, by omitting the "args" line.
{noformat}
configMethods
- name: "myMethod"
{noformat}
was:
Can the configMethod implementation handle calling a method that requires no
arguments? If so, I cannot figure out how to write that in the YAML.
{noformat}
configMethods
- name: "myMethod"
{noformat}
does not work:
{noformat}
Exception in thread "main" java.lang.NullPointerException
at
org.apache.storm.flux.FluxBuilder.findCompatibleMethod(FluxBuilder.java:445)
at
org.apache.storm.flux.FluxBuilder.invokeConfigMethods(FluxBuilder.java:424)
at org.apache.storm.flux.FluxBuilder.buildObject(FluxBuilder.java:302)
at
org.apache.storm.flux.FluxBuilder.buildComponents(FluxBuilder.java:339)
at org.apache.storm.flux.FluxBuilder.buildTopology(FluxBuilder.java:75)
at org.apache.storm.flux.Flux.runCli(Flux.java:153)
at org.apache.storm.flux.Flux.main(Flux.java:98)
{noformat}
{noformat}
configMethods
- name: "myMethod"
args:
{noformat}
does not work:
{noformat}
...
Caused by: java.lang.NullPointerException
at
org.apache.storm.flux.model.ConfigMethodDef.setArgs(ConfigMethodDef.java:45)
{noformat}
{noformat}
configMethods
- name: "myMethod"
args: []
{noformat}
does not work:
{noformat}
Exception in thread "main" java.lang.IllegalArgumentException: Unable to find
configuration method 'build' in class
'io.latent.storm.rabbitmq.config.ConsumerConfigBuilder' with arguments [].
at
org.apache.storm.flux.FluxBuilder.invokeConfigMethods(FluxBuilder.java:431)
at org.apache.storm.flux.FluxBuilder.buildObject(FluxBuilder.java:302)
at
org.apache.storm.flux.FluxBuilder.buildComponents(FluxBuilder.java:339)
at org.apache.storm.flux.FluxBuilder.buildTopology(FluxBuilder.java:75)
at org.apache.storm.flux.Flux.runCli(Flux.java:153)
at org.apache.storm.flux.Flux.main(Flux.java:98)
{noformat}
(presumably because this results in usage of `build( empty list)` rather than
just `build()`)
(originally filed at https://github.com/ptgoetz/flux/issues/17)
Issue Type: New Feature (was: Question)
Summary: Allow a configMethod that takes no arguments (was: How to
Specify a configMethod that takes no arguments)
> Allow a configMethod that takes no arguments
> --------------------------------------------
>
> Key: STORM-1126
> URL: https://issues.apache.org/jira/browse/STORM-1126
> Project: Apache Storm
> Issue Type: New Feature
> Components: Flux
> Affects Versions: 0.10.0
> Reporter: Chuck Burgess
> Assignee: Chuck Burgess
> Priority: Minor
>
> Allow the configMethod implementation to handle calling a method that
> requires no arguments, by omitting the "args" line.
> {noformat}
> configMethods
> - name: "myMethod"
> {noformat}
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