[jira] [Updated] (IGNITE-1971) Refactor various streamers implementations

["Pavel Tupitsyn (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IGNITE-1971?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pavel Tupitsyn updated IGNITE-1971:
-----------------------------------
    Fix Version/s:     (was: 1.7)
                   1.8

> Refactor various streamers implementations
> ------------------------------------------
>
>                 Key: IGNITE-1971
>                 URL: https://issues.apache.org/jira/browse/IGNITE-1971
>             Project: Ignite
>          Issue Type: Bug
>          Components: streaming
>    Affects Versions: 1.5.0.final
>            Reporter: Denis Magda
>             Fix For: 1.8
>
>
> Re-visit streamers implementations and should address at least the following points below.
> 1) {{start}} method in streamers implementations throws {{IllegalArgumentException}}.
> According to the contract of IllegalArgumentException this exception is thrown only when an invalid argument is passed into the function. However no argument is passed to the method at all and we shouldn't throw this exception from this point of execution.
> My suggestion is to use org.apache.ignite.IgniteIllegalStateException if we don't find better alternative. See how it's used in Ignite.ignite() method description.
> 2) Streamers perform the same basics checks in their implementation of {{start}} method.
> It makes sense to add {{start}} method to StreamAdapter and perform there basic checks that are the same for every streamer.



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