[jira] [Work started] (CLIMATE-274) Make the exception that the Dataset class throws more descriptive

["Cameron Goodale (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CLIMATE-274?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on CLIMATE-274 started by Cameron Goodale.

> Make the exception that the Dataset class throws more descriptive
> -----------------------------------------------------------------
>
>                 Key: CLIMATE-274
>                 URL: https://issues.apache.org/jira/browse/CLIMATE-274
>             Project: Apache Open Climate Workbench
>          Issue Type: Improvement
>          Components: data sources, general
>    Affects Versions: 0.2-incubating
>         Environment: OS X
>            Reporter: Cameron Goodale
>            Assignee: Cameron Goodale
>             Fix For: 0.3-incubating
>
>   Original Estimate: 2h
>  Remaining Estimate: 2h
>
> When a new Dataset Object is initialized the parameters that are required (4 total) are all checked individually as well as together, and if any of these tests fail a ValueError is raised with the following message to the user:
> "Dataset given improperly shaped array during initialization."
> I would like to try and make that error message more specific about which one of the checks raised the error.
> Example Messages:
> --------------------------------
> * Longitude Array is not 1 dimension
> * Latitude Array is not 1 dimension
> * Times Array is not 1 dimension
> * Times Array doesn't contain datetime objects
> * Values Arrays is not 3 dimensional
> * Values Array is out of order.  Expected (times, lat, lon) but got ([what ever we discovered] lon, times, lat)
> To some people this amount of check and rigor might seem overkill, but I think this is necessary since the rest of the OCW code depends on have a properly formed OCW Dataset object to work with.

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