[jira] [Created] (IGNITE-18954) Design a language for parsing of a filter expression

["Mirza Aliev (Jira)" <ji...@apache.org>]

Mirza Aliev created IGNITE-18954:
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             Summary: Design a language for parsing of a filter expression
                 Key: IGNITE-18954
                 URL: https://issues.apache.org/jira/browse/IGNITE-18954
             Project: Ignite
          Issue Type: Improvement
            Reporter: Mirza Aliev


{*}Motivation{*}:

We need to parse and be able to use filters, that user set for the distribution zone

*Definition of done:*
 * Filters are parsed and it is possible to filter arbitrary set of attributes

*Implementation details:*

 Language must allow to perform simple operations, like 
* “ “ – default empty filter, means that all nodes match
* () expressions with parentheses 
* “A” && “B”, () && ()
* “A” || “B”, () || ()
* !“A”, !()
Attributes representation must look like key -> value pairs, like 

{noformat}
(region = EU || region = US) && (storage != HDD || storage = SSD)
{noformat}






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