[jira] [Created] (ATLAS-1955) Validation for Attributes

["Israel Varea (JIRA)" <ji...@apache.org>]

Israel Varea created ATLAS-1955:
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             Summary: Validation for Attributes
                 Key: ATLAS-1955
                 URL: https://issues.apache.org/jira/browse/ATLAS-1955
             Project: Atlas
          Issue Type: New Feature
          Components:  atlas-core
    Affects Versions: 0.9-incubating
            Reporter: Israel Varea
             Fix For: 0.9-incubating


It would be very nice that Atlas model could contain a way to represent attribute validation. 

A simple example is that we would like to model a Person, with attributes Name, Email and Country. Now we would like to specify that Email has to follow a specific regular expression, so it would be nice if we could set Email -> hasValidation -> EmailRegex, with EmailRegex having:

Name: Email Regular Expresion
Expression: /[0-9a-z]+@[0-9a-z]+.[0-9a-z]+/

For more complex types of validation, e.g. checking card number validity, it could be added some external validator function/service.

Name: Credit Card Number Validator
Validator: org.apache.atlas.validators.creditcard or https://host:port/creditCardValidator

For validations from a reference table, for example a country name, it could be:

Name: Country Name Ref Validator
Reference Column: <country_name_column>

where <country_name_column> would be an instance of type Hive_Column or HBase_Column.

Since this is a kind of Standarization, it could be placed in [Area 5|https://cwiki.apache.org/confluence/display/ATLAS/Area+5+-+Standards].

A similar approach is followed in software [Kylo|https://github.com/Teradata/kylo/tree/master/integrations/spark/spark-validate-cleanse]



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