[jira] [Created] (SOLR-4892) Add field update processors to parse/convert String-typed fields to Date, Number, and Boolean

["Steve Rowe (JIRA)" <ji...@apache.org>]

Steve Rowe created SOLR-4892:
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             Summary: Add field update processors to parse/convert String-typed fields to Date, Number, and Boolean
                 Key: SOLR-4892
                 URL: https://issues.apache.org/jira/browse/SOLR-4892
             Project: Solr
          Issue Type: New Feature
          Components: update
            Reporter: Steve Rowe
            Assignee: Steve Rowe
            Priority: Minor


Add {{FieldMutatingUpdateProcessorFactory}} subclasses {{ParseFooUpdateProcessorFactory}}, where {{Foo}} includes {{Date}}, {{Double}}, {{Long}}, and {{Boolean}}.

These factories will have a default selector that matches all fields that either don’t match any schema field, or are in the schema with the corresponding {{typeClass}}.  They can optionally support a list of multiple format specifiers.  If they see a value that is not a CharSequence, or can't parse the value using a configured format, they ignore it and leave it as is.

For multi-valued fields, these processors will not convert any values unless all are first successfully parsed.  Ordering the processors [Boolean, Long, Double, Date] will allow e.g. values [2, 5, 8.6] to be left alone by the Boolean and Long processors, but then converted by the Double processor.


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