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https://issues.apache.org/jira/browse/ACCUMULO-871?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13502664#comment-13502664
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Hudson commented on ACCUMULO-871:
---------------------------------
Integrated in Accumulo-Trunk #563 (See
[https://builds.apache.org/job/Accumulo-Trunk/563/])
ACCUMULO-871
Updated the ColumnVisibility class to be more aggressive and consistent when
flattening/normalizing expressions. Labels are dedupe'd and sorted and
equivalent subtrees are pruned. (Revision 1412448)
Result = SUCCESS
ujustgotbilld :
Files :
*
/accumulo/trunk/core/src/main/java/org/apache/accumulo/core/security/ColumnVisibility.java
*
/accumulo/trunk/core/src/test/java/org/apache/accumulo/core/security/ColumnVisibilityTest.java
> ColumnVisibilities should do more to create normalized representations of
> expressions
> -------------------------------------------------------------------------------------
>
> Key: ACCUMULO-871
> URL: https://issues.apache.org/jira/browse/ACCUMULO-871
> Project: Accumulo
> Issue Type: Improvement
> Affects Versions: 1.5.0
> Environment: OSX
> Reporter: William Slacum
> Assignee: William Slacum
> Priority: Minor
> Attachments: col.vis.patch, CVTest.java
>
>
> ColumnVisibilities offer a `flatten()` functionality, which attempts to
> normalize a given expression. So, if I had an expression, `b&a&c`, and I
> `flatten`'d it, I'd get back `a&b&c`.
> Through some testing, I found that this is applied and not applied depending
> on how the expression is written. For instance, if I had something like
> `(b&a)&c`, I would get back something like `c&a&b`.
> It's not much more code to provide a correct normalized form of expressions
> as well do some more work to detect and eliminate expressions that boil down
> to `expr&expr` or `expr|expr`.
> I've attached a sample program that shows some output of what the current
> capability is and what I think it should output.
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