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Posted to issues@metron.apache.org by cestella <gi...@git.apache.org> on 2018/06/16 17:30:22 UTC

[GitHub] metron pull request #1064: METRON-1619: Stellar empty collections should be ...

GitHub user cestella opened a pull request:

    https://github.com/apache/metron/pull/1064

    METRON-1619: Stellar empty collections should be considered false in boolean expressions

    ## Contributor Comments
    Similar to #1063 we should consider empty collections and maps as falsey.  This PR builds on #1063, so it should be merged after.
    
    You can test this in the REPL similar to #1063 except substituting `[]` for `is_alert`.
    
    
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You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/cestella/incubator-metron stellar_empty_lists_falsey

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/metron/pull/1064.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #1064
    
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commit fc215e76500a23b1da20ae189a2f5db35c076786
Author: cstella <ce...@...>
Date:   2018-06-16T16:31:35Z

    Make false be null in boolean expressions

commit 95929c072798e0700231657903f12e0590280890
Author: cstella <ce...@...>
Date:   2018-06-16T16:33:29Z

    additional tests

commit 32e1f1e2fe7ed18a307defebcb6c9db8972209f5
Author: cstella <ce...@...>
Date:   2018-06-16T17:20:02Z

    Stellar empty lists in boolean expressions should be considered false

commit 74194408bdcf05eaabb932d1b1f162ddd607bf35
Author: cstella <ce...@...>
Date:   2018-06-16T17:26:18Z

    Updating falsey

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[GitHub] metron pull request #1064: METRON-1619: Stellar empty collections should be ...

Posted by cestella <gi...@git.apache.org>.
Github user cestella commented on a diff in the pull request:

    https://github.com/apache/metron/pull/1064#discussion_r197929046
  
    --- Diff: metron-stellar/stellar-common/README.md ---
    @@ -54,6 +54,12 @@ The Stellar language supports the following:
     * The ability to have parenthesis to make order of operations explicit
     * User defined functions, including Lambda expressions 
     
    +### Boolean Expressions
    +
    +Similar to python and javascript, empty collections (e.g. `[]` and
    --- End diff --
    
    Yeah, what do people think about merging the two PRs into one and reviewing them together?  I split them up anticipating that the community might want one or the other but not necessarily both.  I am thinking that I close #1063 and keep this one.
    
    Thoughts?


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[GitHub] metron pull request #1064: METRON-1619: Stellar empty collections should be ...

Posted by ottobackwards <gi...@git.apache.org>.
Github user ottobackwards commented on a diff in the pull request:

    https://github.com/apache/metron/pull/1064#discussion_r195931103
  
    --- Diff: metron-stellar/stellar-common/README.md ---
    @@ -54,6 +54,12 @@ The Stellar language supports the following:
     * The ability to have parenthesis to make order of operations explicit
     * User defined functions, including Lambda expressions 
     
    +### Boolean Expressions
    +
    +Similar to python and javascript, empty collections (e.g. `[]` and
    --- End diff --
    
    Or am i miss understanding the explicit null case?


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[GitHub] metron pull request #1064: METRON-1619: Stellar empty collections should be ...

Posted by ottobackwards <gi...@git.apache.org>.
Github user ottobackwards commented on a diff in the pull request:

    https://github.com/apache/metron/pull/1064#discussion_r195931024
  
    --- Diff: metron-stellar/stellar-common/README.md ---
    @@ -54,6 +54,12 @@ The Stellar language supports the following:
     * The ability to have parenthesis to make order of operations explicit
     * User defined functions, including Lambda expressions 
     
    +### Boolean Expressions
    +
    +Similar to python and javascript, empty collections (e.g. `[]` and
    --- End diff --
    
    Missing variables vs. NULL variables... this may be confusing.  What this is saying is
    we support
    - boolean with true or false
    - variables that are present but explicitly null or empty
    - variables that are NOT present



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[GitHub] metron pull request #1064: METRON-1619: Stellar empty collections should be ...

Posted by ottobackwards <gi...@git.apache.org>.
Github user ottobackwards commented on a diff in the pull request:

    https://github.com/apache/metron/pull/1064#discussion_r195931040
  
    --- Diff: metron-stellar/stellar-common/README.md ---
    @@ -54,6 +54,12 @@ The Stellar language supports the following:
     * The ability to have parenthesis to make order of operations explicit
     * User defined functions, including Lambda expressions 
     
    +### Boolean Expressions
    +
    +Similar to python and javascript, empty collections (e.g. `[]` and
    --- End diff --
    
    This should be in the first pr


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[GitHub] metron pull request #1064: METRON-1619: Stellar empty collections should be ...

Posted by asfgit <gi...@git.apache.org>.
Github user asfgit closed the pull request at:

    https://github.com/apache/metron/pull/1064


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[GitHub] metron issue #1064: METRON-1619: Stellar empty collections should be conside...

Posted by cestella <gi...@git.apache.org>.
Github user cestella commented on the issue:

    https://github.com/apache/metron/pull/1064
  
    @merrimanr would you mind taking a look at this one since you looked at the last one that subsumes.


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[GitHub] metron issue #1064: METRON-1619: Stellar empty collections should be conside...

Posted by ottobackwards <gi...@git.apache.org>.
Github user ottobackwards commented on the issue:

    https://github.com/apache/metron/pull/1064
  
    +1 by inspection


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[GitHub] metron issue #1064: METRON-1619: Stellar empty collections should be conside...

Posted by cestella <gi...@git.apache.org>.
Github user cestella commented on the issue:

    https://github.com/apache/metron/pull/1064
  
    Ok, @simonellistonball I've updated the docs appropriately and @ottobackwards I added tests for match as well as cleaning up the documentation.  This PR should be interpreted to contain both empty list and missing variable falsey.


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