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https://issues.apache.org/jira/browse/HBASE-4176?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13081853#comment-13081853
 ] 

[email protected] commented on HBASE-4176:
------------------------------------------------------



bq.  On 2011-08-09 18:28:06, Todd Lipcon wrote:
bq.  > I hesitate to bring this up, but: do we really want to include a 
hand-written lexer/parser here? Why not build on something like javacc or 
antlr? I fear this will be difficult to maintain or extend as is, and as a user 
facing API, once we commit it, we're stuck with it.

This is a valid point. 

I'm inclined toward committing what we have here.  Minor bug fixes should be 
easy enough since there are tests that can be extended easy enough to cover 
bugs found.   If maintenance going forward is an issue, could redo w/ parser 
generator in separate issue.


- Michael


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On 2011-08-09 18:59:28, Anirudh Todi wrote:
bq.  
bq.  -----------------------------------------------------------
bq.  This is an automatically generated e-mail. To reply, visit:
bq.  https://reviews.apache.org/r/1326/
bq.  -----------------------------------------------------------
bq.  
bq.  (Updated 2011-08-09 18:59:28)
bq.  
bq.  
bq.  Review request for hbase, Todd Lipcon, Ted Yu, Michael Stack, and Jonathan 
Gray.
bq.  
bq.  
bq.  Summary
bq.  -------
bq.  
bq.  https://issues.apache.org/jira/browse/HBASE-4176: Exposing HBase Filters 
to the Thrift API
bq.  
bq.  Currently, to use any of the filters, one has to explicitly add a scanner 
for the filter in the Thrift API making it messy and long. 
bq.  With this patch, I am trying to add support for all the filters in a clean 
way. 
bq.  The user specifies a filter via a string. The string is parsed on the 
server to construct the filter. More information can be found in the attached 
document named Filter Language
bq.  
bq.  This patch is trying to extend and further the progress made by the 
patches in HBASE-1744
bq.  
bq.  There is document attached to the HBASE-4176 JIRA that describes this 
patch in further detail
bq.  
bq.  
bq.  This addresses bug HBASE-4176.
bq.      https://issues.apache.org/jira/browse/HBASE-4176
bq.  
bq.  
bq.  Diffs
bq.  -----
bq.  
bq.    /src/main/java/org/apache/hadoop/hbase/filter/ColumnCountGetFilter.java 
1155450 
bq.    
/src/main/java/org/apache/hadoop/hbase/filter/ColumnPaginationFilter.java 
1155450 
bq.    /src/main/java/org/apache/hadoop/hbase/filter/ColumnPrefixFilter.java 
1155450 
bq.    /src/main/java/org/apache/hadoop/hbase/filter/ColumnRangeFilter.java 
1155450 
bq.    /src/main/java/org/apache/hadoop/hbase/filter/CompareFilter.java 1155450 
bq.    /src/main/java/org/apache/hadoop/hbase/filter/DependentColumnFilter.java 
1155450 
bq.    /src/main/java/org/apache/hadoop/hbase/filter/FamilyFilter.java 1155450 
bq.    /src/main/java/org/apache/hadoop/hbase/filter/Filter.java 1155450 
bq.    /src/main/java/org/apache/hadoop/hbase/filter/FilterBase.java 1155450 
bq.    /src/main/java/org/apache/hadoop/hbase/filter/FilterList.java 1155450 
bq.    /src/main/java/org/apache/hadoop/hbase/filter/FirstKeyOnlyFilter.java 
1155450 
bq.    /src/main/java/org/apache/hadoop/hbase/filter/InclusiveStopFilter.java 
1155450 
bq.    /src/main/java/org/apache/hadoop/hbase/filter/KeyOnlyFilter.java 1155450 
bq.    
/src/main/java/org/apache/hadoop/hbase/filter/MultipleColumnPrefixFilter.java 
1155450 
bq.    /src/main/java/org/apache/hadoop/hbase/filter/PageFilter.java 1155450 
bq.    /src/main/java/org/apache/hadoop/hbase/filter/ParseConstants.java 
PRE-CREATION 
bq.    /src/main/java/org/apache/hadoop/hbase/filter/ParseFilter.java 
PRE-CREATION 
bq.    /src/main/java/org/apache/hadoop/hbase/filter/PrefixFilter.java 1155450 
bq.    /src/main/java/org/apache/hadoop/hbase/filter/QualifierFilter.java 
1155450 
bq.    /src/main/java/org/apache/hadoop/hbase/filter/RowFilter.java 1155450 
bq.    
/src/main/java/org/apache/hadoop/hbase/filter/SingleColumnValueExcludeFilter.java
 1155450 
bq.    
/src/main/java/org/apache/hadoop/hbase/filter/SingleColumnValueFilter.java 
1155450 
bq.    /src/main/java/org/apache/hadoop/hbase/filter/TimestampsFilter.java 
1155450 
bq.    /src/main/java/org/apache/hadoop/hbase/filter/ValueFilter.java 1155450 
bq.    /src/main/java/org/apache/hadoop/hbase/thrift/ThriftServer.java 1155450 
bq.    /src/main/java/org/apache/hadoop/hbase/thrift/generated/Hbase.java 
1155450 
bq.    /src/main/resources/org/apache/hadoop/hbase/thrift/Hbase.thrift 1155450 
bq.    /src/test/java/org/apache/hadoop/hbase/filter/TestParseFilter.java 
PRE-CREATION 
bq.  
bq.  Diff: https://reviews.apache.org/r/1326/diff
bq.  
bq.  
bq.  Testing
bq.  -------
bq.  
bq.  patch includes one test: TestParseFilter.java
bq.  
bq.  
bq.  Thanks,
bq.  
bq.  Anirudh
bq.  
bq.



> Exposing HBase Filters to the Thrift API
> ----------------------------------------
>
>                 Key: HBASE-4176
>                 URL: https://issues.apache.org/jira/browse/HBASE-4176
>             Project: HBase
>          Issue Type: Improvement
>          Components: thrift
>            Reporter: Anirudh Todi
>            Assignee: Anirudh Todi
>            Priority: Minor
>         Attachments: Filter Language(2).docx, Filter Language.docx, 
> HBASE-4176.patch
>
>
> Currently, to use any of the filters, one has to explicitly add a scanner for 
> the filter in the Thrift API making it messy and long. With this patch, I am 
> trying to add support for all the filters in a clean way. The user specifies 
> a filter via a string. The string is parsed on the server to construct the 
> filter. More information can be found in the attached document named Filter 
> Language
> This patch is trying to extend and further the progress made by the patches 
> in the HBASE-1744 JIRA (https://issues.apache.org/jira/browse/HBASE-1744)

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