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https://issues.apache.org/jira/browse/HBASE-5442?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Phabricator updated HBASE-5442:
-------------------------------
Attachment: D1893.1.patch
mbautin requested code review of "[jira] [HBASE-5442] Use builder pattern in
StoreFile and HFile".
Reviewers: JIRA, stack, tedyu, Kannan, Karthik, Liyin
Cleaning up the factory method explosion in HFile writer and StoreFile. Now,
adding a new parameter to HFile/StoreFile writer initialization will not
require modifying constructor invocations all over the codebase.
TEST PLAN
Run unit tests
Deploy to dev cluster and run a load test
REVISION DETAIL
https://reviews.facebook.net/D1893
AFFECTED FILES
src/main/java/org/apache/hadoop/hbase/io/hfile/AbstractHFileWriter.java
src/main/java/org/apache/hadoop/hbase/io/hfile/HFile.java
src/main/java/org/apache/hadoop/hbase/io/hfile/HFileWriterV1.java
src/main/java/org/apache/hadoop/hbase/io/hfile/HFileWriterV2.java
src/main/java/org/apache/hadoop/hbase/mapreduce/HFileOutputFormat.java
src/main/java/org/apache/hadoop/hbase/regionserver/StoreFile.java
src/main/java/org/apache/hadoop/hbase/util/CompressionTest.java
src/test/java/org/apache/hadoop/hbase/HFilePerformanceEvaluation.java
src/test/java/org/apache/hadoop/hbase/io/TestHalfStoreFileReader.java
src/test/java/org/apache/hadoop/hbase/io/hfile/TestCacheOnWrite.java
src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFile.java
src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileBlockIndex.java
src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFilePerformance.java
src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileSeek.java
src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileWriterV2.java
src/test/java/org/apache/hadoop/hbase/io/hfile/TestReseekTo.java
src/test/java/org/apache/hadoop/hbase/io/hfile/TestSeekTo.java
src/test/java/org/apache/hadoop/hbase/mapreduce/TestLoadIncrementalHFiles.java
src/test/java/org/apache/hadoop/hbase/regionserver/CreateRandomStoreFile.java
src/test/java/org/apache/hadoop/hbase/regionserver/HFileReadWriteTest.java
src/test/java/org/apache/hadoop/hbase/regionserver/TestCompoundBloomFilter.java
src/test/java/org/apache/hadoop/hbase/regionserver/TestFSErrorsExposed.java
src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionServerBulkLoad.java
src/test/java/org/apache/hadoop/hbase/regionserver/TestStore.java
src/test/java/org/apache/hadoop/hbase/regionserver/TestStoreFile.java
src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestWALReplay.java
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> Use builder pattern in StoreFile and HFile
> ------------------------------------------
>
> Key: HBASE-5442
> URL: https://issues.apache.org/jira/browse/HBASE-5442
> Project: HBase
> Issue Type: Improvement
> Reporter: Mikhail Bautin
> Assignee: Mikhail Bautin
> Attachments: D1893.1.patch
>
>
> We have five ways to create an HFile writer, two ways to create a StoreFile
> writer, and the sets of parameters keep changing, creating a lot of
> confusion, especially when porting patches across branches. The same thing is
> happening to HColumnDescriptor. I think we should move to a "builder pattern"
> solution, e.g.
> {code:java}
> HFileWriter w = HFile.getWriterBuilder(conf, <some common args>)
> .setParameter1(value1)
> .setParameter2(value2)
> ...
> .build();
> {code}
> Each parameter setter being on its own line will make merges/cherry-pick work
> properly, we will not have to even mention default parameters again, and we
> can eliminate a dozen impossible-to-remember constructors.
> This particular JIRA addresses StoreFile and HFile refactoring. For
> HColumnDescriptor refactoring see HBASE-5357.
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