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From "Josh Elser" <josh.el...@gmail.com>
Subject Re: Review Request 22003: Replication: Client-facing changes
Date Fri, 06 Jun 2014 17:14:35 GMT


> On June 3, 2014, 6:11 p.m., Bill Havanki wrote:
> > core/src/main/java/org/apache/accumulo/core/client/impl/ReplicationClient.java,
line 46
> > <https://reviews.apache.org/r/22003/diff/1/?file=598220#file598220line46>
> >
> >     If this really needs to be a utility class, it needs a private constructor to
avoid instantiation. But, I would *so much rather* it be a regular class to allow mocking
/ testing / dependency injection.
> 
> Josh Elser wrote:
>     The "cruft" of this class was inherited by copying it from MasterClient. I can understand
where you're coming from, but I will say that most of the code in here isn't the "critical"
thing to directly test. It is covered by the other tests which use this to actually connect
to a remote service.
>     
>     I could convert it to a regular class with instance methods, or some factory class
which returns instances of these connections, but honestly I don't see that buying us much
anything in respect to code coverage or practical tests.
> 
> Bill Havanki wrote:
>     That's fine with me. Keeping it consistent with other similar classes is a good goal.
This is something we can re-address later if it does become problematic, but if you don't
see it being useful to do now, that's good enough for me.

I'll open up a general ticket to revisit both of these classes and see what we can extract
into a more testable, common base.


> On June 3, 2014, 6:11 p.m., Bill Havanki wrote:
> > core/src/main/java/org/apache/accumulo/core/client/replication/ReplicaSystemFactory.java,
line 50
> > <https://reviews.apache.org/r/22003/diff/1/?file=598229#file598229line50>
> >
> >     Just check clz? Or use o instanceof ReplicaSystem
> 
> Josh Elser wrote:
>     Is there actually a difference between what's in the code and what `instanceof ReplicaSystem`
would actually do? Could I have a class that implements ReplicaSystem that isn't an instanceof
it? I don't know, tbh.
> 
> Bill Havanki wrote:
>     Sorry, should have explained my thought process more. You could just do isAssignableFrom(clz)
right away, without making an instance, and detect the case where clz isn't ReplicaSystem.class
or a subclass. Then you wouldn't have to call Class.newInstance on that class type when it
ends up useless anyway.

Ahhh, ok, I got ya.


- Josh


-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/22003/#review44646
-----------------------------------------------------------


On May 29, 2014, 2:52 a.m., Josh Elser wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/22003/
> -----------------------------------------------------------
> 
> (Updated May 29, 2014, 2:52 a.m.)
> 
> 
> Review request for accumulo.
> 
> 
> Bugs: ACCUMULO-378
>     https://issues.apache.org/jira/browse/ACCUMULO-378
> 
> 
> Repository: accumulo
> 
> 
> Description
> -------
> 
> "Public-facing" changes. Thrift IDLs, protobufs, client API additions, monitor additions.
> 
> 
> Diffs
> -----
> 
>   core/pom.xml 2c3f648 
>   core/src/main/java/org/apache/accumulo/core/Constants.java 7d602bb 
>   core/src/main/java/org/apache/accumulo/core/client/Connector.java 4a2acff 
>   core/src/main/java/org/apache/accumulo/core/client/admin/ReplicationOperations.java
PRE-CREATION 
>   core/src/main/java/org/apache/accumulo/core/client/impl/ConnectorImpl.java 0df35f6

>   core/src/main/java/org/apache/accumulo/core/client/impl/MasterClient.java 1fa8f12 
>   core/src/main/java/org/apache/accumulo/core/client/impl/ReplicationClient.java PRE-CREATION

>   core/src/main/java/org/apache/accumulo/core/client/impl/ReplicationOperationsImpl.java
PRE-CREATION 
>   core/src/main/java/org/apache/accumulo/core/client/mock/MockAccumulo.java 2c26ecc 
>   core/src/main/java/org/apache/accumulo/core/client/mock/MockConnector.java 996198c

>   core/src/main/java/org/apache/accumulo/core/client/mock/MockTable.java cb50761 
>   core/src/main/java/org/apache/accumulo/core/client/mock/MockTableOperations.java a44a027

>   core/src/main/java/org/apache/accumulo/core/client/replication/PeerExistsException.java
PRE-CREATION 
>   core/src/main/java/org/apache/accumulo/core/client/replication/PeerNotFoundException.java
PRE-CREATION 
>   core/src/main/java/org/apache/accumulo/core/client/replication/ReplicaSystem.java PRE-CREATION

>   core/src/main/java/org/apache/accumulo/core/client/replication/ReplicaSystemFactory.java
PRE-CREATION 
>   core/src/main/java/org/apache/accumulo/core/client/replication/ReplicationTable.java
PRE-CREATION 
>   core/src/main/java/org/apache/accumulo/core/conf/Property.java 1200fd1 
>   core/src/main/java/org/apache/accumulo/core/data/ConditionalMutation.java e43968c 
>   core/src/main/java/org/apache/accumulo/core/data/Mutation.java 42fa143 
>   core/src/main/java/org/apache/accumulo/core/data/thrift/MultiScanResult.java f0b8a87

>   core/src/main/java/org/apache/accumulo/core/data/thrift/ScanResult.java 6472587 
>   core/src/main/java/org/apache/accumulo/core/data/thrift/TConditionalMutation.java 3f9b3f7

>   core/src/main/java/org/apache/accumulo/core/data/thrift/TMutation.java f698892 
>   core/src/main/java/org/apache/accumulo/core/data/thrift/UpdateErrors.java 59ce5cb 
>   core/src/main/java/org/apache/accumulo/core/iterators/Combiner.java ceb4411 
>   core/src/main/java/org/apache/accumulo/core/metadata/schema/MetadataSchema.java 06eae23

>   core/src/main/java/org/apache/accumulo/core/protobuf/ProtobufUtil.java PRE-CREATION

>   core/src/main/java/org/apache/accumulo/core/replication/AccumuloReplicationReplayer.java
PRE-CREATION 
>   core/src/main/java/org/apache/accumulo/core/replication/PrintReplicationRecords.java
PRE-CREATION 
>   core/src/main/java/org/apache/accumulo/core/replication/ReplicaSystemHelper.java PRE-CREATION

>   core/src/main/java/org/apache/accumulo/core/replication/ReplicationConfigurationUtil.java
PRE-CREATION 
>   core/src/main/java/org/apache/accumulo/core/replication/ReplicationSchema.java PRE-CREATION

>   core/src/main/java/org/apache/accumulo/core/replication/ReplicationTarget.java PRE-CREATION

>   core/src/main/java/org/apache/accumulo/core/replication/StatusFormatter.java PRE-CREATION

>   core/src/main/java/org/apache/accumulo/core/replication/StatusUtil.java PRE-CREATION

>   core/src/main/java/org/apache/accumulo/core/replication/proto/Replication.java PRE-CREATION

>   core/src/main/java/org/apache/accumulo/core/replication/thrift/KeyValues.java PRE-CREATION

>   core/src/main/java/org/apache/accumulo/core/replication/thrift/RemoteReplicationErrorCode.java
PRE-CREATION 
>   core/src/main/java/org/apache/accumulo/core/replication/thrift/RemoteReplicationException.java
PRE-CREATION 
>   core/src/main/java/org/apache/accumulo/core/replication/thrift/Replication.java PRE-CREATION

>   core/src/main/java/org/apache/accumulo/core/replication/thrift/ReplicationCoordinator.java
PRE-CREATION 
>   core/src/main/java/org/apache/accumulo/core/replication/thrift/ReplicationCoordinatorErrorCode.java
PRE-CREATION 
>   core/src/main/java/org/apache/accumulo/core/replication/thrift/ReplicationCoordinatorException.java
PRE-CREATION 
>   core/src/main/java/org/apache/accumulo/core/replication/thrift/ReplicationServicer.java
PRE-CREATION 
>   core/src/main/java/org/apache/accumulo/core/replication/thrift/WalEdits.java PRE-CREATION

>   core/src/main/java/org/apache/accumulo/core/schema/Section.java PRE-CREATION 
>   core/src/main/java/org/apache/accumulo/core/tabletserver/thrift/ReplicationFailedException.java
PRE-CREATION 
>   core/src/main/protobuf/replication.proto PRE-CREATION 
>   core/src/main/scripts/generate-protobuf.sh PRE-CREATION 
>   core/src/main/scripts/generate-thrift.sh 5a5d69f 
>   core/src/main/thrift/data.thrift ae6f439 
>   core/src/main/thrift/replication.thrift PRE-CREATION 
>   core/src/test/java/org/apache/accumulo/core/replication/ReplicationConfigurationUtilTest.java
PRE-CREATION 
>   core/src/test/java/org/apache/accumulo/core/replication/ReplicationOperationsImplTest.java
PRE-CREATION 
>   core/src/test/java/org/apache/accumulo/core/replication/ReplicationSchemaTest.java
PRE-CREATION 
>   core/src/test/java/org/apache/accumulo/core/replication/ReplicationTargetTest.java
PRE-CREATION 
>   core/src/test/java/org/apache/accumulo/core/replication/StatusUtilTest.java PRE-CREATION

>   core/src/test/java/org/apache/accumulo/core/replication/proto/StatusTest.java PRE-CREATION

>   docs/src/main/asciidoc/accumulo_user_manual.asciidoc fec40ca 
>   docs/src/main/asciidoc/chapters/replication.txt PRE-CREATION 
>   docs/src/main/resources/design/ACCUMULO-378-design.mdtext PRE-CREATION 
>   docs/src/main/resources/state/replicationstatus.gv PRE-CREATION 
>   docs/src/main/resources/state/replicationstatus.png PRE-CREATION 
>   minicluster/src/main/java/org/apache/accumulo/minicluster/impl/MiniAccumuloConfigImpl.java
3258991 
>   server/monitor/pom.xml 411812c 
>   server/monitor/src/main/java/org/apache/accumulo/monitor/Monitor.java e6617d0 
>   server/monitor/src/main/java/org/apache/accumulo/monitor/servlets/BasicServlet.java
86a84b9 
>   server/monitor/src/main/java/org/apache/accumulo/monitor/servlets/ReplicationServlet.java
PRE-CREATION 
> 
> Diff: https://reviews.apache.org/r/22003/diff/
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> Josh Elser
> 
>


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