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https://issues.apache.org/jira/browse/FLUME-935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13206672#comment-13206672
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[email protected] commented on FLUME-935:
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Ship it!
+1. Changes look good to me. Please attach the patch to the JIRA.
- Arvind
On 2012-02-06 23:09:15, Peter Newcomb wrote:
bq.
bq. -----------------------------------------------------------
bq. This is an automatically generated e-mail. To reply, visit:
bq. https://reviews.apache.org/r/3516/
bq. -----------------------------------------------------------
bq.
bq. (Updated 2012-02-06 23:09:15)
bq.
bq.
bq. Review request for Flume.
bq.
bq.
bq. Summary
bq. -------
bq.
bq. Implementation of FLUME-935 as new classes BasicChannelSemantics,
BasicTransactionSemantics, and ChannelUtils. It might be better to fold
BasicChannelSemantics into AbstractChannel and rename BasicTransactionSemantics
to AbstractTransaction, but doing that would require refactoring of existing
classes that extend AbstractChannel.
bq.
bq.
bq. This addresses bug FLUME-935.
bq. https://issues.apache.org/jira/browse/FLUME-935
bq.
bq.
bq. Diffs
bq. -----
bq.
bq.
/branches/flume-728/flume-ng-core/src/test/java/org/apache/flume/channel/AbstractBasicChannelSemanticsTest.java
PRE-CREATION
bq.
/branches/flume-728/flume-ng-core/src/main/java/org/apache/flume/channel/ChannelUtils.java
PRE-CREATION
bq.
/branches/flume-728/flume-ng-core/src/main/java/org/apache/flume/ChannelException.java
1241246
bq.
/branches/flume-728/flume-ng-core/src/main/java/org/apache/flume/channel/BasicChannelSemantics.java
PRE-CREATION
bq.
/branches/flume-728/flume-ng-core/src/main/java/org/apache/flume/channel/BasicTransactionSemantics.java
PRE-CREATION
bq.
/branches/flume-728/flume-ng-core/src/test/java/org/apache/flume/channel/TestBasicChannelSemantics.java
PRE-CREATION
bq.
/branches/flume-728/flume-ng-core/src/test/java/org/apache/flume/channel/TestChannelUtils.java
PRE-CREATION
bq.
bq. Diff: https://reviews.apache.org/r/3516/diff
bq.
bq.
bq. Testing
bq. -------
bq.
bq. I am using these in production code, and they have survived significant
integration testing there, including failure modes. Note also that these
classes are largely error handling and precondition testing code designed to
test the correctness of the code around them.
bq.
bq. A fairly comprehensive set of unit tests is included.
bq.
bq.
bq. Thanks,
bq.
bq. Peter
bq.
bq.
> Create abstract implementations of basic channel/transaction semantics
> ----------------------------------------------------------------------
>
> Key: FLUME-935
> URL: https://issues.apache.org/jira/browse/FLUME-935
> Project: Flume
> Issue Type: Improvement
> Components: Channel
> Affects Versions: v1.0.0
> Reporter: Peter Newcomb
> Assignee: Peter Newcomb
> Priority: Minor
> Fix For: v1.1.0
>
>
> Correctly executing or checking the state transitions for channels and
> transactions is nontrivial. It would be helpful to have a correct
> implementation of each that can be used either directly or as a reference
> when creating new channels or clients of channels.
> Specifically, on the client side it would be nice to package the try {
> begin() ... commit() } catch { rollback() } finally { close() } code, with
> all the appropriate exception propagation and logging code, so that it need
> not be repeated constantly.
> On the channel side, it'd be nice to have a packaged implementation of the
> implied ThreadLocal semantics of the Transaction class, along with
> Preconditions checking to make sure that clients follow the try { begin() ...
> commit() } catch { rollback() } finally { close() } pattern.
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