[
https://issues.apache.org/jira/browse/STORM-2791?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Daniel Dara updated STORM-2791:
-------------------------------
Description:
The class
[FixedTupleSpout|https://github.com/apache/storm/blob/64e29f365c9b5d3e15b33f33ab64e200345333e4/storm-client/src/jvm/org/apache/storm/testing/FixedTupleSpout.java#L34]
is useful for emitting test tuples in end-to-end topology tests. Unfortunately
it appears to only support a single output field, which greatly limits what
topologies you can test with.
In PR 2391, I propose adding a new constructor to FixedTupleSpout to allow
specifying more than one field.
I also decided to deprecate the existing constructor which accepts a String due
to the fact that it will cause an ambiguity compilation error if the calling
code is passing in null, so it should probably be entirely removed at some
point.
was:
The class
[FixedTupleSpout|https://github.com/apache/storm/blob/64e29f365c9b5d3e15b33f33ab64e200345333e4/storm-client/src/jvm/org/apache/storm/testing/FixedTupleSpout.java#L34]
is useful for emitting test tuples in end-to-end topology tests. Unfortunately
it appears to only support a single output field, which greatly limits what
topologies you can test with.
In PR 2391, I propose adding a new constructor to FixedTupleSpout to allow
specifying more than one field.
I also decided to deprecate the existing constructor which accepts a String due
to the fact that it will cause an ambiguity compilation error if the calling
code is passing in `null`, so it should probably be entirely removed at some
point.
> Add support for multiple output fields to FixedTupleSpout
> ---------------------------------------------------------
>
> Key: STORM-2791
> URL: https://issues.apache.org/jira/browse/STORM-2791
> Project: Apache Storm
> Issue Type: Improvement
> Components: storm-core
> Reporter: Daniel Dara
> Priority: Minor
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> The class
> [FixedTupleSpout|https://github.com/apache/storm/blob/64e29f365c9b5d3e15b33f33ab64e200345333e4/storm-client/src/jvm/org/apache/storm/testing/FixedTupleSpout.java#L34]
> is useful for emitting test tuples in end-to-end topology tests.
> Unfortunately it appears to only support a single output field, which greatly
> limits what topologies you can test with.
> In PR 2391, I propose adding a new constructor to FixedTupleSpout to allow
> specifying more than one field.
> I also decided to deprecate the existing constructor which accepts a String
> due to the fact that it will cause an ambiguity compilation error if the
> calling code is passing in null, so it should probably be entirely removed at
> some point.
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