Remove usage of XStream string serialization too?
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Key: MAHOUT-664
URL: https://issues.apache.org/jira/browse/MAHOUT-664
Project: Mahout
Issue Type: Improvement
Affects Versions: 0.4, 0.5
Reporter: Sean Owen
Priority: Minor
Fix For: 1.0
In the spirit of MAHOUT-510 and continuing to standardize approaches without
going too nuts -- I notice that there is only one use of XStream left in the
code, in StringUtils, which is merely a wrapper for serializing/deserializing
an object to a String.
There are two key mahout-core usages:
- org.apache.mahout.ga.watchmaker. Here it seems to be used to
serialize/deserialize a candidate solution to a file on HDFS and fed into a
mapper. Surely it's more appropriate to do something with Writable here?
- org.apache.mahout.df.mapreduce. It's used to serialize/deserialize a
DefaultTreeBuilder. Does it need to be done? it seems like DefaultTreeBuilder
is parameterized entirely by its param "m" but I haven't looked hard.
All of the other usages are in mahout-examples/, which suggests they're of
secondary importance.
Some usages are serialization of longs and char[], which seems pointless.
Any thoughts? putting this on the map for 1.0.
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