Added msgpack codec

[Tatu Saloranta]

Ok, after fighting with lack of documentation and odd crashes with
msgpack, I managed to get codec to work.
So it might make sense to re-run test suite to get results for couple
of more backends (at least gson/streaming and msgpack are new).

-+ Tatu +-

[David Yu]

Got exceptions trying to run.

Exception in thread "main" java.lang.NoClassDefFoundError: javassist/ClassPath

at org.msgpack.template.builder.BuilderSelectorRegistry.initForJava(BuilderSelectorRegistry.java:58)

at org.msgpack.template.builder.BuilderSelectorRegistry.<clinit>(BuilderSelectorRegistry.java:38)

at org.msgpack.template.TemplateRegistry.<clinit>(TemplateRegistry.java:38)

at org.msgpack.MessagePack.register(MessagePack.java:149)

at serializers.MsgPack.register(MsgPack.java:22)

at serializers.BenchmarkRunner.main(BenchmarkRunner.java:263)

Caused by: java.lang.ClassNotFoundException: javassist.ClassPath

at java.net.URLClassLoader$1.run(URLClassLoader.java:202)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:190)

at java.lang.ClassLoader.loadClass(ClassLoader.java:307)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)

at java.lang.ClassLoader.loadClass(ClassLoader.java:248)

... 6 more

Cheers 

-+ Tatu +-

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- David Yu

[Blair Zajac]

On Jun 10, 2011, at 9:49 PM, David Yu wrote:

On Wed, Jun 8, 2011 at 8:03 AM, Tatu Saloranta <tsalo...@gmail.com> wrote:

Ok, after fighting with lack of documentation and odd crashes with
msgpack, I managed to get codec to work.
So it might make sense to re-run test suite to get results for couple
of more backends (at least gson/streaming and msgpack are new).

Got exceptions trying to run.

Does anyone have any initial numbers, at least msgpack relative to some of the other popular ones?

Blair

[Tatu Saloranta]

I need to check if I include other libs locally first, to see why
David had problems.

Numbers I saw indicated msgpack was bit slower than protobuf, about
same as Thrift (maybe slightly faster).
This is better than last I checked 4 months ago, when msgpack was
actually slower than other binary codecs.

There are faster options like Kryo, and various codecs Protostuff
provides, so speed does not seem to be a strong reason to use msgpack;
although like many codecs (json, avro, fastest xml codecs also
qualify) it is certainly fast enough for most use cases.

-+ Tatu +-

[Tatu Saloranta]

I added javassist library so it should now be possible to run msgpack
test case too.

-+ Tatu +-