spring-projects/spring-xd — pull request #482 by garyrussell (2013-12-20 00:25:29+00:00)
Title: XD-1146 Add Async Request/Response to MessageBus

Second PoC "PR" for Batch Partitioning __Review Only__ - replaces #463

Still TODOs (below). __Needs my s-b-a 2.0 branch in mavenLocal()__ (https://github.com/garyrussell/spring-batch-admin/tree/s-b-i-4)

````
INFO: Job Name Job Definition Status
------------------- ----------------- --------
myJobWithPartitions jobWithPartitions deployed

18:56:01,927 INFO http-nio-9292-exec-1 support.SimpleJobLauncher:132 - Job: [FlowJob: [name=myJobWithPartitions.job]] launched with the following parameters: [{random=0.9613607402418919}]
18:56:01,986 INFO http-nio-9292-exec-1 job.SimpleStepHandler:135 - Executing step: [step1-master]
baz
bar
18:56:02,224 INFO http-nio-9292-exec-1 support.SimpleJobLauncher:135 - Job: [FlowJob: [name=myJobWithPartitions.job]] completed with the following parameters: [{random=0.9613607402418919}] and the following status: [COMPLETED]
````

Add async request/response support to the MessageBus.

Initially to support batch partitioning over supported
transports, but generally applicable.

Initial prototype.

No Redis implementation at this time.

Simple partitioned job creates two partitions.

TODO: Redis bus
TODO: More tests
TODO: Factor out "common" code from the job.xml so users can import and just provide the partitioner and tasklet
TODO: Polish