spring-projects/spring-hadoop — pull request #169 by jvalkeal (2014-11-09 15:59:09+00:00)
Title: SHDP-418 Enhance container groups allocation model

- Replace AnyGridProjection, HostsGridProjection and
RacksGridProjection with DefaultGridProjection which
knows how to mix/match wildcard, hosts and racks.
- Introduce concept of AllocationGroups which is a foundation
of allowing do automatically use different priorities
for allocation order to support different mixing of anys,
hosts and racks. This also changes requested allocation
priority to be a base priority and further real priorities
are calculated automatically.
- Change yml config model so that projection and its data is
much easier to use and extend in a use case from Spring XD.