Murali Reddy e7a554fc6a Merging events framework branch into master. This commit will bring ...

following changes

   - introduced notion of event bus with publish, subscribe, unsubscribe
     semantics

   - a plug-in can implement the EventBus abstraction to provide event
     bug to CloudStack

   - A rabbitMQ based plug-in that can interact with AMQP servers to
     provide message broker based event-bug

   - stream lines, action events, usage events, alerts publishing in to
     convineance classed which are also used to publish corresponding
     event on to event bus

   - introduced notion of state change event. On a state change, in the
     state machine corrsponding to the resource, a state change event is
     published on the event bug

   - associated a state machined with Snapshot and Network objects

   - Virtual Machine, Volume, Snaphost, Network object state changes wil
     result in a state change event

2013-02-01 01:37:24 +05:30

..

rabbitmq

Merging events framework branch into master. This commit will bring

2013-02-01 01:37:24 +05:30