Work done: * Minor changes in Infrastructure and ElasticInfrastructureUtils to accurately determine the current size (i.e.: number of physical instances) of an operator identifier in the logical query. * Minor fix for scale-in support in adaptor class for SEEP.
Work done: * Added support for scale-in of operators. * Extended RoutingStrategyI interface to support collapse of replicas (only implemented for concrete stateless routing strategy). * Created new control tuple SCALE_IN to notify upstream operators that a downstream operator instance has been stopped. * Extended CoreRE and CoreProcessingLogic to support processing of scale-in control messages. * Implemented scale-in/unalert method on Infrastructure class to allow integration with the monitoring framework for SEEP.
More work on java2sdg
Merge branch 'master' of github.com:lsds/SEEP
Merging Martin pull request for stateless scale-in
Merge branch 'mrouaux-master'