[Emu] openTAM: NewAdaptiveFlowStatsCollector Implementation

  - NewAdaptiveFlowStatsCollector.java
   .Bug fix to initialize callCountCalAndShortFlowsTask value
   .Added flowMissingXid variable to identify individual StatsRequest or match all StatsRequest message or not
  - DefaultTypedFlowEntry.java, TypedStoredFlowEntry.java
   .Added javadoc for class
  - OpenFlowRuleProvider.java
   .Line 2: 2014 -> 2015
   .Added adaptiveFlowSampling boolean property with default
   .Added call providerService.pushFlowMetricsWithoutFlowMissing in case of  individual StatsRequest
  - FlowRuleProviderService.java
   .Added pushFlowMetricsWithoutFlowMissing() function
  - FlowRuleManager.java
   .Added pushFlowMetricsWithoutFlowMissing() implementation
  - OpenFlowControllerImpl.java
   .Bug fix to unchange the StatsRequest Xid value in case of StatsReply Flow message type

Change-Id: Id4dc4a164da654af7b6dfb090af7336e748ef118
diff --git a/openflow/ctl/src/main/java/org/onosproject/openflow/controller/impl/OpenFlowControllerImpl.java b/openflow/ctl/src/main/java/org/onosproject/openflow/controller/impl/OpenFlowControllerImpl.java
index 99ca6b2..a25b7a8 100644
--- a/openflow/ctl/src/main/java/org/onosproject/openflow/controller/impl/OpenFlowControllerImpl.java
+++ b/openflow/ctl/src/main/java/org/onosproject/openflow/controller/impl/OpenFlowControllerImpl.java
@@ -273,6 +273,7 @@
                         OFFlowStatsReply.Builder rep =
                                 OFFactories.getFactory(msg.getVersion()).buildFlowStatsReply();
                         rep.setEntries(Lists.newLinkedList(flowStats));
+                        rep.setXid(reply.getXid());
                         executorMsgs.submit(new OFMessageHandler(dpid, rep.build()));
                     }
                     break;