[3798] Changes after review:

 - {update,remove}Statistics moved from CfgMgr to SrvConfig,CfgSubnets4

1 files changed, 34 insertions, 1 deletions

diff --git a/src/lib/dhcpsrv/cfg_subnets4.cc b/src/lib/dhcpsrv/cfg_subnets4.cc
index 3a27e4a6fe..5ea1a8b024 100644
--- a/src/lib/dhcpsrv/cfg_subnets4.cc
+++ b/src/lib/dhcpsrv/cfg_subnets4.cc
@@ -17,6 +17,7 @@
 #include <dhcpsrv/cfg_subnets4.h>
 #include <dhcpsrv/dhcpsrv_log.h>
 #include <dhcpsrv/subnet_id.h>
+#include <stats/stats_mgr.h>
 
 using namespace isc::asiolink;
 
@@ -109,7 +110,7 @@ CfgSubnets4::selectSubnet(const SubnetSelector& selector) const {
     }
 
     // We have identified an address in the client's packet that can be
-    // used for subnet selection. Match this packet with the subnets. 
+    // used for subnet selection. Match this packet with the subnets.
     return (selectSubnet(address, selector.client_classes_));
 }
 
@@ -145,8 +146,40 @@ CfgSubnets4::isDuplicate(const Subnet4& subnet) const {
     return (false);
 }
 
+void
+CfgSubnets4::removeStatistics() {
+    using namespace isc::stats;
+
+    // For each v4 subnet currently configured, remove the statistic.
+    /// @todo: May move this to CfgSubnets4 class if there will be more
+    /// statistics here.
+    for (Subnet4Collection::const_iterator subnet4 = subnets_.begin();
+         subnet4 != subnets_.end(); ++subnet4) {
+
+        StatsMgr::instance().del(StatsMgr::generateName("subnet",
+                                                        (*subnet4)->getID(),
+                                                        "total-addresses"));
+
+        StatsMgr::instance().del(StatsMgr::generateName("subnet",
+                                                        (*subnet4)->getID(),
+                                                        "assigned-addresses"));
+    }
+}
 
+void
+CfgSubnets4::updateStatistics() {
+    using namespace isc::stats;
 
+    /// @todo: May move this to CfgSubnets4 class if there will be more
+    /// statistics here.
+    for (Subnet4Collection::const_iterator subnet = subnets_.begin();
+         subnet != subnets_.end(); ++subnet) {
+
+        StatsMgr::instance().setValue(
+            StatsMgr::generateName("subnet", (*subnet)->getID(), "total-addresses"),
+            static_cast<int64_t>((*subnet)->getPoolCapacity(Lease::TYPE_V4)));
+    }
+}
 
 } // end of namespace isc::dhcp
 } // end of namespace isc