add logs

Signed-off-by: Abhishek Kumar <abhishek.mrt22@gmail.com>

Author: shwstppr

engine/schema/src/main/java/com/cloud/storage/dao/GuestOSHypervisorDaoImpl.java

@@ -22,6 +22,7 @@
 
 import org.apache.cloudstack.utils.CloudStackVersion;
 import org.apache.commons.collections.CollectionUtils;
+import org.apache.log4j.Logger;
 import org.springframework.stereotype.Component;
 
 import com.cloud.hypervisor.Hypervisor;
@@ -34,6 +35,7 @@
 
 @Component
 public class GuestOSHypervisorDaoImpl extends GenericDaoBase<GuestOSHypervisorVO, Long> implements GuestOSHypervisorDao {
+    private static final Logger s_logger = Logger.getLogger(GuestOSHypervisorDaoImpl.class);
 
     protected final SearchBuilder<GuestOSHypervisorVO> guestOsSearch;
     protected final SearchBuilder<GuestOSHypervisorVO> mappingSearch;
@@ -111,6 +113,8 @@ public GuestOSHypervisorVO findByOsIdAndHypervisor(long guestOsId, String hyperv
         if (parentVersion == null) {
             return null;
         }
+        s_logger.info(String.format("Mapping for guest OS ID: %d for hypervisor: %s with version: %s can not be found. " +
+                "Trying to find one for the parent version: %s", guestOsId, hypervisorType, hypervisorVersion, parentVersion));
         return findByOsIdAndHypervisorInternal(guestOsId, hypervisorType, parentVersion);
     }
 
@@ -161,6 +165,8 @@ public GuestOSHypervisorVO findByOsNameAndHypervisor(String guestOsName, String
         if (parentVersion == null) {
             return null;
         }
+        s_logger.info(String.format("Mapping for guest OS: %s for hypervisor: %s with version: %s can not be found. " +
+                "Trying to find one for the parent version: %s", guestOsName, hypervisorType, hypervisorVersion, parentVersion));
         return findByOsNameAndHypervisorInternal(guestOsName, hypervisorType, parentVersion);
     }