Add protection in portmapping connection-map loop
[transportpce.git] / common / src / main / java / org / opendaylight / transportpce / common / mapping / PortMappingVersion121.java
index c9ec9779aac1e41b63a2904a9f2312572124f9ec..70e9e98d97ec0597cb71d3db8dec45af86b2a3f6 100644 (file)
@@ -8,42 +8,45 @@
 
 package org.opendaylight.transportpce.common.mapping;
 
-import com.google.common.util.concurrent.CheckedFuture;
+import com.google.common.util.concurrent.FluentFuture;
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Map.Entry;
 import java.util.Optional;
+import java.util.concurrent.ExecutionException;
 import java.util.stream.Collectors;
-
+import org.eclipse.jdt.annotation.NonNull;
 import org.eclipse.jdt.annotation.Nullable;
-import org.opendaylight.controller.md.sal.binding.api.DataBroker;
-import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
-import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
-import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
+import org.opendaylight.mdsal.binding.api.DataBroker;
+import org.opendaylight.mdsal.binding.api.WriteTransaction;
+import org.opendaylight.mdsal.common.api.CommitInfo;
+import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
 import org.opendaylight.transportpce.common.StringConstants;
 import org.opendaylight.transportpce.common.Timeouts;
 import org.opendaylight.transportpce.common.device.DeviceTransactionManager;
 import org.opendaylight.transportpce.common.openroadminterfaces.OpenRoadmInterfaceException;
 import org.opendaylight.transportpce.common.openroadminterfaces.OpenRoadmInterfaces;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev190702.Network;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev190702.NetworkBuilder;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev190702.network.Nodes;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev190702.network.NodesBuilder;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev190702.network.NodesKey;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev190702.network.nodes.CpToDegree;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev190702.network.nodes.CpToDegreeBuilder;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev190702.network.nodes.CpToDegreeKey;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev190702.network.nodes.Mapping;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev190702.network.nodes.MappingBuilder;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev190702.network.nodes.MappingKey;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev190702.network.nodes.NodeInfo;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev190702.network.nodes.NodeInfo.OpenroadmVersion;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev190702.network.nodes.NodeInfoBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev201012.Network;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev201012.NetworkBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev201012.network.Nodes;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev201012.network.NodesBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev201012.network.NodesKey;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev201012.network.nodes.CpToDegree;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev201012.network.nodes.CpToDegreeBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev201012.network.nodes.CpToDegreeKey;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev201012.network.nodes.Mapping;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev201012.network.nodes.MappingBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev201012.network.nodes.MappingKey;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev201012.network.nodes.NodeInfo;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev201012.network.nodes.NodeInfo.OpenroadmVersion;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev201012.network.nodes.NodeInfoBuilder;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.common.types.rev161014.Direction;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.common.types.rev181019.NodeTypes;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.CircuitPack;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.Port;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.circuit.pack.Ports;
@@ -61,21 +64,26 @@ import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.org.open
 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.org.openroadm.device.container.org.openroadm.device.Protocols;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.org.openroadm.device.container.org.openroadm.device.SharedRiskGroup;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.org.openroadm.device.container.org.openroadm.device.SharedRiskGroupKey;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.org.openroadm.device.container.org.openroadm.device.connection.map.Destination;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.port.Interfaces;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.device.types.rev191129.NodeTypes;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.interfaces.rev161014.InterfaceType;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.interfaces.rev161014.OpenROADMOpticalMultiplex;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.interfaces.rev161014.OpticalTransport;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.lldp.rev161014.Protocols1;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.lldp.rev161014.lldp.container.Lldp;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.lldp.rev161014.lldp.container.lldp.PortConfig;
-
 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.opendaylight.yangtools.yang.common.Uint16;
+import org.opendaylight.yangtools.yang.common.Uint32;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+// FIXME: many common pieces of code between PortMapping Versions 121 and 221 and 710
+// some mutualization would be helpful
 public class PortMappingVersion121 {
 
-    private static final Logger LOG = LoggerFactory.getLogger(PortMappingImpl.class);
+    private static final Logger LOG = LoggerFactory.getLogger(PortMappingVersion121.class);
 
     private final DataBroker dataBroker;
     private final DeviceTransactionManager deviceTransactionManager;
@@ -94,20 +102,16 @@ public class PortMappingVersion121 {
         InstanceIdentifier<Info> infoIID = InstanceIdentifier.create(OrgOpenroadmDevice.class).child(Info.class);
         Optional<Info> deviceInfoOptional = this.deviceTransactionManager.getDataFromDevice(nodeId, LogicalDatastoreType
             .OPERATIONAL, infoIID, Timeouts.DEVICE_READ_TIMEOUT, Timeouts.DEVICE_READ_TIMEOUT_UNIT);
-        Info deviceInfo;
-        NodeInfo nodeInfo;
-        if (deviceInfoOptional.isPresent()) {
-            deviceInfo = deviceInfoOptional.get();
-            nodeInfo = createNodeInfo(deviceInfo);
-            if (nodeInfo == null) {
-                return false;
-            } else {
-                postPortMapping(nodeId, nodeInfo, null, null);
-            }
-        } else {
+        if (!deviceInfoOptional.isPresent()) {
             LOG.warn("Device info subtree is absent for {}", nodeId);
             return false;
         }
+        Info deviceInfo = deviceInfoOptional.get();
+        NodeInfo nodeInfo = createNodeInfo(deviceInfo);
+        if (nodeInfo == null) {
+            return false;
+        }
+        postPortMapping(nodeId, nodeInfo, null, null);
 
         switch (deviceInfo.getNodeType()) {
 
@@ -141,37 +145,35 @@ public class PortMappingVersion121 {
     }
 
     public boolean updateMapping(String nodeId, Mapping oldMapping) {
-        LOG.info("Updating Mapping Data {} for node {}", oldMapping, nodeId);
         InstanceIdentifier<Ports> portIId = InstanceIdentifier.create(OrgOpenroadmDevice.class)
             .child(CircuitPacks.class, new CircuitPacksKey(oldMapping.getSupportingCircuitPackName()))
             .child(Ports.class, new PortsKey(oldMapping.getSupportingPort()));
-        if ((oldMapping != null) && (nodeId != null)) {
-            try {
-                Optional<Ports> portObject = deviceTransactionManager.getDataFromDevice(nodeId,
-                    LogicalDatastoreType.OPERATIONAL, portIId, Timeouts.DEVICE_READ_TIMEOUT,
-                    Timeouts.DEVICE_READ_TIMEOUT_UNIT);
-                if (portObject.isPresent()) {
-                    Ports port = portObject.get();
-                    Mapping newMapping = createMappingObject(nodeId, port, oldMapping.getSupportingCircuitPackName(),
-                        oldMapping.getLogicalConnectionPoint());
-
-                    final WriteTransaction writeTransaction = this.dataBroker.newWriteOnlyTransaction();
-                    InstanceIdentifier<Mapping> mapIID = InstanceIdentifier.create(Network.class)
-                        .child(Nodes.class, new NodesKey(nodeId))
-                        .child(Mapping.class, new MappingKey(oldMapping.getLogicalConnectionPoint()));
-                    writeTransaction.merge(LogicalDatastoreType.CONFIGURATION, mapIID, newMapping);
-                    CheckedFuture<Void, TransactionCommitFailedException> submit = writeTransaction.submit();
-                    submit.checkedGet();
-                    return true;
-                }
-                return false;
-            } catch (TransactionCommitFailedException e) {
-                LOG.error("Transaction Commit Error updating Mapping {} for node {}",
-                    oldMapping.getLogicalConnectionPoint(), nodeId, e);
+        if ((oldMapping == null) || (nodeId == null)) {
+            LOG.error("Impossible to update mapping");
+            return false;
+        }
+        try {
+            Optional<Ports> portObject = deviceTransactionManager.getDataFromDevice(nodeId,
+                LogicalDatastoreType.OPERATIONAL, portIId, Timeouts.DEVICE_READ_TIMEOUT,
+                Timeouts.DEVICE_READ_TIMEOUT_UNIT);
+            if (!portObject.isPresent()) {
                 return false;
             }
-        } else {
-            LOG.error("Impossible to update mapping");
+            Ports port = portObject.get();
+            Mapping newMapping = createMappingObject(nodeId, port, oldMapping.getSupportingCircuitPackName(),
+                oldMapping.getLogicalConnectionPoint());
+            LOG.info("Updating old mapping Data {} for {} of {} by new mapping data {}",
+                oldMapping, oldMapping.getLogicalConnectionPoint(), nodeId, newMapping);
+            final WriteTransaction writeTransaction = this.dataBroker.newWriteOnlyTransaction();
+            InstanceIdentifier<Mapping> mapIID = InstanceIdentifier.create(Network.class)
+                .child(Nodes.class, new NodesKey(nodeId))
+                .child(Mapping.class, new MappingKey(oldMapping.getLogicalConnectionPoint()));
+            writeTransaction.merge(LogicalDatastoreType.CONFIGURATION, mapIID, newMapping);
+            FluentFuture<? extends @NonNull CommitInfo> commit = writeTransaction.commit();
+            commit.get();
+            return true;
+        } catch (InterruptedException | ExecutionException e) {
+            LOG.error("Error updating Mapping {} for node {}", oldMapping.getLogicalConnectionPoint(), nodeId, e);
             return false;
         }
     }
@@ -182,19 +184,22 @@ public class PortMappingVersion121 {
         Optional<OrgOpenroadmDevice> deviceObject = deviceTransactionManager.getDataFromDevice(nodeId,
             LogicalDatastoreType.OPERATIONAL, deviceIID,
             Timeouts.DEVICE_READ_TIMEOUT, Timeouts.DEVICE_READ_TIMEOUT_UNIT);
-
+        if (!deviceObject.isPresent()) {
+            LOG.error("Impossible to get device configuration for node {}", nodeId);
+            return false;
+        }
+        OrgOpenroadmDevice device = deviceObject.get();
+        if (device.getCircuitPacks() == null) {
+            LOG.warn("Circuit Packs are not present for {}", nodeId);
+            return false;
+        }
         // Variable to keep track of number of line ports
         int line = 1;
         // Variable to keep track of number of client ports
         int client = 1;
-        if (!deviceObject.isPresent() || deviceObject.get().getCircuitPacks() == null) {
-            LOG.warn("Circuit Packs are not present for {}", nodeId);
-            return false; // TODO return false or continue?
-        }
         Map<String, String> lcpMap = new HashMap<>();
         Map<String, Mapping> mappingMap = new HashMap<>();
-
-        List<CircuitPacks> circuitPackList = deviceObject.get().getCircuitPacks();
+        List<CircuitPacks> circuitPackList = new ArrayList<>(device.nonnullCircuitPacks().values());
         circuitPackList.sort(Comparator.comparing(CircuitPack::getCircuitPackName));
 
         for (CircuitPacks cp : circuitPackList) {
@@ -203,7 +208,9 @@ public class PortMappingVersion121 {
                 LOG.warn("Ports were not found for circuit pack: {}", circuitPackName);
                 continue;
             }
-            List<Ports> portList = cp.getPorts();
+
+            // com.google.common.collect.ImmutableList implementation of List
+            List<Ports> portList = new ArrayList<>(cp.nonnullPorts().values());
             portList.sort(Comparator.comparing(Ports::getPortName));
             for (Ports port : portList) {
                 if (port.getPortQual() == null) {
@@ -229,7 +236,8 @@ public class PortMappingVersion121 {
                     Optional<CircuitPacks> cpOpt = circuitPackList.stream().filter(cP -> cP.getCircuitPackName()
                         .equals(port.getPartnerPort().getCircuitPackName())).findFirst();
                     if (cpOpt.isPresent()) {
-                        Optional<Ports> poOpt = cpOpt.get().getPorts().stream().filter(p -> p.getPortName().equals(port
+                        Optional<Ports> poOpt = cpOpt.get().nonnullPorts()
+                                .values().stream().filter(p -> p.getPortName().equals(port
                             .getPartnerPort().getPortName().toString())).findFirst();
                         if (poOpt.isPresent()) {
                             Ports port2 = poOpt.get();
@@ -283,27 +291,30 @@ public class PortMappingVersion121 {
                 }
             }
         }
-        List<ConnectionMap> connectionMap = deviceObject.get().getConnectionMap();
-        String slcp = null;
-        String dlcp = null;
+
+        Collection<ConnectionMap> connectionMap = deviceObject.get().nonnullConnectionMap().values();
         for (ConnectionMap cm : connectionMap) {
+            String slcp = null;
+            String dlcp = null;
             String skey = cm.getSource().getCircuitPackName() + "+" + cm.getSource().getPortName();
             if (lcpMap.containsKey(skey)) {
                 slcp = lcpMap.get(skey);
             }
-            String dkey = cm.getDestination().get(0).getCircuitPackName() + "+"
-                + cm.getDestination().get(0).getPortName();
+            Destination destination0 = cm.nonnullDestination().values().iterator().next();
+            String dkey = destination0.getCircuitPackName() + "+" + destination0.getPortName();
             if (lcpMap.containsKey(dkey)) {
                 dlcp = lcpMap.get(dkey);
             }
-            if (slcp != null) {
-                Mapping mapping = mappingMap.get(slcp);
-                mappingMap.remove(slcp);
-                portMapList.add(createXpdrMappingObject(nodeId, null, null, null, null, mapping, dlcp));
-            } else {
-                LOG.error("Error in connection-map analysis");
+            if (slcp == null) {
+                LOG.error("Error in connection-map analysis for source {} and destination (circuitpack+port) {}",
+                    skey, dkey);
+                continue;
             }
+            Mapping mapping = mappingMap.get(slcp);
+            mappingMap.remove(slcp);
+            portMapList.add(createXpdrMappingObject(nodeId, null, null, null, null, mapping, dlcp));
         }
+
         if (!mappingMap.isEmpty()) {
             for (Mapping m : mappingMap.values()) {
                 portMapList.add(m);
@@ -320,7 +331,7 @@ public class PortMappingVersion121 {
         // Get value for max Srg from info subtree, required for iteration
         // if not present assume to be 20 (temporary)
         if (ordmInfo.getMaxSrgs() != null) {
-            maxSrg = ordmInfo.getMaxSrgs();
+            maxSrg = ordmInfo.getMaxSrgs().toJava();
         } else {
             maxSrg = 20;
         }
@@ -329,28 +340,29 @@ public class PortMappingVersion121 {
                 = new ArrayList<>();
             LOG.info("Getting Circuitpacks for Srg Number {}", srgCounter);
             InstanceIdentifier<SharedRiskGroup> srgIID = InstanceIdentifier.create(OrgOpenroadmDevice.class)
-                .child(SharedRiskGroup.class, new SharedRiskGroupKey(srgCounter));
+                .child(SharedRiskGroup.class, new SharedRiskGroupKey(Uint16.valueOf(srgCounter)));
             Optional<SharedRiskGroup> ordmSrgObject = this.deviceTransactionManager.getDataFromDevice(deviceId,
                 LogicalDatastoreType.OPERATIONAL, srgIID,
                 Timeouts.DEVICE_READ_TIMEOUT, Timeouts.DEVICE_READ_TIMEOUT_UNIT);
             if (ordmSrgObject.isPresent()) {
-                srgCps.addAll(ordmSrgObject.get().getCircuitPacks());
-                cpPerSrg.put(ordmSrgObject.get().getSrgNumber(), srgCps);
+                srgCps.addAll(ordmSrgObject.get().nonnullCircuitPacks().values());
+                cpPerSrg.put(ordmSrgObject.get().getSrgNumber().toJava(), srgCps);
             }
         }
         LOG.info("Device {} has {} Srg", deviceId, cpPerSrg.size());
         return cpPerSrg;
     }
 
-    @SuppressWarnings("checkstyle:linelength")  //last LOG info message in this method is too long
+    //last LOG info message in this method is too long
+    @SuppressWarnings("checkstyle:linelength")
     private boolean createPpPortMapping(String nodeId, Info deviceInfo, List<Mapping> portMapList) {
         // Creating mapping data for SRG's PP
         HashMap<Integer, List<org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.srg.CircuitPacks>> srgCps
             = getSrgCps(nodeId, deviceInfo);
 
-        for (Integer k : srgCps.keySet()) {
+        for (Entry<Integer, List<org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.srg.CircuitPacks>> srgCpEntry : srgCps.entrySet()) {
             List<org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.srg.CircuitPacks> cpList =
-                srgCps.get(k);
+                srgCps.get(srgCpEntry.getKey());
             List<String> keys = new ArrayList<>();
             for (org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.srg.CircuitPacks cp : cpList) {
                 String circuitPackName = cp.getCircuitPackName();
@@ -364,8 +376,9 @@ public class PortMappingVersion121 {
                     LOG.warn("{} : Circuit pack {} not found or without ports.", nodeId, circuitPackName);
                     continue;
                 }
+                // com.google.common.collect.ImmutableList implementation of List
                 @Nullable
-                List<Ports> portList = circuitPackObject.get().getPorts();
+                List<Ports> portList = new ArrayList<>(circuitPackObject.get().nonnullPorts().values());
                 Collections.sort(portList, new SortPort121ByName());
                 int portIndex = 1;
                 for (Ports port : portList) {
@@ -375,7 +388,7 @@ public class PortMappingVersion121 {
                     } else if (Port.PortQual.RoadmExternal.getIntValue() == port.getPortQual().getIntValue()
                         && Direction.Bidirectional.getIntValue() == port.getPortDirection().getIntValue()
                         && !keys.contains(currentKey)) {
-                        String logicalConnectionPoint = createLogicalConnectionPort(port, k, portIndex);
+                        String logicalConnectionPoint = createLogicalConnectionPort(port, srgCpEntry.getKey(), portIndex);
                         LOG.info("{} : Logical Connection Point for {} {} is {}", nodeId, circuitPackName,
                             port.getPortName(), logicalConnectionPoint);
                         portMapList.add(createMappingObject(nodeId, port, circuitPackName, logicalConnectionPoint));
@@ -386,7 +399,8 @@ public class PortMappingVersion121 {
                         || Direction.Tx.getIntValue() == port.getPortDirection().getIntValue())
                         && !keys.contains(currentKey)
                         && port.getPartnerPort() != null) {
-                        String logicalConnectionPoint1 = createLogicalConnectionPort(port, k, portIndex);
+                        String logicalConnectionPoint1 = createLogicalConnectionPort(port, srgCpEntry.getKey(),
+                            portIndex);
                         LOG.info("{} : Logical Connection Point for {} {} is {}", nodeId, circuitPackName,
                             port.getPortName(), logicalConnectionPoint1);
                         InstanceIdentifier<Ports> port2ID = InstanceIdentifier.create(OrgOpenroadmDevice.class)
@@ -410,7 +424,8 @@ public class PortMappingVersion121 {
                                 && port2.getPartnerPort() != null
                                 && port2.getPartnerPort().getCircuitPackName().equals(circuitPackName)
                                 && port2.getPartnerPort().getPortName().toString().equals(port.getPortName()))) {
-                                String logicalConnectionPoint2 = createLogicalConnectionPort(port2, k, portIndex);
+                                String logicalConnectionPoint2 = createLogicalConnectionPort(port2, srgCpEntry.getKey(),
+                                    portIndex);
                                 LOG.info("{} : Logical Connection Point for {} {} is {}", nodeId, circuitPackName,
                                     port2.getPortName(), logicalConnectionPoint2);
                                 portMapList.add(createMappingObject(nodeId, port, circuitPackName,
@@ -466,7 +481,7 @@ public class PortMappingVersion121 {
         // Get value for max degree from info subtree, required for iteration
         // if not present assume to be 20 (temporary)
         if (ordmInfo.getMaxDegrees() != null) {
-            maxDegree = ordmInfo.getMaxDegrees();
+            maxDegree = ordmInfo.getMaxDegrees().toJava();
         } else {
             maxDegree = 20;
         }
@@ -474,7 +489,7 @@ public class PortMappingVersion121 {
         for (int degreeCounter = 1; degreeCounter <= maxDegree; degreeCounter++) {
             LOG.info("Getting Connection ports for Degree Number {}", degreeCounter);
             InstanceIdentifier<Degree> deviceIID = InstanceIdentifier.create(OrgOpenroadmDevice.class)
-                .child(Degree.class, new DegreeKey(degreeCounter));
+                .child(Degree.class, new DegreeKey(Uint16.valueOf(degreeCounter)));
             Optional<Degree> ordmDegreeObject = this.deviceTransactionManager.getDataFromDevice(deviceId,
                 LogicalDatastoreType.OPERATIONAL, deviceIID,
                 Timeouts.DEVICE_READ_TIMEOUT, Timeouts.DEVICE_READ_TIMEOUT_UNIT);
@@ -482,7 +497,7 @@ public class PortMappingVersion121 {
                 degrees.add(ordmDegreeObject.get());
             }
         }
-        LOG.info("Device {} has {} degree", degrees.size());
+        LOG.info("Device {} has {} degree", deviceId, degrees.size());
         return degrees;
     }
 
@@ -491,19 +506,20 @@ public class PortMappingVersion121 {
         Integer maxDegree;
 
         if (ordmInfo.getMaxDegrees() != null) {
-            maxDegree = ordmInfo.getMaxDegrees();
+            maxDegree = ordmInfo.getMaxDegrees().toJava();
         } else {
             maxDegree = 20;
         }
         for (int degreeCounter = 1; degreeCounter <= maxDegree; degreeCounter++) {
             LOG.info("Getting Connection ports for Degree Number {}", degreeCounter);
             InstanceIdentifier<Degree> deviceIID = InstanceIdentifier.create(OrgOpenroadmDevice.class)
-                .child(Degree.class, new DegreeKey(degreeCounter));
+                .child(Degree.class, new DegreeKey(Uint16.valueOf(degreeCounter)));
             Optional<Degree> ordmDegreeObject = this.deviceTransactionManager.getDataFromDevice(deviceId,
                 LogicalDatastoreType.OPERATIONAL, deviceIID,
                 Timeouts.DEVICE_READ_TIMEOUT, Timeouts.DEVICE_READ_TIMEOUT_UNIT);
             if (ordmDegreeObject.isPresent()) {
-                conPortMap.put(degreeCounter, ordmDegreeObject.get().getConnectionPorts());
+                conPortMap.put(degreeCounter, new ArrayList<>(ordmDegreeObject.get()
+                        .nonnullConnectionPorts().values()));
             }
         }
         LOG.info("Device {} has {} degree", deviceId, conPortMap.size());
@@ -520,7 +536,7 @@ public class PortMappingVersion121 {
             Timeouts.DEVICE_READ_TIMEOUT_UNIT);
         if (protocolObject.isPresent() && protocolObject.get().augmentation(Protocols1.class).getLldp() != null) {
             Lldp lldp = protocolObject.get().augmentation(Protocols1.class).getLldp();
-            for (PortConfig portConfig : lldp.getPortConfig()) {
+            for (PortConfig portConfig : lldp.nonnullPortConfig().values()) {
                 if (portConfig.getAdminStatus().equals(PortConfig.AdminStatus.Txandrx)) {
                     InstanceIdentifier<Interface> interfaceIID = InstanceIdentifier.create(OrgOpenroadmDevice.class)
                         .child(Interface.class, new InterfaceKey(portConfig.getIfName()));
@@ -556,7 +572,7 @@ public class PortMappingVersion121 {
         for (Degree degree : degrees) {
             if (degree.getCircuitPacks() != null) {
                 LOG.info("Inside CP to degree list");
-                cpToDegreeList.addAll(degree.getCircuitPacks().stream()
+                cpToDegreeList.addAll(degree.nonnullCircuitPacks().values().stream()
                     .map(cp -> createCpToDegreeObject(cp.getCircuitPackName(),
                         degree.getDegreeNumber().toString(), nodeId, interfaceList))
                     .collect(Collectors.toList()));
@@ -567,34 +583,43 @@ public class PortMappingVersion121 {
 
     private boolean postPortMapping(String nodeId, NodeInfo nodeInfo, List<Mapping> portMapList,
         List<CpToDegree> cp2DegreeList) {
-        NodesBuilder nodesBldr = new NodesBuilder();
-        nodesBldr.withKey(new NodesKey(nodeId)).setNodeId(nodeId);
+        NodesBuilder nodesBldr = new NodesBuilder().withKey(new NodesKey(nodeId)).setNodeId(nodeId);
         if (nodeInfo != null) {
             nodesBldr.setNodeInfo(nodeInfo);
         }
         if (portMapList != null) {
-            nodesBldr.setMapping(portMapList);
+            Map<MappingKey, Mapping> mappingMap = new HashMap<>();
+            for (Mapping mapping: portMapList) {
+                if (mapping != null) {
+                    mappingMap.put(mapping.key(), mapping);
+                }
+            }
+            nodesBldr.setMapping(mappingMap);
         }
         if (cp2DegreeList != null) {
-            nodesBldr.setCpToDegree(cp2DegreeList);
+            Map<CpToDegreeKey, CpToDegree> cpToDegreeMap = new HashMap<>();
+            for (CpToDegree cp2Degree: cp2DegreeList) {
+                if (cp2Degree != null) {
+                    cpToDegreeMap.put(cp2Degree.key(), cp2Degree);
+                }
+            }
+            nodesBldr.setCpToDegree(cpToDegreeMap);
         }
 
-        List<Nodes> nodesList = new ArrayList<>();
-        nodesList.add(nodesBldr.build());
+        Map<NodesKey,Nodes> nodesList = new HashMap<>();
+        Nodes nodes = nodesBldr.build();
+        nodesList.put(nodes.key(),nodes);
 
-        NetworkBuilder nwBldr = new NetworkBuilder();
-        nwBldr.setNodes(nodesList);
+        Network network = new NetworkBuilder().setNodes(nodesList).build();
 
         final WriteTransaction writeTransaction = dataBroker.newWriteOnlyTransaction();
         InstanceIdentifier<Network> nodesIID = InstanceIdentifier.builder(Network.class).build();
-        Network network = nwBldr.build();
         writeTransaction.merge(LogicalDatastoreType.CONFIGURATION, nodesIID, network);
-        CheckedFuture<Void, TransactionCommitFailedException> submit = writeTransaction.submit();
+        FluentFuture<? extends @NonNull CommitInfo> commit = writeTransaction.commit();
         try {
-            submit.checkedGet();
+            commit.get();
             return true;
-
-        } catch (TransactionCommitFailedException e) {
+        } catch (InterruptedException | ExecutionException e) {
             LOG.warn("Failed to post {}", network, e);
             return false;
         }
@@ -607,15 +632,18 @@ public class PortMappingVersion121 {
             interfaceName = interfaceList.get(circuitPackName);
         }
         return new CpToDegreeBuilder().withKey(new CpToDegreeKey(circuitPackName)).setCircuitPackName(circuitPackName)
-            .setDegreeNumber(new Long(degreeNumber)).setInterfaceName(interfaceName).build();
+            .setDegreeNumber(Uint32.valueOf(degreeNumber)).setInterfaceName(interfaceName).build();
     }
 
     private Mapping createMappingObject(String nodeId, Ports port, String circuitPackName,
-        String logicalConnectionPoint) {
-        MappingBuilder mpBldr = new MappingBuilder();
-        mpBldr.withKey(new MappingKey(logicalConnectionPoint)).setLogicalConnectionPoint(logicalConnectionPoint)
-            .setSupportingCircuitPackName(circuitPackName).setSupportingPort(port.getPortName())
-            .setPortDirection(port.getPortDirection().getName());
+            String logicalConnectionPoint) {
+
+        MappingBuilder mpBldr = new MappingBuilder()
+                .withKey(new MappingKey(logicalConnectionPoint))
+                .setLogicalConnectionPoint(logicalConnectionPoint)
+                .setSupportingCircuitPackName(circuitPackName)
+                .setSupportingPort(port.getPortName())
+                .setPortDirection(port.getPortDirection().getName());
 
         // Get OMS and OTS interface provisioned on the TTP's
         if (logicalConnectionPoint.contains(StringConstants.TTP_TOKEN) && (port.getInterfaces() != null)) {
@@ -646,31 +674,35 @@ public class PortMappingVersion121 {
     }
 
     private Mapping createXpdrMappingObject(String nodeId, Ports port, String circuitPackName,
-        String logicalConnectionPoint, String partnerLcp, Mapping mapping, String assoLcp) {
-        MappingBuilder mpBldr;
+            String logicalConnectionPoint, String partnerLcp, Mapping mapping, String assoLcp) {
+
         if (mapping != null && assoLcp != null) {
             // update existing mapping
-            mpBldr = new MappingBuilder(mapping);
-            mpBldr.setAssociatedLcp(assoLcp);
-        } else {
-            // create a new mapping
-            mpBldr = new MappingBuilder();
-            mpBldr.withKey(new MappingKey(logicalConnectionPoint))
+            return new MappingBuilder(mapping).setConnectionMapLcp(assoLcp).build();
+        }
+
+        // create a new mapping
+        String nodeIdLcp = nodeId + "-" + logicalConnectionPoint;
+        MappingBuilder mpBldr = new MappingBuilder()
+                .withKey(new MappingKey(logicalConnectionPoint))
                 .setLogicalConnectionPoint(logicalConnectionPoint)
                 .setSupportingCircuitPackName(circuitPackName)
                 .setSupportingPort(port.getPortName())
-                .setPortDirection(port.getPortDirection().getName());
-            if (port.getPortQual() != null) {
-                mpBldr.setPortQual(port.getPortQual().getName());
-            }
-            if (partnerLcp != null) {
-                mpBldr.setPartnerLcp(partnerLcp);
-            }
+                .setPortDirection(port.getPortDirection().getName())
+                .setLcpHashVal(FnvUtils.fnv1_64(nodeIdLcp));
+        if (port.getPortQual() != null) {
+            mpBldr.setPortQual(port.getPortQual().getName());
+        }
+        if (partnerLcp != null) {
+            mpBldr.setPartnerLcp(partnerLcp);
         }
+
         return mpBldr.build();
     }
 
-    @SuppressWarnings("checkstyle:linelength")  // some LOG messages are too long
+    // some LOG messages are too long
+    @SuppressWarnings("checkstyle:linelength")
+    @SuppressFBWarnings("DM_CONVERT_CASE")
     private boolean createTtpPortMapping(String nodeId, Info deviceInfo, List<Mapping> portMapList) {
         // Creating mapping data for degree TTP's
         List<Degree> degrees = getDegrees(nodeId, deviceInfo);
@@ -680,17 +712,18 @@ public class PortMappingVersion121 {
         postPortMapping(nodeId, null, null, cpToDegreeList);
 
         Map<Integer, List<ConnectionPorts>> connectionPortMap = getPerDegreePorts(nodeId, deviceInfo);
-        for (Integer k : connectionPortMap.keySet()) {
-            switch (connectionPortMap.get(k).size()) {
+        for (Entry<Integer, List<ConnectionPorts>> cpMapEntry : connectionPortMap.entrySet()) {
+            switch (connectionPortMap.get(cpMapEntry.getKey()).size()) {
                 case 1:
                     // port is bidirectional
                     InstanceIdentifier<Ports> portID = InstanceIdentifier.create(OrgOpenroadmDevice.class)
-                        .child(CircuitPacks.class, new CircuitPacksKey(connectionPortMap.get(k).get(0)
+                        .child(CircuitPacks.class, new CircuitPacksKey(connectionPortMap.get(cpMapEntry.getKey()).get(0)
                             .getCircuitPackName()))
-                        .child(Ports.class, new PortsKey(connectionPortMap.get(k).get(0)
+                        .child(Ports.class, new PortsKey(connectionPortMap.get(cpMapEntry.getKey()).get(0)
                             .getPortName().toString()));
-                    LOG.info("Fetching connection-port {} at circuit pack {}", connectionPortMap.get(k).get(0)
-                        .getPortName().toString(), connectionPortMap.get(k).get(0).getCircuitPackName());
+                    LOG.info("Fetching connection-port {} at circuit pack {}", connectionPortMap
+                        .get(cpMapEntry.getKey()).get(0).getPortName().toString(), connectionPortMap
+                        .get(cpMapEntry.getKey()).get(0).getCircuitPackName());
                     Optional<Ports> portObject = this.deviceTransactionManager.getDataFromDevice(nodeId,
                         LogicalDatastoreType.OPERATIONAL, portID, Timeouts.DEVICE_READ_TIMEOUT,
                         Timeouts.DEVICE_READ_TIMEOUT_UNIT);
@@ -700,42 +733,46 @@ public class PortMappingVersion121 {
                             continue;
                         } else if (Port.PortQual.RoadmExternal.getIntValue() == port.getPortQual().getIntValue()
                             && Direction.Bidirectional.getIntValue() == port.getPortDirection().getIntValue()) {
-                            String logicalConnectionPoint = new StringBuilder("DEG").append(k).append("-TTP-TXRX")
-                                .toString();
+                            String logicalConnectionPoint = new StringBuilder("DEG").append(cpMapEntry.getKey())
+                                .append("-TTP-TXRX").toString();
                             LOG.info("{} : Logical Connection Point for {} {} is {}", nodeId,
-                                connectionPortMap.get(k).get(0).getCircuitPackName(), port.getPortName(),
-                                logicalConnectionPoint);
+                                connectionPortMap.get(cpMapEntry.getKey()).get(0).getCircuitPackName(),
+                                port.getPortName(), logicalConnectionPoint);
                             portMapList.add(createMappingObject(nodeId, port,
-                                connectionPortMap.get(k).get(0).getCircuitPackName(), logicalConnectionPoint));
+                                connectionPortMap.get(cpMapEntry.getKey()).get(0).getCircuitPackName(),
+                                logicalConnectionPoint));
                         } else {
                             LOG.error(
                                 "Impossible to create logical connection point for port {} of {} on node {} - Error in configuration with port-qual or port-direction",
-                                port.getPortName(), connectionPortMap.get(k).get(0).getCircuitPackName(), nodeId);
+                                port.getPortName(), connectionPortMap
+                                .get(cpMapEntry.getKey()).get(0).getCircuitPackName(), nodeId);
                         }
                     } else {
                         LOG.error("No port {} on circuit pack {} for node {}",
-                            connectionPortMap.get(k).get(0).getPortName().toString(),
-                            connectionPortMap.get(k).get(0).getCircuitPackName(), nodeId);
+                            connectionPortMap.get(cpMapEntry.getKey()).get(0).getPortName().toString(),
+                            connectionPortMap.get(cpMapEntry.getKey()).get(0).getCircuitPackName(), nodeId);
                         return false;
                     }
                     break;
                 case 2:
                     // ports are unidirectionals
-                    String cp1Name = connectionPortMap.get(k).get(0).getCircuitPackName();
-                    String cp2Name = connectionPortMap.get(k).get(1).getCircuitPackName();
+                    String cp1Name = connectionPortMap.get(cpMapEntry.getKey()).get(0).getCircuitPackName();
+                    String cp2Name = connectionPortMap.get(cpMapEntry.getKey()).get(1).getCircuitPackName();
                     InstanceIdentifier<Ports> port1ID = InstanceIdentifier.create(OrgOpenroadmDevice.class)
                         .child(CircuitPacks.class, new CircuitPacksKey(cp1Name))
-                        .child(Ports.class, new PortsKey(connectionPortMap.get(k).get(0).getPortName().toString()));
-                    LOG.info("Fetching connection-port {} at circuit pack {}", connectionPortMap.get(k).get(0)
-                        .getPortName().toString(), cp1Name);
+                        .child(Ports.class, new PortsKey(connectionPortMap.get(cpMapEntry.getKey()).get(0).getPortName()
+                            .toString()));
+                    LOG.info("Fetching connection-port {} at circuit pack {}", connectionPortMap
+                        .get(cpMapEntry.getKey()).get(0).getPortName().toString(), cp1Name);
                     Optional<Ports> port1Object = this.deviceTransactionManager.getDataFromDevice(nodeId,
                         LogicalDatastoreType.OPERATIONAL, port1ID, Timeouts.DEVICE_READ_TIMEOUT,
                         Timeouts.DEVICE_READ_TIMEOUT_UNIT);
                     InstanceIdentifier<Ports> port2ID = InstanceIdentifier.create(OrgOpenroadmDevice.class)
                         .child(CircuitPacks.class, new CircuitPacksKey(cp2Name))
-                        .child(Ports.class, new PortsKey(connectionPortMap.get(k).get(1).getPortName().toString()));
+                        .child(Ports.class, new PortsKey(connectionPortMap.get(cpMapEntry.getKey()).get(1).getPortName()
+                            .toString()));
                     LOG.info("Fetching connection-port {} at circuit pack {}",
-                        connectionPortMap.get(k).get(1).getPortName().toString(), cp2Name);
+                        connectionPortMap.get(cpMapEntry.getKey()).get(1).getPortName().toString(), cp2Name);
                     Optional<Ports> port2Object = this.deviceTransactionManager.getDataFromDevice(nodeId,
                         LogicalDatastoreType.OPERATIONAL, port2ID, Timeouts.DEVICE_READ_TIMEOUT,
                         Timeouts.DEVICE_READ_TIMEOUT_UNIT);
@@ -750,7 +787,7 @@ public class PortMappingVersion121 {
                                 && Direction.Tx.getIntValue() == port2.getPortDirection().getIntValue()
                                 && port1.getPartnerPort() != null && port2.getPartnerPort() != null
                                 && port1.getPartnerPort().getCircuitPackName().equals(cp2Name)
-                                && port1.getPartnerPort().getPortName().equals(port2.getPortName().toString())
+                                && port1.getPartnerPort().getPortName().equals(port2.getPortName())
                                 && port2.getPartnerPort().getCircuitPackName().equals(cp1Name)
                                 && port2.getPartnerPort().getPortName().equals(port1.getPortName()))
                                 ||
@@ -760,23 +797,23 @@ public class PortMappingVersion121 {
                                 && Direction.Tx.getIntValue() == port1.getPortDirection().getIntValue()
                                 && port1.getPartnerPort() != null && port2.getPartnerPort() != null
                                 && port1.getPartnerPort().getCircuitPackName().equals(cp2Name)
-                                && port1.getPartnerPort().getPortName().equals(port2.getPortName().toString())
+                                && port1.getPartnerPort().getPortName().equals(port2.getPortName())
                                 && port2.getPartnerPort().getCircuitPackName().equals(cp1Name)
-                                && port2.getPartnerPort().getPortName().equals(port1.getPortName().toString()))) {
-                            String logicalConnectionPoint1 = new StringBuilder("DEG").append(k).append("-TTP-")
-                                .append(port1.getPortDirection().getName().toUpperCase()).toString();
+                                && port2.getPartnerPort().getPortName().equals(port1.getPortName()))) {
+                            String logicalConnectionPoint1 = new StringBuilder("DEG").append(cpMapEntry.getKey())
+                                .append("-TTP-").append(port1.getPortDirection().getName().toUpperCase()).toString();
                             LOG.info("{} : Logical Connection Point for {} {} is {}", nodeId,
-                                connectionPortMap.get(k).get(0).getCircuitPackName(), port1.getPortName(),
-                                logicalConnectionPoint1);
-                            portMapList.add(createMappingObject(nodeId, port1, connectionPortMap.get(k).get(0)
-                                .getCircuitPackName(), logicalConnectionPoint1));
-                            String logicalConnectionPoint2 = new StringBuilder("DEG").append(k).append("-TTP-")
-                                .append(port2.getPortDirection().getName().toUpperCase()).toString();
+                                connectionPortMap.get(cpMapEntry.getKey()).get(0).getCircuitPackName(),
+                                port1.getPortName(), logicalConnectionPoint1);
+                            portMapList.add(createMappingObject(nodeId, port1, connectionPortMap
+                                .get(cpMapEntry.getKey()).get(0).getCircuitPackName(), logicalConnectionPoint1));
+                            String logicalConnectionPoint2 = new StringBuilder("DEG").append(cpMapEntry.getKey())
+                                .append("-TTP-").append(port2.getPortDirection().getName().toUpperCase()).toString();
                             LOG.info("{} : Logical Connection Point for {} {} is {}", nodeId,
-                                connectionPortMap.get(k).get(1).getCircuitPackName(), port2.getPortName(),
-                                logicalConnectionPoint2);
-                            portMapList.add(createMappingObject(nodeId, port2, connectionPortMap.get(k).get(1)
-                                .getCircuitPackName(), logicalConnectionPoint2));
+                                connectionPortMap.get(cpMapEntry.getKey()).get(1).getCircuitPackName(),
+                                port2.getPortName(), logicalConnectionPoint2);
+                            portMapList.add(createMappingObject(nodeId, port2, connectionPortMap
+                                .get(cpMapEntry.getKey()).get(1).getCircuitPackName(), logicalConnectionPoint2));
                         } else {
                             LOG.error(
                                 "Impossible to create logical connection point for port {} or port {} on node {} - Error in configuration with port-qual, port-direction or partner-port configuration",
@@ -784,14 +821,14 @@ public class PortMappingVersion121 {
                         }
                     } else {
                         LOG.error("No port {} on circuit pack {} for node {}",
-                            connectionPortMap.get(k).get(0).getPortName().toString(),
-                            connectionPortMap.get(k).get(0).getCircuitPackName(), nodeId);
+                            connectionPortMap.get(cpMapEntry.getKey()).get(0).getPortName().toString(),
+                            connectionPortMap.get(cpMapEntry.getKey()).get(0).getCircuitPackName(), nodeId);
                         return false;
                     }
 
                     break;
                 default:
-                    LOG.error("Number of connection port for DEG{} on {} is incorrect", k, nodeId);
+                    LOG.error("Number of connection port for DEG{} on {} is incorrect", cpMapEntry.getKey(), nodeId);
                     continue;
             }
         }
@@ -799,36 +836,40 @@ public class PortMappingVersion121 {
     }
 
     private NodeInfo createNodeInfo(Info deviceInfo) {
-        NodeInfoBuilder nodeInfoBldr = new NodeInfoBuilder();
-        if (deviceInfo.getNodeType() != null) {
-            nodeInfoBldr = new NodeInfoBuilder()
+
+        if (deviceInfo.getNodeType() == null) {
+            // TODO make mandatory in yang
+            LOG.error("Node type field is missing");
+            return null;
+        }
+
+        NodeInfoBuilder nodeInfoBldr = new NodeInfoBuilder()
                 .setOpenroadmVersion(OpenroadmVersion._121);
-            if (deviceInfo.getNodeType().getIntValue() == 1) {
-                nodeInfoBldr.setNodeType(NodeTypes.Rdm);
-            } else if (deviceInfo.getNodeType().getIntValue() == 2) {
-                nodeInfoBldr.setNodeType(NodeTypes.Xpdr);
-            } else {
+        // TODO check if we can use here .setNodeType(NodeTypes.forValue(..) such as with 221
+        switch (deviceInfo.getNodeType().getIntValue()) {
+            case 1:
+            case 2:
+                nodeInfoBldr.setNodeType(NodeTypes.forValue(deviceInfo.getNodeType().getIntValue()));
+                break;
+            default:
                 LOG.error("Error with node-type of {}", deviceInfo.getNodeId());
-            }
-            if (deviceInfo.getClli() != null && !deviceInfo.getClli().isEmpty()) {
-                nodeInfoBldr.setNodeClli(deviceInfo.getClli());
-            } else {
-                nodeInfoBldr.setNodeClli("defaultCLLI");
-            }
-            if (deviceInfo.getModel() != null) {
-                nodeInfoBldr.setNodeModel(deviceInfo.getModel());
-            }
-            if (deviceInfo.getVendor() != null) {
-                nodeInfoBldr.setNodeVendor(deviceInfo.getVendor());
-            }
-            if (deviceInfo.getIpAddress() != null) {
-                nodeInfoBldr.setNodeIpAddress(deviceInfo.getIpAddress());
-            }
+                // TODO: is this protection useful ? it is not present in Portmapping 221
+        }
+        if (deviceInfo.getClli() != null && !deviceInfo.getClli().isEmpty()) {
+            nodeInfoBldr.setNodeClli(deviceInfo.getClli());
         } else {
-         // TODO make mandatory in yang
-            LOG.error("Node type field is missing");
-            return null;
+            nodeInfoBldr.setNodeClli("defaultCLLI");
         }
+        if (deviceInfo.getModel() != null) {
+            nodeInfoBldr.setNodeModel(deviceInfo.getModel());
+        }
+        if (deviceInfo.getVendor() != null) {
+            nodeInfoBldr.setNodeVendor(deviceInfo.getVendor());
+        }
+        if (deviceInfo.getIpAddress() != null) {
+            nodeInfoBldr.setNodeIpAddress(deviceInfo.getIpAddress());
+        }
+
         return nodeInfoBldr.build();
     }