ovsdb enable checkstyle on error
[ovsdb.git] / southbound / southbound-impl / src / main / java / org / opendaylight / ovsdb / southbound / SouthboundMapper.java
index f0ce344a4851b78c0beef2d4127cee74da3962f3..cb2b4cd74ea0af9e2cf8d3ccf5e81e5b4b371367 100644 (file)
@@ -7,69 +7,71 @@
  */
 package org.opendaylight.ovsdb.southbound;
 
+import static org.opendaylight.ovsdb.southbound.SouthboundUtil.schemaMismatchLog;
+
+import com.google.common.base.Joiner;
+import com.google.common.base.Preconditions;
+import com.google.common.base.Splitter;
+import com.google.common.collect.ImmutableBiMap;
+import com.google.common.net.InetAddresses;
 import java.net.Inet4Address;
 import java.net.Inet6Address;
 import java.net.InetAddress;
 import java.net.UnknownHostException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
 import java.util.Set;
-
 import org.opendaylight.ovsdb.lib.OvsdbClient;
-import org.opendaylight.ovsdb.lib.OvsdbConnectionInfo;
+import org.opendaylight.ovsdb.lib.error.SchemaVersionMismatchException;
+import org.opendaylight.ovsdb.lib.notation.UUID;
+import org.opendaylight.ovsdb.lib.schema.DatabaseSchema;
+import org.opendaylight.ovsdb.lib.schema.typed.TyperUtils;
 import org.opendaylight.ovsdb.schema.openvswitch.Bridge;
+import org.opendaylight.ovsdb.schema.openvswitch.Controller;
+import org.opendaylight.ovsdb.schema.openvswitch.Manager;
+import org.opendaylight.ovsdb.schema.openvswitch.OpenVSwitch;
+import org.opendaylight.ovsdb.schema.openvswitch.Qos;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.IetfInetUtil;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.IpAddress;
-import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Address;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv6Address;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.PortNumber;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Uri;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.DatapathId;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeName;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.DatapathTypeBase;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.DatapathTypeSystem;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.InterfaceTypeBase;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAugmentation;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeProtocolBase;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeAugmentation;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeAugmentationBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.QosTypeBase;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.ControllerEntry;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.ControllerEntryBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.ProtocolEntry;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.ProtocolEntryBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.ConnectionInfo;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.ConnectionInfoBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.ManagerEntry;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.ManagerEntryBuilder;
 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
-import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeBuilder;
 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeKey;
 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import com.google.common.base.Joiner;
-import com.google.common.base.Preconditions;
-import com.google.common.base.Splitter;
-
 public class SouthboundMapper {
     private static final Logger LOG = LoggerFactory.getLogger(SouthboundMapper.class);
-
-    public static Node createNode(OvsdbClient client) {
-        NodeBuilder nodeBuilder = new NodeBuilder();
-        nodeBuilder.setNodeId(createNodeId(client.getConnectionInfo()));
-        nodeBuilder.addAugmentation(OvsdbNodeAugmentation.class, createOvsdbAugmentation(client));
-        return nodeBuilder.build();
-    }
-    public static Node createNode(OvsdbClientKey key) {
-        NodeBuilder nodeBuilder = new NodeBuilder();
-        nodeBuilder.setNodeId(createNodeId(key.getIp(),key.getPort()));
-        nodeBuilder.addAugmentation(OvsdbNodeAugmentation.class, createOvsdbAugmentation(key));
-        return nodeBuilder.build();
-    }
-
-    public static OvsdbNodeAugmentation createOvsdbAugmentation(OvsdbClient client) {
-        return createOvsdbAugmentation(new OvsdbClientKey(client));
-    }
-
-    public static OvsdbNodeAugmentation createOvsdbAugmentation(OvsdbClientKey key) {
-        OvsdbNodeAugmentationBuilder ovsdbNodeBuilder = new OvsdbNodeAugmentationBuilder();
-        ovsdbNodeBuilder.setIp(key.getIp());
-        ovsdbNodeBuilder.setPort(key.getPort());
-        return ovsdbNodeBuilder.build();
-    }
+    private static final String N_CONNECTIONS_STR = "n_connections";
 
     public static IpAddress createIpAddress(InetAddress address) {
         IpAddress ip = null;
-        if(address instanceof Inet4Address) {
+        if (address instanceof Inet4Address) {
             ip = createIpAddress((Inet4Address)address);
         } else if (address instanceof Inet6Address) {
             ip = createIpAddress((Inet6Address)address);
@@ -78,8 +80,7 @@ public class SouthboundMapper {
     }
 
     public static IpAddress createIpAddress(Inet4Address address) {
-        Ipv4Address ipv4 = new Ipv4Address(address.getHostAddress());
-        return new IpAddress(ipv4);
+        return IetfInetUtil.INSTANCE.ipAddressFor(address);
     }
 
     public static IpAddress createIpAddress(Inet6Address address) {
@@ -87,72 +88,69 @@ public class SouthboundMapper {
         return new IpAddress(ipv6);
     }
 
-    public static InstanceIdentifier<Node> createInstanceIdentifier(OvsdbClient client) {
-        return createInstanceIdentifier(createIpAddress(client.getConnectionInfo().getRemoteAddress()),
-                new PortNumber(client.getConnectionInfo().getRemotePort()));
-    }
-
-    public static InstanceIdentifier<Node> createInstanceIdentifier(NodeId nodeId) {
-        InstanceIdentifier<Node> nodePath = InstanceIdentifier
+    public static InstanceIdentifier<Topology> createTopologyInstanceIdentifier() {
+        return InstanceIdentifier
                 .create(NetworkTopology.class)
-                .child(Topology.class, new TopologyKey(SouthboundConstants.OVSDB_TOPOLOGY_ID))
-                .child(Node.class,new NodeKey(nodeId));
-        return nodePath;
+                .child(Topology.class, new TopologyKey(SouthboundConstants.OVSDB_TOPOLOGY_ID));
     }
 
-    public static InstanceIdentifier<Node> createInstanceIdentifier(OvsdbClientKey key,OvsdbBridgeName bridgeName) {
-        return createInstanceIdentifier(createManagedNodeId(key, bridgeName));
+    public static InstanceIdentifier<OvsdbBridgeAugmentation>
+        createBridgeInstanceIdentifier(OvsdbConnectionInstance client, String bridgeName) {
+        return createInstanceIdentifier(client, bridgeName).augmentation(OvsdbBridgeAugmentation.class);
     }
 
-    public static InstanceIdentifier<Node> createInstanceIdentifier(OvsdbClientKey key) {
-        return createInstanceIdentifier(key.getIp(), key.getPort());
-    }
-
-    public static InstanceIdentifier<Node> createInstanceIdentifier(IpAddress ip, PortNumber port) {
-        InstanceIdentifier<Node> path = InstanceIdentifier
-                .create(NetworkTopology.class)
-                .child(Topology.class, new TopologyKey(SouthboundConstants.OVSDB_TOPOLOGY_ID))
-                .child(Node.class,createNodeKey(ip,port));
-        LOG.info("Created ovsdb path: {}",path);
-        return path;
-    }
-
-    public static NodeKey createNodeKey(IpAddress ip, PortNumber port) {
-        return new NodeKey(createNodeId(ip,port));
+    public static InstanceIdentifier<Node> createInstanceIdentifier(NodeId nodeId) {
+        return createTopologyInstanceIdentifier()
+                .child(Node.class,new NodeKey(nodeId));
     }
 
-    public static NodeId createNodeId(OvsdbConnectionInfo connectionInfo) {
-        return createNodeId(createIpAddress(connectionInfo.getRemoteAddress()),
-                new PortNumber(connectionInfo.getRemotePort()));
+    @SuppressWarnings("unchecked")
+    public static InstanceIdentifier<Node> createInstanceIdentifier(OvsdbConnectionInstance client,Bridge bridge) {
+        InstanceIdentifier<Node> iid;
+        if (bridge.getExternalIdsColumn() != null
+                && bridge.getExternalIdsColumn().getData() != null
+                && bridge.getExternalIdsColumn().getData().containsKey(SouthboundConstants.IID_EXTERNAL_ID_KEY)) {
+            String iidString = bridge.getExternalIdsColumn().getData().get(SouthboundConstants.IID_EXTERNAL_ID_KEY);
+            iid = (InstanceIdentifier<Node>) SouthboundUtil.deserializeInstanceIdentifier(iidString);
+        } else {
+            iid = createInstanceIdentifier(client, bridge.getName());
+        }
+        return iid;
     }
 
-    public static NodeId createManagedNodeId(OvsdbConnectionInfo connectionInfo, OvsdbBridgeName bridgeName) {
-        return createManagedNodeId(createIpAddress(connectionInfo.getRemoteAddress()),
-                new PortNumber(connectionInfo.getRemotePort()),
-                bridgeName);
+    @SuppressWarnings("unchecked")
+    public static InstanceIdentifier<Node> createInstanceIdentifier(
+            OvsdbConnectionInstance client, Controller controller, String bridgeName) {
+        InstanceIdentifier<Node> iid;
+        if (controller.getExternalIdsColumn() != null
+                && controller.getExternalIdsColumn().getData() != null
+                && controller.getExternalIdsColumn().getData().containsKey(SouthboundConstants.IID_EXTERNAL_ID_KEY)) {
+            String iidString = controller.getExternalIdsColumn().getData().get(SouthboundConstants.IID_EXTERNAL_ID_KEY);
+            iid = (InstanceIdentifier<Node>) SouthboundUtil.deserializeInstanceIdentifier(iidString);
+        } else {
+            iid = createInstanceIdentifier(client, bridgeName);
+        }
+        return iid;
     }
 
-    public static NodeId createManagedNodeId(OvsdbClientKey key, OvsdbBridgeName bridgeName) {
-        return createManagedNodeId(key.getIp(),key.getPort(),bridgeName);
-    }
+    public static InstanceIdentifier<Node> createInstanceIdentifier(
+            OvsdbConnectionInstance client, String bridgeName) {
+        String nodeString = client.getNodeKey().getNodeId().getValue()
+                + "/bridge/" + bridgeName;
+        NodeId nodeId = new NodeId(new Uri(nodeString));
+        return createInstanceIdentifier(nodeId);
 
-    public static NodeId createManagedNodeId(IpAddress ip, PortNumber port, OvsdbBridgeName bridgeName) {
-        return new NodeId(createNodeId(ip,port).getValue()
-                + "/"+SouthboundConstants.BRIDGE_URI_PREFIX+"/"+ bridgeName.getValue());
     }
 
-    public static NodeId createNodeId(IpAddress ip, PortNumber port) {
-        String uriString = SouthboundConstants.OVSDB_URI_PREFIX + "://" + new String(ip.getValue()) +
-                   ":" + port.getValue();
-        Uri uri = new Uri(uriString);
-        NodeId nodeId = new NodeId(uri);
-        return nodeId;
+    public static NodeId createManagedNodeId(InstanceIdentifier<Node> iid) {
+        NodeKey nodeKey = iid.firstKeyOf(Node.class, NodeKey.class);
+        return nodeKey.getNodeId();
     }
 
     public static InetAddress createInetAddress(IpAddress ip) throws UnknownHostException {
-        if(ip.getIpv4Address() != null) {
-            return InetAddress.getByName(ip.getIpv4Address().getValue());
-        } else if(ip.getIpv6Address() != null) {
+        if (ip.getIpv4Address() != null) {
+            return InetAddresses.forString(ip.getIpv4Address().getValue());
+        } else if (ip.getIpv6Address() != null) {
             return InetAddress.getByName(ip.getIpv6Address().getValue());
         } else {
             throw new UnknownHostException("IP Address has no value");
@@ -161,7 +159,7 @@ public class SouthboundMapper {
 
     public static DatapathId createDatapathId(Bridge bridge) {
         Preconditions.checkNotNull(bridge);
-        if(bridge.getDatapathIdColumn() == null) {
+        if (bridge.getDatapathIdColumn() == null) {
             return null;
         } else {
             return createDatapathId(bridge.getDatapathIdColumn().getData());
@@ -170,7 +168,7 @@ public class SouthboundMapper {
 
     public static DatapathId createDatapathId(Set<String> dpids) {
         Preconditions.checkNotNull(dpids);
-        if(dpids.isEmpty()) {
+        if (dpids.isEmpty()) {
             return null;
         } else {
             String[] dpidArray = new String[dpids.size()];
@@ -182,7 +180,7 @@ public class SouthboundMapper {
     public static DatapathId createDatapathId(String dpid) {
         Preconditions.checkNotNull(dpid);
         DatapathId datapath;
-        if(dpid.matches("^[0-9a-fA-F]{16}")) {
+        if (dpid.matches("^[0-9a-fA-F]{16}")) {
             Splitter splitter = Splitter.fixedLength(2);
             Joiner joiner = Joiner.on(":");
             datapath = new DatapathId(joiner.join(splitter.split(dpid)));
@@ -191,4 +189,322 @@ public class SouthboundMapper {
         }
         return datapath;
     }
+
+    public static String createDatapathType(OvsdbBridgeAugmentation mdsalbridge) {
+        String datapathtype = SouthboundConstants.DATAPATH_TYPE_MAP.get(DatapathTypeSystem.class);
+
+        if (mdsalbridge.getDatapathType() != null && !mdsalbridge.getDatapathType().equals(DatapathTypeBase.class)) {
+            datapathtype = SouthboundConstants.DATAPATH_TYPE_MAP.get(mdsalbridge.getDatapathType());
+            if (datapathtype == null) {
+                throw new IllegalArgumentException("Unknown datapath type " + mdsalbridge.getDatapathType().getName());
+            }
+        }
+        return datapathtype;
+    }
+
+    public static  Class<? extends DatapathTypeBase> createDatapathType(String type) {
+        Preconditions.checkNotNull(type);
+        if (type.isEmpty()) {
+            return DatapathTypeSystem.class;
+        } else {
+            ImmutableBiMap<String, Class<? extends DatapathTypeBase>> mapper =
+                    SouthboundConstants.DATAPATH_TYPE_MAP.inverse();
+            return mapper.get(type);
+        }
+    }
+
+    public static Set<String> createOvsdbBridgeProtocols(OvsdbBridgeAugmentation ovsdbBridgeNode) {
+        Set<String> protocols = new HashSet<>();
+        if (ovsdbBridgeNode.getProtocolEntry() != null && ovsdbBridgeNode.getProtocolEntry().size() > 0) {
+            for (ProtocolEntry protocol : ovsdbBridgeNode.getProtocolEntry()) {
+                if (SouthboundConstants.OVSDB_PROTOCOL_MAP.get(protocol.getProtocol()) != null) {
+                    protocols.add(SouthboundConstants.OVSDB_PROTOCOL_MAP.get(protocol.getProtocol()));
+                } else {
+                    throw new IllegalArgumentException("Unknown protocol " + protocol.getProtocol());
+                }
+            }
+        }
+        return protocols;
+    }
+
+    public static  Class<? extends InterfaceTypeBase> createInterfaceType(String type) {
+        Preconditions.checkNotNull(type);
+        return SouthboundConstants.OVSDB_INTERFACE_TYPE_MAP.get(type);
+    }
+
+    public static String createOvsdbInterfaceType(Class<? extends InterfaceTypeBase> mdsaltype) {
+        Preconditions.checkNotNull(mdsaltype);
+        ImmutableBiMap<Class<? extends InterfaceTypeBase>, String> mapper =
+                SouthboundConstants.OVSDB_INTERFACE_TYPE_MAP.inverse();
+        return mapper.get(mdsaltype);
+    }
+
+    public static List<ProtocolEntry> createMdsalProtocols(Bridge bridge) {
+        Set<String> protocols = null;
+        try {
+            protocols = bridge.getProtocolsColumn().getData();
+        } catch (SchemaVersionMismatchException e) {
+            schemaMismatchLog("protocols", "Bridge", e);
+        }
+        List<ProtocolEntry> protocolList = new ArrayList<>();
+        if (protocols != null && protocols.size() > 0) {
+            ImmutableBiMap<String, Class<? extends OvsdbBridgeProtocolBase>> mapper =
+                    SouthboundConstants.OVSDB_PROTOCOL_MAP.inverse();
+            for (String protocol : protocols) {
+                if (protocol != null && mapper.get(protocol) != null) {
+                    protocolList.add(new ProtocolEntryBuilder().setProtocol(mapper.get(protocol)).build());
+                }
+            }
+        }
+        return protocolList;
+    }
+
+    /**
+     * Create the {@link ControllerEntry} list given an OVSDB {@link Bridge}
+     * and {@link Controller} rows.
+     *
+     * @param bridge the {@link Bridge} to update
+     * @param updatedControllerRows the list of {@link Controller} controllers with updates
+     * @return list of {@link ControllerEntry} entries
+     */
+    public static List<ControllerEntry> createControllerEntries(Bridge bridge,
+                                                                Map<UUID, Controller> updatedControllerRows) {
+
+        LOG.debug("createControllerEntries Bridge: {}\n, updatedControllerRows: {}",
+                bridge, updatedControllerRows);
+        final Set<UUID> controllerUuids = bridge.getControllerColumn().getData();
+        final List<ControllerEntry> controllerEntries = new ArrayList<>();
+        for (UUID controllerUuid : controllerUuids ) {
+            final Controller controller = updatedControllerRows.get(controllerUuid);
+            addControllerEntries(controllerEntries, controller);
+        }
+        LOG.debug("controllerEntries: {}", controllerEntries);
+        return controllerEntries;
+    }
+
+    /**
+     * Create the {@link ControllerEntry} list given an MDSAL {@link Node} bridge
+     * and {@link Controller} rows.
+     *
+     * @param bridgeNode the {@link Node} to update
+     * @param updatedControllerRows the list of {@link Controller} controllers with updates
+     * @return list of {@link ControllerEntry} entries
+     */
+    public static List<ControllerEntry> createControllerEntries(Node bridgeNode,
+                                                                Map<UUID, Controller> updatedControllerRows) {
+
+        LOG.debug("createControllerEntries Bridge 2: {}\n, updatedControllerRows: {}",
+                bridgeNode, updatedControllerRows);
+        final List<ControllerEntry> controllerEntriesCreated = new ArrayList<>();
+        final OvsdbBridgeAugmentation ovsdbBridgeAugmentation =
+                bridgeNode.getAugmentation(OvsdbBridgeAugmentation.class);
+        if (ovsdbBridgeAugmentation == null) {
+            return controllerEntriesCreated;
+        }
+
+        final List<ControllerEntry> controllerEntries = ovsdbBridgeAugmentation.getControllerEntry();
+        if (controllerEntries != null) {
+            for (ControllerEntry controllerEntry : controllerEntries) {
+                final Controller controller = updatedControllerRows.get(
+                        new UUID(controllerEntry.getControllerUuid().getValue()));
+                addControllerEntries(controllerEntriesCreated, controller);
+            }
+        }
+        LOG.debug("controllerEntries: {}", controllerEntriesCreated);
+        return controllerEntriesCreated;
+    }
+
+    /**
+     * Add the OVSDB {@link Controller} updates to the MDSAL {@link ControllerEntry} list.
+     *
+     * @param controllerEntries the list of {@link ControllerEntry} to update
+     * @param controller the updated OVSDB {@link Controller}
+     */
+    public static void addControllerEntries(List<ControllerEntry> controllerEntries,
+                                            final Controller controller) {
+
+        if (controller != null && controller.getTargetColumn() != null) {
+            final String targetString = controller.getTargetColumn().getData();
+            final org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid uuid =
+                    new org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang
+                            .ietf.yang.types.rev130715.Uuid(controller.getUuid().toString());
+
+            controllerEntries.add(new ControllerEntryBuilder()
+                    .setTarget(new Uri(targetString))
+                    .setIsConnected(controller.getIsConnectedColumn().getData())
+                    .setControllerUuid(uuid).build());
+        }
+    }
+
+    public static Map<UUID, Controller> createOvsdbController(OvsdbBridgeAugmentation omn,DatabaseSchema dbSchema) {
+        List<ControllerEntry> controllerEntries = omn.getControllerEntry();
+        Map<UUID,Controller> controllerMap = new HashMap<>();
+        if (controllerEntries != null && !controllerEntries.isEmpty()) {
+            for (ControllerEntry controllerEntry : controllerEntries) {
+                String controllerNamedUuid = "Controller_" + getRandomUuid();
+                Controller controller = TyperUtils.getTypedRowWrapper(dbSchema, Controller.class);
+                controller.setTarget(controllerEntry.getTarget().getValue());
+                controllerMap.put(new UUID(controllerNamedUuid), controller);
+            }
+        }
+        return controllerMap;
+    }
+
+    public static String getRandomUuid() {
+        return "Random_" + java.util.UUID.randomUUID().toString().replace("-", "");
+    }
+
+    public static ConnectionInfo createConnectionInfo(OvsdbClient client) {
+        ConnectionInfoBuilder connectionInfoBuilder = new ConnectionInfoBuilder();
+        connectionInfoBuilder.setRemoteIp(createIpAddress(client.getConnectionInfo().getRemoteAddress()));
+        connectionInfoBuilder.setRemotePort(new PortNumber(client.getConnectionInfo().getRemotePort()));
+        connectionInfoBuilder.setLocalIp(createIpAddress(client.getConnectionInfo().getLocalAddress()));
+        connectionInfoBuilder.setLocalPort(new PortNumber(client.getConnectionInfo().getLocalPort()));
+        return connectionInfoBuilder.build();
+    }
+
+    public static ConnectionInfo suppressLocalIpPort(ConnectionInfo connectionInfo) {
+        ConnectionInfoBuilder connectionInfoBuilder = new ConnectionInfoBuilder();
+        connectionInfoBuilder.setRemoteIp(connectionInfo.getRemoteIp());
+        connectionInfoBuilder.setRemotePort(connectionInfo.getRemotePort());
+        return connectionInfoBuilder.build();
+    }
+
+    /**
+     * Create the {@link ManagerEntry} list given an OVSDB {@link OpenVSwitch}
+     * and {@link Manager} rows.
+     *
+     * @param ovsdbNode the {@link OpenVSwitch} to update
+     * @param updatedManagerRows the list of {@link Manager} managers with updates
+     * @return list of {@link ManagerEntry} entries
+     */
+    public static List<ManagerEntry> createManagerEntries(OpenVSwitch ovsdbNode,
+                                                                Map<UUID, Manager> updatedManagerRows) {
+
+        LOG.debug("createManagerEntries OpenVSwitch: {}\n, updatedManagerRows: {}",
+                ovsdbNode, updatedManagerRows);
+        final Set<UUID> managerUuids = ovsdbNode.getManagerOptionsColumn().getData();
+        final List<ManagerEntry> managerEntries = new ArrayList<>();
+        for (UUID managerUuid : managerUuids) {
+            final Manager manager = updatedManagerRows.get(managerUuid);
+            addManagerEntries(managerEntries, manager);
+        }
+        LOG.debug("managerEntries: {}", managerEntries);
+        return managerEntries;
+    }
+
+    /**
+     * Create the {@link ManagerEntry} list given an MDSAL {@link Node} ovsdbNode
+     * and {@link Manager} rows.
+     *
+     * @param ovsdbNode the {@link Node} to update
+     * @param updatedManagerRows the list of {@link Manager} managers with updates
+     * @return list of {@link ManagerEntry} entries
+     */
+    public static List<ManagerEntry> createManagerEntries(Node ovsdbNode,
+                                                                Map<Uri, Manager> updatedManagerRows) {
+
+        LOG.debug("createManagerEntries based on OVSDB Node: {}\n, updatedManagerRows: {}",
+                ovsdbNode, updatedManagerRows);
+        final List<ManagerEntry> managerEntriesCreated = new ArrayList<>();
+        final OvsdbNodeAugmentation ovsdbNodeAugmentation =
+                ovsdbNode.getAugmentation(OvsdbNodeAugmentation.class);
+        if (ovsdbNodeAugmentation == null) {
+            return managerEntriesCreated;
+        }
+
+        final List<ManagerEntry> managerEntries = ovsdbNodeAugmentation.getManagerEntry();
+        if (managerEntries != null) {
+            for (ManagerEntry managerEntry : managerEntries) {
+                final Manager manager = updatedManagerRows.get(managerEntry.getTarget());
+                addManagerEntries(managerEntriesCreated, manager);
+            }
+        }
+        LOG.debug("managerEntries: {}", managerEntriesCreated);
+        return managerEntriesCreated;
+    }
+
+    /**
+     * Add the OVSDB {@link Manager} updates to the MDSAL {@link ManagerEntry} list.
+     *
+     * @param managerEntries the list of {@link ManagerEntry} to update
+     * @param manager the updated OVSDB {@link Manager}
+     */
+    public static void addManagerEntries(List<ManagerEntry> managerEntries,
+                                            final Manager manager) {
+
+        if (manager != null && manager.getTargetColumn() != null) {
+            long numberOfConnections = 0;
+            final String targetString = manager.getTargetColumn().getData();
+
+            final Map<String, String> statusAttributeMap = manager.getStatusColumn().getData();
+            if (statusAttributeMap.containsKey(N_CONNECTIONS_STR)) {
+                String numberOfConnectionValueStr = statusAttributeMap.get(N_CONNECTIONS_STR);
+                numberOfConnections = Integer.parseInt(numberOfConnectionValueStr);
+            } else {
+                final boolean isConnected = manager.getIsConnectedColumn().getData();
+                if (isConnected) {
+                    numberOfConnections = 1;
+                }
+            }
+            managerEntries.add(new ManagerEntryBuilder()
+                    .setTarget(new Uri(targetString))
+                    .setNumberOfConnections(numberOfConnections)
+                    .setConnected(manager.getIsConnectedColumn().getData()).build());
+        }
+    }
+
+    /**
+     * Return the MD-SAL QoS type class corresponding to the QoS type {@link Qos}.
+     *
+     * @param type the QoS type to match {@link String}
+     * @return class matching the input QoS type {@link QosTypeBase}
+     */
+    public static  Class<? extends QosTypeBase> createQosType(String type) {
+        Preconditions.checkNotNull(type);
+        if (type.isEmpty()) {
+            LOG.info("QoS type not supplied");
+            return QosTypeBase.class;
+        } else {
+            ImmutableBiMap<String, Class<? extends QosTypeBase>> mapper =
+                    SouthboundConstants.QOS_TYPE_MAP.inverse();
+            if (mapper.get(type) == null) {
+                LOG.info("QoS type not found in model: {}", type);
+                return QosTypeBase.class;
+            } else {
+                return mapper.get(type);
+            }
+        }
+    }
+
+    public static String createQosType(Class<? extends QosTypeBase> qosTypeClass) {
+        String qosType = SouthboundConstants.QOS_TYPE_MAP.get(QosTypeBase.class);
+
+        if (qosTypeClass != null && !qosTypeClass.equals(QosTypeBase.class)) {
+            qosType = SouthboundConstants.QOS_TYPE_MAP.get(qosTypeClass);
+            if (qosType == null) {
+                throw new IllegalArgumentException("Unknown QoS type" + qosTypeClass.getName());
+            }
+        }
+        return qosType;
+    }
+
+
+    public static InstanceIdentifier<Node> getInstanceIdentifier(OpenVSwitch ovs) {
+        if (ovs.getExternalIdsColumn() != null
+                && ovs.getExternalIdsColumn().getData() != null
+                && ovs.getExternalIdsColumn().getData().containsKey(SouthboundConstants.IID_EXTERNAL_ID_KEY)) {
+            String iidString = ovs.getExternalIdsColumn().getData().get(SouthboundConstants.IID_EXTERNAL_ID_KEY);
+            return (InstanceIdentifier<Node>) SouthboundUtil.deserializeInstanceIdentifier(iidString);
+        } else {
+            String nodeString = SouthboundConstants.OVSDB_URI_PREFIX + "://" + SouthboundConstants.UUID + "/"
+                    + ovs.getUuid().toString();
+            NodeId nodeId = new NodeId(new Uri(nodeString));
+            NodeKey nodeKey = new NodeKey(nodeId);
+            return InstanceIdentifier.builder(NetworkTopology.class)
+                    .child(Topology.class,new TopologyKey(SouthboundConstants.OVSDB_TOPOLOGY_ID))
+                    .child(Node.class,nodeKey)
+                    .build();
+        }
+    }
 }