2 * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.ovsdb.southbound;
10 import com.google.common.base.Optional;
11 import com.google.common.base.Preconditions;
12 import com.google.common.util.concurrent.CheckedFuture;
14 import java.net.InetAddress;
15 import java.net.NetworkInterface;
16 import java.util.Enumeration;
18 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
19 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
20 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
21 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
22 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAttributes;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeAugmentation;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeRef;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.ConnectionInfo;
27 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
28 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
29 import org.opendaylight.yangtools.yang.data.impl.codec.DeserializationException;
30 import org.slf4j.Logger;
31 import org.slf4j.LoggerFactory;
33 public class SouthboundUtil {
35 private static final Logger LOG = LoggerFactory.getLogger(SouthboundUtil.class);
37 private static InstanceIdentifierCodec instanceIdentifierCodec;
39 private SouthboundUtil() {
40 // Prevent instantiating a utility class
43 public static void setInstanceIdentifierCodec(InstanceIdentifierCodec iidc) {
44 instanceIdentifierCodec = iidc;
47 public static InstanceIdentifierCodec getInstanceIdentifierCodec() {
48 return instanceIdentifierCodec;
51 public static String serializeInstanceIdentifier(InstanceIdentifier<?> iid) {
52 return instanceIdentifierCodec.serialize(iid);
55 public static InstanceIdentifier<?> deserializeInstanceIdentifier(String iidString) {
56 InstanceIdentifier<?> result = null;
58 result = instanceIdentifierCodec.bindingDeserializer(iidString);
59 } catch (DeserializationException e) {
60 LOG.warn("Unable to deserialize iidString", e);
66 public static Optional<OvsdbNodeAugmentation> getManagingNode(DataBroker db, OvsdbBridgeAttributes mn) {
67 Preconditions.checkNotNull(mn);
69 OvsdbNodeRef ref = mn.getManagedBy();
70 if (ref != null && ref.getValue() != null) {
71 ReadOnlyTransaction transaction = db.newReadOnlyTransaction();
72 @SuppressWarnings("unchecked") // Note: erasure makes this safe in combination with the typecheck below
73 InstanceIdentifier<Node> path = (InstanceIdentifier<Node>) ref.getValue();
75 CheckedFuture<Optional<Node>, ReadFailedException> nf = transaction.read(
76 LogicalDatastoreType.OPERATIONAL, path);
78 Optional<Node> optional = nf.get();
79 if (optional != null && optional.isPresent()) {
80 OvsdbNodeAugmentation ovsdbNode = null;
81 Node node = optional.get();
82 if (node instanceof OvsdbNodeAugmentation) {
83 ovsdbNode = (OvsdbNodeAugmentation) node;
84 } else if (node != null) {
85 ovsdbNode = node.getAugmentation(OvsdbNodeAugmentation.class);
87 if (ovsdbNode != null) {
88 return Optional.of(ovsdbNode);
90 LOG.warn("OvsdbManagedNode {} claims to be managed by {} but "
91 + "that OvsdbNode does not exist", mn, ref.getValue());
92 return Optional.absent();
95 LOG.warn("Mysteriously got back a thing which is *not* a topology Node: {}", optional);
96 return Optional.absent();
99 LOG.warn("Cannot find client for OvsdbManagedNode without a specified ManagedBy {}", mn);
100 return Optional.absent();
102 } catch (Exception e) {
103 LOG.warn("Failed to get OvsdbNode that manages OvsdbManagedNode {}", mn, e);
104 return Optional.absent();
108 public static <D extends org.opendaylight.yangtools.yang.binding.DataObject> Optional<D> readNode(
109 ReadWriteTransaction transaction, final InstanceIdentifier<D> connectionIid) {
110 Optional<D> node = Optional.absent();
112 node = transaction.read(LogicalDatastoreType.OPERATIONAL, connectionIid).checkedGet();
113 } catch (final ReadFailedException e) {
114 LOG.warn("Read Operational/DS for Node failed! {}", connectionIid, e);
119 private static String getLocalControllerHostIpAddress() {
120 String ipaddress = null;
122 for (Enumeration<NetworkInterface> ifaces = NetworkInterface.getNetworkInterfaces();
123 ifaces.hasMoreElements();) {
124 NetworkInterface iface = ifaces.nextElement();
126 for (Enumeration<InetAddress> inetAddrs = iface.getInetAddresses(); inetAddrs.hasMoreElements();) {
127 InetAddress inetAddr = inetAddrs.nextElement();
128 if (!inetAddr.isLoopbackAddress() && inetAddr.isSiteLocalAddress()) {
129 ipaddress = inetAddr.getHostAddress();
134 } catch (Exception e) {
135 LOG.warn("Exception while fetching local host ip address ",e);
140 public static String getControllerTarget(Node ovsdbNode) {
141 String target = null;
142 String ipAddr = null;
143 OvsdbNodeAugmentation ovsdbNodeAugmentation = ovsdbNode.getAugmentation(OvsdbNodeAugmentation.class);
144 ConnectionInfo connectionInfo = ovsdbNodeAugmentation.getConnectionInfo();
145 LOG.info("connectionInfo: {}", connectionInfo);
146 if (connectionInfo != null && connectionInfo.getLocalIp() != null) {
147 ipAddr = String.valueOf(connectionInfo.getLocalIp().getValue());
149 if (ipAddr == null) {
150 ipAddr = getLocalControllerHostIpAddress();
153 if (ipAddr != null) {
154 target = SouthboundConstants.OPENFLOW_CONNECTION_PROTOCOL + ":"
155 + ipAddr + ":" + SouthboundConstants.DEFAULT_OPENFLOW_PORT;
161 public static String connectionInfoToString(final ConnectionInfo connectionInfo) {
162 return String.valueOf(
163 connectionInfo.getRemoteIp().getValue()) + ":" + connectionInfo.getRemotePort().getValue();