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.controller.md.sal.common.api.data.TransactionCommitFailedException;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAttributes;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeAugmentation;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeRef;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.ConnectionInfo;
28 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
29 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
30 import org.opendaylight.yangtools.yang.data.impl.codec.DeserializationException;
31 import org.slf4j.Logger;
32 import org.slf4j.LoggerFactory;
34 public class SouthboundUtil {
36 private static final Logger LOG = LoggerFactory.getLogger(SouthboundUtil.class);
38 private static InstanceIdentifierCodec instanceIdentifierCodec;
40 private SouthboundUtil() {
41 // Prevent instantiating a utility class
44 public static void setInstanceIdentifierCodec(InstanceIdentifierCodec iidc) {
45 instanceIdentifierCodec = iidc;
48 public static InstanceIdentifierCodec getInstanceIdentifierCodec() {
49 return instanceIdentifierCodec;
52 public static String serializeInstanceIdentifier(InstanceIdentifier<?> iid) {
53 return instanceIdentifierCodec.serialize(iid);
56 public static InstanceIdentifier<?> deserializeInstanceIdentifier(String iidString) {
57 InstanceIdentifier<?> result = null;
59 result = instanceIdentifierCodec.bindingDeserializer(iidString);
60 } catch (DeserializationException e) {
61 LOG.warn("Unable to deserialize iidString", e);
67 public static Optional<OvsdbNodeAugmentation> getManagingNode(DataBroker db, OvsdbBridgeAttributes mn) {
68 Preconditions.checkNotNull(mn);
70 OvsdbNodeRef ref = mn.getManagedBy();
71 if (ref != null && ref.getValue() != null) {
72 ReadOnlyTransaction transaction = db.newReadOnlyTransaction();
73 @SuppressWarnings("unchecked") // Note: erasure makes this safe in combination with the typecheck below
74 InstanceIdentifier<Node> path = (InstanceIdentifier<Node>) ref.getValue();
76 CheckedFuture<Optional<Node>, ReadFailedException> nf = transaction.read(
77 LogicalDatastoreType.OPERATIONAL, path);
79 Optional<Node> optional = nf.get();
80 if (optional != null && optional.isPresent()) {
81 OvsdbNodeAugmentation ovsdbNode = null;
82 Node node = optional.get();
83 if (node instanceof OvsdbNodeAugmentation) {
84 ovsdbNode = (OvsdbNodeAugmentation) node;
85 } else if (node != null) {
86 ovsdbNode = node.getAugmentation(OvsdbNodeAugmentation.class);
88 if (ovsdbNode != null) {
89 return Optional.of(ovsdbNode);
91 LOG.warn("OvsdbManagedNode {} claims to be managed by {} but "
92 + "that OvsdbNode does not exist", mn, ref.getValue());
93 return Optional.absent();
96 LOG.warn("Mysteriously got back a thing which is *not* a topology Node: {}", optional);
97 return Optional.absent();
100 LOG.warn("Cannot find client for OvsdbManagedNode without a specified ManagedBy {}", mn);
101 return Optional.absent();
103 } catch (Exception e) {
104 LOG.warn("Failed to get OvsdbNode that manages OvsdbManagedNode {}", mn, e);
105 return Optional.absent();
109 public static <D extends org.opendaylight.yangtools.yang.binding.DataObject> Optional<D> readNode(
110 ReadWriteTransaction transaction, final InstanceIdentifier<D> connectionIid) {
111 Optional<D> node = Optional.absent();
113 node = transaction.read(LogicalDatastoreType.OPERATIONAL, connectionIid).checkedGet();
114 } catch (final ReadFailedException e) {
115 LOG.warn("Read Operational/DS for Node failed! {}", connectionIid, e);
120 public static <D extends org.opendaylight.yangtools.yang.binding.DataObject> boolean deleteNode(
121 ReadWriteTransaction transaction, final InstanceIdentifier<D> connectionIid) {
122 boolean result = false;
123 transaction.delete(LogicalDatastoreType.OPERATIONAL, connectionIid);
124 CheckedFuture<Void, TransactionCommitFailedException> future = transaction.submit();
128 } catch (TransactionCommitFailedException e) {
129 LOG.warn("Failed to delete {} ", connectionIid, e);
134 private static String getLocalControllerHostIpAddress() {
135 String ipaddress = null;
137 for (Enumeration<NetworkInterface> ifaces = NetworkInterface.getNetworkInterfaces();
138 ifaces.hasMoreElements();) {
139 NetworkInterface iface = ifaces.nextElement();
141 for (Enumeration<InetAddress> inetAddrs = iface.getInetAddresses(); inetAddrs.hasMoreElements();) {
142 InetAddress inetAddr = inetAddrs.nextElement();
143 if (!inetAddr.isLoopbackAddress() && inetAddr.isSiteLocalAddress()) {
144 ipaddress = inetAddr.getHostAddress();
149 } catch (Exception e) {
150 LOG.warn("Exception while fetching local host ip address ",e);
155 public static String getControllerTarget(Node ovsdbNode) {
156 String target = null;
157 String ipAddr = null;
158 OvsdbNodeAugmentation ovsdbNodeAugmentation = ovsdbNode.getAugmentation(OvsdbNodeAugmentation.class);
159 ConnectionInfo connectionInfo = ovsdbNodeAugmentation.getConnectionInfo();
160 LOG.info("connectionInfo: {}", connectionInfo);
161 if (connectionInfo != null && connectionInfo.getLocalIp() != null) {
162 ipAddr = new String(connectionInfo.getLocalIp().getValue());
164 if (ipAddr == null) {
165 ipAddr = getLocalControllerHostIpAddress();
168 if (ipAddr != null) {
169 target = SouthboundConstants.OPENFLOW_CONNECTION_PROTOCOL + ":"
170 + ipAddr + ":" + SouthboundConstants.DEFAULT_OPENFLOW_PORT;