2 * Copyright (c) 2015 Ericsson India Global Services Pvt Ltd. 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
9 package org.opendaylight.ovsdb.hwvtepsouthbound;
11 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
12 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
13 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
14 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
15 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
16 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentation;
18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalRef;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepLogicalSwitchAttributes;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepPhysicalSwitchAttributes;
21 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
22 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
23 import org.opendaylight.yangtools.yang.data.impl.codec.DeserializationException;
24 import org.slf4j.Logger;
25 import org.slf4j.LoggerFactory;
27 import com.google.common.base.Optional;
28 import com.google.common.base.Preconditions;
29 import com.google.common.util.concurrent.CheckedFuture;
31 public class HwvtepSouthboundUtil {
33 private static final Logger LOG = LoggerFactory.getLogger(HwvtepSouthboundUtil.class);
35 private static InstanceIdentifierCodec instanceIdentifierCodec;
37 private HwvtepSouthboundUtil() {
38 // Prevent instantiating a utility class
41 public static void setInstanceIdentifierCodec(InstanceIdentifierCodec iidc) {
42 instanceIdentifierCodec = iidc;
45 public static InstanceIdentifierCodec getInstanceIdentifierCodec() {
46 return instanceIdentifierCodec;
49 public static String serializeInstanceIdentifier(InstanceIdentifier<?> iid) {
50 return instanceIdentifierCodec.serialize(iid);
53 public static InstanceIdentifier<?> deserializeInstanceIdentifier(String iidString) {
54 InstanceIdentifier<?> result = null;
56 result = instanceIdentifierCodec.bindingDeserializer(iidString);
57 } catch (DeserializationException e) {
58 LOG.warn("Unable to deserialize iidString", e);
63 public static <D extends org.opendaylight.yangtools.yang.binding.DataObject> Optional<D> readNode(
64 ReadWriteTransaction transaction, final InstanceIdentifier<D> connectionIid) {
65 Optional<D> node = Optional.absent();
67 node = transaction.read(LogicalDatastoreType.OPERATIONAL, connectionIid).checkedGet();
68 } catch (final ReadFailedException e) {
69 LOG.warn("Read Operational/DS for Node failed! {}", connectionIid, e);
74 public static <D extends org.opendaylight.yangtools.yang.binding.DataObject> boolean deleteNode(
75 ReadWriteTransaction transaction, final InstanceIdentifier<D> connectionIid) {
76 boolean result = false;
77 transaction.delete(LogicalDatastoreType.OPERATIONAL, connectionIid);
78 CheckedFuture<Void, TransactionCommitFailedException> future = transaction.submit();
82 } catch (TransactionCommitFailedException e) {
83 LOG.warn("Failed to delete {} ", connectionIid, e);
88 public static Optional<HwvtepGlobalAugmentation> getManagingNode(DataBroker db,
89 HwvtepPhysicalSwitchAttributes pNode) {
90 Preconditions.checkNotNull(pNode);
91 Optional<HwvtepGlobalAugmentation> result = null;
92 HwvtepGlobalRef ref = pNode.getManagedBy();
93 if (ref != null && ref.getValue() != null) {
94 result = getManagingNode(db, ref);
96 LOG.warn("Cannot find client for PhysicalSwitch without a specified ManagedBy {}", pNode);
97 return Optional.absent();
99 if (!result.isPresent()) {
100 LOG.warn("Failed to find managing node for PhysicalSwitch {}", pNode);
105 public static Optional<HwvtepGlobalAugmentation> getManagingNode(DataBroker db,
106 HwvtepLogicalSwitchAttributes lNode) {
107 Preconditions.checkNotNull(lNode);
108 Optional<HwvtepGlobalAugmentation> result = null;
110 HwvtepGlobalRef ref = lNode.getLogicalSwitchManagedBy();
111 if (ref != null && ref.getValue() != null) {
112 result = getManagingNode(db, ref);
114 LOG.warn("Cannot find client for LogicalSwitch without a specified ManagedBy {}", lNode);
115 return Optional.absent();
117 if(!result.isPresent()) {
118 LOG.warn("Failed to find managing node for PhysicalSwitch {}",lNode);
123 private static Optional<HwvtepGlobalAugmentation> getManagingNode(DataBroker db, HwvtepGlobalRef ref) {
125 ReadOnlyTransaction transaction = db.newReadOnlyTransaction();
126 @SuppressWarnings("unchecked")
127 // Note: erasure makes this safe in combination with the typecheck
129 InstanceIdentifier<Node> path = (InstanceIdentifier<Node>) ref.getValue();
131 CheckedFuture<Optional<Node>, ReadFailedException> nf =
132 transaction.read(LogicalDatastoreType.OPERATIONAL, path);
134 Optional<Node> optional = nf.get();
135 if (optional != null && optional.isPresent()) {
136 HwvtepGlobalAugmentation hwvtepNode = null;
137 Node node = optional.get();
138 if (node instanceof HwvtepGlobalAugmentation) {
139 hwvtepNode = (HwvtepGlobalAugmentation) node;
140 } else if (node != null) {
141 hwvtepNode = node.getAugmentation(HwvtepGlobalAugmentation.class);
143 if (hwvtepNode != null) {
144 return Optional.of(hwvtepNode);
146 LOG.warn("Hwvtep switch claims to be managed by {} but " + "that HwvtepNode does not exist",
148 return Optional.absent();
151 LOG.warn("Mysteriously got back a thing which is *not* a topology Node: {}", optional);
152 return Optional.absent();
154 } catch (Exception e) {
155 LOG.warn("Failed to get HwvtepNode {}", ref, e);
156 return Optional.absent();