2 * Copyright © 2015 Dell, 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
9 package org.opendaylight.ovsdb.openstack.netvirt.sfc;
11 import com.google.common.base.Preconditions;
12 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
13 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
14 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
15 import org.opendaylight.ovsdb.openstack.netvirt.sfc.openflow13.INetvirtSfcOF13Provider;
16 import org.opendaylight.ovsdb.utils.mdsal.utils.MdsalUtils;
17 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev150317.AccessLists;
18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev150317.access.lists.Acl;
19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev150317.access.lists.AclKey;
20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev150317.access.lists.acl.AccessListEntries;
21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev150317.access.lists.acl.access.list.entries.Ace;
22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev150317.access.lists.acl.access.list.entries.AceKey;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.sfc.classifier.rev150105.Classifiers;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.sfc.classifier.rev150105.classifiers.Classifier;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.sfc.classifier.rev150105.classifiers.classifier.bridges.Bridge;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.sfc.classifier.rev150105.classifiers.classifier.sffs.Sff;
27 import org.opendaylight.yangtools.concepts.ListenerRegistration;
28 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
29 import org.slf4j.Logger;
30 import org.slf4j.LoggerFactory;
33 * Data tree listener for AccessList.
35 public class NetvirtSfcAclListener extends AbstractDataTreeListener<Acl> {
36 private static final Logger LOG = LoggerFactory.getLogger(NetvirtSfcAclListener.class);
37 private ListenerRegistration<NetvirtSfcAclListener> listenerRegistration;
38 private MdsalUtils dbutils;
41 * {@link NetvirtSfcAclListener} constructor.
42 * @param provider OpenFlow 1.3 Provider
43 * @param db MdSal {@link DataBroker}
45 public NetvirtSfcAclListener(final INetvirtSfcOF13Provider provider, final DataBroker db) {
46 super(provider, Acl.class);
47 Preconditions.checkNotNull(db, "DataBroker can not be null!");
49 dbutils = new MdsalUtils(db);
50 registrationListener(db);
53 private void registrationListener(final DataBroker db) {
54 final DataTreeIdentifier<Acl> treeId =
55 new DataTreeIdentifier<>(LogicalDatastoreType.CONFIGURATION, getIetfAclIid());
57 LOG.info("Registering Data Change Listener for NetvirtSfc AccesList configuration.");
58 listenerRegistration = db.registerDataTreeChangeListener(treeId, this);
59 } catch (final Exception e) {
60 LOG.warn("Netvirt AccesList DataChange listener registration fail!");
61 LOG.debug("Netvirt AccesList DataChange listener registration fail!", e);
62 throw new IllegalStateException("NetvirtSfcAccesListListener startup fail! System needs restart.", e);
68 if (listenerRegistration != null) {
70 listenerRegistration.close();
71 } catch (final Exception e) {
72 LOG.warn("Error while stopping IETF ACL ChangeListener: {}", e.getMessage());
73 LOG.debug("Error while stopping IETF ACL ChangeListener..", e);
75 listenerRegistration = null;
80 public void remove(final InstanceIdentifier<Acl> identifier,
81 final Acl removeDataObj) {
82 Preconditions.checkNotNull(removeDataObj, "Removed object can not be null!");
83 String aclName = removeDataObj.getAclName();
85 Classifiers classifiers = dbutils.read(LogicalDatastoreType.CONFIGURATION, getClassifierIid());
86 if (classifiers != null) {
87 for (Classifier classifier : classifiers.getClassifier()) {
88 if (classifier.getAcl().equalsIgnoreCase(aclName)) {
89 if (classifier.getSffs() != null) {
90 for (Sff sff : classifier.getSffs().getSff()) {
91 provider.removeClassifierRules(sff, removeDataObj);
100 public void update(final InstanceIdentifier<Acl> identifier,
101 final Acl original, final Acl update) {
105 public void add(final InstanceIdentifier<Acl> identifier,
106 final Acl addDataObj) {
107 Preconditions.checkNotNull(addDataObj, "Added object can not be null!");
108 String aclName = addDataObj.getAclName();
109 LOG.debug("Adding accesslist iid = {}, dataObj = {}", identifier, addDataObj);
110 Classifiers classifiers = dbutils.read(LogicalDatastoreType.CONFIGURATION, getClassifierIid());
111 if (classifiers == null) {
112 LOG.debug("add: No Classifiers found");
116 LOG.debug("add: Classifiers: {}", classifiers);
117 for (Classifier classifier : classifiers.getClassifier()) {
118 if (classifier.getAcl().equals(aclName)) {
119 if (classifier.getBridges() != null) {
120 for (Bridge bridge : classifier.getBridges().getBridge()) {
121 provider.addClassifierRules(bridge, addDataObj);
128 private InstanceIdentifier<Classifiers> getClassifierIid() {
129 return InstanceIdentifier.create(Classifiers.class);
132 public InstanceIdentifier<Acl> getIetfAclIid() {
133 return InstanceIdentifier.create(AccessLists.class).child(Acl.class);
137 * Create an {@link Ace} {@link InstanceIdentifier}.
138 * @param aclName is the name of the ACL
139 * @param ruleName is the name of the rule
140 * @return the {@link Ace} {@link InstanceIdentifier}
142 public InstanceIdentifier<Ace> getIetfAclEntryIid(String aclName, String ruleName) {
143 return InstanceIdentifier.create(AccessLists.class).child(Acl.class,
144 new AclKey(aclName)).child(AccessListEntries.class).child(Ace.class,
145 new AceKey(ruleName));