2 * Copyright (c) 2015 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
9 package org.opendaylight.controller.messagebus.app.impl;
11 import com.google.common.base.Optional;
13 import java.util.HashMap;
14 import java.util.List;
16 import java.util.concurrent.ConcurrentHashMap;
18 import org.opendaylight.controller.config.yang.messagebus.app.impl.NamespaceToStream;
19 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
20 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
21 import org.opendaylight.controller.md.sal.binding.api.MountPoint;
22 import org.opendaylight.controller.md.sal.binding.api.MountPointService;
23 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
24 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
25 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
26 import org.opendaylight.controller.md.sal.dom.api.DOMMountPoint;
27 import org.opendaylight.controller.md.sal.dom.api.DOMMountPointService;
28 import org.opendaylight.controller.md.sal.dom.api.DOMNotificationPublishService;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.NetconfNode;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.NetconfNodeFields.ConnectionStatus;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.network.topology.topology.topology.types.TopologyNetconf;
32 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
33 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
34 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TopologyId;
35 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
36 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
37 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
38 import org.opendaylight.yangtools.concepts.ListenerRegistration;
39 import org.opendaylight.yangtools.yang.binding.DataObject;
40 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
41 import org.opendaylight.yangtools.yang.common.QName;
42 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
43 import org.slf4j.Logger;
44 import org.slf4j.LoggerFactory;
46 public final class NetconfEventSourceManager implements DataChangeListener, AutoCloseable {
48 private static final Logger LOGGER = LoggerFactory.getLogger(NetconfEventSourceManager.class);
49 private static final TopologyKey NETCONF_TOPOLOGY_KEY = new TopologyKey(new TopologyId(TopologyNetconf.QNAME.getLocalName()));
50 private static final InstanceIdentifier<Node> NETCONF_DEVICE_PATH = InstanceIdentifier.create(NetworkTopology.class)
51 .child(Topology.class, NETCONF_TOPOLOGY_KEY)
54 private static final YangInstanceIdentifier NETCONF_DEVICE_DOM_PATH = YangInstanceIdentifier.builder()
55 .node(NetworkTopology.QNAME)
57 .nodeWithKey(Topology.QNAME, QName.create(Topology.QNAME, "topology-id"),TopologyNetconf.QNAME.getLocalName())
60 private static final QName NODE_ID_QNAME = QName.create(Node.QNAME,"node-id");
63 private final EventSourceTopology eventSourceTopology;
64 private final Map<String, String> streamMap;
66 private final ConcurrentHashMap<InstanceIdentifier<?>, NetconfEventSource> netconfSources = new ConcurrentHashMap<>();
67 private final ListenerRegistration<DataChangeListener> listenerReg;
68 private final DOMNotificationPublishService publishService;
69 private final DOMMountPointService domMounts;
70 private final MountPointService bindingMounts;
72 public NetconfEventSourceManager(final DataBroker dataStore,
73 final DOMNotificationPublishService domPublish,
74 final DOMMountPointService domMount,
75 final MountPointService bindingMount,
76 final EventSourceTopology eventSourceTopology,
77 final List<NamespaceToStream> namespaceMapping) {
79 listenerReg = dataStore.registerDataChangeListener(LogicalDatastoreType.OPERATIONAL, NETCONF_DEVICE_PATH, this, DataChangeScope.SUBTREE);
80 this.eventSourceTopology = eventSourceTopology;
81 this.streamMap = namespaceToStreamMapping(namespaceMapping);
82 this.domMounts = domMount;
83 this.bindingMounts = bindingMount;
84 this.publishService = domPublish;
85 LOGGER.info("EventSourceManager initialized.");
88 private Map<String,String> namespaceToStreamMapping(final List<NamespaceToStream> namespaceMapping) {
89 final Map<String, String> streamMap = new HashMap<>(namespaceMapping.size());
91 for (final NamespaceToStream nToS : namespaceMapping) {
92 streamMap.put(nToS.getUrnPrefix(), nToS.getStreamName());
99 public void onDataChanged(final AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> event) {
100 //FIXME: Prevent creating new event source on subsequent changes in inventory, like disconnect.
101 LOGGER.debug("[DataChangeEvent<InstanceIdentifier<?>, DataObject>: {}]", event);
102 for (final Map.Entry<InstanceIdentifier<?>, DataObject> changeEntry : event.getCreatedData().entrySet()) {
103 if (changeEntry.getValue() instanceof Node) {
104 nodeUpdated(changeEntry.getKey(),(Node) changeEntry.getValue());
109 for (final Map.Entry<InstanceIdentifier<?>, DataObject> changeEntry : event.getUpdatedData().entrySet()) {
110 if (changeEntry.getValue() instanceof Node) {
111 nodeUpdated(changeEntry.getKey(),(Node) changeEntry.getValue());
118 private void nodeUpdated(final InstanceIdentifier<?> key, final Node node) {
120 // we listen on node tree, therefore we should rather throw IllegalStateException when node is null
121 if ( node == null ) {
122 LOGGER.debug("OnDataChanged Event. Node is null.");
125 if ( isNetconfNode(node) == false ) {
126 LOGGER.debug("OnDataChanged Event. Not a Netconf node.");
129 if ( isEventSource(node) == false ) {
130 LOGGER.debug("OnDataChanged Event. Node an EventSource node.");
133 if(node.getAugmentation(NetconfNode.class).getConnectionStatus() != ConnectionStatus.Connected ) {
137 if(!netconfSources.containsKey(key)) {
138 createEventSource(key,node);
142 private void createEventSource(final InstanceIdentifier<?> key, final Node node) {
143 final Optional<DOMMountPoint> netconfMount = domMounts.getMountPoint(domMountPath(node.getNodeId()));
144 final Optional<MountPoint> bindingMount = bindingMounts.getMountPoint(key);
146 if(netconfMount.isPresent() && bindingMount.isPresent()) {
147 final String nodeId = node.getNodeId().getValue();
148 final NetconfEventSource netconfEventSource = new NetconfEventSource(nodeId, streamMap, netconfMount.get(), publishService, bindingMount.get());
149 eventSourceTopology.register(node,netconfEventSource);
150 netconfSources.putIfAbsent(key, netconfEventSource);
154 private YangInstanceIdentifier domMountPath(final NodeId nodeId) {
155 return YangInstanceIdentifier.builder(NETCONF_DEVICE_DOM_PATH).nodeWithKey(Node.QNAME, NODE_ID_QNAME, nodeId.getValue()).build();
158 private boolean isNetconfNode(final Node node) {
159 return node.getAugmentation(NetconfNode.class) != null ;
162 public boolean isEventSource(final Node node) {
163 final NetconfNode netconfNode = node.getAugmentation(NetconfNode.class);
165 return isEventSource(netconfNode);
168 private boolean isEventSource(final NetconfNode node) {
169 for (final String capability : node.getAvailableCapabilities().getAvailableCapability()) {
170 if(capability.startsWith("(urn:ietf:params:xml:ns:netconf:notification")) {
179 public void close() {