2 * Copyright (c) 2013 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 org.opendaylight.controller.config.yang.messagebus.app.impl.NamespaceToStream;
12 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
13 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
14 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
15 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
16 import org.opendaylight.controller.mdsal.DataStore;
17 import org.opendaylight.controller.mdsal.MdSAL;
18 import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.messagebus.eventsource.rev141202.EventSourceService;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.inventory.rev140108.NetconfNode;
22 import org.opendaylight.yangtools.yang.binding.DataObject;
23 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
24 import org.slf4j.Logger;
25 import org.slf4j.LoggerFactory;
27 import java.util.HashMap;
28 import java.util.List;
31 public final class EventSourceManager implements DataChangeListener {
32 private static final Logger LOGGER = LoggerFactory.getLogger(EventSourceManager.class);
33 private static final InstanceIdentifier<Node> INVENTORY_PATH = InstanceIdentifier.create(Nodes.class)
35 private final DataStore dataStore;
36 private final MdSAL mdSal;
37 private final EventSourceTopology eventSourceTopology;
38 private final Map<String, String> streamMap;
40 public EventSourceManager(DataStore dataStore,
42 EventSourceTopology eventSourceTopology,
43 List<NamespaceToStream> namespaceMapping) {
44 this.dataStore = dataStore;
46 this.eventSourceTopology = eventSourceTopology;
47 this.streamMap = namespaceToStreamMapping(namespaceMapping);
50 private Map namespaceToStreamMapping(List<NamespaceToStream> namespaceMapping) {
51 Map<String, String> streamMap = new HashMap<>(namespaceMapping.size());
53 for (NamespaceToStream nToS : namespaceMapping) {
54 streamMap.put(nToS.getUrnPrefix(), nToS.getStreamName());
60 public void mdsalReady() {
61 dataStore.registerDataChangeListener(LogicalDatastoreType.OPERATIONAL,
64 DataBroker.DataChangeScope.SUBTREE);
66 LOGGER.info("EventSourceManager initialized.");
70 public void onDataChanged(AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> event) {
71 //FIXME: Prevent creating new event source on subsequent changes in inventory, like disconnect.
72 LOGGER.debug("[DataChangeEvent<InstanceIdentifier<?>, DataObject>: {}]", event);
74 Node node = Util.getAffectedNode(event);
75 // we listen on node tree, therefore we should rather throw IllegalStateException when node is null
77 LOGGER.debug("OnDataChanged Event. Node is null.");
80 if ( isNetconfNode(node) == false ) {
81 LOGGER.debug("OnDataChanged Event. Not a Netconf node.");
84 if ( isEventSource(node) == false ) {
85 LOGGER.debug("OnDataChanged Event. Node an EventSource node.");
89 NetconfEventSource netconfEventSource = new NetconfEventSource(mdSal,
90 node.getKey().getId().getValue(),
92 mdSal.addRpcImplementation(node, EventSourceService.class, netconfEventSource);
94 InstanceIdentifier<NetconfNode> nodeInstanceIdentifier =
95 InstanceIdentifier.create(Nodes.class)
96 .child(Node.class, node.getKey())
97 .augmentation(NetconfNode.class);
99 dataStore.registerDataChangeListener(LogicalDatastoreType.OPERATIONAL,
100 nodeInstanceIdentifier,
102 DataBroker.DataChangeScope.SUBTREE);
104 eventSourceTopology.insert(node);
107 private boolean isNetconfNode(Node node) {
108 return node.getAugmentation(NetconfNode.class) != null ;
111 public boolean isEventSource(Node node) {
112 NetconfNode netconfNode = node.getAugmentation(NetconfNode.class);
114 return isEventSource(netconfNode);
117 private boolean isEventSource(NetconfNode node) {
118 for (String capability : node.getInitialCapability()) {
119 if(capability.startsWith("urn:ietf:params:xml:ns:netconf:notification")) {