--- /dev/null
+/*
+ * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+
+package org.opendaylight.controller.messagebus.eventsources.netconf;
+
+
+import com.google.common.base.Optional;
+import com.google.common.base.Preconditions;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import org.opendaylight.controller.config.yang.messagebus.app.impl.NamespaceToStream;
+import org.opendaylight.controller.md.sal.binding.api.DataBroker;
+import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
+import org.opendaylight.controller.md.sal.binding.api.MountPoint;
+import org.opendaylight.controller.md.sal.binding.api.MountPointService;
+import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
+import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
+import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
+import org.opendaylight.controller.md.sal.dom.api.DOMMountPoint;
+import org.opendaylight.controller.md.sal.dom.api.DOMMountPointService;
+import org.opendaylight.controller.md.sal.dom.api.DOMNotificationPublishService;
+import org.opendaylight.controller.messagebus.spi.EventSourceRegistration;
+import org.opendaylight.controller.messagebus.spi.EventSourceRegistry;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.NetconfNode;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.NetconfNodeFields.ConnectionStatus;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.network.topology.topology.topology.types.TopologyNetconf;
+import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
+import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
+import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TopologyId;
+import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
+import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
+import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
+import org.opendaylight.yangtools.concepts.ListenerRegistration;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.opendaylight.yangtools.yang.common.QName;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public final class NetconfEventSourceManager implements DataChangeListener, AutoCloseable {
+
+ private static final Logger LOGGER = LoggerFactory.getLogger(NetconfEventSourceManager.class);
+ private static final TopologyKey NETCONF_TOPOLOGY_KEY = new TopologyKey(new TopologyId(TopologyNetconf.QNAME.getLocalName()));
+ private static final InstanceIdentifier<Node> NETCONF_DEVICE_PATH = InstanceIdentifier.create(NetworkTopology.class)
+ .child(Topology.class, NETCONF_TOPOLOGY_KEY)
+ .child(Node.class);
+
+ private static final YangInstanceIdentifier NETCONF_DEVICE_DOM_PATH = YangInstanceIdentifier.builder()
+ .node(NetworkTopology.QNAME)
+ .node(Topology.QNAME)
+ .nodeWithKey(Topology.QNAME, QName.create(Topology.QNAME, "topology-id"),TopologyNetconf.QNAME.getLocalName())
+ .node(Node.QNAME)
+ .build();
+ private static final QName NODE_ID_QNAME = QName.create(Node.QNAME,"node-id");
+
+ private final Map<String, String> streamMap;
+ private final ConcurrentHashMap<InstanceIdentifier<?>, EventSourceRegistration<NetconfEventSource>> eventSourceRegistration = new ConcurrentHashMap<>();
+ private final DOMNotificationPublishService publishService;
+ private final DOMMountPointService domMounts;
+ private final MountPointService bindingMounts;
+ private ListenerRegistration<DataChangeListener> listenerRegistration;
+ private final EventSourceRegistry eventSourceRegistry;
+
+ public static NetconfEventSourceManager create(final DataBroker dataBroker,
+ final DOMNotificationPublishService domPublish,
+ final DOMMountPointService domMount,
+ final MountPointService bindingMount,
+ final EventSourceRegistry eventSourceRegistry,
+ final List<NamespaceToStream> namespaceMapping){
+
+ final NetconfEventSourceManager eventSourceManager =
+ new NetconfEventSourceManager(domPublish, domMount, bindingMount, eventSourceRegistry, namespaceMapping);
+
+ eventSourceManager.initialize(dataBroker);
+
+ return eventSourceManager;
+
+ }
+
+ private NetconfEventSourceManager(final DOMNotificationPublishService domPublish,
+ final DOMMountPointService domMount,
+ final MountPointService bindingMount,
+ final EventSourceRegistry eventSourceRegistry,
+ final List<NamespaceToStream> namespaceMapping) {
+
+ Preconditions.checkNotNull(domPublish);
+ Preconditions.checkNotNull(domMount);
+ Preconditions.checkNotNull(bindingMount);
+ Preconditions.checkNotNull(eventSourceRegistry);
+ Preconditions.checkNotNull(namespaceMapping);
+ this.streamMap = namespaceToStreamMapping(namespaceMapping);
+ this.domMounts = domMount;
+ this.bindingMounts = bindingMount;
+ this.publishService = domPublish;
+ this.eventSourceRegistry = eventSourceRegistry;
+ }
+
+ private void initialize(final DataBroker dataBroker){
+ Preconditions.checkNotNull(dataBroker);
+ listenerRegistration = dataBroker.registerDataChangeListener(LogicalDatastoreType.OPERATIONAL, NETCONF_DEVICE_PATH, this, DataChangeScope.SUBTREE);
+ LOGGER.info("NetconfEventSourceManager initialized.");
+ }
+
+ private Map<String,String> namespaceToStreamMapping(final List<NamespaceToStream> namespaceMapping) {
+ final Map<String, String> streamMap = new HashMap<>(namespaceMapping.size());
+
+ for (final NamespaceToStream nToS : namespaceMapping) {
+ streamMap.put(nToS.getUrnPrefix(), nToS.getStreamName());
+ }
+
+ return streamMap;
+ }
+
+ @Override
+ public void onDataChanged(final AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> event) {
+
+ LOGGER.debug("[DataChangeEvent<InstanceIdentifier<?>, DataObject>: {}]", event);
+ for (final Map.Entry<InstanceIdentifier<?>, DataObject> changeEntry : event.getCreatedData().entrySet()) {
+ if (changeEntry.getValue() instanceof Node) {
+ nodeUpdated(changeEntry.getKey(),(Node) changeEntry.getValue());
+ }
+ }
+
+ for (final Map.Entry<InstanceIdentifier<?>, DataObject> changeEntry : event.getUpdatedData().entrySet()) {
+ if (changeEntry.getValue() instanceof Node) {
+ nodeUpdated(changeEntry.getKey(),(Node) changeEntry.getValue());
+ }
+ }
+
+ }
+
+ private void nodeUpdated(final InstanceIdentifier<?> key, final Node node) {
+
+ // we listen on node tree, therefore we should rather throw IllegalStateException when node is null
+ if ( node == null ) {
+ throw new IllegalStateException("Node is null");
+ }
+ if ( isNetconfNode(node) == false ) {
+ LOGGER.debug("OnDataChanged Event. Not a Netconf node.");
+ return;
+ }
+ if ( isEventSource(node) == false ) {
+ LOGGER.debug("OnDataChanged Event. Node an EventSource node.");
+ return;
+ }
+ if(node.getAugmentation(NetconfNode.class).getConnectionStatus() != ConnectionStatus.Connected ) {
+ return;
+ }
+
+ if(!eventSourceRegistration.containsKey(key)) {
+ createEventSource(key,node);
+ }
+ }
+
+ private void createEventSource(final InstanceIdentifier<?> key, final Node node) {
+ final Optional<DOMMountPoint> netconfMount = domMounts.getMountPoint(domMountPath(node.getNodeId()));
+ final Optional<MountPoint> bindingMount = bindingMounts.getMountPoint(key);
+
+ if(netconfMount.isPresent() && bindingMount.isPresent()) {
+
+ final NetconfEventSource netconfEventSource =
+ new NetconfEventSource(node, streamMap, netconfMount.get(), publishService, bindingMount.get());
+ final EventSourceRegistration<NetconfEventSource> registration = eventSourceRegistry.registerEventSource(netconfEventSource);
+ eventSourceRegistration.putIfAbsent(key, registration);
+
+ }
+ }
+
+ private YangInstanceIdentifier domMountPath(final NodeId nodeId) {
+ return YangInstanceIdentifier.builder(NETCONF_DEVICE_DOM_PATH).nodeWithKey(Node.QNAME, NODE_ID_QNAME, nodeId.getValue()).build();
+ }
+
+ private boolean isNetconfNode(final Node node) {
+ return node.getAugmentation(NetconfNode.class) != null ;
+ }
+
+ private boolean isEventSource(final Node node) {
+
+ final NetconfNode netconfNode = node.getAugmentation(NetconfNode.class);
+ return isEventSource(netconfNode);
+
+ }
+
+ private boolean isEventSource(final NetconfNode node) {
+ if (node.getAvailableCapabilities() == null) {
+ return false;
+ }
+ final List<String> capabilities = node.getAvailableCapabilities().getAvailableCapability();
+ if(capabilities == null) {
+ return false;
+ }
+ for (final String capability : node.getAvailableCapabilities().getAvailableCapability()) {
+ if(capability.startsWith("(urn:ietf:params:xml:ns:netconf:notification")) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ @Override
+ public void close() {
+ for(final EventSourceRegistration<NetconfEventSource> reg : eventSourceRegistration.values()){
+ reg.close();
+ }
+ listenerRegistration.close();
+ }
+
+}
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Code Review / controller.git / blobdiff