2 * Copyright (c) 2015 Red Hat, 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
8 package org.opendaylight.ovsdb.openstack.netvirt.impl;
10 import java.util.List;
12 import java.util.concurrent.ConcurrentHashMap;
14 import org.opendaylight.ovsdb.openstack.netvirt.AbstractEvent;
15 import org.opendaylight.ovsdb.openstack.netvirt.AbstractHandler;
16 import org.opendaylight.ovsdb.openstack.netvirt.ConfigInterface;
17 import org.opendaylight.ovsdb.openstack.netvirt.NodeCacheManagerEvent;
18 import org.opendaylight.ovsdb.openstack.netvirt.api.Action;
19 import org.opendaylight.ovsdb.openstack.netvirt.api.EventDispatcher;
20 import org.opendaylight.ovsdb.openstack.netvirt.api.NodeCacheListener;
21 import org.opendaylight.ovsdb.openstack.netvirt.api.NodeCacheManager;
22 import org.opendaylight.ovsdb.openstack.netvirt.api.Southbound;
23 import org.opendaylight.ovsdb.utils.servicehelper.ServiceHelper;
24 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
25 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
26 import org.osgi.framework.BundleContext;
27 import org.osgi.framework.ServiceReference;
28 import org.slf4j.Logger;
29 import org.slf4j.LoggerFactory;
31 import com.google.common.collect.Lists;
32 import com.google.common.collect.Maps;
35 * @author Flavio Fernandes (ffernand@redhat.com)
36 * @author Sam Hague (shague@redhat.com)
38 public class NodeCacheManagerImpl extends AbstractHandler implements NodeCacheManager, ConfigInterface {
39 private static final Logger logger = LoggerFactory.getLogger(NodeCacheManagerImpl.class);
40 private final Object nodeCacheLock = new Object();
41 private Map<NodeId, Node> nodeCache = new ConcurrentHashMap<>();
42 private Map<Long, NodeCacheListener> handlers = Maps.newHashMap();
43 private volatile Southbound southbound;
46 public void nodeAdded(Node node) {
47 logger.debug("nodeAdded: {}", node);
48 enqueueEvent(new NodeCacheManagerEvent(node, Action.UPDATE));
52 public void nodeRemoved(Node node) {
53 logger.debug("nodeRemoved: {}", node);
54 enqueueEvent(new NodeCacheManagerEvent(node, Action.DELETE));
58 // might need to break this into two different events
59 // notifyOvsdbNode, notifyBridgeNode or just make sure the
60 // classes implementing the interface check for ovsdbNode or bridgeNode
61 private void processNodeUpdate(Node node) {
62 Action action = Action.UPDATE;
64 NodeId nodeId = node.getNodeId();
65 if (nodeCache.get(nodeId) == null) {
68 nodeCache.put(nodeId, node);
70 logger.debug("processNodeUpdate: {} Node type {} {}: {}",
72 southbound.getBridge(node) != null ? "BridgeNode" : "OvsdbNode",
73 action == Action.ADD ? "ADD" : "UPDATE",
76 for (NodeCacheListener handler : handlers.values()) {
78 handler.notifyNode(node, action);
79 } catch (Exception e) {
80 logger.error("Failed notifying node add event", e);
83 logger.debug("processNodeUpdate returns");
86 private void processNodeRemoved(Node node) {
87 nodeCache.remove(node.getNodeId());
88 for (NodeCacheListener handler : handlers.values()) {
90 handler.notifyNode(node, Action.DELETE);
91 } catch (Exception e) {
92 logger.error("Failed notifying node remove event", e);
95 logger.warn("processNodeRemoved returns");
101 * @param abstractEvent the {@link org.opendaylight.ovsdb.openstack.netvirt.AbstractEvent} event to be handled.
102 * @see org.opendaylight.ovsdb.openstack.netvirt.api.EventDispatcher
105 public void processEvent(AbstractEvent abstractEvent) {
106 if (!(abstractEvent instanceof NodeCacheManagerEvent)) {
107 logger.error("Unable to process abstract event " + abstractEvent);
110 NodeCacheManagerEvent ev = (NodeCacheManagerEvent) abstractEvent;
111 logger.debug("NodeCacheManagerImpl: dequeue: {}", ev);
112 switch (ev.getAction()) {
114 processNodeRemoved(ev.getNode());
117 processNodeUpdate(ev.getNode());
120 logger.warn("Unable to process event action " + ev.getAction());
125 public void cacheListenerAdded(final ServiceReference ref, NodeCacheListener handler){
126 Long pid = (Long) ref.getProperty(org.osgi.framework.Constants.SERVICE_ID);
127 handlers.put(pid, handler);
128 logger.info("Node cache listener registered, pid {} {}", pid, handler.getClass().getName());
131 public void cacheListenerRemoved(final ServiceReference ref){
132 Long pid = (Long) ref.getProperty(org.osgi.framework.Constants.SERVICE_ID);
133 handlers.remove(pid);
134 logger.debug("Node cache listener unregistered, pid {}", pid);
138 public Map<NodeId,Node> getOvsdbNodes() {
139 Map<NodeId,Node> ovsdbNodesMap = new ConcurrentHashMap<NodeId,Node>();
140 for (Map.Entry<NodeId, Node> ovsdbNodeEntry : nodeCache.entrySet()) {
141 if (southbound.extractOvsdbNode(ovsdbNodeEntry.getValue()) != null) {
142 ovsdbNodesMap.put(ovsdbNodeEntry.getKey(), ovsdbNodeEntry.getValue());
145 return ovsdbNodesMap;
149 public List<Node> getBridgeNodes() {
150 List<Node> nodes = Lists.newArrayList();
151 for (Node node : nodeCache.values()) {
152 if (southbound.getBridge(node) != null) {
160 public List<Node> getNodes() {
161 List<Node> nodes = Lists.newArrayList();
162 for (Node node : nodeCache.values()) {
169 public void setDependencies(BundleContext bundleContext, ServiceReference serviceReference) {
171 (Southbound) ServiceHelper.getGlobalInstance(Southbound.class, this);
173 (EventDispatcher) ServiceHelper.getGlobalInstance(EventDispatcher.class, this);
174 eventDispatcher.eventHandlerAdded(
175 bundleContext.getServiceReference(NodeCacheManager.class.getName()), this);
179 public void setDependencies(Object impl) {}