openstack/net-virt/src/main/java/org/opendaylight/ovsdb/openstack/netvirt/impl/ProviderNetworkManagerImpl.java

   1 /*
   2  * Copyright (c) 2013, 2015 Red Hat, Inc. and others. All rights reserved.
   3  *
   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
   7  */
   8
   9 package org.opendaylight.ovsdb.openstack.netvirt.impl;
  10
  11 import java.util.Map;
  12
  13 import org.opendaylight.ovsdb.openstack.netvirt.ConfigInterface;
  14 import org.opendaylight.ovsdb.openstack.netvirt.api.Constants;
  15 import org.opendaylight.ovsdb.openstack.netvirt.api.NetworkingProvider;
  16 import org.opendaylight.ovsdb.openstack.netvirt.api.NetworkingProviderManager;
  17 import org.opendaylight.ovsdb.openstack.netvirt.api.OvsdbInventoryService;
  18 import org.opendaylight.ovsdb.utils.servicehelper.ServiceHelper;
  19 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  20
  21 import org.osgi.framework.ServiceReference;
  22 import org.slf4j.Logger;
  23 import org.slf4j.LoggerFactory;
  24
  25 import com.google.common.base.Predicate;
  26 import com.google.common.collect.Iterables;
  27 import com.google.common.collect.Maps;
  28
  29 public class ProviderNetworkManagerImpl implements ConfigInterface, NetworkingProviderManager {
  30     private static final Logger LOG = LoggerFactory.getLogger(ProviderNetworkManagerImpl.class);
  31     private Map<Long, ProviderEntry> providers = Maps.newHashMap();
  32     private Map<Node, NetworkingProvider> nodeToProviderMapping = Maps.newHashMap();
  33     private volatile OvsdbInventoryService ovsdbInventoryService;
  34
  35     @Override
  36     public NetworkingProvider getProvider(Node node) {
  37         if (nodeToProviderMapping.get(node) != null) {
  38             return nodeToProviderMapping.get(node);
  39         }
  40
  41         final String targetVersion = Constants.OPENFLOW13;
  42         Predicate<ProviderEntry> providerEntryPredicate = new Predicate<ProviderEntry>() {
  43             @Override
  44             public boolean apply(ProviderEntry providerEntry) {
  45                 //ToDo: This should match on southboundProtocol and providerType too
  46                 return providerEntry.getProperties().get(Constants.OPENFLOW_VERSION_PROPERTY).equals(targetVersion);
  47             }
  48         };
  49
  50         Iterable<ProviderEntry> matchingProviders = Iterables.filter(providers.values(), providerEntryPredicate);
  51         if (!matchingProviders.iterator().hasNext()) {
  52             LOG.error("No providers matching {} found", targetVersion);
  53         }
  54
  55         // Return the first match as only have one matching provider today
  56         // ToDo: Tie-breaking logic
  57         NetworkingProvider provider = matchingProviders.iterator().next().getProvider();
  58         nodeToProviderMapping.put(node, provider);
  59         return provider;
  60     }
  61
  62     public void providerAdded(final ServiceReference ref, final NetworkingProvider provider){
  63         Map <String, String> properties = Maps.newHashMap();
  64         Long pid = (Long) ref.getProperty(org.osgi.framework.Constants.SERVICE_ID);
  65         properties.put(Constants.SOUTHBOUND_PROTOCOL_PROPERTY,
  66                 (String) ref.getProperty(Constants.SOUTHBOUND_PROTOCOL_PROPERTY));
  67         properties.put(Constants.OPENFLOW_VERSION_PROPERTY,
  68                 (String) ref.getProperty(Constants.OPENFLOW_VERSION_PROPERTY));
  69         properties.put(Constants.PROVIDER_TYPE_PROPERTY, (String) ref.getProperty(Constants.PROVIDER_TYPE_PROPERTY));
  70         providers.put(pid, new ProviderEntry(provider, properties));
  71         LOG.info("Neutron Networking Provider Registered: {}, with {} and pid={}",
  72                 provider.getClass().getName(), properties.toString(), pid);
  73
  74         ovsdbInventoryService.providersReady();
  75     }
  76
  77     public void providerRemoved(final ServiceReference ref){
  78         Long pid = (Long)ref.getProperty(org.osgi.framework.Constants.SERVICE_ID);
  79         providers.remove(pid);
  80         LOG.info("Neutron Networking Provider Removed: {}", pid);
  81     }
  82
  83     @Override
  84     public void setDependencies(ServiceReference serviceReference) {
  85         ovsdbInventoryService =
  86                 (OvsdbInventoryService) ServiceHelper.getGlobalInstance(OvsdbInventoryService.class, this);
  87     }
  88
  89     @Override
  90     public void setDependencies(Object impl) {
  91
  92     }
  93
  94     private class ProviderEntry {
  95         NetworkingProvider provider;
  96         Map<String, String> properties;
  97
  98         ProviderEntry(NetworkingProvider provider, Map<String, String> properties) {
  99             this.provider = provider;
 100             this.properties = properties;
 101         }
 102
 103         public NetworkingProvider getProvider() {
 104             return provider;
 105         }
 106
 107         public Map<String, String> getProperties() {
 108             return properties;
 109         }
 110     }
 111
 112 }