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

   1 /*
   2  * Copyright (C) 2013 Red Hat, Inc.
   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  * Authors : Madhu Venugopal, Brent Salisbury, Dave Tucker
   9  */
  10 package org.opendaylight.ovsdb.openstack.netvirt.impl;
  11
  12 import java.util.HashMap;
  13 import java.util.Map;
  14
  15 import org.opendaylight.controller.sal.core.Node;
  16 import org.opendaylight.ovsdb.openstack.netvirt.api.ConfigurationService;
  17 import org.opendaylight.ovsdb.openstack.netvirt.api.Constants;
  18 import org.opendaylight.ovsdb.openstack.netvirt.api.NetworkingProvider;
  19 import org.opendaylight.ovsdb.openstack.netvirt.api.NetworkingProviderManager;
  20 import org.osgi.framework.ServiceReference;
  21 import org.slf4j.Logger;
  22 import org.slf4j.LoggerFactory;
  23
  24 import com.google.common.base.Predicate;
  25 import com.google.common.collect.Iterables;
  26 import com.google.common.collect.Maps;
  27
  28 public class ProviderNetworkManagerImpl implements NetworkingProviderManager {
  29
  30     static final Logger logger = LoggerFactory.getLogger(ProviderNetworkManagerImpl.class);
  31     // The provider for each of these services is resolved by the OSGi Service Manager
  32     private volatile ConfigurationService configurationService;
  33
  34     private HashMap<Long, ProviderEntry> providers = Maps.newHashMap();
  35     private HashMap<Node, NetworkingProvider> nodeToProviderMapping = Maps.newHashMap();
  36
  37     @Override
  38     public NetworkingProvider getProvider(Node node) {
  39         if (nodeToProviderMapping.get(node) != null) {
  40             return nodeToProviderMapping.get(node);
  41         }
  42
  43         final String targetVersion = Constants.OPENFLOW13;
  44         /*
  45          * Since we have hard depedencies on OpenFlow1.3 to get any of the services supported, we are
  46          * Hardcoding the Openflow13 as the only version that we are interested in
  47          */
  48         // final String targetVersion = configurationService.getOpenflowVersion(node);
  49
  50         Predicate<ProviderEntry> providerEntryPredicate = new Predicate<ProviderEntry>() {
  51             @Override
  52             public boolean apply(ProviderEntry providerEntry) {
  53                 //ToDo: This should match on southboundProtocol and providerType too
  54                 return providerEntry.getProperties().get(Constants.OPENFLOW_VERSION_PROPERTY).equals(targetVersion);
  55             }
  56         };
  57
  58         Iterable<ProviderEntry> matchingProviders = Iterables.filter(providers.values(), providerEntryPredicate);
  59         if (!matchingProviders.iterator().hasNext()) {
  60             logger.error("No providers matching {} found", targetVersion);
  61         }
  62
  63         // Return the first match as only have one matching provider today
  64         // ToDo: Tie-breaking logic
  65         NetworkingProvider provider = matchingProviders.iterator().next().getProvider();
  66         nodeToProviderMapping.put(node, provider);
  67         return provider;
  68     }
  69
  70     public void providerAdded(final ServiceReference ref, final NetworkingProvider provider){
  71         Map <String, String> properties = Maps.newHashMap();
  72         Long pid = (Long) ref.getProperty(org.osgi.framework.Constants.SERVICE_ID);
  73         properties.put(Constants.SOUTHBOUND_PROTOCOL_PROPERTY, (String) ref.getProperty(Constants.SOUTHBOUND_PROTOCOL_PROPERTY));
  74         properties.put(Constants.OPENFLOW_VERSION_PROPERTY, (String) ref.getProperty(Constants.OPENFLOW_VERSION_PROPERTY));
  75         properties.put(Constants.PROVIDER_TYPE_PROPERTY, (String) ref.getProperty(Constants.PROVIDER_TYPE_PROPERTY));
  76         providers.put(pid, new ProviderEntry(provider, properties));
  77         logger.info("Neutron Networking Provider Registered: {}, with {} and pid={}", provider.getClass().getName(), properties.toString(), pid);
  78     }
  79
  80     public void providerRemoved(final ServiceReference ref){
  81         Long pid = (Long)ref.getProperty(org.osgi.framework.Constants.SERVICE_ID);
  82         providers.remove(pid);
  83         logger.info("Neutron Networking Provider Removed: {}", pid);
  84     }
  85
  86     private class ProviderEntry {
  87         NetworkingProvider provider;
  88         Map<String, String> properties;
  89
  90         ProviderEntry(NetworkingProvider provider, Map<String, String> properties) {
  91             this.provider = provider;
  92             this.properties = properties;
  93         }
  94
  95         public NetworkingProvider getProvider() {
  96             return provider;
  97         }
  98
  99         public Map<String, String> getProperties() {
 100             return properties;
 101         }
 102     }
 103
 104 }