openstack/net-virt/src/main/java/org/opendaylight/ovsdb/openstack/netvirt/SubnetHandler.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;
  10
  11 import java.net.HttpURLConnection;
  12
  13 import org.opendaylight.neutron.spi.INeutronSubnetAware;
  14 import org.opendaylight.neutron.spi.NeutronSubnet;
  15 import org.opendaylight.ovsdb.openstack.netvirt.api.Action;
  16 import org.opendaylight.ovsdb.openstack.netvirt.api.EventDispatcher;
  17 import org.opendaylight.ovsdb.openstack.netvirt.impl.NeutronL3Adapter;
  18 import org.opendaylight.ovsdb.utils.servicehelper.ServiceHelper;
  19 import org.osgi.framework.ServiceReference;
  20 import org.slf4j.Logger;
  21 import org.slf4j.LoggerFactory;
  22
  23 import com.google.common.base.Preconditions;
  24
  25 public class SubnetHandler extends AbstractHandler implements INeutronSubnetAware, ConfigInterface {
  26
  27     private static final Logger LOG = LoggerFactory.getLogger(SubnetHandler.class);
  28
  29     // The implementation for each of these services is resolved by the OSGi Service Manager
  30     private volatile NeutronL3Adapter neutronL3Adapter;
  31
  32     @Override
  33     public int canCreateSubnet(NeutronSubnet subnet) {
  34         return HttpURLConnection.HTTP_OK;
  35     }
  36
  37     @Override
  38     public void neutronSubnetCreated(NeutronSubnet subnet) {
  39         enqueueEvent(new NorthboundEvent(subnet, Action.ADD));
  40     }
  41
  42     @Override
  43     public int canUpdateSubnet(NeutronSubnet delta, NeutronSubnet original) {
  44         return HttpURLConnection.HTTP_OK;
  45     }
  46
  47     @Override
  48     public void neutronSubnetUpdated(NeutronSubnet subnet) {
  49         enqueueEvent(new NorthboundEvent(subnet, Action.UPDATE));
  50     }
  51
  52     @Override
  53     public int canDeleteSubnet(NeutronSubnet subnet) {
  54         return HttpURLConnection.HTTP_OK;
  55     }
  56
  57     @Override
  58     public void neutronSubnetDeleted(NeutronSubnet subnet) {
  59         enqueueEvent(new NorthboundEvent(subnet, Action.DELETE));
  60     }
  61
  62     /**
  63      * Process the event.
  64      *
  65      * @param abstractEvent the {@link org.opendaylight.ovsdb.openstack.netvirt.AbstractEvent} event to be handled.
  66      * @see org.opendaylight.ovsdb.openstack.netvirt.api.EventDispatcher
  67      */
  68     @Override
  69     public void processEvent(AbstractEvent abstractEvent) {
  70         if (!(abstractEvent instanceof NorthboundEvent)) {
  71             LOG.error("Unable to process abstract event {}", abstractEvent);
  72             return;
  73         }
  74         NorthboundEvent ev = (NorthboundEvent) abstractEvent;
  75         switch (ev.getAction()) {
  76             case ADD:
  77                 // fall through
  78             case DELETE:
  79                 // fall through
  80             case UPDATE:
  81                 Preconditions.checkNotNull(neutronL3Adapter);
  82                 neutronL3Adapter.handleNeutronSubnetEvent(ev.getSubnet(), ev.getAction());
  83                 break;
  84             default:
  85                 LOG.warn("Unable to process event action {}", ev.getAction());
  86                 break;
  87         }
  88     }
  89
  90     @Override
  91     public void setDependencies(ServiceReference serviceReference) {
  92         neutronL3Adapter =
  93                 (NeutronL3Adapter) ServiceHelper.getGlobalInstance(NeutronL3Adapter.class, this);
  94         eventDispatcher =
  95                 (EventDispatcher) ServiceHelper.getGlobalInstance(EventDispatcher.class, this);
  96         eventDispatcher.eventHandlerAdded(serviceReference, this);
  97     }
  98
  99     @Override
 100     public void setDependencies(Object impl) {
 101
 102     }
 103 }