openstack/net-virt/src/main/java/org/opendaylight/ovsdb/openstack/netvirt/SubnetHandler.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
   9  */
  10
  11 package org.opendaylight.ovsdb.openstack.netvirt;
  12
  13 import java.net.HttpURLConnection;
  14
  15 import org.opendaylight.neutron.spi.INeutronSubnetAware;
  16 import org.opendaylight.neutron.spi.NeutronSubnet;
  17 import org.opendaylight.ovsdb.openstack.netvirt.api.Action;
  18 import org.opendaylight.ovsdb.openstack.netvirt.api.EventDispatcher;
  19 import org.opendaylight.ovsdb.openstack.netvirt.impl.NeutronL3Adapter;
  20 import org.opendaylight.ovsdb.utils.servicehelper.ServiceHelper;
  21 import org.osgi.framework.BundleContext;
  22 import org.osgi.framework.ServiceReference;
  23 import org.slf4j.Logger;
  24 import org.slf4j.LoggerFactory;
  25
  26 import com.google.common.base.Preconditions;
  27
  28 public class SubnetHandler extends AbstractHandler implements INeutronSubnetAware, ConfigInterface {
  29
  30     static final Logger logger = LoggerFactory.getLogger(SubnetHandler.class);
  31
  32     // The implementation for each of these services is resolved by the OSGi Service Manager
  33     private volatile NeutronL3Adapter neutronL3Adapter;
  34
  35     @Override
  36     public int canCreateSubnet(NeutronSubnet subnet) {
  37         return HttpURLConnection.HTTP_OK;
  38     }
  39
  40     @Override
  41     public void neutronSubnetCreated(NeutronSubnet subnet) {
  42         enqueueEvent(new NorthboundEvent(subnet, Action.ADD));
  43     }
  44
  45     @Override
  46     public int canUpdateSubnet(NeutronSubnet delta, NeutronSubnet original) {
  47         return HttpURLConnection.HTTP_OK;
  48     }
  49
  50     @Override
  51     public void neutronSubnetUpdated(NeutronSubnet subnet) {
  52         enqueueEvent(new NorthboundEvent(subnet, Action.UPDATE));
  53     }
  54
  55     @Override
  56     public int canDeleteSubnet(NeutronSubnet subnet) {
  57         return HttpURLConnection.HTTP_OK;
  58     }
  59
  60     @Override
  61     public void neutronSubnetDeleted(NeutronSubnet subnet) {
  62         enqueueEvent(new NorthboundEvent(subnet, Action.DELETE));
  63     }
  64
  65     /**
  66      * Process the event.
  67      *
  68      * @param abstractEvent the {@link org.opendaylight.ovsdb.openstack.netvirt.AbstractEvent} event to be handled.
  69      * @see org.opendaylight.ovsdb.openstack.netvirt.api.EventDispatcher
  70      */
  71     @Override
  72     public void processEvent(AbstractEvent abstractEvent) {
  73         if (!(abstractEvent instanceof NorthboundEvent)) {
  74             logger.error("Unable to process abstract event " + abstractEvent);
  75             return;
  76         }
  77         NorthboundEvent ev = (NorthboundEvent) abstractEvent;
  78         switch (ev.getAction()) {
  79             case ADD:
  80                 // fall through
  81             case DELETE:
  82                 // fall through
  83             case UPDATE:
  84                 Preconditions.checkNotNull(neutronL3Adapter);
  85                 neutronL3Adapter.handleNeutronSubnetEvent(ev.getSubnet(), ev.getAction());
  86                 break;
  87             default:
  88                 logger.warn("Unable to process event action " + ev.getAction());
  89                 break;
  90         }
  91     }
  92
  93     @Override
  94     public void setDependencies(BundleContext bundleContext, ServiceReference serviceReference) {
  95         neutronL3Adapter =
  96                 (NeutronL3Adapter) ServiceHelper.getGlobalInstance(NeutronL3Adapter.class, this);
  97         eventDispatcher =
  98                 (EventDispatcher) ServiceHelper.getGlobalInstance(EventDispatcher.class, this);
  99         eventDispatcher.eventHandlerAdded(
 100                 bundleContext.getServiceReference(INeutronSubnetAware.class.getName()), this);
 101     }
 102
 103     @Override
 104     public void setDependencies(Object impl) {
 105
 106     }
 107 }