openstack/net-virt/src/main/java/org/opendaylight/ovsdb/openstack/netvirt/translator/iaware/impl/NeutronRouterChangeListener.java

   1 /*
   2  * Copyright (c) 2015 Brocade Communications Systems, 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 package org.opendaylight.ovsdb.openstack.netvirt.translator.iaware.impl;
   9
  10 import java.util.ArrayList;
  11 import java.util.HashMap;
  12 import java.util.List;
  13 import java.util.Map;
  14 import java.util.Map.Entry;
  15
  16 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  17 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
  18 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
  19 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
  20 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  21 import org.opendaylight.ovsdb.openstack.netvirt.translator.NeutronRouter;
  22 import org.opendaylight.ovsdb.openstack.netvirt.translator.NeutronRouter_Interface;
  23 import org.opendaylight.ovsdb.openstack.netvirt.translator.NeutronRouter_NetworkReference;
  24 import org.opendaylight.ovsdb.openstack.netvirt.translator.Neutron_IPs;
  25 import org.opendaylight.ovsdb.openstack.netvirt.translator.iaware.INeutronRouterAware;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.l3.rev150712.routers.attributes.Routers;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.l3.rev150712.routers.attributes.routers.Router;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.l3.rev150712.routers.attributes.routers.router.Interfaces;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.l3.rev150712.routers.attributes.routers.router.external_gateway_info.ExternalFixedIps;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.rev150712.Neutron;
  31 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  32 import org.opendaylight.yangtools.yang.binding.DataObject;
  33 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  34 import org.slf4j.Logger;
  35 import org.slf4j.LoggerFactory;
  36
  37 public class NeutronRouterChangeListener implements DataChangeListener, AutoCloseable{
  38     private static final Logger LOG = LoggerFactory.getLogger(NeutronRouterChangeListener.class);
  39
  40     private ListenerRegistration<DataChangeListener> registration;
  41     private DataBroker db;
  42
  43     public NeutronRouterChangeListener(DataBroker db){
  44         this.db = db;
  45         InstanceIdentifier<Router> path = InstanceIdentifier
  46                 .create(Neutron.class)
  47                 .child(Routers.class)
  48                 .child(Router.class);
  49         LOG.debug("Register listener for Neutron Router model data changes");
  50         registration =
  51                 this.db.registerDataChangeListener(LogicalDatastoreType.CONFIGURATION, path, this, DataChangeScope.ONE);
  52
  53     }
  54
  55     @Override
  56     public void onDataChanged(
  57             AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> changes) {
  58         LOG.trace("Data changes : {}",changes);
  59
  60         Object[] subscribers = NeutronIAwareUtil.getInstances(INeutronRouterAware.class, this);
  61         createRouter(changes, subscribers);
  62         updateRouter(changes, subscribers);
  63         deleteRouter(changes, subscribers);
  64     }
  65
  66     private void createRouter(
  67             AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> changes,
  68             Object[] subscribers) {
  69         for (Entry<InstanceIdentifier<?>, DataObject> newRouter : changes.getCreatedData().entrySet()) {
  70                 if(newRouter.getValue() instanceof Router){
  71                 NeutronRouter router = fromMd((Router)newRouter.getValue());
  72                 for(Object entry: subscribers){
  73                     INeutronRouterAware subscriber = (INeutronRouterAware)entry;
  74                     subscriber.neutronRouterCreated(router);
  75                 }
  76                 }
  77         }
  78
  79     }
  80
  81     private void updateRouter(
  82             AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> changes,
  83             Object[] subscribers) {
  84         for (Entry<InstanceIdentifier<?>, DataObject> updateRouter : changes.getUpdatedData().entrySet()) {
  85                 if(updateRouter.getValue() instanceof Router){
  86                 NeutronRouter router = fromMd((Router)updateRouter.getValue());
  87                 for(Object entry: subscribers){
  88                     INeutronRouterAware subscriber = (INeutronRouterAware)entry;
  89                     subscriber.neutronRouterUpdated(router);
  90                 }
  91                 }
  92         }
  93     }
  94
  95     private void deleteRouter(
  96             AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> changes,
  97             Object[] subscribers) {
  98         for (InstanceIdentifier<?> deletedRouterPath : changes.getRemovedPaths()) {
  99                 if(deletedRouterPath.getTargetType().equals(Router.class)){
 100                 NeutronRouter router = fromMd((Router)changes.getOriginalData().get(deletedRouterPath));
 101                 for(Object entry: subscribers){
 102                     INeutronRouterAware subscriber = (INeutronRouterAware)entry;
 103                     subscriber.neutronRouterDeleted(router);
 104                 }
 105                 }
 106         }
 107     }
 108
 109     /*
 110      * This method is borrowed from NeutronRouterInterface.java class of Neutron Northbound class.
 111      * We will be utilizing similar code from other classes from the same package of neutron project.
 112      */
 113     private NeutronRouter fromMd(Router router) {
 114         NeutronRouter result = new NeutronRouter();
 115         result.setID(String.valueOf(router.getUuid().getValue()));
 116         result.setName(router.getName());
 117         result.setTenantID(String.valueOf(router.getTenantId().getValue()));
 118         result.setAdminStateUp(router.isAdminStateUp());
 119         result.setStatus(router.getStatus());
 120         result.setDistributed(router.isDistributed());
 121         if (router.getGatewayPortId() != null) {
 122             result.setGatewayPortId(String.valueOf(router.getGatewayPortId().getValue()));
 123         }
 124         if (router.getRoutes() != null) {
 125             List<String> routes = new ArrayList<>();
 126             for (String route : router.getRoutes()) {
 127                 routes.add(route);
 128             }
 129             result.setRoutes(routes);
 130         }
 131
 132         if (router.getExternalGatewayInfo() != null) {
 133             NeutronRouter_NetworkReference extGwInfo = new NeutronRouter_NetworkReference();
 134             extGwInfo.setNetworkID(String.valueOf(router.getExternalGatewayInfo().getExternalNetworkId().getValue()));
 135             extGwInfo.setEnableSNAT(router.getExternalGatewayInfo().isEnableSnat());
 136             if (router.getExternalGatewayInfo().getExternalFixedIps() != null) {
 137                 List<Neutron_IPs> fixedIPs = new ArrayList<>();
 138                 for (ExternalFixedIps mdFixedIP : router.getExternalGatewayInfo().getExternalFixedIps()) {
 139                      Neutron_IPs fixedIP = new Neutron_IPs();
 140                      fixedIP.setSubnetUUID(String.valueOf(mdFixedIP.getSubnetId().getValue()));
 141                      fixedIP.setIpAddress(String.valueOf(mdFixedIP.getIpAddress().getValue()));
 142                      fixedIPs.add(fixedIP);
 143                 }
 144                 extGwInfo.setExternalFixedIPs(fixedIPs);
 145             }
 146             result.setExternalGatewayInfo(extGwInfo);
 147         }
 148
 149         if (router.getInterfaces() != null) {
 150             Map<String, NeutronRouter_Interface> interfaces = new HashMap<>();
 151             for (Interfaces mdInterface : router.getInterfaces()) {
 152                 NeutronRouter_Interface pojoInterface = new NeutronRouter_Interface();
 153                 String id = String.valueOf(mdInterface.getUuid().getValue());
 154                 pojoInterface.setID(id);
 155                 pojoInterface.setTenantID(String.valueOf(mdInterface.getTenantId().getValue()));
 156                 pojoInterface.setSubnetUUID(String.valueOf(mdInterface.getSubnetId().getValue()));
 157                 pojoInterface.setPortUUID(String.valueOf(mdInterface.getPortId().getValue()));
 158                 interfaces.put(id, pojoInterface);
 159             }
 160             result.setInterfaces(interfaces);
 161         }
 162         return result;
 163     }
 164
 165     @Override
 166     public void close() throws Exception {
 167         registration.close();
 168     }
 169 }