natservice/impl/src/main/java/org/opendaylight/netvirt/natservice/ha/SnatCentralizedSwitchChangeListener.java

   1 /*
   2  * Copyright (c) 2017 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.netvirt.natservice.ha;
  10
  11 import java.math.BigInteger;
  12
  13 import javax.annotation.PostConstruct;
  14 import javax.inject.Inject;
  15 import javax.inject.Singleton;
  16 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  18 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
  19 import org.opendaylight.netvirt.natservice.api.SnatServiceManager;
  20 import org.opendaylight.netvirt.natservice.internal.NatUtil;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.NaptSwitches;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.ext.routers.Routers;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.napt.switches.RouterToNaptSwitch;
  24 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27
  28 /**
  29  * CentralizedSwitchChangeListener detect changes in switch:router mapping and
  30  * update flows accordingly.
  31  */
  32 @Singleton
  33 public class SnatCentralizedSwitchChangeListener
  34         extends AsyncDataTreeChangeListenerBase<RouterToNaptSwitch, SnatCentralizedSwitchChangeListener> {
  35
  36     private static final Logger LOG = LoggerFactory.getLogger(SnatCentralizedSwitchChangeListener.class);
  37     private final DataBroker dataBroker;
  38     private final SnatServiceManager snatServiceManger;
  39     private final NatDataUtil natDataUtil;
  40
  41     @Inject
  42     public SnatCentralizedSwitchChangeListener(final DataBroker dataBroker,
  43             final SnatServiceManager snatServiceManger, NatDataUtil natDataUtil) {
  44         super(RouterToNaptSwitch.class, SnatCentralizedSwitchChangeListener.class);
  45         this.dataBroker = dataBroker;
  46         this.snatServiceManger = snatServiceManger;
  47         this.natDataUtil = natDataUtil;
  48     }
  49
  50     @Override
  51     @PostConstruct
  52     public void init() {
  53         LOG.info("{} init", getClass().getSimpleName());
  54         registerListener(LogicalDatastoreType.CONFIGURATION, dataBroker);
  55     }
  56
  57     @Override
  58     protected InstanceIdentifier<RouterToNaptSwitch> getWildCardPath() {
  59         return InstanceIdentifier.create(NaptSwitches.class).child(RouterToNaptSwitch.class);
  60     }
  61
  62     @Override
  63     protected void remove(InstanceIdentifier<RouterToNaptSwitch> key, RouterToNaptSwitch routerToNaptSwitch) {
  64         LOG.debug("Deleting {}", routerToNaptSwitch);
  65         BigInteger primarySwitchId = routerToNaptSwitch.getPrimarySwitchId();
  66         Routers router =   natDataUtil.getRouter(routerToNaptSwitch.getRouterName());
  67         snatServiceManger.notify(router, primarySwitchId, null, SnatServiceManager.Action.SNAT_ALL_SWITCH_DISBL);
  68         natDataUtil.removeFromRouterMap(router);
  69     }
  70
  71     @Override
  72     protected void update(InstanceIdentifier<RouterToNaptSwitch> key, RouterToNaptSwitch origRouterToNaptSwitch,
  73             RouterToNaptSwitch updatedRouterToNaptSwitch) {
  74         LOG.debug("Updating old {} new {}", origRouterToNaptSwitch, updatedRouterToNaptSwitch);
  75         BigInteger primarySwitchId = origRouterToNaptSwitch.getPrimarySwitchId();
  76         Routers router = NatUtil.getRoutersFromConfigDS(dataBroker, origRouterToNaptSwitch.getRouterName());
  77         natDataUtil.updateRouterMap(router);
  78         snatServiceManger.notify(router, primarySwitchId, null, SnatServiceManager.Action.SNAT_ALL_SWITCH_DISBL);
  79     }
  80
  81     @Override
  82     protected void add(InstanceIdentifier<RouterToNaptSwitch> key, RouterToNaptSwitch routerToNaptSwitch) {
  83         LOG.debug("Adding {}", routerToNaptSwitch);
  84         BigInteger primarySwitchId = routerToNaptSwitch.getPrimarySwitchId();
  85         Routers router = NatUtil.getRoutersFromConfigDS(dataBroker, routerToNaptSwitch.getRouterName());
  86         natDataUtil.addtoRouterMap(router);
  87         snatServiceManger.notify(router, primarySwitchId, null, SnatServiceManager.Action.SNAT_ALL_SWITCH_ENBL);
  88     }
  89
  90     @Override
  91     protected SnatCentralizedSwitchChangeListener getDataTreeChangeListener() {
  92         return this;
  93     }
  94 }