infra/northbound/bgp/src/main/java/io/fd/honeycomb/infra/bgp/BgpExtensionsModule.java

   1 /*
   2  * Copyright (c) 2017 Cisco and/or its affiliates.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at:
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package io.fd.honeycomb.infra.bgp;
  18
  19 import com.google.inject.Singleton;
  20 import com.google.inject.multibindings.Multibinder;
  21 import io.fd.honeycomb.northbound.NorthboundAbstractModule;
  22 import org.opendaylight.protocol.bgp.parser.spi.BGPExtensionConsumerContext;
  23 import org.opendaylight.protocol.bgp.parser.spi.BGPExtensionProviderActivator;
  24 import org.opendaylight.protocol.bgp.rib.spi.RIBExtensionConsumerContext;
  25 import org.opendaylight.protocol.bgp.rib.spi.RIBExtensionProviderActivator;
  26 import org.slf4j.Logger;
  27 import org.slf4j.LoggerFactory;
  28
  29 /**
  30  * Registers BGP extensions provided by ODL implementation.
  31  * TODO add support for flowspec (requires some special initialization)
  32  */
  33 public final class BgpExtensionsModule extends NorthboundAbstractModule<BgpConfiguration> {
  34     private static final Logger LOG = LoggerFactory.getLogger(BgpExtensionsModule.class);
  35
  36     public BgpExtensionsModule() {
  37         super(new BgpConfigurationModule(), BgpConfiguration.class);
  38     }
  39
  40     protected void configure() {
  41         if (!getConfiguration().isBgpEnabled()) {
  42             LOG.debug("BGP disabled. Skipping initialization");
  43             return;
  44         }
  45         LOG.debug("Initializing BgpExtensionsModule");
  46         // This should be part of BgpModule, but that one is Private and Multibinders + private BASE_MODULES
  47         // do not work together, that's why there's a dedicated module here
  48         // https://github.com/google/guice/issues/906
  49         configureRIBExtensions();
  50         configureBGPExtensions();
  51     }
  52
  53     private void configureRIBExtensions() {
  54         final Multibinder<RIBExtensionProviderActivator> ribExtensionBinder = Multibinder.newSetBinder(binder(),
  55             RIBExtensionProviderActivator.class);
  56         ribExtensionBinder.addBinding().to(org.opendaylight.protocol.bgp.evpn.impl.RIBActivator.class);
  57         ribExtensionBinder.addBinding().to(org.opendaylight.protocol.bgp.inet.RIBActivator.class);
  58         ribExtensionBinder.addBinding().to(org.opendaylight.protocol.bgp.labeled.unicast.RIBActivator.class);
  59         ribExtensionBinder.addBinding().to(org.opendaylight.protocol.bgp.linkstate.impl.RIBActivator.class);
  60         ribExtensionBinder.addBinding().to(org.opendaylight.protocol.bgp.l3vpn.ipv4.RibIpv4Activator.class);
  61         ribExtensionBinder.addBinding().to(org.opendaylight.protocol.bgp.l3vpn.ipv6.RibIpv6Activator.class);
  62         bind(RIBExtensionConsumerContext.class).toProvider(RIBExtensionConsumerContextProvider.class)
  63             .in(Singleton.class);
  64     }
  65
  66     private void configureBGPExtensions() {
  67         final Multibinder<BGPExtensionProviderActivator> bgpExtensionBinder = Multibinder.newSetBinder(binder(),
  68             BGPExtensionProviderActivator.class);
  69         bgpExtensionBinder.addBinding().to(org.opendaylight.protocol.bgp.parser.impl.BGPActivator.class);
  70         bgpExtensionBinder.addBinding().to(org.opendaylight.protocol.bgp.evpn.impl.BGPActivator.class);
  71         bgpExtensionBinder.addBinding().to(org.opendaylight.protocol.bgp.inet.BGPActivator.class);
  72         bgpExtensionBinder.addBinding().to(org.opendaylight.protocol.bgp.labeled.unicast.BGPActivator.class);
  73         bgpExtensionBinder.addBinding().to(org.opendaylight.protocol.bgp.linkstate.impl.BGPActivator.class);
  74         bgpExtensionBinder.addBinding().to(org.opendaylight.protocol.bgp.l3vpn.ipv4.BgpIpv4Activator.class);
  75         bgpExtensionBinder.addBinding().to(org.opendaylight.protocol.bgp.l3vpn.ipv6.BgpIpv6Activator.class);
  76         bind(BGPExtensionConsumerContext.class).toProvider(BGPExtensionConsumerContextProvider.class)
  77             .in(Singleton.class);
  78     }
  79 }