bgp/rib-impl/src/main/java/org/opendaylight/protocol/bgp/rib/impl/RIBSupportContextRegistryImpl.java

   1 /*
   2  * Copyright (c) 2015 Cisco 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.protocol.bgp.rib.impl;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.cache.CacheBuilder;
  13 import com.google.common.cache.CacheLoader;
  14 import com.google.common.cache.LoadingCache;
  15 import org.opendaylight.protocol.bgp.rib.impl.spi.CodecsRegistry;
  16 import org.opendaylight.protocol.bgp.rib.impl.spi.RIBSupportContext;
  17 import org.opendaylight.protocol.bgp.rib.impl.spi.RIBSupportContextRegistry;
  18 import org.opendaylight.protocol.bgp.rib.spi.RIBExtensionConsumerContext;
  19 import org.opendaylight.protocol.bgp.rib.spi.RIBSupport;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.Tables;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.TablesKey;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.tables.Routes;
  23 import org.opendaylight.yangtools.yang.binding.ChildOf;
  24 import org.opendaylight.yangtools.yang.binding.ChoiceIn;
  25 import org.opendaylight.yangtools.yang.binding.DataObject;
  26 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
  27
  28 final class RIBSupportContextRegistryImpl implements RIBSupportContextRegistry {
  29
  30     private final RIBExtensionConsumerContext extensionContext;
  31     private final CodecsRegistry codecs;
  32     private final LoadingCache<RIBSupport<?, ?>, RIBSupportContextImpl> contexts = CacheBuilder.newBuilder()
  33             .build(new CacheLoader<RIBSupport<?, ?>, RIBSupportContextImpl>() {
  34                 @Override
  35                 public RIBSupportContextImpl load(final RIBSupport<?, ?> key) {
  36                     return createRIBSupportContext(key);
  37                 }
  38             });
  39
  40     private RIBSupportContextRegistryImpl(final RIBExtensionConsumerContext extensions, final CodecsRegistry codecs) {
  41         this.extensionContext = requireNonNull(extensions);
  42         this.codecs = requireNonNull(codecs);
  43     }
  44
  45     static RIBSupportContextRegistryImpl create(final RIBExtensionConsumerContext extensions,
  46             final CodecsRegistry codecs) {
  47         return new RIBSupportContextRegistryImpl(extensions, codecs);
  48     }
  49
  50     private RIBSupportContextImpl createRIBSupportContext(final RIBSupport<?, ?> support) {
  51         return new RIBSupportContextImpl(support, this.codecs);
  52     }
  53
  54     @Override
  55     public <C extends Routes & DataObject & ChoiceIn<Tables>, S extends ChildOf<? super C>>
  56             RIBSupport<C, S> getRIBSupport(final TablesKey key) {
  57         final RIBSupportContext ribSupport = getRIBSupportContext(key);
  58         return ribSupport == null ? null : ribSupport.getRibSupport();
  59     }
  60
  61     @Override
  62     public RIBSupportContext getRIBSupportContext(final TablesKey key) {
  63         final RIBSupport<?, ?> ribSupport = this.extensionContext.getRIBSupport(key);
  64         return ribSupport == null ? null : this.contexts.getUnchecked(ribSupport);
  65     }
  66
  67     @Override
  68     public RIBSupportContext getRIBSupportContext(final NodeIdentifierWithPredicates key) {
  69         final RIBSupport<?, ?> ribSupport = this.extensionContext.getRIBSupport(key);
  70         return ribSupport == null ? null : this.contexts.getUnchecked(ribSupport);
  71     }
  72 }