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.rev130925.rib.TablesKey;
  21 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
  22
  23 final class RIBSupportContextRegistryImpl implements RIBSupportContextRegistry {
  24
  25     private final LoadingCache<RIBSupport, RIBSupportContextImpl> contexts = CacheBuilder.newBuilder()
  26             .build(new CacheLoader<RIBSupport, RIBSupportContextImpl>(){
  27                 @Override
  28                 public RIBSupportContextImpl load(final RIBSupport key) {
  29                     return createRIBSupportContext(key);
  30                 }
  31             });
  32
  33     private final RIBExtensionConsumerContext extensionContext;
  34     private final CodecsRegistry codecs;
  35
  36     private RIBSupportContextRegistryImpl(final RIBExtensionConsumerContext extensions, final CodecsRegistry codecs) {
  37         this.extensionContext = requireNonNull(extensions);
  38         this.codecs = requireNonNull(codecs);
  39     }
  40
  41     static RIBSupportContextRegistryImpl create(final RIBExtensionConsumerContext extensions, final CodecsRegistry codecs) {
  42         return new RIBSupportContextRegistryImpl(extensions, codecs);
  43     }
  44
  45     private RIBSupportContextImpl createRIBSupportContext(final RIBSupport support) {
  46         return new RIBSupportContextImpl(support, this.codecs);
  47     }
  48
  49     @Override
  50     public RIBSupportContext getRIBSupportContext(final TablesKey key) {
  51         final RIBSupport ribSupport = this.extensionContext.getRIBSupport(key);
  52         if(ribSupport != null) {
  53             return this.contexts.getUnchecked(ribSupport);
  54         }
  55         return null;
  56     }
  57
  58     @Override
  59     public RIBSupportContext getRIBSupportContext(final NodeIdentifierWithPredicates key) {
  60         final RIBSupport ribSupport = this.extensionContext.getRIBSupport(key);
  61         if(ribSupport != null) {
  62             return this.contexts.getUnchecked(ribSupport);
  63         }
  64         return null;
  65     }
  66 }