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 com.google.common.base.Preconditions;
  11 import com.google.common.cache.CacheBuilder;
  12 import com.google.common.cache.CacheLoader;
  13 import com.google.common.cache.LoadingCache;
  14 import org.opendaylight.protocol.bgp.rib.impl.spi.CodecsRegistry;
  15 import org.opendaylight.protocol.bgp.rib.impl.spi.RIBSupportContext;
  16 import org.opendaylight.protocol.bgp.rib.impl.spi.RIBSupportContextRegistry;
  17 import org.opendaylight.protocol.bgp.rib.spi.RIBExtensionConsumerContext;
  18 import org.opendaylight.protocol.bgp.rib.spi.RIBSupport;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.TablesKey;
  20 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
  21
  22 final class RIBSupportContextRegistryImpl implements RIBSupportContextRegistry {
  23
  24     private final LoadingCache<RIBSupport, RIBSupportContextImpl> contexts = CacheBuilder.newBuilder()
  25             .build(new CacheLoader<RIBSupport, RIBSupportContextImpl>(){
  26                 @Override
  27                 public RIBSupportContextImpl load(final RIBSupport key) {
  28                     return createRIBSupportContext(key);
  29                 }
  30             });
  31
  32     private final RIBExtensionConsumerContext extensionContext;
  33     private final CodecsRegistry codecs;
  34
  35     private RIBSupportContextRegistryImpl(final RIBExtensionConsumerContext extensions, final CodecsRegistry codecs) {
  36         this.extensionContext = Preconditions.checkNotNull(extensions);
  37         this.codecs = Preconditions.checkNotNull(codecs);
  38     }
  39
  40     static RIBSupportContextRegistryImpl create(final RIBExtensionConsumerContext extensions, final CodecsRegistry codecs) {
  41         return new RIBSupportContextRegistryImpl(extensions, codecs);
  42     }
  43
  44     private RIBSupportContextImpl createRIBSupportContext(final RIBSupport support) {
  45         return new RIBSupportContextImpl(support, this.codecs);
  46     }
  47
  48     @Override
  49     public RIBSupportContext getRIBSupportContext(final TablesKey key) {
  50         final RIBSupport ribSupport = this.extensionContext.getRIBSupport(key);
  51         if(ribSupport != null) {
  52             return this.contexts.getUnchecked(ribSupport);
  53         }
  54         return null;
  55     }
  56
  57     @Override
  58     public RIBSupportContext getRIBSupportContext(final NodeIdentifierWithPredicates key) {
  59         final RIBSupport ribSupport = this.extensionContext.getRIBSupport(key);
  60         if(ribSupport != null) {
  61             return this.contexts.getUnchecked(ribSupport);
  62         }
  63         return null;
  64     }
  65 }