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

   1 /*
   2  * Copyright (c) 2020 PANTHEON.tech, s.r.o. 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.annotations.Beta;
  13 import java.util.concurrent.ConcurrentHashMap;
  14 import java.util.concurrent.ConcurrentMap;
  15 import org.opendaylight.mdsal.binding.dom.codec.api.BindingCodecTree;
  16 import org.opendaylight.protocol.bgp.rib.impl.spi.Codecs;
  17 import org.opendaylight.protocol.bgp.rib.impl.spi.CodecsRegistry;
  18 import org.opendaylight.protocol.bgp.rib.spi.RIBSupport;
  19 import org.osgi.service.component.annotations.Activate;
  20 import org.osgi.service.component.annotations.Component;
  21 import org.osgi.service.component.annotations.Deactivate;
  22 import org.osgi.service.component.annotations.Reference;
  23 import org.osgi.service.component.annotations.ReferencePolicy;
  24 import org.slf4j.Logger;
  25 import org.slf4j.LoggerFactory;
  26
  27 @Beta
  28 @Component(immediate = true)
  29 public final class OSGiCodecsRegistry implements CodecsRegistry {
  30     private static final Logger LOG = LoggerFactory.getLogger(OSGiCodecsRegistry.class);
  31
  32     private final ConcurrentMap<RIBSupport<?, ?, ?, ?>, Codecs> contexts = new ConcurrentHashMap<>();
  33     private volatile BindingCodecTree codecTree;
  34
  35     @Override
  36     public Codecs getCodecs(final RIBSupport<?, ?, ?, ?> ribSupport) {
  37         return contexts.computeIfAbsent(ribSupport, this::createCodecs);
  38     }
  39
  40     @Reference(policy = ReferencePolicy.DYNAMIC)
  41     void bindCodecTree(final BindingCodecTree newCodecTree) {
  42         this.codecTree = requireNonNull(newCodecTree);
  43     }
  44
  45     void unbindCodecTree(final BindingCodecTree unused) {
  46         this.codecTree = null;
  47     }
  48
  49     void updatedCodecTree(final BindingCodecTree newCodecTree) {
  50         this.codecTree = requireNonNull(newCodecTree);
  51         contexts.values().forEach(codecs -> codecs.onCodecTreeUpdated(newCodecTree));
  52     }
  53
  54     @Activate
  55     @SuppressWarnings("static-method")
  56     void activate() {
  57         LOG.info("BGP codec registry started");
  58     }
  59
  60     @Deactivate
  61     void deactivate() {
  62         contexts.clear();
  63         LOG.info("BGP codec registry stopped");
  64     }
  65
  66     private Codecs createCodecs(final RIBSupport<?, ?, ?, ?> key) {
  67         final Codecs codecs = new CodecsImpl(key);
  68         codecs.onCodecTreeUpdated(codecTree);
  69         return codecs;
  70     }
  71 }