bgp/parser-impl/src/main/java/org/opendaylight/protocol/bgp/parser/impl/BGPMessageFactoryImpl.java

   1 /*
   2  * Copyright (c) 2013 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.parser.impl;
   9
  10 import java.util.List;
  11
  12 import org.opendaylight.protocol.bgp.parser.BGPMessageFactory;
  13 import org.opendaylight.protocol.bgp.parser.spi.MessageRegistry;
  14 import org.opendaylight.protocol.bgp.parser.spi.ProviderContext;
  15 import org.opendaylight.protocol.framework.DeserializerException;
  16 import org.opendaylight.protocol.framework.DocumentedException;
  17 import org.opendaylight.yangtools.yang.binding.Notification;
  18
  19 import com.google.common.base.Preconditions;
  20 import com.google.common.collect.Lists;
  21
  22 public final class BGPMessageFactoryImpl implements BGPMessageFactory {
  23         private static final class Holder {
  24                 private static final BGPMessageFactoryImpl INSTANCE;
  25
  26                 static {
  27                         final ProviderContext pc = SingletonProviderContext.getInstance();
  28
  29                         new ActivatorImpl().start(pc);
  30
  31                         INSTANCE = new BGPMessageFactoryImpl(pc.getMessageRegistry());
  32                 }
  33         }
  34
  35         private final MessageRegistry registry;
  36
  37         private BGPMessageFactoryImpl(final MessageRegistry registry) {
  38                 this.registry = Preconditions.checkNotNull(registry);
  39         }
  40
  41         public static BGPMessageFactoryImpl getInstance() {
  42                 return Holder.INSTANCE;
  43         }
  44
  45         /*
  46          * (non-Javadoc)
  47          * @see org.opendaylight.protocol.bgp.parser.BGPMessageParser#parse(byte[])
  48          */
  49         @Override
  50         public final List<Notification> parse(final byte[] bytes) throws DeserializerException, DocumentedException {
  51                 return Lists.newArrayList(registry.parseMessage(bytes));
  52         }
  53
  54         @Override
  55         public final byte[] put(final Notification msg) {
  56                 return registry.serializeMessage(msg);
  57         }
  58 }