bgp/parser-impl/src/main/java/org/opendaylight/protocol/bgp/parser/impl/SingletonProviderContext.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 org.opendaylight.protocol.bgp.parser.impl.message.open.SimpleCapabilityRegistry;
  11 import org.opendaylight.protocol.bgp.parser.impl.message.open.SimpleParameterRegistry;
  12 import org.opendaylight.protocol.bgp.parser.impl.message.update.SimpleAttributeRegistry;
  13 import org.opendaylight.protocol.bgp.parser.impl.message.update.SimpleNlriRegistry;
  14 import org.opendaylight.protocol.bgp.parser.spi.AddressFamilyRegistry;
  15 import org.opendaylight.protocol.bgp.parser.spi.AttributeRegistry;
  16 import org.opendaylight.protocol.bgp.parser.spi.CapabilityRegistry;
  17 import org.opendaylight.protocol.bgp.parser.spi.MessageRegistry;
  18 import org.opendaylight.protocol.bgp.parser.spi.NlriRegistry;
  19 import org.opendaylight.protocol.bgp.parser.spi.ParameterRegistry;
  20 import org.opendaylight.protocol.bgp.parser.spi.ProviderContext;
  21 import org.opendaylight.protocol.bgp.parser.spi.SubsequentAddressFamilyRegistry;
  22
  23 public final class SingletonProviderContext implements ProviderContext {
  24         private static final class Holder {
  25                 private static final ProviderContext INSTANCE = new SingletonProviderContext();
  26         }
  27
  28         private SingletonProviderContext() {
  29
  30         }
  31
  32         public static ProviderContext getInstance() {
  33                 return Holder.INSTANCE;
  34         }
  35
  36         @Override
  37         public AddressFamilyRegistry getAddressFamilyRegistry() {
  38                 return SimpleAddressFamilyRegistry.getInstance();
  39         }
  40
  41         @Override
  42         public AttributeRegistry getAttributeRegistry() {
  43                 return SimpleAttributeRegistry.getInstance();
  44         }
  45
  46         @Override
  47         public CapabilityRegistry getCapabilityRegistry() {
  48                 return SimpleCapabilityRegistry.getInstance();
  49         }
  50
  51         @Override
  52         public MessageRegistry getMessageRegistry() {
  53                 return SimpleBGPMessageFactory.getInstance();
  54         }
  55
  56         @Override
  57         public NlriRegistry getNlriRegistry() {
  58                 return SimpleNlriRegistry.getInstance();
  59         }
  60
  61         @Override
  62         public ParameterRegistry getParameterRegistry() {
  63                 return SimpleParameterRegistry.getInstance();
  64         }
  65
  66         @Override
  67         public SubsequentAddressFamilyRegistry getSubsequentAddressFamilyRegistry() {
  68                 return SimpleSubsequentAddressFamilyRegistry.getInstance();
  69         }
  70 }