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