opendaylight/md-sal/sal-common-impl/src/main/java/org/opendaylight/controller/md/sal/common/impl/routing/RoutingUtils.java

   1 /*
   2  * Copyright (c) 2014 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.controller.md.sal.common.impl.routing;
   9
  10 import java.util.Map;
  11 import java.util.Set;
  12
  13 import org.opendaylight.controller.md.sal.common.api.routing.RouteChange;
  14
  15 import com.google.common.collect.ImmutableMap;
  16 import com.google.common.collect.ImmutableSet;
  17
  18 public class RoutingUtils {
  19
  20     public static <C,P> RouteChange<C,P> removalChange(C context,P path) {
  21         final ImmutableMap<C, Set<P>> announcements = ImmutableMap.<C,Set<P>>of();
  22         final ImmutableMap<C, Set<P>> removals = ImmutableMap.<C,Set<P>>of(context, ImmutableSet.of(path));
  23         return new RouteChangeImpl<C,P>(announcements, removals);
  24     }
  25
  26     public static <C,P> RouteChange<C,P> announcementChange(C context,P path) {
  27         final ImmutableMap<C, Set<P>> announcements = ImmutableMap.<C,Set<P>>of(context, ImmutableSet.of(path));
  28         final ImmutableMap<C, Set<P>> removals = ImmutableMap.<C,Set<P>>of();
  29         return new RouteChangeImpl<C,P>(announcements, removals);
  30     }
  31
  32
  33     public static <C,P> RouteChange<C,P> change(Map<C, Set<P>> announcements,
  34             Map<C, Set<P>> removals) {
  35         final ImmutableMap<C, Set<P>> immutableAnnouncements = ImmutableMap.<C,Set<P>>copyOf(announcements);
  36         final ImmutableMap<C, Set<P>> immutableRemovals = ImmutableMap.<C,Set<P>>copyOf(removals);
  37         return new RouteChangeImpl<C,P>(immutableAnnouncements, immutableRemovals);
  38     }
  39
  40
  41     private static class RouteChangeImpl<C,P> implements RouteChange<C, P> {
  42         private final Map<C, Set<P>> removal;
  43         private final Map<C, Set<P>> announcement;
  44
  45         public RouteChangeImpl(ImmutableMap<C, Set<P>> announcement, ImmutableMap<C, Set<P>> removal) {
  46             super();
  47             this.removal = removal;
  48             this.announcement = announcement;
  49         }
  50
  51         @Override
  52         public Map<C, Set<P>> getAnnouncements() {
  53             return announcement;
  54         }
  55
  56         @Override
  57         public Map<C, Set<P>> getRemovals() {
  58             return removal;
  59         }
  60
  61         @Override
  62         public int hashCode() {
  63             final int prime = 31;
  64             int result = 1;
  65             result = prime * result + ((announcement == null) ? 0 : announcement.hashCode());
  66             result = prime * result + ((removal == null) ? 0 : removal.hashCode());
  67             return result;
  68         }
  69
  70         @Override
  71         public boolean equals(Object obj) {
  72             if (this == obj) {
  73                 return true;
  74             }
  75             if (obj == null) {
  76                 return false;
  77             }
  78             if (getClass() != obj.getClass()) {
  79                 return false;
  80             }
  81             RouteChangeImpl<?, ?> other = (RouteChangeImpl<?, ?>) obj;
  82             if (announcement == null) {
  83                 if (other.announcement != null)
  84                     return false;
  85             } else if (!announcement.equals(other.announcement))
  86                 return false;
  87             if (removal == null) {
  88                 if (other.removal != null) {
  89                     return false;
  90                 }
  91             } else if (!removal.equals(other.removal))
  92                 return false;
  93             return true;
  94         }
  95     }
  96
  97
  98
  99 }