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

   1 package org.opendaylight.controller.md.sal.common.impl.routing;
   2
   3 import java.util.Map;
   4 import java.util.Set;
   5
   6 import org.opendaylight.controller.md.sal.common.api.routing.RouteChange;
   7
   8 import com.google.common.collect.ImmutableMap;
   9 import com.google.common.collect.ImmutableSet;
  10
  11 public class RoutingUtils {
  12
  13     public static <C,P> RouteChange<C,P> removalChange(C context,P path) {
  14         final ImmutableMap<C, Set<P>> announcements = ImmutableMap.<C,Set<P>>of();
  15         final ImmutableMap<C, Set<P>> removals = ImmutableMap.<C,Set<P>>of(context, ImmutableSet.of(path));
  16         return new RouteChangeImpl<C,P>(announcements, removals);
  17     }
  18
  19     public static <C,P> RouteChange<C,P> announcementChange(C context,P path) {
  20         final ImmutableMap<C, Set<P>> announcements = ImmutableMap.<C,Set<P>>of(context, ImmutableSet.of(path));
  21         final ImmutableMap<C, Set<P>> removals = ImmutableMap.<C,Set<P>>of();
  22         return new RouteChangeImpl<C,P>(announcements, removals);
  23     }
  24
  25
  26     public static <C,P> RouteChange<C,P> change(Map<C, Set<P>> announcements,
  27             Map<C, Set<P>> removals) {
  28         final ImmutableMap<C, Set<P>> immutableAnnouncements = ImmutableMap.<C,Set<P>>copyOf(announcements);
  29         final ImmutableMap<C, Set<P>> immutableRemovals = ImmutableMap.<C,Set<P>>copyOf(removals);
  30         return new RouteChangeImpl<C,P>(immutableAnnouncements, immutableRemovals);
  31     }
  32
  33
  34     private static class RouteChangeImpl<C,P> implements RouteChange<C, P> {
  35         private final Map<C, Set<P>> removal;
  36         private final Map<C, Set<P>> announcement;
  37
  38         public RouteChangeImpl(ImmutableMap<C, Set<P>> removal, ImmutableMap<C, Set<P>> announcement) {
  39             super();
  40             this.removal = removal;
  41             this.announcement = announcement;
  42         }
  43
  44         @Override
  45         public Map<C, Set<P>> getAnnouncements() {
  46             return announcement;
  47         }
  48
  49         @Override
  50         public Map<C, Set<P>> getRemovals() {
  51             return removal;
  52         }
  53
  54         @Override
  55         public int hashCode() {
  56             final int prime = 31;
  57             int result = 1;
  58             result = prime * result + ((announcement == null) ? 0 : announcement.hashCode());
  59             result = prime * result + ((removal == null) ? 0 : removal.hashCode());
  60             return result;
  61         }
  62
  63         @Override
  64         public boolean equals(Object obj) {
  65             if (this == obj) {
  66                 return true;
  67             }
  68             if (obj == null) {
  69                 return false;
  70             }
  71             if (getClass() != obj.getClass()) {
  72                 return false;
  73             }
  74             RouteChangeImpl other = (RouteChangeImpl) obj;
  75             if (announcement == null) {
  76                 if (other.announcement != null)
  77                     return false;
  78             } else if (!announcement.equals(other.announcement))
  79                 return false;
  80             if (removal == null) {
  81                 if (other.removal != null) {
  82                     return false;
  83                 }
  84             } else if (!removal.equals(other.removal))
  85                 return false;
  86             return true;
  87         }
  88     }
  89
  90
  91
  92 }