Yuta HIGUCHI | 06dc6b9 | 2014-09-25 16:06:16 -0700 | [diff] [blame] | 1 | package org.onlab.onos.net; |
| 2 | |
Yuta HIGUCHI | 18ab8a9 | 2014-10-13 11:16:19 -0700 | [diff] [blame^] | 3 | import static com.google.common.base.Preconditions.checkNotNull; |
| 4 | |
Yuta HIGUCHI | 06dc6b9 | 2014-09-25 16:06:16 -0700 | [diff] [blame] | 5 | import java.util.Objects; |
| 6 | |
Yuta HIGUCHI | 18ab8a9 | 2014-10-13 11:16:19 -0700 | [diff] [blame^] | 7 | import org.onlab.onos.net.link.LinkDescription; |
| 8 | |
Yuta HIGUCHI | 06dc6b9 | 2014-09-25 16:06:16 -0700 | [diff] [blame] | 9 | import com.google.common.base.MoreObjects; |
| 10 | |
| 11 | // TODO Consider renaming. |
| 12 | // it's an identifier for a Link, but it's not ElementId, so not using LinkId. |
tom | 95329eb | 2014-10-06 08:40:06 -0700 | [diff] [blame] | 13 | |
Yuta HIGUCHI | 06dc6b9 | 2014-09-25 16:06:16 -0700 | [diff] [blame] | 14 | /** |
| 15 | * Immutable representation of a link identity. |
| 16 | */ |
Yuta HIGUCHI | 18ab8a9 | 2014-10-13 11:16:19 -0700 | [diff] [blame^] | 17 | public final class LinkKey { |
Yuta HIGUCHI | 06dc6b9 | 2014-09-25 16:06:16 -0700 | [diff] [blame] | 18 | |
| 19 | private final ConnectPoint src; |
| 20 | private final ConnectPoint dst; |
| 21 | |
| 22 | /** |
| 23 | * Returns source connection point. |
| 24 | * |
| 25 | * @return source connection point |
| 26 | */ |
| 27 | public ConnectPoint src() { |
| 28 | return src; |
| 29 | } |
| 30 | |
| 31 | /** |
| 32 | * Returns destination connection point. |
| 33 | * |
| 34 | * @return destination connection point |
| 35 | */ |
| 36 | public ConnectPoint dst() { |
| 37 | return dst; |
| 38 | } |
| 39 | |
| 40 | /** |
| 41 | * Creates a link identifier with source and destination connection point. |
| 42 | * |
| 43 | * @param src source connection point |
| 44 | * @param dst destination connection point |
| 45 | */ |
Yuta HIGUCHI | 18ab8a9 | 2014-10-13 11:16:19 -0700 | [diff] [blame^] | 46 | private LinkKey(ConnectPoint src, ConnectPoint dst) { |
| 47 | this.src = checkNotNull(src); |
| 48 | this.dst = checkNotNull(dst); |
| 49 | } |
| 50 | |
| 51 | /** |
| 52 | * Creates a link identifier with source and destination connection point. |
| 53 | * |
| 54 | * @param src source connection point |
| 55 | * @param dst destination connection point |
| 56 | * @return a link identifier |
| 57 | */ |
| 58 | public static LinkKey linkKey(ConnectPoint src, ConnectPoint dst) { |
| 59 | return new LinkKey(src, dst); |
Yuta HIGUCHI | 06dc6b9 | 2014-09-25 16:06:16 -0700 | [diff] [blame] | 60 | } |
| 61 | |
tom | 95329eb | 2014-10-06 08:40:06 -0700 | [diff] [blame] | 62 | /** |
| 63 | * Creates a link identifier for the specified link. |
| 64 | * |
| 65 | * @param link link descriptor |
Yuta HIGUCHI | 18ab8a9 | 2014-10-13 11:16:19 -0700 | [diff] [blame^] | 66 | * @return a link identifier |
tom | 95329eb | 2014-10-06 08:40:06 -0700 | [diff] [blame] | 67 | */ |
Yuta HIGUCHI | 18ab8a9 | 2014-10-13 11:16:19 -0700 | [diff] [blame^] | 68 | public static LinkKey linkKey(Link link) { |
| 69 | return new LinkKey(link.src(), link.dst()); |
| 70 | } |
| 71 | |
| 72 | /** |
| 73 | * Creates a link identifier for the specified link. |
| 74 | * |
| 75 | * @param desc link description |
| 76 | * @return a link identifier |
| 77 | */ |
| 78 | public static LinkKey linkKey(LinkDescription desc) { |
| 79 | return new LinkKey(desc.src(), desc.dst()); |
tom | 95329eb | 2014-10-06 08:40:06 -0700 | [diff] [blame] | 80 | } |
| 81 | |
Yuta HIGUCHI | 06dc6b9 | 2014-09-25 16:06:16 -0700 | [diff] [blame] | 82 | @Override |
| 83 | public int hashCode() { |
| 84 | return Objects.hash(src(), dst); |
| 85 | } |
| 86 | |
| 87 | @Override |
| 88 | public boolean equals(Object obj) { |
| 89 | if (this == obj) { |
| 90 | return true; |
| 91 | } |
| 92 | if (obj instanceof LinkKey) { |
| 93 | final LinkKey other = (LinkKey) obj; |
Yuta HIGUCHI | 18ab8a9 | 2014-10-13 11:16:19 -0700 | [diff] [blame^] | 94 | return Objects.equals(this.src, other.src) && |
Yuta HIGUCHI | 06dc6b9 | 2014-09-25 16:06:16 -0700 | [diff] [blame] | 95 | Objects.equals(this.dst, other.dst); |
| 96 | } |
| 97 | return false; |
| 98 | } |
| 99 | |
| 100 | @Override |
| 101 | public String toString() { |
| 102 | return MoreObjects.toStringHelper(getClass()) |
Yuta HIGUCHI | 18ab8a9 | 2014-10-13 11:16:19 -0700 | [diff] [blame^] | 103 | .add("src", src) |
Yuta HIGUCHI | 06dc6b9 | 2014-09-25 16:06:16 -0700 | [diff] [blame] | 104 | .add("dst", dst) |
| 105 | .toString(); |
| 106 | } |
| 107 | } |