tom | 0eb04ca | 2014-08-25 14:34:51 -0700 | [diff] [blame] | 1 | package org.onlab.onos.net; |
| 2 | |
tom | ca20e0c | 2014-09-03 23:22:24 -0700 | [diff] [blame] | 3 | import java.util.Objects; |
| 4 | |
alshabib | 4680bb6 | 2014-09-04 17:15:08 -0700 | [diff] [blame] | 5 | import com.google.common.primitives.UnsignedLongs; |
tom | ca20e0c | 2014-09-03 23:22:24 -0700 | [diff] [blame] | 6 | |
tom | 0eb04ca | 2014-08-25 14:34:51 -0700 | [diff] [blame] | 7 | /** |
| 8 | * Representation of a port number. |
| 9 | */ |
tom | ca20e0c | 2014-09-03 23:22:24 -0700 | [diff] [blame] | 10 | public final class PortNumber { |
| 11 | |
| 12 | private static final long MAX_NUMBER = (2L * Integer.MAX_VALUE) + 1; |
| 13 | |
| 14 | private final long number; |
| 15 | |
| 16 | // Public creation is prohibited |
| 17 | private PortNumber(long number) { |
tom | ca20e0c | 2014-09-03 23:22:24 -0700 | [diff] [blame] | 18 | this.number = number; |
| 19 | } |
| 20 | |
| 21 | /** |
| 22 | * Returns the port number representing the specified long value. |
| 23 | * |
| 24 | * @param number port number as long value |
| 25 | * @return port number |
| 26 | */ |
| 27 | public static PortNumber portNumber(long number) { |
| 28 | return new PortNumber(number); |
| 29 | } |
| 30 | |
| 31 | /** |
| 32 | * Returns the port number representing the specified string value. |
| 33 | * |
| 34 | * @param string port number as string value |
| 35 | * @return port number |
| 36 | */ |
| 37 | public static PortNumber portNumber(String string) { |
| 38 | return new PortNumber(UnsignedLongs.decode(string)); |
| 39 | } |
| 40 | |
| 41 | /** |
| 42 | * Returns the backing long value. |
| 43 | * |
| 44 | * @return port number as long |
| 45 | */ |
| 46 | public long toLong() { |
| 47 | return number; |
| 48 | } |
| 49 | |
| 50 | @Override |
| 51 | public String toString() { |
| 52 | return UnsignedLongs.toString(number); |
| 53 | } |
| 54 | |
| 55 | @Override |
| 56 | public int hashCode() { |
| 57 | return Objects.hash(number); |
| 58 | } |
| 59 | |
| 60 | @Override |
| 61 | public boolean equals(Object obj) { |
| 62 | if (obj instanceof PortNumber) { |
| 63 | final PortNumber other = (PortNumber) obj; |
| 64 | return this.number == other.number; |
| 65 | } |
| 66 | return false; |
| 67 | } |
tom | 0eb04ca | 2014-08-25 14:34:51 -0700 | [diff] [blame] | 68 | } |