Stuart McCulloch | 26e7a5a | 2011-10-17 10:31:43 +0000 | [diff] [blame] | 1 | package aQute.libg.version; |
| 2 | |
| 3 | import java.util.regex.*; |
| 4 | |
| 5 | public class VersionRange { |
| 6 | Version high; |
| 7 | Version low; |
| 8 | char start = '['; |
| 9 | char end = ']'; |
| 10 | |
| 11 | static Pattern RANGE = Pattern.compile("(\\(|\\[)\\s*(" + |
| 12 | Version.VERSION_STRING + ")\\s*,\\s*(" + |
| 13 | Version.VERSION_STRING + ")\\s*(\\)|\\])"); |
| 14 | |
| 15 | public VersionRange(String string) { |
| 16 | string = string.trim(); |
| 17 | Matcher m = RANGE.matcher(string); |
| 18 | if (m.matches()) { |
| 19 | start = m.group(1).charAt(0); |
| 20 | String v1 = m.group(2); |
| 21 | String v2 = m.group(10); |
| 22 | low = new Version(v1); |
| 23 | high = new Version(v2); |
| 24 | end = m.group(18).charAt(0); |
| 25 | if (low.compareTo(high) > 0) |
| 26 | throw new IllegalArgumentException( |
| 27 | "Low Range is higher than High Range: " + low + "-" + |
| 28 | high); |
| 29 | |
| 30 | } else |
| 31 | high = low = new Version(string); |
| 32 | } |
| 33 | |
| 34 | public boolean isRange() { |
| 35 | return high != low; |
| 36 | } |
| 37 | |
| 38 | public boolean includeLow() { |
| 39 | return start == '['; |
| 40 | } |
| 41 | |
| 42 | public boolean includeHigh() { |
| 43 | return end == ']'; |
| 44 | } |
| 45 | |
| 46 | public String toString() { |
| 47 | if (high == low) |
| 48 | return high.toString(); |
| 49 | |
| 50 | StringBuffer sb = new StringBuffer(); |
| 51 | sb.append(start); |
| 52 | sb.append(low); |
| 53 | sb.append(','); |
| 54 | sb.append(high); |
| 55 | sb.append(end); |
| 56 | return sb.toString(); |
| 57 | } |
| 58 | |
| 59 | public Version getLow() { |
| 60 | return low; |
| 61 | } |
| 62 | |
| 63 | public Version getHigh() { |
| 64 | return high; |
| 65 | } |
| 66 | |
| 67 | public boolean includes(Version v) { |
| 68 | if ( !isRange() ) { |
| 69 | return low.compareTo(v) <=0; |
| 70 | } |
| 71 | if (includeLow()) { |
| 72 | if (v.compareTo(low) < 0) |
| 73 | return false; |
| 74 | } else if (v.compareTo(low) <= 0) |
| 75 | return false; |
| 76 | |
| 77 | if (includeHigh()) { |
| 78 | if (v.compareTo(high) > 0) |
| 79 | return false; |
| 80 | } else if (v.compareTo(high) >= 0) |
| 81 | return false; |
| 82 | |
| 83 | return true; |
| 84 | } |
| 85 | } |