X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=src%2Fde%2Ftodesbaum%2Fjsite%2Fmain%2FVersion.java;h=977836cbaa2a3292fc3ff0fdda8a535e2f4b7b2f;hb=e47e15fdbb7515f5a3757c3f5df8c1d0950aee8e;hp=1eb492e6c5db72a7e579944bef86a2dcd86a1ffa;hpb=47653a276ba2307820187ad126dfcacc147a105f;p=jSite.git

diff --git a/src/de/todesbaum/jsite/main/Version.java b/src/de/todesbaum/jsite/main/Version.java
index 1eb492e..977836c 100644
--- a/src/de/todesbaum/jsite/main/Version.java
+++ b/src/de/todesbaum/jsite/main/Version.java
@@ -1,6 +1,5 @@
 /*
- * jSite - a tool for uploading websites into Freenet
- * Copyright (C) 2006 David Roden
+ * jSite - Version.java - Copyright © 2006–2012 David Roden
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -20,15 +19,95 @@
 package de.todesbaum.jsite.main;
 
 /**
- * @author <a href="mailto:droden@gmail.com">David Roden </a>
- * @version $Id$
+ * Container for version information.
+ *
+ * @author David ‘Bombe’ Roden &lt;bombe@freenetproject.org&gt;
  */
-public class Version {
+public class Version implements Comparable<Version> {
+
+	/** The components of the version information. */
+	private final int[] components;
+
+	/**
+	 * Creates a new version container with the given components.
+	 *
+	 * @param components
+	 *            The version components
+	 */
+	public Version(int... components) {
+		this.components = new int[components.length];
+		System.arraycopy(components, 0, this.components, 0, components.length);
+	}
+
+	/**
+	 * Returns the number of version components.
+	 *
+	 * @return The number of version components
+	 */
+	public int size() {
+		return components.length;
+	}
 
-	private static final String VERSION = "0.4.3";
+	/**
+	 * Returns the version component with the given index.
+	 *
+	 * @param index
+	 *            The index of the version component
+	 * @return The version component
+	 */
+	public int getComponent(int index) {
+		return components[index];
+	}
+
+	/**
+	 * Parses a version from the given string.
+	 *
+	 * @param versionString
+	 *            The version string to parse
+	 * @return The parsed version, or <code>null</code> if the string could not
+	 *         be parsed
+	 */
+	public static Version parse(String versionString) {
+		String[] componentStrings = versionString.split("\\.");
+		int[] components = new int[componentStrings.length];
+		int index = -1;
+		for (String componentString : componentStrings) {
+			try {
+				components[++index] = Integer.parseInt(componentString);
+			} catch (NumberFormatException nfe1) {
+				return null;
+			}
+		}
+		return new Version(components);
+	}
+
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	public String toString() {
+		StringBuilder versionString = new StringBuilder();
+		for (int component : components) {
+			if (versionString.length() != 0) {
+				versionString.append('.');
+			}
+			versionString.append(component);
+		}
+		return versionString.toString();
+	}
 
-	public static final String getVersion() {
-		return VERSION;
+	/**
+	 * {@inheritDoc}
+	 */
+	public int compareTo(Version version) {
+		int lessComponents = Math.min(components.length, version.components.length);
+		for (int index = 0; index < lessComponents; index++) {
+			if (version.components[index] == components[index]) {
+				continue;
+			}
+			return components[index] - version.components[index];
+		}
+		return components.length - version.components.length;
 	}
 
 }