Initial autoupdater

src/main/java/kcauldron/KCauldron.java

@@ -0,0 +1,48 @@
+package kcauldron;
+
+import java.io.File;
+import java.net.URL;
+import java.net.URLDecoder;
+import java.util.Enumeration;
+import java.util.Properties;
+
+public class KCauldron {
+	private static String sCurrentVersion;
+
+	public static String getCurrentVersion() {
+		if (sCurrentVersion != null)
+			return sCurrentVersion;
+		try {
+			Enumeration<URL> resources = KCauldron.class.getClassLoader()
+					.getResources("META-INF/MANIFEST.MF");
+			Properties manifest = new Properties();
+			while (resources.hasMoreElements()) {
+				URL url = resources.nextElement();
+				manifest.load(url.openStream());
+				String version = manifest.getProperty("KCauldron-Version");
+				if (version != null) {
+					String path = url.getPath();
+				    String jarFilePath = path.substring(path.indexOf(":") + 1, path.indexOf("!"));
+				    jarFilePath = URLDecoder.decode(jarFilePath, "UTF-8");
+				    sServerLocation = new File(jarFilePath);
+					return sCurrentVersion = version;
+				}
+				manifest.clear();
+			}
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+		return sCurrentVersion = "UNKNOWN";
+	}
+
+	private static File sServerLocation;
+
+	public static File getServerLocation() {
+		getCurrentVersion();
+		return sServerLocation;
+	}
+	
+	public static File sNewServerLocation;
+	public static String sNewServerVersion;
+	public static boolean sUpdateInProgress;
+}