Created the ConfigurationManager.java

src/main/java/de/gnmyt/mcdash/api/ConfigurationManager.java

@@ -0,0 +1,41 @@
+package de.gnmyt.mcdash.api;
+
+import java.io.IOException;
+import java.net.URL;
+import java.util.Enumeration;
+import java.util.jar.Manifest;
+
+public class ConfigurationManager {
+
+    private static final Logger LOG = new Logger(ConfigurationManager.class);
+    private String version = null;
+
+    /**
+     * Gets the version of the MCDash wrapper
+     * @return the version of the MCDash wrapper
+     */
+    public String getVersion() {
+        if (version != null) {
+            return version;
+        }
+
+        try {
+            Enumeration<URL> resources = getClass().getClassLoader()
+                    .getResources("META-INF/MANIFEST.MF");
+
+            while (resources.hasMoreElements()) {
+                Manifest manifest = new Manifest(resources.nextElement().openStream());
+                version = manifest.getMainAttributes().getValue("Version");
+                if (version != null) {
+                    return version;
+                }
+            }
+
+        } catch (IOException e) {
+            LOG.warn("Could not read version from manifest file: {}", e.getMessage());
+        }
+
+        return "DEVELOPMENT";
+    }
+
+}