Added SystemPropertyUtil

src/main/java/org/jboss/netty/util/DebugUtil.java

@@ -41,7 +41,7 @@ public class DebugUtil {
     public static boolean isDebugEnabled() {
         String value;
         try {
-            value = System.getProperty("org.jboss.netty.debug");
+            value = SystemPropertyUtil.get("org.jboss.netty.debug");
         } catch (Exception e) {
             value = null;
         }

src/main/java/org/jboss/netty/util/SystemPropertyUtil.java

@@ -0,0 +1,53 @@
+/*
+ * JBoss, Home of Professional Open Source
+ *
+ * Copyright 2008, Red Hat Middleware LLC, and individual contributors
+ * by the @author tags. See the COPYRIGHT.txt in the distribution for a
+ * full listing of individual contributors.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this software; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
+ */
+package org.jboss.netty.util;
+
+/**
+ * @author The Netty Project (netty-dev@lists.jboss.org)
+ * @author Trustin Lee (tlee@redhat.com)
+ *
+ * @version $Rev$, $Date$
+ *
+ */
+public class SystemPropertyUtil {
+
+    public static String get(String key) {
+        try {
+            return System.getProperty(key);
+        } catch (Exception e) {
+            return null;
+        }
+    }
+
+    public static String get(String key, String def) {
+        String value = get(key);
+        if (value == null) {
+            value = def;
+        }
+        return value;
+    }
+
+    private SystemPropertyUtil() {
+        // Unused
+    }
+}

src/main/java/org/jboss/netty/util/TimeBasedUuidGenerator.java

@@ -116,15 +116,7 @@ public class TimeBasedUuidGenerator {
 
     private static void appendSystemProperty(StringBuilder buf, String key) {
         buf.append(':');
-        buf.append(getSystemProperty(key));
-    }
-
-    private static String getSystemProperty(String key) {
-        try {
-            return System.getProperty(key, "null");
-        } catch (Exception e) {
-            return "null";
-        }
+        buf.append(SystemPropertyUtil.get(key, "null"));
     }
 
     /**