diff -r 000000000000 -r f907866f0e4b trunk/com/so/news/storage/Purger.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/trunk/com/so/news/storage/Purger.java	Tue Jan 20 10:21:03 2009 +0100
@@ -0,0 +1,96 @@
+/*
+ *   StarOffice News Server
+ *   see AUTHORS for the list of contributors
+ *
+ *   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
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program 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 General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.so.news.storage;
+
+import java.util.Date;
+
+import com.so.news.Config;
+import com.so.news.Debug;
+
+/**
+ * The purger is started in configurable intervals to search
+ * for old messages that can be purged.
+ * @author Christian Lins
+ */
+public class Purger extends Thread
+{
+  private int interval;
+  
+  public Purger()
+  {
+    setDaemon(true); // Daemons run only along with the main thread
+    setPriority(Thread.MIN_PRIORITY);
+
+    this.interval = Config.getInstance().get("n3tpd.article.lifetime", 30) * 24 * 60 * 60 * 1000; // Milliseconds
+    if(this.interval < 0)
+      this.interval = Integer.MAX_VALUE;
+  }
+  
+  /**
+   * Runloop of this Purger class.
+   */
+  @Override
+  public void run()
+  {
+    for(;;)
+    {
+      purge();
+
+      try
+      {
+        sleep(interval);
+      }
+      catch(InterruptedException e)
+      {
+        e.printStackTrace(Debug.getInstance().getStream());
+      }
+    }
+  }
+
+  /**
+   * Loops through all messages and deletes them if their time
+   * has come.
+   */
+  private void purge()
+  {
+    Debug.getInstance().log("Purging old messages...");
+
+    try
+    {
+      for(;;)
+      {
+        Article art = null; //Database.getInstance().getOldestArticle();
+        if(art == null) // No articles in the database
+          break;
+        
+        if(art.getDate().getTime() < (new Date().getTime() + this.interval))
+        {
+          Database.getInstance().delete(art);
+          Debug.getInstance().log("Deleted: " + art);
+        }
+        else
+          break;
+      }
+    }
+    catch(Exception ex)
+    {
+      ex.printStackTrace();
+    }
+  }
+}