diff -r 000000000000 -r f907866f0e4b trunk/com/so/news/Config.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/trunk/com/so/news/Config.java	Tue Jan 20 10:21:03 2009 +0100
@@ -0,0 +1,198 @@
+/*
+ *   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;
+
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.util.Properties;
+
+/**
+ * Manages the n3tpd configuration.
+ * @author Christian Lins
+ */
+public class Config
+{
+  /** The filename of the logfile */
+  public static final String CONFIG_N3TPD_LOGFILE = "n3tpd.logfile";
+  
+  /** The filename of the config file that is loaded on startup */
+  public static final String FILE                 = "n3tpd.conf";
+
+  private static final Properties defaultConfig = new Properties();
+  
+  private static Config instance = null;
+  
+  static
+  {
+    // Set some default values
+    defaultConfig.setProperty("n3tpd.article.lifetime", "300"); // 300 days
+    defaultConfig.setProperty("n3tpd.article.maxsize", "100");  // 100 kbyte
+    defaultConfig.setProperty("n3tpd.port", "119");
+    defaultConfig.setProperty("n3tpd.auxport", "8080");
+    defaultConfig.setProperty("n3tpd.server.backlog", "10");
+    defaultConfig.setProperty("n3tpd.hostname", "localhost");
+    defaultConfig.setProperty("n3tpd.storage.database", "jdbc:mysql://localhost/n3tpd_data");
+    defaultConfig.setProperty("n3tpd.storage.dbmsdriver", "com.mysql.jdbc.Driver");
+    defaultConfig.setProperty("n3tpd.storage.user", "n3tpd_user");
+    defaultConfig.setProperty("n3tpd.storage.password", "mysecret");
+    
+    instance = new Config();
+  }
+  
+  /**
+   * @return A Config instance
+   */
+  public static Config getInstance()
+  {
+    return instance;
+  }
+
+  // Every config instance is initialized with the default values.
+  private Properties settings = (Properties)defaultConfig.clone();
+
+  /**
+   * Config is a singelton class with only one instance at time.
+   * So the constructor is private to prevent the creation of more
+   * then one Config instance.
+   * @see Config.getInstance() to retrieve an instance of Config
+   */
+  private Config()
+  {
+    try
+    {
+      // Load settings from file
+      load();
+    }
+    catch(IOException e)
+    {
+      e.printStackTrace();
+    }
+  }
+
+  /**
+   * Loads the configuration from the config file. By default this is done
+   * by the (private) constructor but it can be useful to reload the config
+   * by invoking this method.
+   * @throws IOException
+   */
+  public void load() throws IOException
+  {
+    try
+    {
+      settings.load(new FileInputStream(FILE));
+    }
+    catch (FileNotFoundException e)
+    {
+      save();
+    }
+  }
+
+  /**
+   * Saves this Config to the config file. By default this is done
+   * at program end.
+   * @throws FileNotFoundException
+   * @throws IOException
+   */
+  public void save() throws FileNotFoundException, IOException
+  {
+    settings.store(new FileOutputStream(FILE), "N3TPD Config File");
+  }
+  
+  /**
+   * Returns the value that is stored within this config
+   * identified by the given key. If the key cannot be found
+   * the default value is returned.
+   * @param key Key to identify the value.
+   * @param def The default value that is returned if the key
+   * is not found in this Config.
+   * @return
+   */
+  public String get(String key, String def)
+  {
+    return settings.getProperty(key, def);
+  }
+
+  /**
+   * Returns the value that is stored within this config
+   * identified by the given key. If the key cannot be found
+   * the default value is returned.
+   * @param key Key to identify the value.
+   * @param def The default value that is returned if the key
+   * is not found in this Config.
+   * @return
+   */
+  public int get(String key, int def)
+  {
+    try
+    {
+      String val = get(key);
+      return Integer.parseInt(val);
+    }
+    catch(Exception e)
+    {
+      return def;
+    }
+  }
+  
+  /**
+   * Returns the value that is stored within this config
+   * identified by the given key. If the key cannot be found
+   * the default value is returned.
+   * @param key Key to identify the value.
+   * @param def The default value that is returned if the key
+   * is not found in this Config.
+   * @return
+   */
+  public long get(String key, long def)
+  {
+    try
+    {
+      String val = get(key);
+      return Long.parseLong(val);
+    }
+    catch(Exception e)
+    {
+      return def;
+    }
+  }
+
+  /**
+   * Returns the value for the given key or null if the
+   * key is not found in this Config.
+   * @param key
+   * @return
+   */
+  private String get(String key)
+  {
+    return settings.getProperty(key);
+  }
+
+  /**
+   * Sets the value for a given key.
+   * @param key
+   * @param value
+   */
+  public void set(String key, String value)
+  {
+    settings.setProperty(key, value);
+  }
+
+}