chris@1: /*
chris@1:  *   SONEWS News Server
chris@1:  *   see AUTHORS for the list of contributors
chris@1:  *
chris@1:  *   This program is free software: you can redistribute it and/or modify
chris@1:  *   it under the terms of the GNU General Public License as published by
chris@1:  *   the Free Software Foundation, either version 3 of the License, or
chris@1:  *   (at your option) any later version.
chris@1:  *
chris@1:  *   This program is distributed in the hope that it will be useful,
chris@1:  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
chris@1:  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
chris@1:  *   GNU General Public License for more details.
chris@1:  *
chris@1:  *   You should have received a copy of the GNU General Public License
chris@1:  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
chris@1:  */
chris@1: 
chris@1: package org.sonews.daemon;
chris@1: 
chris@1: import org.sonews.util.Log;
chris@1: import java.sql.SQLException;
chris@1: import org.sonews.daemon.storage.Database;
chris@1: import org.sonews.util.AbstractConfig;
chris@1: import org.sonews.util.TimeoutMap;
chris@1: 
chris@1: /**
chris@1:  * Provides access to the program wide configuration that is stored within
chris@1:  * the server's database.
chris@1:  * @author Christian Lins
chris@1:  * @since sonews/0.5.0
chris@1:  */
chris@1: public final class Config extends AbstractConfig
chris@1: {
chris@1: 
chris@1:   /** Config key constant. Value is the maximum article size in kilobytes. */
chris@1:   public static final String ARTICLE_MAXSIZE   = "sonews.article.maxsize";
chris@1:   
chris@1:   /** Config key constant. Value: Amount of news that are feeded per run. */
chris@1:   public static final String FEED_NEWSPERRUN   = "sonews.feed.newsperrun";
chris@1:   public static final String FEED_PULLINTERVAL = "sonews.feed.pullinterval";
chris@1:   public static final String HOSTNAME          = "sonews.hostname";
chris@1:   public static final String PORT              = "sonews.port";
chris@1:   public static final String TIMEOUT           = "sonews.timeout";
chris@1:   public static final String MLPOLL_DELETEUNKNOWN = "sonews.mlpoll.deleteunknown";
chris@1:   public static final String MLPOLL_HOST       = "sonews.mlpoll.host";
chris@1:   public static final String MLPOLL_PASSWORD   = "sonews.mlpoll.password";
chris@1:   public static final String MLPOLL_USER       = "sonews.mlpoll.user";
chris@1:   public static final String MLSEND_ADDRESS    = "sonews.mlsend.address";
chris@1:   public static final String MLSEND_RW_FROM    = "sonews.mlsend.rewrite.from";
chris@1:   public static final String MLSEND_RW_SENDER  = "sonews.mlsend.rewrite.sender";
chris@1:   public static final String MLSEND_HOST       = "sonews.mlsend.host";
chris@1:   public static final String MLSEND_PASSWORD   = "sonews.mlsend.password";
chris@1:   public static final String MLSEND_PORT       = "sonews.mlsend.port";
chris@1:   public static final String MLSEND_USER       = "sonews.mlsend.user";
chris@1:   
chris@1:   public static final String[] AVAILABLE_KEYS = {
chris@1:     Config.ARTICLE_MAXSIZE,
chris@1:     Config.FEED_NEWSPERRUN,
chris@1:     Config.FEED_PULLINTERVAL,
chris@1:     Config.HOSTNAME,
chris@1:     Config.MLPOLL_DELETEUNKNOWN,
chris@1:     Config.MLPOLL_HOST,
chris@1:     Config.MLPOLL_PASSWORD,
chris@1:     Config.MLPOLL_USER,
chris@1:     Config.MLSEND_ADDRESS,
chris@1:     Config.MLSEND_HOST,
chris@1:     Config.MLSEND_PASSWORD,
chris@1:     Config.MLSEND_PORT,
chris@1:     Config.MLSEND_RW_FROM,
chris@1:     Config.MLSEND_RW_SENDER,
chris@1:     Config.MLSEND_USER,
chris@1:     Config.PORT,
chris@1:     Config.TIMEOUT
chris@1:   };
chris@1: 
chris@1:   private static Config instance = new Config();
chris@1:   
chris@1:   public static Config getInstance()
chris@1:   {
chris@1:     return instance;
chris@1:   }
chris@1:   
chris@1:   private final TimeoutMap<String, String> values 
chris@1:     = new TimeoutMap<String, String>();
chris@1:   
chris@1:   private Config()
chris@1:   {
chris@1:     super();
chris@1:   }
chris@1:   
chris@1:   /**
chris@1:    * Returns the config value for the given key or the defaultValue if the
chris@1:    * key is not found in config.
chris@1:    * @param key
chris@1:    * @param defaultValue
chris@1:    * @return
chris@1:    */
chris@1:   public String get(String key, String defaultValue)
chris@1:   {
chris@1:     try
chris@1:     {
chris@1:       String configValue = values.get(key);
chris@1:       if(configValue == null)
chris@1:       {
chris@1:         configValue = Database.getInstance().getConfigValue(key);
chris@1:         if(configValue == null)
chris@1:         {
chris@1:           return defaultValue;
chris@1:         }
chris@1:         else
chris@1:         {
chris@1:           values.put(key, configValue);
chris@1:           return configValue;
chris@1:         }
chris@1:       }
chris@1:       else
chris@1:       {
chris@1:         return configValue;
chris@1:       }
chris@1:     }
chris@1:     catch(SQLException ex)
chris@1:     {
chris@1:       Log.msg(ex.getMessage(), false);
chris@1:       return defaultValue;
chris@1:     }
chris@1:   }
chris@1:   
chris@1:   /**
chris@1:    * Sets the config value which is identified by the given key.
chris@1:    * @param key
chris@1:    * @param value
chris@1:    */
chris@1:   public void set(String key, String value)
chris@1:   {
chris@1:     values.put(key, value);
chris@1:     
chris@1:     try
chris@1:     {
chris@1:       // Write values to database
chris@1:       Database.getInstance().setConfigValue(key, value);
chris@1:     }
chris@1:     catch(SQLException ex)
chris@1:     {
chris@1:       ex.printStackTrace();
chris@1:     }
chris@1:   }
chris@1:   
chris@1: }