org/sonews/config/Config.java
author cli
Sun, 29 Aug 2010 17:04:25 +0200
changeset 34 9f0b95aafaa3
parent 32 3af4237e4a15
permissions -rw-r--r--
Merge heads.
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/*
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 *   SONEWS News Server
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 *   see AUTHORS for the list of contributors
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 *
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 *   This program is free software: you can redistribute it and/or modify
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 *   it under the terms of the GNU General Public License as published by
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 *   the Free Software Foundation, either version 3 of the License, or
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 *   (at your option) any later version.
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 *
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 *   This program is distributed in the hope that it will be useful,
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 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *   GNU General Public License for more details.
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 *
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 *   You should have received a copy of the GNU General Public License
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 *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
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 */
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package org.sonews.config;
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/**
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 * Configuration facade class.
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 * @author Christian Lins
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 * @since sonews/1.0
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 */
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public class Config extends AbstractConfig
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{
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  public static final int LEVEL_CLI     = 1;
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  public static final int LEVEL_FILE    = 2;
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  public static final int LEVEL_BACKEND = 3;
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  public static final String CONFIGFILE = "sonews.configfile";
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    /** BackendConfig key constant. Value is the maximum article size in kilobytes. */
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  public static final String ARTICLE_MAXSIZE   = "sonews.article.maxsize";
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  /** BackendConfig key constant. Value: Amount of news that are feeded per run. */
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  public static final String EVENTLOG          = "sonews.eventlog";
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  public static final String FEED_NEWSPERRUN   = "sonews.feed.newsperrun";
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  public static final String FEED_PULLINTERVAL = "sonews.feed.pullinterval";
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  public static final String HOSTNAME          = "sonews.hostname";
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  public static final String PORT              = "sonews.port";
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  public static final String TIMEOUT           = "sonews.timeout";
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  public static final String LOGLEVEL          = "sonews.loglevel";
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  public static final String MLPOLL_DELETEUNKNOWN = "sonews.mlpoll.deleteunknown";
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  public static final String MLPOLL_HOST       = "sonews.mlpoll.host";
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  public static final String MLPOLL_PASSWORD   = "sonews.mlpoll.password";
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  public static final String MLPOLL_USER       = "sonews.mlpoll.user";
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  public static final String MLSEND_ADDRESS    = "sonews.mlsend.address";
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  public static final String MLSEND_RW_FROM    = "sonews.mlsend.rewrite.from";
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  public static final String MLSEND_RW_SENDER  = "sonews.mlsend.rewrite.sender";
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  public static final String MLSEND_HOST       = "sonews.mlsend.host";
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  public static final String MLSEND_PASSWORD   = "sonews.mlsend.password";
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  public static final String MLSEND_PORT       = "sonews.mlsend.port";
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  public static final String MLSEND_USER       = "sonews.mlsend.user";
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  /** Key constant. If value is "true" every I/O is written to logfile
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   * (which is a lot!)
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   */
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  public static final String DEBUG              = "sonews.debug";
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  /** Key constant. Value is classname of the JDBC driver */
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  public static final String STORAGE_DBMSDRIVER = "sonews.storage.dbmsdriver";
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  /** Key constant. Value is JDBC connect String to the database. */
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  public static final String STORAGE_DATABASE   = "sonews.storage.database";
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  /** Key constant. Value is the username for the DBMS. */
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  public static final String STORAGE_USER       = "sonews.storage.user";
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  /** Key constant. Value is the password for the DBMS. */
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  public static final String STORAGE_PASSWORD   = "sonews.storage.password";
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  /** Key constant. Value is the name of the host which is allowed to use the
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   *  XDAEMON command; default: "localhost" */
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  public static final String XDAEMON_HOST       = "sonews.xdaemon.host";
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  /** The config key for the filename of the logfile */
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  public static final String LOGFILE = "sonews.log";
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  public static final String[] AVAILABLE_KEYS = {
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      ARTICLE_MAXSIZE,
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      EVENTLOG,
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      FEED_NEWSPERRUN,
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      FEED_PULLINTERVAL,
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      HOSTNAME,
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      MLPOLL_DELETEUNKNOWN,
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      MLPOLL_HOST,
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      MLPOLL_PASSWORD,
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      MLPOLL_USER,
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      MLSEND_ADDRESS,
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      MLSEND_HOST,
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      MLSEND_PASSWORD,
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      MLSEND_PORT,
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      MLSEND_RW_FROM,
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      MLSEND_RW_SENDER,
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      MLSEND_USER,
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      PORT,
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      TIMEOUT,
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      XDAEMON_HOST
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  };
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  private static Config instance = new Config();
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  public static Config inst()
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  {
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    return instance;
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  }
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  private Config(){}
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  @Override
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  public String get(String key, String def)
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  {
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    String val = CommandLineConfig.getInstance().get(key, null);
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    if(val == null)
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    {
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      val = FileConfig.getInstance().get(key, null);
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    }
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    if(val == null)
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    {
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      val = BackendConfig.getInstance().get(key, def);
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    }
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    return val;
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  }
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  public String get(int maxLevel, String key, String def)
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  {
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    String val = CommandLineConfig.getInstance().get(key, null);
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    if(val == null && maxLevel >= LEVEL_FILE)
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    {
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      val = FileConfig.getInstance().get(key, null);
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      if(val == null && maxLevel >= LEVEL_BACKEND)
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      {
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        val = BackendConfig.getInstance().get(key, def);
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      }
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    }
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    return val != null ? val : def;
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  }
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  @Override
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  public void set(String key, String val)
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  {
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    set(LEVEL_BACKEND, key, val);
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  }
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  public void set(int level, String key, String val)
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  {
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    switch(level)
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    {
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      case LEVEL_CLI:
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      {
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        CommandLineConfig.getInstance().set(key, val);
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        break;
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      }
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      case LEVEL_FILE:
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      {
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        FileConfig.getInstance().set(key, val);
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        break;
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      }
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      case LEVEL_BACKEND:
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      {
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        BackendConfig.getInstance().set(key, val);
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        break;
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      }
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    }
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  }
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}