chris@3: /* chris@3: * SONEWS News Server chris@3: * see AUTHORS for the list of contributors chris@3: * chris@3: * This program is free software: you can redistribute it and/or modify chris@3: * it under the terms of the GNU General Public License as published by chris@3: * the Free Software Foundation, either version 3 of the License, or chris@3: * (at your option) any later version. chris@3: * chris@3: * This program is distributed in the hope that it will be useful, chris@3: * but WITHOUT ANY WARRANTY; without even the implied warranty of chris@3: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the chris@3: * GNU General Public License for more details. chris@3: * chris@3: * You should have received a copy of the GNU General Public License chris@3: * along with this program. If not, see . chris@3: */ chris@3: chris@3: package org.sonews.config; chris@3: chris@3: import org.sonews.util.Log; chris@3: import org.sonews.storage.StorageBackendException; chris@3: import org.sonews.storage.StorageManager; chris@3: import org.sonews.util.TimeoutMap; chris@3: chris@3: /** chris@3: * Provides access to the program wide configuration that is stored within chris@3: * the server's database. chris@3: * @author Christian Lins chris@3: * @since sonews/0.5.0 chris@3: */ chris@3: class BackendConfig extends AbstractConfig chris@3: { chris@3: chris@3: private static BackendConfig instance = new BackendConfig(); chris@3: chris@3: public static BackendConfig getInstance() chris@3: { chris@3: return instance; chris@3: } chris@3: chris@3: private final TimeoutMap values chris@3: = new TimeoutMap(); chris@3: chris@3: private BackendConfig() chris@3: { chris@3: super(); chris@3: } chris@3: chris@3: /** chris@3: * Returns the config value for the given key or the defaultValue if the chris@3: * key is not found in config. chris@3: * @param key chris@3: * @param defaultValue chris@3: * @return chris@3: */ chris@3: @Override chris@3: public String get(String key, String defaultValue) chris@3: { chris@3: try chris@3: { chris@3: String configValue = values.get(key); chris@3: if(configValue == null) chris@3: { cli@12: if(StorageManager.current() == null) cli@12: { cli@12: Log.msg("Warning: BackendConfig not available, using default.", false); cli@12: return defaultValue; cli@12: } cli@12: chris@3: configValue = StorageManager.current().getConfigValue(key); chris@3: if(configValue == null) chris@3: { chris@3: return defaultValue; chris@3: } chris@3: else chris@3: { chris@3: values.put(key, configValue); chris@3: return configValue; chris@3: } chris@3: } chris@3: else chris@3: { chris@3: return configValue; chris@3: } chris@3: } chris@3: catch(StorageBackendException ex) chris@3: { chris@3: Log.msg(ex.getMessage(), false); chris@3: return defaultValue; chris@3: } chris@3: } chris@3: chris@3: /** chris@3: * Sets the config value which is identified by the given key. chris@3: * @param key chris@3: * @param value chris@3: */ chris@3: public void set(String key, String value) chris@3: { chris@3: values.put(key, value); chris@3: chris@3: try chris@3: { chris@3: // Write values to database chris@3: StorageManager.current().setConfigValue(key, value); chris@3: } chris@3: catch(StorageBackendException ex) chris@3: { chris@3: ex.printStackTrace(); chris@3: } chris@3: } chris@3: chris@3: }