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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.storage;
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/**
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*
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* @author Christian Lins
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* @since sonews/1.0
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*/
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public final class StorageManager
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{
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private static StorageProvider provider;
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public static Storage current()
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throws StorageBackendException
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{
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synchronized (StorageManager.class) {
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if (provider == null) {
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return null;
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} else {
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return provider.storage(Thread.currentThread());
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}
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}
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}
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public static StorageProvider loadProvider(String pluginClassName)
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{
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try {
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Class<?> clazz = Class.forName(pluginClassName);
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Object inst = clazz.newInstance();
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return (StorageProvider) inst;
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} catch (Exception ex) {
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System.err.println(ex);
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return null;
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}
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}
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/**
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* Sets the current storage provider.
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* @param provider
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*/
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public static void enableProvider(StorageProvider provider)
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{
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synchronized (StorageManager.class) {
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if (StorageManager.provider != null) {
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disableProvider();
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}
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StorageManager.provider = provider;
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}
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}
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/**
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* Disables the current provider.
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*/
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public static void disableProvider()
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{
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synchronized (StorageManager.class) {
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provider = null;
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}
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}
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}
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