| author | František Kučera <franta-hg@frantovo.cz> |
| Mon, 17 Oct 2011 21:11:59 +0200 | |
| changeset 93 | 3009cb0be547 |
| parent 45 | 7e24949b87b0 |
| permissions | -rwxr-xr-x |
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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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* Provides access to a storage backend. |
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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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|
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public static Storage current() throws StorageBackendException {
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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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|
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public static StorageProvider loadProvider(String pluginClassName) {
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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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/** |
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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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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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/** |
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* Disables the current provider. |
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*/ |
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public static void disableProvider() {
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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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} |