| author | cli |
| Wed May 12 11:18:02 2010 +0200 (2010-05-12) | |
| changeset 31 | 087ef6fe6a1a |
| permissions | -rw-r--r-- |
| chris@3 | 1 |
/* |
| chris@3 | 2 |
* SONEWS News Server |
| chris@3 | 3 |
* see AUTHORS for the list of contributors |
| chris@3 | 4 |
* |
| chris@3 | 5 |
* This program is free software: you can redistribute it and/or modify |
| chris@3 | 6 |
* it under the terms of the GNU General Public License as published by |
| chris@3 | 7 |
* the Free Software Foundation, either version 3 of the License, or |
| chris@3 | 8 |
* (at your option) any later version. |
| chris@3 | 9 |
* |
| chris@3 | 10 |
* This program is distributed in the hope that it will be useful, |
| chris@3 | 11 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| chris@3 | 12 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| chris@3 | 13 |
* GNU General Public License for more details. |
| chris@3 | 14 |
* |
| chris@3 | 15 |
* You should have received a copy of the GNU General Public License |
| chris@3 | 16 |
* along with this program. If not, see <http://www.gnu.org/licenses/>. |
| chris@3 | 17 |
*/ |
| chris@3 | 18 |
|
| chris@3 | 19 |
package org.sonews.storage; |
| chris@3 | 20 |
|
| chris@3 | 21 |
/** |
| chris@3 | 22 |
* |
| chris@3 | 23 |
* @author Christian Lins |
| chris@3 | 24 |
* @since sonews/1.0 |
| chris@3 | 25 |
*/ |
| chris@3 | 26 |
public final class StorageManager |
| chris@3 | 27 |
{
|
| chris@3 | 28 |
|
| chris@3 | 29 |
private static StorageProvider provider; |
| chris@3 | 30 |
|
| chris@3 | 31 |
public static Storage current() |
| chris@3 | 32 |
throws StorageBackendException |
| chris@3 | 33 |
{
|
| chris@3 | 34 |
synchronized(StorageManager.class) |
| chris@3 | 35 |
{
|
| chris@3 | 36 |
if(provider == null) |
| chris@3 | 37 |
{
|
| chris@3 | 38 |
return null; |
| chris@3 | 39 |
} |
| chris@3 | 40 |
else |
| chris@3 | 41 |
{
|
| chris@3 | 42 |
return provider.storage(Thread.currentThread()); |
| chris@3 | 43 |
} |
| chris@3 | 44 |
} |
| chris@3 | 45 |
} |
| chris@3 | 46 |
|
| chris@3 | 47 |
public static StorageProvider loadProvider(String pluginClassName) |
| chris@3 | 48 |
{
|
| chris@3 | 49 |
try |
| chris@3 | 50 |
{
|
| chris@3 | 51 |
Class<?> clazz = Class.forName(pluginClassName); |
| chris@3 | 52 |
Object inst = clazz.newInstance(); |
| chris@3 | 53 |
return (StorageProvider)inst; |
| chris@3 | 54 |
} |
| chris@3 | 55 |
catch(Exception ex) |
| chris@3 | 56 |
{
|
| chris@3 | 57 |
System.err.println(ex); |
| chris@3 | 58 |
return null; |
| chris@3 | 59 |
} |
| chris@3 | 60 |
} |
| chris@3 | 61 |
|
| chris@3 | 62 |
/** |
| chris@3 | 63 |
* Sets the current storage provider. |
| chris@3 | 64 |
* @param provider |
| chris@3 | 65 |
*/ |
| chris@3 | 66 |
public static void enableProvider(StorageProvider provider) |
| chris@3 | 67 |
{
|
| chris@3 | 68 |
synchronized(StorageManager.class) |
| chris@3 | 69 |
{
|
| chris@3 | 70 |
if(StorageManager.provider != null) |
| chris@3 | 71 |
{
|
| chris@3 | 72 |
disableProvider(); |
| chris@3 | 73 |
} |
| chris@3 | 74 |
StorageManager.provider = provider; |
| chris@3 | 75 |
} |
| chris@3 | 76 |
} |
| chris@3 | 77 |
|
| chris@3 | 78 |
/** |
| chris@3 | 79 |
* Disables the current provider. |
| chris@3 | 80 |
*/ |
| chris@3 | 81 |
public static void disableProvider() |
| chris@3 | 82 |
{
|
| chris@3 | 83 |
synchronized(StorageManager.class) |
| chris@3 | 84 |
{
|
| chris@3 | 85 |
provider = null; |
| chris@3 | 86 |
} |
| chris@3 | 87 |
} |
| chris@3 | 88 |
|
| chris@3 | 89 |
} |