Save This Page
1 /*
2 * JBoss, Home of Professional Open Source.
3 * Copyright 2007, Red Hat Middleware LLC, and individual contributors
4 * as indicated by the @author tags. See the copyright.txt file in the
5 * distribution for a full listing of individual contributors.
6 *
7 * This is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU Lesser General Public License as
9 * published by the Free Software Foundation; either version 2.1 of
10 * the License, or (at your option) any later version.
11 *
12 * This software is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this software; if not, write to the Free
19 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21 */
22 package org.jboss.deployers.vfs.spi.client;
23
24 import java.security.AccessController;
25
26 import org.jboss.util.builder.AbstractBuilder;
27
28 /**
29 * VFSDeploymentBuilder.
30 *
31 * @author <a href="adrian@jboss.org">Adrian Brock</a>
32 * @version $Revision: 1.1 $
33 */
34 class VFSDeploymentBuilder
35 {
36 /** The default attachments builder */
37 private static String DEFAULT_FACTORY = "org.jboss.deployers.vfs.plugins.client.DefaultVFSDeploymentFactory";
38
39 /** The singleton */
40 private static VFSDeploymentFactory singleton;
41
42 /**
43 * Get the instance
44 *
45 * @return the instance
46 */
47 static synchronized VFSDeploymentFactory getInstance()
48 {
49 if (singleton == null)
50 {
51 AbstractBuilder<VFSDeploymentFactory> builder = new AbstractBuilder<VFSDeploymentFactory>(VFSDeploymentFactory.class, DEFAULT_FACTORY);
52 singleton = AccessController.doPrivileged(builder);
53 }
54 return singleton;
55 }
56 }