KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > jboss > virtual > plugins > vfs > helpers > WrappingVirtualFileHandlerVisitor


1 /*
2 * JBoss, Home of Professional Open Source
3 * Copyright 2006, JBoss Inc., and individual contributors as indicated
4 * by the @authors tag. See the copyright.txt in the distribution for a
5 * 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.virtual.plugins.vfs.helpers;
23
24 import org.jboss.virtual.VirtualFile;
25 import org.jboss.virtual.VirtualFileVisitor;
26 import org.jboss.virtual.VisitorAttributes;
27 import org.jboss.virtual.spi.VirtualFileHandler;
28 import org.jboss.virtual.spi.VirtualFileHandlerVisitor;
29
30 /**
31  * A handler visitor that wraps a normal file visitor
32  *
33  * @author <a HREF="adrian@jboss.com">Adrian Brock</a>
34  * @version $Revision: 1.1 $
35  */
36 public class WrappingVirtualFileHandlerVisitor implements VirtualFileHandlerVisitor
37 {
38    /** The wrapped visitor */
39    private final VirtualFileVisitor visitor;
40    
41    /**
42     * Create a new WrappingVirtualFileHandlerVisitor.
43     *
44     * @param visitor the visitor
45     * @throws IllegalArgumentException if the visitor is null
46     */
47    public WrappingVirtualFileHandlerVisitor(VirtualFileVisitor visitor)
48    {
49       if (visitor == null)
50          throw new IllegalArgumentException JavaDoc("Null visitor");
51       this.visitor = visitor;
52    }
53    
54    public VisitorAttributes getAttributes()
55    {
56       return visitor.getAttributes();
57    }
58
59    public void visit(VirtualFileHandler handler)
60    {
61       VirtualFile file = handler.getVirtualFile();
62       visitor.visit(file);
63    }
64 }
65
Popular Tags