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Java > Open Source Codes > org > jboss > deployers > plugins > attachments > AttachmentsImpl


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.deployers.plugins.attachments;
23
24 import java.util.Collections JavaDoc;
25 import java.util.Map JavaDoc;
26 import java.util.concurrent.ConcurrentHashMap JavaDoc;
27
28 /**
29  * Attachments implementation
30  *
31  * @author <a HREF="adrian@jboss.com">Adrian Brock</a>
32  * @version $Revision: 1.1 $
33  */
34 public class AttachmentsImpl extends AbstractAttachments
35 {
36    /** The attachments */
37    private Map JavaDoc<String JavaDoc, Object JavaDoc> attachments = new ConcurrentHashMap JavaDoc<String JavaDoc, Object JavaDoc>();
38
39    public Map JavaDoc<String JavaDoc, Object JavaDoc> getAttachments()
40    {
41       return Collections.unmodifiableMap(attachments);
42    }
43
44    public Object JavaDoc addAttachment(String JavaDoc name, Object JavaDoc attachment)
45    {
46       if (name == null)
47          throw new IllegalArgumentException JavaDoc("Null name");
48       if (attachment == null)
49          throw new IllegalArgumentException JavaDoc("Null attachment");
50       return attachments.put(name, attachment);
51    }
52
53    public Object JavaDoc getAttachment(String JavaDoc name)
54    {
55       if (name == null)
56          throw new IllegalArgumentException JavaDoc("Null name");
57       return attachments.get(name);
58    }
59
60    public boolean isAttachmentPresent(String JavaDoc name)
61    {
62       if (name == null)
63          throw new IllegalArgumentException JavaDoc("Null name");
64       return attachments.containsKey(name);
65    }
66
67    public Object JavaDoc removeAttachment(String JavaDoc name)
68    {
69       if (name == null)
70          throw new IllegalArgumentException JavaDoc("Null name");
71       return attachments.remove(name);
72    }
73
74    public void clear()
75    {
76       attachments.clear();
77    }
78 }
79
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