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Java > Open Source Codes > org > opencms > validation > I_CmsXmlDocumentLinkValidatable


1 /*
2  * File : $Source: /usr/local/cvs/opencms/src/org/opencms/validation/I_CmsXmlDocumentLinkValidatable.java,v $
3  * Date : $Date: 2005/06/23 11:11:43 $
4  * Version: $Revision: 1.5 $
5  *
6  * This library is part of OpenCms -
7  * the Open Source Content Mananagement System
8  *
9  * Copyright (c) 2005 Alkacon Software GmbH (http://www.alkacon.com)
10  *
11  * This library is free software; you can redistribute it and/or
12  * modify it under the terms of the GNU Lesser General Public
13  * License as published by the Free Software Foundation; either
14  * version 2.1 of the License, or (at your option) any later version.
15  *
16  * This library is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19  * Lesser General Public License for more details.
20  *
21  * For further information about Alkacon Software GmbH, please see the
22  * company website: http://www.alkacon.com
23  *
24  * For further information about OpenCms, please see the
25  * project website: http://www.opencms.org
26  *
27  * You should have received a copy of the GNU Lesser General Public
28  * License along with this library; if not, write to the Free Software
29  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30  */

31
32 package org.opencms.validation;
33
34 import org.opencms.file.CmsObject;
35 import org.opencms.file.CmsResource;
36
37 import java.util.List JavaDoc;
38
39 /**
40  * HTML link validation of a Cms file is enabled if the file's resource type implements the
41  * interface I_CmsHtmlLinkValidatable. Cms files with resource types that do not implement
42  * this interface don't get validated on broken links for example when a project gets published.
43  * Thus, this interface serves to identify "validatable" Cms files in the OpenCms VFS.<p>
44  *
45  * HTML links are considered as href attribs in anchor tags and src attribs in image tags.<p>
46  *
47  * @author Thomas Weckert
48  *
49  * @version $Revision: 1.5 $
50  *
51  * @since 6.0.0
52  */

53 public interface I_CmsXmlDocumentLinkValidatable {
54
55     /**
56      * Returns a list with the Cms URIs of all linked resources (either via href attribs or img
57      * tags) in the (body) content of the specified Cms resource.<p>
58      *
59      * Implementations of this method must return an empty list, or better
60      * {@link java.util.Collections#EMPTY_LIST}, if no links are found at all.<p>
61      *
62      * Second, implementations of this method are responsible to filter out any "external" URLs
63      * pointing to targets outside the OpenCms VFS (http, https, mailto, ftp etc.) from the result
64      * list.<p>
65      *
66      * @param cms the current user's Cms object
67      * @param resource a CmsResource with links
68      * @return a list with the URIs of all linked resources (either via href attribs or img tags)
69      */

70     List JavaDoc findLinks(CmsObject cms, CmsResource resource);
71
72 }
73
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