1 /**
2 * This file Copyright (c) 2011 Magnolia International
3 * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4 *
5 *
6 * This file is dual-licensed under both the Magnolia
7 * Network Agreement and the GNU General Public License.
8 * You may elect to use one or the other of these licenses.
9 *
10 * This file is distributed in the hope that it will be
11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14 * Redistribution, except as permitted by whichever of the GPL
15 * or MNA you select, is prohibited.
16 *
17 * 1. For the GPL license (GPL), you can redistribute and/or
18 * modify this file under the terms of the GNU General
19 * Public License, Version 3, as published by the Free Software
20 * Foundation. You should have received a copy of the GNU
21 * General Public License, Version 3 along with this program;
22 * if not, write to the Free Software Foundation, Inc., 51
23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24 *
25 * 2. For the Magnolia Network Agreement (MNA), this file
26 * and the accompanying materials are made available under the
27 * terms of the MNA which accompanies this distribution, and
28 * is available at http://www.magnolia-cms.com/mna.html
29 *
30 * Any modifications to this file must keep this entire header
31 * intact.
32 *
33 */
34 package info.magnolia.jcr.util;
35
36 import info.magnolia.context.MgnlContext;
37 import info.magnolia.jcr.wrapper.DelegateSessionWrapper;
38
39 import javax.jcr.Node;
40 import javax.jcr.RepositoryException;
41 import javax.jcr.Session;
42
43 import org.apache.commons.lang.StringUtils;
44 import org.slf4j.Logger;
45 import org.slf4j.LoggerFactory;
46
47 /**
48 * Session-related utility methods.
49 *
50 * @version $Id$
51 */
52 public class SessionUtil {
53
54 private final static Logger log = LoggerFactory.getLogger(SessionUtil.class);
55
56 public static boolean hasSameUnderlyingSession(Session first, Session second) {
57 return unwrap(first).equals(unwrap(second));
58 }
59
60 public static Session unwrap(Session session) {
61 return session instanceof DelegateSessionWrapper ? ((DelegateSessionWrapper) session).unwrap() : session;
62 }
63
64 /**
65 * Return the Node for the Given Path from the given repository. In case of Exception, return null.
66 */
67 public static Node getNode(String repository, String path) {
68 Node res = null;
69 Session session;
70 if (StringUtils.isBlank(repository) || StringUtils.isBlank(path)) {
71 log.debug("getNode returns null because either nodePath: '" + path + "' or repository: '" + repository
72 + "' is empty");
73 return res;
74 }
75 try {
76 session = MgnlContext.getJCRSession(repository);
77 if (session != null) {
78 res = session.getNode(path);
79 }
80 } catch (RepositoryException e) {
81 log.error("Exeption during node Search for nodePath: '" + path + "' in repository: '" + repository + "'", e);
82 }
83 return res;
84 }
85
86 /**
87 * Return the Node by the given identifier from the given repository. In case of Exception, return null.
88 */
89 public static Node getNodeByIdentifier(String repository, String id) {
90 Node res = null;
91 Session session;
92 if (StringUtils.isBlank(repository) || StringUtils.isBlank(id)) {
93 log.debug("getNode returns null because either identifier: '" + id + "' or repository: '" + repository
94 + "' is empty");
95 return res;
96 }
97 try {
98 session = MgnlContext.getJCRSession(repository);
99 if (session != null) {
100 res = session.getNodeByIdentifier(id);
101 }
102 } catch (RepositoryException e) {
103 log.error("Exeption during node Search by identifier: '" + id + "' in repository: '" + repository + "'", e);
104 }
105 return res;
106 }
107 }