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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.cms.security;
35  
36  import info.magnolia.context.MgnlContext;
37  import info.magnolia.context.MgnlContext.Op;
38  
39  import javax.jcr.RepositoryException;
40  import javax.jcr.Session;
41  
42  import org.slf4j.Logger;
43  import org.slf4j.LoggerFactory;
44  
45  /**
46   * Session operation that just logs all exceptions instead of re-throwing them.
47   * @author had
48   * @version $Id: $
49   * @param <R>
50   */
51  public abstract class SilentSessionOp<R> implements Op<R, RuntimeException> {
52  
53      protected static final Logger log = LoggerFactory.getLogger(JCRSessionOp.class);
54  
55      private final String repository;
56  
57      public SilentSessionOp(String repository) {
58          this.repository = repository;
59      }
60  
61      @Override
62      public R exec() {
63          Session session = null;
64          try {
65              // can't do ... need a session before repo is setup and IoC is initialized ...
66              session = MgnlContext.getJCRSession(repository);
67          } catch (RepositoryException e) {
68              log.error("failed to retrieve repository " + repository + " with " + e.getMessage(), e);
69          }
70          try {
71              return doExec(session);
72          } catch (Throwable t) {
73              log.error("Failed to execute " + toString() + " session operation with " + t.getMessage(), t);
74              return null;
75          }
76      }
77  
78      public abstract R doExec(Session session) throws Throwable;
79  }