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1   /**
2    * This file Copyright (c) 2010-2015 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.imaging.parameters;
35  
36  import info.magnolia.context.MgnlContext;
37  import info.magnolia.imaging.ParameterProvider;
38  import info.magnolia.imaging.ParameterProviderFactory;
39  import info.magnolia.imaging.util.PathSplitter;
40  
41  import javax.jcr.RepositoryException;
42  import javax.jcr.Session;
43  import javax.servlet.http.HttpServletRequest;
44  
45  /**
46   * AbstractWorkspaceAndUuidParameterProviderFactory. This class extracts workspace and uuid from the path.
47   * Everything after the uuid is ignored so that one can pass e.g. a properly named filename to the image.
48   *
49   * @param <PT> type of ParameterProvider's parameter
50   * @deprecated since 3.2 - use {@link info.magnolia.imaging.parameters.AbstractWorkspaceAndIdentifierParameterProviderFactory} instead.
51   */
52  @Deprecated
53  public abstract class AbstractWorkspaceAndUuidParameterProviderFactory<PT> implements ParameterProviderFactory<HttpServletRequest, PT> {
54  
55      private boolean trimExtension = true;
56  
57      @Override
58      public ParameterProvider<PT> newParameterProviderFor(HttpServletRequest request) {
59          String pathInfo = request.getPathInfo();
60          if (pathInfo == null) {
61              throw new IllegalArgumentException("Can't determine node, no pathInfo is available for uri " + request.getRequestURI());
62          }
63  
64          // TODO - here we assume that the first path element is the ImageGenerator name, which is in fact something that is currently the business of the ImagingServlet.
65          // Can we do better ?
66          final PathSplitter pathSplitter = new PathSplitter(pathInfo, trimExtension);
67          if (pathSplitter.count() < 2) {
68              throw new IllegalArgumentException("Can't determine node from pathInfo: " + pathInfo);
69  
70          }
71          final String workspaceName = pathSplitter.skipTo(1);
72          final String uuid = pathSplitter.skipTo(2);
73  
74          try {
75              final Session session = MgnlContext.getJCRSession(workspaceName);
76              return newParameterProviderForUuid(session, uuid);
77          } catch (RepositoryException e) {
78              throw new RuntimeException("Can't load source from " + uuid + " from workspace " + workspaceName, e); // TODO
79          }
80      }
81  
82      abstract protected ParameterProvider<PT> newParameterProviderForUuid(Session session, String uuid) throws RepositoryException;
83  
84      public void setTrimExtension(boolean trimExtension) {
85          this.trimExtension = trimExtension;
86      }
87  
88  }