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1   /**
2    * This file Copyright (c) 2009-2010 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.module.cache.setup;
35  
36  import info.magnolia.cms.core.HierarchyManager;
37  import info.magnolia.cms.core.NodeData;
38  import info.magnolia.module.InstallContext;
39  import info.magnolia.module.delta.ConditionalDelegateTask;
40  import info.magnolia.module.delta.Task;
41  import info.magnolia.module.delta.TaskExecutionException;
42  
43  import javax.jcr.RepositoryException;
44  import java.util.ArrayList;
45  import java.util.Collection;
46  import java.util.Iterator;
47  import java.util.List;
48  
49  /**
50   *
51   * @version $Revision: $ ($Author: $)
52   */
53  public class DefaultCompressibleContentTypesCondition extends ConditionalDelegateTask {
54  
55      private final String checkedNodeName;
56  
57      public DefaultCompressibleContentTypesCondition(String taskName, String taskDescription, Task ifTrue, Task ifFalse, String checkedNodeName) {
58          super(taskName, taskDescription, ifTrue, ifFalse);
59          this.checkedNodeName = checkedNodeName;
60      }
61  
62      protected boolean condition(InstallContext installContext) throws TaskExecutionException {
63          try {
64              List vals = new ArrayList();
65              HierarchyManager hm = installContext.getConfigHierarchyManager();
66              if (!hm.isExist(checkedNodeName)) {
67                  // compression configuration doesn't exist, just return false
68                  return false;
69              }
70              Collection compressionList = hm.getContent(checkedNodeName).getNodeDataCollection();
71              for (Iterator iterator = compressionList.iterator(); iterator.hasNext();) {
72                  NodeData data = (NodeData) iterator.next();
73                  vals.add(data.getString());
74              }
75              return vals.remove("text/html") && vals.remove("text/css") && vals.remove("application/x-javascript") && vals.isEmpty();
76  
77          } catch (RepositoryException e) {
78              log.error(e.getMessage(), e);
79          }
80          // the node doesn't have any children or their values can't be retried. Return false so the warning will be displayed.
81          return false;
82      }
83  }