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1   /**
2    * This file Copyright (c) 2019 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.pages.app.action.browser;
35  
36  import info.magnolia.objectfactory.ComponentProvider;
37  import info.magnolia.ui.api.action.ActionExecutionException;
38  import info.magnolia.ui.availability.AvailabilityChecker;
39  import info.magnolia.ui.contentapp.action.ChainedAction;
40  import info.magnolia.ui.contentapp.action.ChainedActionDefinition;
41  import info.magnolia.ui.ValueContext;
42  
43  import java.util.Optional;
44  import java.util.Set;
45  
46  import javax.inject.Inject;
47  import javax.jcr.Node;
48  
49  /**
50   * A chained action for creating page.
51   */
52  public class CreatePageChainedAction extends ChainedAction<Node> {
53  
54      @Inject
55      public CreatePageChainedAction(ChainedActionDefinition actionDefinition, ComponentProvider componentProvider, ValueContext<Node> valueContext, AvailabilityChecker<Node> availabilityChecker) {
56          super(actionDefinition, componentProvider, valueContext, availabilityChecker);
57      }
58  
59      @Override
60      public void execute() throws ActionExecutionException {
61          Set<String> actions = getDefinition().getActions().keySet();
62          for (String action : actions) {
63              Optional<Node> oldPageMaybe = getValueContext().getSingle();
64              super.execute(action);
65              Node newPage = getValueContext().getSingleOrThrow();
66  
67              // If the value context did not change, no new page was created
68              // by the CreatePageAction (first action in the chain)
69              if (oldPageMaybe.map(oldPage -> oldPage.equals(newPage)).orElse(false)) {
70                  break;
71              }
72          }
73      }
74  }