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1   /**
2    * This file Copyright (c) 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.resources.app;
35  
36  import info.magnolia.resourceloader.ResourceOrigin;
37  import info.magnolia.resourceloader.layered.LayeredResource;
38  import info.magnolia.resources.app.workbench.ResourcesContainer;
39  import info.magnolia.ui.vaadin.integration.contentconnector.ContentConnector;
40  
41  import javax.inject.Inject;
42  
43  import com.vaadin.data.Item;
44  import com.vaadin.data.Property;
45  
46  /**
47   * {@link ContentConnector} implementation for the new resources app.
48   * <p>
49   * In particular, it delegates creation of {@link Item Items} to the {@link ResourcesContainer},
50   * and uses {@link LayeredResource} {@link ResourcesContainer#RESOURCE_PATH} as a string representation.
51   */
52  public class ResourcesContentConnector implements ContentConnector {
53  
54      private final ResourceOrigin<LayeredResource> origin;
55  
56      @Inject
57      @SuppressWarnings("unchecked")
58      public ResourcesContentConnector(ResourceOrigin resourceOrigin) {
59          this.origin = (ResourceOrigin<LayeredResource>) resourceOrigin;
60      }
61  
62      @Override
63      public String getItemUrlFragment(Object itemId) {
64          return origin.getByPath((String) itemId).getPath();
65      }
66  
67      @Override
68      public String getItemIdByUrlFragment(String urlFragment) {
69          return urlFragment;
70      }
71  
72      @Override
73      public String getDefaultItemId() {
74          // BrowserLocation sets path to "/" if empty, which is in fact an existing Resource (origin root), so we stay in sync
75          return "/";
76      }
77  
78      @Override
79      public Item getItem(Object itemId) {
80          return ResourcesContainer.newItem(origin.getByPath((String) itemId));
81      }
82  
83      @Override
84      public String getItemId(Item item) {
85          Property<?> resourcePathProperty = item.getItemProperty(ResourcesContainer.RESOURCE_PATH);
86          if (resourcePathProperty != null) {
87              return (String) resourcePathProperty.getValue();
88          }
89          return null;
90      }
91  
92      @Override
93      public boolean canHandleItem(Object itemId) {
94          return itemId instanceof String && origin.hasPath((String) itemId);
95      }
96  
97      public ResourceOrigin getOrigin() {
98          return origin;
99      }
100 }