View Javadoc
1   /**
2    * This file Copyright (c) 2015-2017 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.cache.browser.app;
35  
36  import info.magnolia.module.cache.cachekey.CacheKey;
37  import info.magnolia.objectfactory.ComponentProvider;
38  import info.magnolia.ui.vaadin.integration.contentconnector.AbstractContentConnector;
39  import info.magnolia.ui.vaadin.integration.contentconnector.ContentConnectorDefinition;
40  
41  import javax.inject.Inject;
42  
43  import com.vaadin.v7.data.Item;
44  
45  /**
46   * Content connector that allows to browse cache items.
47   */
48  public class CacheBrowserContentConnector extends AbstractContentConnector {
49  
50      public static final CacheKey DEFAULT_ITEM_ID = new CacheKey() {};
51  
52      private CacheBrowserContainer container;
53  
54      @Inject
55      public CacheBrowserContentConnector(ContentConnectorDefinition contentConnectorDefinition, ComponentProvider componentProvider) {
56          super(contentConnectorDefinition, componentProvider);
57      }
58  
59      @Override
60      public String getItemUrlFragment(Object itemId) {
61          return String.valueOf(itemId.hashCode());
62      }
63  
64      @Override
65      public Object getItemIdByUrlFragment(String urlFragment) {
66          if (urlFragment.equals("/")) {
67              return getDefaultItemId();
68          }
69          for (CacheKey cacheK : container.getItemIds()) {
70              if (cacheK.hashCode() == Integer.valueOf(urlFragment)) {
71                  return cacheK;
72              }
73          }
74          return null;
75      }
76  
77      @Override
78      public Object getDefaultItemId() {
79          return DEFAULT_ITEM_ID;
80      }
81  
82      @Override
83      public Item getItem(Object itemId) {
84          return container.getItem(itemId);
85      }
86  
87      @Override
88      public Object getItemId(Item item) {
89          if (!canHandleItem(item)) {
90              return null;
91          }
92          return ((CacheKeyItem) item).getItemId();
93      }
94  
95      @Override
96      public boolean canHandleItem(Object itemId) {
97          return itemId instanceof CacheKey;
98      }
99  
100     public void setContainer(CacheBrowserContainer container) {
101         this.container = container;
102     }
103 
104 }