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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.action;
35  
36  import info.magnolia.cache.browser.app.CacheKeyItem;
37  import info.magnolia.cache.browser.rest.client.CacheService;
38  import info.magnolia.cache.browser.rest.endpoint.CacheEndpoint;
39  import info.magnolia.event.EventBus;
40  import info.magnolia.i18nsystem.SimpleTranslator;
41  import info.magnolia.ui.api.action.ActionExecutionException;
42  import info.magnolia.ui.api.context.UiContext;
43  import info.magnolia.ui.api.event.AdmincentralEventBus;
44  import info.magnolia.ui.api.event.ContentChangedEvent;
45  
46  import java.util.List;
47  import java.util.Map;
48  
49  import javax.inject.Named;
50  import javax.ws.rs.ClientErrorException;
51  
52  import com.fasterxml.jackson.databind.JsonNode;
53  
54  import com.cedarsoftware.util.io.JsonWriter;
55  import com.vaadin.v7.data.Item;
56  
57  /**
58   * Action that send executes a REST call to the {@link info.magnolia.cache.browser.rest.endpoint.CacheEndpoint#delete(String, String)} to remove selected cache entry.
59   */
60  public class DeleteCacheEntryAction extends AbstractMultiItemAction<DeleteCacheEntryActionDefinition> {
61  
62      private final EventBus admincentralEventBus;
63  
64      public DeleteCacheEntryAction(DeleteCacheEntryActionDefinition definition, Item relatedItem, UiContext uiContext, SimpleTranslator i18n, @Named(AdmincentralEventBus.NAME) EventBus admincentralEventBus) {
65          super(definition, relatedItem, uiContext, i18n);
66          this.admincentralEventBus = admincentralEventBus;
67      }
68  
69      public DeleteCacheEntryAction(DeleteCacheEntryActionDefinition definition, List<Item> relatedItems, UiContext uiContext, SimpleTranslator i18n, @Named(AdmincentralEventBus.NAME) EventBus admincentralEventBus) {
70          super(definition, relatedItems, uiContext, i18n);
71          this.admincentralEventBus = admincentralEventBus;
72      }
73  
74      @Override
75      protected void executeOnItem(Item item) throws Exception {
76          if (item instanceof CacheKeyItem) {
77              CacheKeyItem cacheKeyItem = (CacheKeyItem) item;
78              for (Map.Entry<String, CacheService> entry : cacheKeyItem.getCacheServices().entrySet()) {
79                  CacheService cacheService = entry.getValue();
80                  try {
81                      cacheService.delete(cacheKeyItem.getCacheName(), JsonWriter.objectToJson(cacheKeyItem.getItemId()));
82                      admincentralEventBus.fireEvent(new ContentChangedEvent(cacheKeyItem.getItemId()));
83                  } catch (ClientErrorException e) {
84                      String errorMessage;
85                      if (e.getResponse().getEntity() != null && e.getResponse().getEntity() instanceof JsonNode) {
86                          JsonNode errorNode = (JsonNode) e.getResponse().getEntity();
87                          errorMessage = entry.getKey() + ": " + errorNode.get(CacheEndpoint.PROPERTY_ERROR_MESSAGE).textValue();
88                      } else {
89                          errorMessage = entry.getKey() + ":" + e.getMessage();
90                      }
91                      e.getResponse().close();
92                      throw new ActionExecutionException(errorMessage);
93                  }
94              }
95          }
96      }
97  
98      @Override
99      protected String getSuccessMessageKey() {
100         return "cache-browser-app.actions.delete.success";
101     }
102 
103     @Override
104     protected String getFailureMessageKey() {
105         return "cache-browser-app.actions.delete.error";
106     }
107 
108     @Override
109     protected String itemToString(Item item) {
110         if (item instanceof CacheKeyItem) {
111             return ((CacheKeyItem) item).getItemId().toString();
112         }
113         return null;
114     }
115 }