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1   /**
2    * This file Copyright (c) 2010-2018 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.templating.elements;
35  
36  import info.magnolia.cms.beans.config.ServerConfiguration;
37  import info.magnolia.cms.i18n.Messages;
38  import info.magnolia.cms.i18n.MessagesUtil;
39  import info.magnolia.rendering.context.RenderingContext;
40  import info.magnolia.rendering.engine.RenderException;
41  import info.magnolia.rendering.template.RenderableDefinition;
42  
43  import java.io.IOException;
44  
45  import javax.jcr.Node;
46  
47  
48  /**
49   * Common super class for templating elements, provides utility methods and defaults.
50   */
51  public abstract class AbstractTemplatingElement implements TemplatingElement {
52  
53      private static final String DEFAULT_I18N_BASENAME = "info.magnolia.templating.messages";
54  
55      private final ServerConfiguration server;
56      private final RenderingContext renderingContext;
57  
58      protected AbstractTemplatingElement(final ServerConfiguration server, final RenderingContext renderingContext) {
59          this.server = server;
60          this.renderingContext = renderingContext;
61      }
62  
63      @Override
64      public void begin(Appendable out) throws IOException, RenderException {
65      }
66  
67      /**
68       * Override this method if you need to "do something" once the component is rendered, i.e cleanup the context.
69       */
70      @Override
71      public void end(Appendable out) throws IOException, RenderException {
72      }
73  
74      /**
75       * Returns the "current content" from the aggregation state. Override this method if your component needs a
76       * different target node.
77       */
78      protected Node currentContent() {
79          return renderingContext.getCurrentContent();
80      }
81  
82      /**
83       * @deprecated since 5.4.4. Use new i18n mechanism instead.
84       */
85      @Deprecated
86      protected String getDefinitionMessage(RenderableDefinition definition, String key) {
87          Messages messages = MessagesUtil.chain(definition.getI18nBasename(), MessagesUtil.chainWithDefault(DEFAULT_I18N_BASENAME));
88          return messages.getWithDefault(key, key);
89      }
90  
91      /**
92       * @deprecated since 5.4.4. Use new i18n mechanism instead.
93       */
94      @Deprecated
95      protected String getInterfaceMessage(String key) {
96          return MessagesUtil.chainWithDefault(DEFAULT_I18N_BASENAME).getWithDefault(key, key);
97      }
98  
99      protected boolean isAdmin() {
100         return server.isAdmin();
101     }
102 
103     protected ServerConfiguration getServer() {
104         return server;
105     }
106 
107     protected RenderingContext getRenderingContext() {
108         return renderingContext;
109     }
110 }