View Javadoc
1   /**
2    * This file Copyright (c) 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.admincentral;
35  
36  import info.magnolia.cms.filters.ServletDispatchingFilter;
37  import info.magnolia.init.MagnoliaConfigurationProperties;
38  import info.magnolia.objectfactory.ComponentProvider;
39  
40  import java.util.HashMap;
41  import java.util.Map;
42  
43  import javax.inject.Inject;
44  
45  import com.vaadin.server.Constants;
46  
47  /**
48   * This {@link ServletDispatchingFilter} is responsible for Vaadin init-parameters `productionMode` and `resourceCacheTime`.
49   *
50   * <p>If `magnolia.develop` is `true` in {@linkplain info.magnolia.init.MagnoliaConfigurationProperties magnolia.properties},
51   * `productionMode`  will be set to false, and `resourceCacheTime` will be set to 0.
52   *
53   * <p>If any of these parameters is configured under `/server/filters/servlets/&lt;servlet-name&gt;/parameters`,
54   * these configured parameters will be used.
55   */
56  public class VaadinServletDispatchingFilter extends ServletDispatchingFilter {
57      private final MagnoliaConfigurationProperties magnoliaProperties;
58  
59      @Inject
60      public VaadinServletDispatchingFilter(ComponentProvider componentProvider, MagnoliaConfigurationProperties magnoliaProperties) {
61          super(componentProvider);
62          this.magnoliaProperties = magnoliaProperties;
63      }
64  
65      @Override
66      public Map getParameters() {
67          // enrich parameters if magnolia.develop=true
68          Map<String, String> parameters = new HashMap<>();
69          if (magnoliaProperties.getBooleanProperty("magnolia.develop")) {
70              parameters.put(Constants.SERVLET_PARAMETER_PRODUCTION_MODE, "false");
71              parameters.put(Constants.SERVLET_PARAMETER_RESOURCE_CACHE_TIME, "0");
72          }
73          // give precedence to configured parameters
74          parameters.putAll(super.getParameters());
75          return parameters;
76      }
77  }