View Javadoc

1   /**
2    * This file Copyright (c) 2011 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.init;
35  
36  import info.magnolia.init.properties.InitPathsPropertySource;
37  import info.magnolia.init.properties.ModulePropertiesSource;
38  import info.magnolia.init.properties.SystemPropertySource;
39  import info.magnolia.module.ModuleRegistry;
40  
41  import java.io.IOException;
42  import java.util.ArrayList;
43  import java.util.List;
44  
45  import javax.inject.Inject;
46  import javax.inject.Singleton;
47  
48  /**
49   * This implementation of {@link MagnoliaConfigurationProperties} sets up the following list of {@link PropertySource}:
50   * <ul>
51   * <li>{@link InitPathsPropertySource}</li>
52   * <li>/mgnl-beans.properties (list of default core components - TODO : this might move to core's module descriptor</li>
53   * <li>{@link ModulePropertiesSource} (all properties exposed my modules)</li>
54   * <li>Sources provided by {@link MagnoliaPropertiesResolver}</li>
55   * <li>{@link SystemPropertySource}</li>
56   * </ul>
57   *
58   * This class along with {@link DefaultMagnoliaPropertiesResolver} provide a replacement for PropertiesInitializer since 4.5.
59   *
60   * @since 4.5
61   *
62   * @author gjoseph
63   * @version $Revision: $ ($Author: $)
64   */
65  @Singleton
66  public class DefaultMagnoliaConfigurationProperties extends AbstractMagnoliaConfigurationProperties {
67  
68      private final MagnoliaInitPaths initPaths;
69      private final ModuleRegistry moduleRegistry;
70      private final MagnoliaPropertiesResolver resolver;
71  
72      @Inject
73      public DefaultMagnoliaConfigurationProperties(MagnoliaInitPaths initPaths, ModuleRegistry moduleRegistry, MagnoliaPropertiesResolver resolver) {
74          super(null);
75          this.initPaths = initPaths;
76          this.moduleRegistry = moduleRegistry;
77          this.resolver = resolver;
78      }
79  
80      @Override
81      public void init() throws Exception {
82          this.sources = makeSources(initPaths, moduleRegistry, resolver);
83      }
84  
85      protected static List<PropertySource> makeSources(MagnoliaInitPaths initPaths, ModuleRegistry moduleRegistry, MagnoliaPropertiesResolver resolver) throws IOException {
86          final List<PropertySource> allSources = new ArrayList<PropertySource>();
87          // TODO - this is not correct: we only want OVERRIDING properties here, not all.
88          allSources.add(new SystemPropertySource());
89          final List<PropertySource> configuredSources = resolver.getSources();
90          for (PropertySource source : configuredSources) {
91              allSources.add(source);
92          }
93          allSources.add(new ModulePropertiesSource(moduleRegistry));
94          allSources.add(new InitPathsPropertySource(initPaths));
95  
96          // TODO close streams
97          // TODO resolve nested properties - now ?
98          return allSources;
99      }
100 }