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1   /**
2    * This file Copyright (c) 2015-2018 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.config.source.raw;
35  
36  import static java.util.stream.Collectors.toList;
37  
38  import info.magnolia.config.registry.DefinitionRawView;
39  
40  import java.util.Collection;
41  import java.util.Collections;
42  import java.util.List;
43  import java.util.Map;
44  
45  /**
46   * This is a read-only view on the "raw" data of a configured definition.
47   */
48  public class DefinitionRawViewMapWrapper implements DefinitionRawView {
49  
50      private final Map<Object, Object> map;
51  
52      public DefinitionRawViewMapWrapper(Map map) {
53          this.map = map;
54      }
55  
56      @Override
57      public List<Property> properties() {
58          return map.entrySet().stream()
59                  .map(this::toValue)
60                  .collect(toList());
61      }
62  
63      public Map getRawMap() {
64          return Collections.unmodifiableMap(map);
65      }
66  
67      private Property deriveValue(Object key, Object o) {
68          // deriving values without name must not result in literal "null" keys in raw-views
69          String name = key != null ? String.valueOf(key) : null;
70          if (o instanceof Map) {
71              return Property.subBean(name, new DefinitionRawViewMapWrapper((Map) o));
72          } else if (o instanceof Collection) {
73              Collection<Property> derivedCollection = ((Collection<?>) o).stream()
74                      .map(this::toValue)
75                      .collect(toList());
76              return Property.collection(name, derivedCollection);
77          } else if (o instanceof String || o instanceof Boolean || o instanceof Number) {
78              return Property.simple(name, o);
79          } else if (o == null) {
80              return Property.simple(name, "");
81          } else {
82              throw new IllegalStateException("Unsupported property type in map !? " + o + "(" + o.getClass() + ")");
83          }
84      }
85  
86      private Property toValue(Object input) {
87          if (input instanceof Map.Entry) {
88              Map.Entry e = (Map.Entry) input;
89              return deriveValue(e.getKey(), e.getValue());
90          } else if (input instanceof Map) {
91              // FIXME seems similar to changes in YamlReader - separate ticket.
92              Map map = (Map) input;
93              return deriveValue(map.get("name"), map);
94          }
95          return deriveValue(null, input);
96      }
97  }