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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.cms.core;
35  
36  import info.magnolia.cms.security.AccessDeniedException;
37  
38  import java.io.InputStream;
39  import java.util.Calendar;
40  
41  import javax.jcr.ItemNotFoundException;
42  import javax.jcr.Property;
43  import javax.jcr.PropertyType;
44  import javax.jcr.RepositoryException;
45  import javax.jcr.Value;
46  
47  
48  /**
49   * Represents an non-mutable empty node data. This is returned by
50   * {@link Content#getNodeData(String)} in case the node data does not exist. This is the case
51   * because jcr doesn't support empty properties.
52   *
53   * All reading methods will return a default value which might be null in some cases. All writing
54   * methods will throw an {@link ItemNotFoundException}.
55   */
56  public class NonExistingNodeData extends AbstractNodeData {
57  
58      public NonExistingNodeData(Content parent, String name) {
59          super(parent, name);
60      }
61  
62      @Override
63      protected Content getContentFromJCRReference() throws RepositoryException {
64          return null;
65      }
66  
67      @Override
68      public void delete() throws RepositoryException {
69          throw new ItemNotFoundException("Can't delete a non-existing node data");
70      }
71  
72      @Override
73      public boolean getBoolean() {
74          return false;
75      }
76  
77      @Override
78      public long getContentLength() {
79          return 0;
80      }
81  
82      @Override
83      public Calendar getDate() {
84          return null;
85      }
86  
87      @Override
88      public double getDouble() {
89          return 0;
90      }
91  
92      @Override
93      public Property getJCRProperty() {
94          return null;
95      }
96  
97      @Override
98      public long getLong() {
99          return 0;
100     }
101 
102     @Override
103     public InputStream getStream() {
104         return null;
105     }
106 
107     @Override
108     public String getString() {
109         return "";
110     }
111 
112     @Override
113     public String getAttribute(String name) {
114         return "";
115     }
116 
117     @Override
118     public int getType() {
119         return PropertyType.UNDEFINED;
120     }
121 
122     @Override
123     public Value getValue() {
124         return null;
125     }
126 
127     @Override
128     public Value[] getValues() {
129         return null;
130     }
131 
132     @Override
133     public boolean isExist() {
134         return false;
135     }
136 
137     @Override
138     public void refresh(boolean keepChanges) throws RepositoryException {
139     }
140 
141     @Override
142     public void save() throws RepositoryException {
143         throw new ItemNotFoundException("Can't save a non-existing node data");
144     }
145 
146     @Override
147     public void setValue(String value) throws RepositoryException, AccessDeniedException {
148         throw new ItemNotFoundException("Can't set a non-existing node data");
149     }
150 
151     @Override
152     public void setValue(int value) throws RepositoryException, AccessDeniedException {
153         throw new ItemNotFoundException("Can't set a non-existing node data");
154     }
155 
156     @Override
157     public void setValue(long value) throws RepositoryException, AccessDeniedException {
158         throw new ItemNotFoundException("Can't set a non-existing node data");
159     }
160 
161     @Override
162     public void setValue(InputStream value) throws RepositoryException, AccessDeniedException {
163         throw new ItemNotFoundException("Can't set a non-existing node data");
164     }
165 
166     @Override
167     public void setValue(double value) throws RepositoryException, AccessDeniedException {
168         throw new ItemNotFoundException("Can't set a non-existing node data");
169     }
170 
171     @Override
172     public void setValue(boolean value) throws RepositoryException, AccessDeniedException {
173         throw new ItemNotFoundException("Can't set a non-existing node data");
174     }
175 
176     @Override
177     public void setValue(Calendar value) throws RepositoryException, AccessDeniedException {
178         throw new ItemNotFoundException("Can't set a non-existing node data");
179     }
180 
181     @Override
182     public void setValue(Content value) throws RepositoryException, AccessDeniedException {
183         throw new ItemNotFoundException("Can't set a non-existing node data");
184     }
185 
186     @Override
187     public void setValue(Value value) throws RepositoryException, AccessDeniedException {
188         throw new ItemNotFoundException("Can't set a non-existing node data");
189     }
190 
191     @Override
192     public void setValue(Value[] value) throws RepositoryException, AccessDeniedException {
193         throw new ItemNotFoundException("Can't set a non-existing node data");
194     }
195 
196 }