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1   /*
2    * ModeShape (http://www.modeshape.org)
3    * See the COPYRIGHT.txt file distributed with this work for information
4    * regarding copyright ownership.  Some portions may be licensed
5    * to Red Hat, Inc. under one or more contributor license agreements.
6    * See the AUTHORS.txt file in the distribution for a full listing of 
7    * individual contributors.
8    *
9    * ModeShape is free software. Unless otherwise indicated, all code in ModeShape
10   * is licensed to you under the terms of the GNU Lesser General Public License as
11   * published by the Free Software Foundation; either version 2.1 of
12   * the License, or (at your option) any later version.
13   * 
14   * ModeShape is distributed in the hope that it will be useful,
15   * but WITHOUT ANY WARRANTY; without even the implied warranty of
16   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17   * Lesser General Public License for more details.
18   *
19   * You should have received a copy of the GNU Lesser General Public
20   * License along with this software; if not, write to the Free
21   * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
22   * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
23   */
24  package org.modeshape.sequencer.text;
25  
26  import net.jcip.annotations.NotThreadSafe;
27  import org.modeshape.graph.JcrLexicon;
28  import org.modeshape.graph.JcrNtLexicon;
29  import org.modeshape.graph.property.PathFactory;
30  import org.modeshape.graph.property.Path.Segment;
31  import org.modeshape.graph.sequencer.SequencerOutput;
32  import org.modeshape.graph.sequencer.StreamSequencerContext;
33  
34  /**
35   * A default implementation of the {@link RowFactory} class. This class records rows in the following subgraph:
36   * <pre>
37   * &lt;graph root&gt;
38   *     + text:row[1] (jcr:primaryType = nt:unstructured)
39   *     |   + text:column[1] (jcr:primaryType = nt:unstructured, jcr:mixinTypes = text:column, text:data = <column1 data>)
40   *     |   + ...
41   *     |   + text:column[n] (jcr:primaryType = nt:unstructured, jcr:mixinTypes = text:column, text:data = <columnN data>)
42   *     + ...
43   *     + text:row[m] (jcr:primaryType = nt:unstructured)
44   *         + text:column[1] (jcr:primaryType = nt:unstructured, jcr:mixinTypes = text:column, text:data = <column1 data>)
45   *         + ...
46   *         + text:column[n] (jcr:primaryType = nt:unstructured, jcr:mixinTypes = text:column, text:data = <columnN data>)
47   * </pre>
48   */
49  @NotThreadSafe
50  public class DefaultRowFactory implements RowFactory {
51      
52      private int rowNumber = 1;
53  
54      public void recordRow( StreamSequencerContext context,
55                          SequencerOutput output,
56                          String[] columns ) {
57  
58          int columnNumber = 1;
59          PathFactory pathFactory = context.getValueFactories().getPathFactory();
60  
61          Segment rowSegment = pathFactory.createSegment(TextSequencerLexicon.ROW, rowNumber);
62          output.setProperty(pathFactory.createRelativePath(rowSegment), JcrLexicon.PRIMARY_TYPE, JcrNtLexicon.UNSTRUCTURED);
63  
64          for (String column : columns) {
65              Segment columnSegment = pathFactory.createSegment(TextSequencerLexicon.COLUMN, columnNumber++);
66  
67              output.setProperty(pathFactory.createRelativePath(rowSegment, columnSegment),
68                                 JcrLexicon.PRIMARY_TYPE,
69                                 JcrNtLexicon.UNSTRUCTURED);
70              output.setProperty(pathFactory.createRelativePath(rowSegment, columnSegment),
71                                 JcrLexicon.MIXIN_TYPES,
72                                 TextSequencerLexicon.COLUMN);
73              output.setProperty(pathFactory.createRelativePath(rowSegment, columnSegment), TextSequencerLexicon.DATA, column);
74          }
75  
76          rowNumber++;
77      }
78  
79  }