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1   package org.apache.maven.model.transform;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *   http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import java.util.List;
23  
24  import org.apache.maven.model.transform.pull.NodeBufferingParser;
25  import org.codehaus.plexus.util.xml.pull.XmlPullParser;
26  
27  /**
28   * Remove relativePath element, has no value for consumer pom
29   *
30   * @author Robert Scholte
31   * @author Guillaume Nodet
32   * @since 4.0.0
33   */
34  public class RelativePathXMLFilter extends NodeBufferingParser
35  {
36  
37      public RelativePathXMLFilter( XmlPullParser xmlPullParser )
38      {
39          super( xmlPullParser, "parent" );
40      }
41  
42      protected void process( List<Event> buffer )
43      {
44          boolean skip = false;
45          Event prev = null;
46          for ( Event event : buffer )
47          {
48              if ( event.event == START_TAG && "relativePath".equals( event.name ) )
49              {
50                  skip = true;
51                  if ( prev != null && prev.event == TEXT && prev.text.matches( "\\s+" ) )
52                  {
53                      prev = null;
54                  }
55                  event = null;
56              }
57              else if ( event.event == END_TAG && "relativePath".equals( event.name ) )
58              {
59                  skip = false;
60                  event = null;
61              }
62              else if ( skip )
63              {
64                  event = null;
65              }
66              if ( prev != null )
67              {
68                  pushEvent( prev );
69              }
70              prev = event;
71          }
72          pushEvent( prev );
73      }
74  
75  }