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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.maven.model.transform;
20  
21  import java.io.IOException;
22  import java.util.stream.Stream;
23  
24  import org.apache.maven.model.transform.pull.BufferingParser;
25  import org.codehaus.plexus.util.xml.pull.XmlPullParser;
26  import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
27  
28  /**
29   * Remove the root attribute on the model
30   *
31   * @author Guillaume Nodet
32   * @since 4.0.0
33   */
34  class RootXMLFilter extends BufferingParser {
35      RootXMLFilter(XmlPullParser xmlPullParser) {
36          super(xmlPullParser);
37      }
38  
39      @Override
40      protected boolean accept() throws XmlPullParserException, IOException {
41          if (xmlPullParser.getEventType() == XmlPullParser.START_TAG) {
42              if (xmlPullParser.getDepth() == 1 && "project".equals(xmlPullParser.getName())) {
43                  Event event = bufferEvent();
44                  event.attributes = Stream.of(event.attributes)
45                          .filter(a -> !"root".equals(a.name))
46                          .toArray(Attribute[]::new);
47                  pushEvent(event);
48                  return false;
49              }
50          }
51          return true;
52      }
53  }