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1   package org.apache.maven.model.io;
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.io.File;
23  import java.io.FileInputStream;
24  import java.io.IOException;
25  import java.io.InputStream;
26  import java.io.Reader;
27  import java.util.Map;
28  
29  import org.apache.commons.lang3.Validate;
30  import org.apache.maven.model.InputSource;
31  import org.apache.maven.model.Model;
32  import org.apache.maven.model.io.xpp3.MavenXpp3Reader;
33  import org.apache.maven.model.io.xpp3.MavenXpp3ReaderEx;
34  import org.codehaus.plexus.component.annotations.Component;
35  import org.codehaus.plexus.util.ReaderFactory;
36  import org.codehaus.plexus.util.xml.XmlStreamReader;
37  import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
38  
39  /**
40   * Handles deserialization of a model from some kind of textual format like XML.
41   *
42   * @author Benjamin Bentmann
43   */
44  @Component( role = ModelReader.class )
45  public class DefaultModelReader
46      implements ModelReader
47  {
48  
49      @Override
50      public Model read( File input, Map<String, ?> options )
51          throws IOException
52      {
53          Validate.notNull( input, "input cannot be null" );
54  
55          Model model = read( new FileInputStream( input ), options );
56  
57          model.setPomFile( input );
58  
59          return model;
60      }
61  
62      @Override
63      public Model read( Reader input, Map<String, ?> options )
64          throws IOException
65      {
66          Validate.notNull( input, "input cannot be null" );
67  
68          try ( final Reader in = input )
69          {
70              return read( in, isStrict( options ), getSource( options ) );
71          }
72      }
73  
74      @Override
75      public Model read( InputStream input, Map<String, ?> options )
76          throws IOException
77      {
78          Validate.notNull( input, "input cannot be null" );
79  
80          try ( final XmlStreamReader in = ReaderFactory.newXmlReader( input ) )
81          {
82              return read( in, isStrict( options ), getSource( options ) );
83          }
84      }
85  
86      private boolean isStrict( Map<String, ?> options )
87      {
88          Object value = ( options != null ) ? options.get( IS_STRICT ) : null;
89          return value == null || Boolean.parseBoolean( value.toString() );
90      }
91  
92      private InputSource getSource( Map<String, ?> options )
93      {
94          Object value = ( options != null ) ? options.get( INPUT_SOURCE ) : null;
95          return (InputSource) value;
96      }
97  
98      private Model read( Reader reader, boolean strict, InputSource source )
99          throws IOException
100     {
101         try
102         {
103             if ( source != null )
104             {
105                 return new MavenXpp3ReaderEx().read( reader, strict, source );
106             }
107             else
108             {
109                 return new MavenXpp3Reader().read( reader, strict );
110             }
111         }
112         catch ( XmlPullParserException e )
113         {
114             throw new ModelParseException( e.getMessage(), e.getLineNumber(), e.getColumnNumber(), e );
115         }
116     }
117 
118 }