001 package org.apache.maven.model.io;
002
003 /*
004 * Licensed to the Apache Software Foundation (ASF) under one
005 * or more contributor license agreements. See the NOTICE file
006 * distributed with this work for additional information
007 * regarding copyright ownership. The ASF licenses this file
008 * to you under the Apache License, Version 2.0 (the
009 * "License"); you may not use this file except in compliance
010 * with the License. You may obtain a copy of the License at
011 *
012 * http://www.apache.org/licenses/LICENSE-2.0
013 *
014 * Unless required by applicable law or agreed to in writing,
015 * software distributed under the License is distributed on an
016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017 * KIND, either express or implied. See the License for the
018 * specific language governing permissions and limitations
019 * under the License.
020 */
021
022 import java.io.File;
023 import java.io.FileInputStream;
024 import java.io.IOException;
025 import java.io.InputStream;
026 import java.io.Reader;
027 import java.util.Map;
028
029 import org.apache.maven.model.InputSource;
030 import org.apache.maven.model.Model;
031 import org.apache.maven.model.io.xpp3.MavenXpp3Reader;
032 import org.apache.maven.model.io.xpp3.MavenXpp3ReaderEx;
033 import org.codehaus.plexus.component.annotations.Component;
034 import org.codehaus.plexus.util.IOUtil;
035 import org.codehaus.plexus.util.ReaderFactory;
036 import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
037
038 /**
039 * Handles deserialization of a model from some kind of textual format like XML.
040 *
041 * @author Benjamin Bentmann
042 */
043 @Component( role = ModelReader.class )
044 public class DefaultModelReader
045 implements ModelReader
046 {
047
048 public Model read( File input, Map<String, ?> options )
049 throws IOException
050 {
051 if ( input == null )
052 {
053 throw new IllegalArgumentException( "input file missing" );
054 }
055
056 Model model = read( new FileInputStream( input ), options );
057
058 model.setPomFile( input );
059
060 return model;
061 }
062
063 public Model read( Reader input, Map<String, ?> options )
064 throws IOException
065 {
066 if ( input == null )
067 {
068 throw new IllegalArgumentException( "input reader missing" );
069 }
070
071 try
072 {
073 return read( input, isStrict( options ), getSource( options ) );
074 }
075 finally
076 {
077 IOUtil.close( input );
078 }
079 }
080
081 public Model read( InputStream input, Map<String, ?> options )
082 throws IOException
083 {
084 if ( input == null )
085 {
086 throw new IllegalArgumentException( "input stream missing" );
087 }
088
089 try
090 {
091 return read( ReaderFactory.newXmlReader( input ), isStrict( options ), getSource( options ) );
092 }
093 finally
094 {
095 IOUtil.close( input );
096 }
097 }
098
099 private boolean isStrict( Map<String, ?> options )
100 {
101 Object value = ( options != null ) ? options.get( IS_STRICT ) : null;
102 return value == null || Boolean.parseBoolean( value.toString() );
103 }
104
105 private InputSource getSource( Map<String, ?> options )
106 {
107 Object value = ( options != null ) ? options.get( INPUT_SOURCE ) : null;
108 return (InputSource) value;
109 }
110
111 private Model read( Reader reader, boolean strict, InputSource source )
112 throws IOException
113 {
114 try
115 {
116 if ( source != null )
117 {
118 return new MavenXpp3ReaderEx().read( reader, strict, source );
119 }
120 else
121 {
122 return new MavenXpp3Reader().read( reader, strict );
123 }
124 }
125 catch ( XmlPullParserException e )
126 {
127 throw new ModelParseException( e.getMessage(), e.getLineNumber(), e.getColumnNumber(), e );
128 }
129 }
130
131 }