001package org.apache.maven.artifact.repository.metadata.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
022import java.io.File;
023import java.io.IOException;
024import java.io.InputStream;
025import java.io.Reader;
026import java.util.Map;
027
028import org.apache.commons.lang3.Validate;
029import org.apache.maven.artifact.repository.metadata.Metadata;
030import org.apache.maven.artifact.repository.metadata.io.xpp3.MetadataXpp3Reader;
031import org.codehaus.plexus.component.annotations.Component;
032import org.codehaus.plexus.util.IOUtil;
033import org.codehaus.plexus.util.ReaderFactory;
034import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
035
036/**
037 * Handles deserialization of metadata from some kind of textual format like XML.
038 *
039 * @author Benjamin Bentmann
040 */
041@Component( role = MetadataReader.class )
042public class DefaultMetadataReader
043    implements MetadataReader
044{
045
046    public Metadata read( File input, Map<String, ?> options )
047        throws IOException
048    {
049        Validate.notNull( input, "input cannot be null" );
050
051        Metadata metadata = read( ReaderFactory.newXmlReader( input ), options );
052
053        return metadata;
054    }
055
056    public Metadata read( Reader input, Map<String, ?> options )
057        throws IOException
058    {
059        Validate.notNull( input, "input cannot be null" );
060
061        try
062        {
063            MetadataXpp3Reader r = new MetadataXpp3Reader();
064            return r.read( input, isStrict( options ) );
065        }
066        catch ( XmlPullParserException e )
067        {
068            throw new MetadataParseException( e.getMessage(), e.getLineNumber(), e.getColumnNumber(), e );
069        }
070        finally
071        {
072            IOUtil.close( input );
073        }
074    }
075
076    public Metadata read( InputStream input, Map<String, ?> options )
077        throws IOException
078    {
079        Validate.notNull( input, "input cannot be null" );
080
081        try
082        {
083            MetadataXpp3Reader r = new MetadataXpp3Reader();
084            return r.read( input, isStrict( options ) );
085        }
086        catch ( XmlPullParserException e )
087        {
088            throw new MetadataParseException( e.getMessage(), e.getLineNumber(), e.getColumnNumber(), e );
089        }
090        finally
091        {
092            IOUtil.close( input );
093        }
094    }
095
096    private boolean isStrict( Map<String, ?> options )
097    {
098        Object value = ( options != null ) ? options.get( IS_STRICT ) : null;
099        return value == null || Boolean.parseBoolean( value.toString() );
100    }
101
102}