package org.apache.maven.shared.utils.xml;

 /*

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements.  See the NOTICE file

  * distributed with this work for additional information

  * regarding copyright ownership.  The ASF licenses this file

  * to you under the Apache License, Version 2.0 (the

  * "License"); you may not use this file except in compliance

  * with the License.  You may obtain a copy of the License at

  *

  *  http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing,

  * software distributed under the License is distributed on an

  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

  * KIND, either express or implied.  See the License for the

  * specific language governing permissions and limitations

  * under the License.

  */

 import java.io.File;

 import java.io.FileInputStream;

 import java.io.IOException;

 import java.io.InputStream;

 import java.io.Reader;

 import java.net.URL;

 import java.net.URLConnection;

 import java.util.regex.Pattern;

 public class XmlStreamReader

         extends Reader

 {

     private final org.apache.commons.io.input.XmlStreamReader reader;

     private static String _staticDefaultEncoding = null;

     public static void setDefaultEncoding( String encoding )

     {

         _staticDefaultEncoding = encoding;

     }

     public static String getDefaultEncoding()

     {

         return _staticDefaultEncoding;

     }

     public XmlStreamReader( File file )

             throws IOException

     {

         this( new FileInputStream( file ) );

     }

     public XmlStreamReader( InputStream is )

             throws IOException

     {

         this( is, true );

     }

     public XmlStreamReader( InputStream is, boolean lenient )

             throws IOException, XmlStreamReaderException

     {

         reader = new org.apache.commons.io.input.XmlStreamReader( is, lenient, _staticDefaultEncoding );

     }

     public XmlStreamReader( URL url )

             throws IOException

     {

         this( url.openConnection() );

     }

     public XmlStreamReader( URLConnection conn )

             throws IOException

     {

         reader = new org.apache.commons.io.input.XmlStreamReader( conn, _staticDefaultEncoding );

     }

     public XmlStreamReader( InputStream is, String httpContentType )

             throws IOException

     {

         this( is, httpContentType, true );

     }

     public XmlStreamReader( InputStream is, String httpContentType, boolean lenient, String defaultEncoding )

             throws IOException, XmlStreamReaderException

     {

         reader = new org.apache.commons.io.input.XmlStreamReader( is, httpContentType, lenient,

                 ( defaultEncoding == null )

                         ? _staticDefaultEncoding

                         : defaultEncoding );

     }

     public XmlStreamReader( InputStream is, String httpContentType, boolean lenient )

             throws IOException, XmlStreamReaderException

     {

         this( is, httpContentType, lenient, null );

     }

     public String getEncoding()

     {

         return reader.getEncoding();

     }

     public int read( char[] buf, int offset, int len )

             throws IOException

     {

         return reader.read( buf, offset, len );

     }

     public void close()

             throws IOException

     {

         reader.close();

     }

     static final Pattern ENCODING_PATTERN =

             Pattern.compile( "<\\?xml.*encoding[\\s]*=[\\s]*((?:\".[^\"]*\")|(?:'.[^']*'))", Pattern.MULTILINE );

 }