View Javadoc

1   package org.codehaus.plexus.util;
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.FileNotFoundException;
24  import java.io.FileOutputStream;
25  import java.io.FileWriter;
26  import java.io.IOException;
27  import java.io.OutputStream;
28  import java.io.OutputStreamWriter;
29  import java.io.UnsupportedEncodingException;
30  import java.io.Writer;
31  import java.nio.charset.Charset;
32  
33  import org.codehaus.plexus.util.xml.XmlStreamWriter;
34  
35  /**
36   * Utility to create Writers, with explicit encoding choice: platform default,
37   * XML, or specified.
38   * 
39   * @author <a href="mailto:hboutemy@codehaus.org">Herve Boutemy</a>
40   * @see Charset
41   * @see <a href="http://java.sun.com/j2se/1.4.2/docs/guide/intl/encoding.doc.html">Supported encodings</a>
42   * @version $Id: WriterFactory.java 630430 2008-02-23 13:16:25Z olamy $
43   * @since 1.4.4
44   * @deprecated TO BE REMOVED from here when plexus-utils is upgraded to 1.4.5+ (and prerequisite upgraded to Maven 2.0.6)
45   */
46  public class WriterFactory
47  {
48      /**
49       * ISO Latin Alphabet #1, also known as ISO-LATIN-1.
50       * Every implementation of the Java platform is required to support this character encoding.
51       * @see Charset
52       */
53      public static final String ISO_8859_1 = "ISO-8859-1";
54  
55      /**
56       * Seven-bit ASCII, also known as ISO646-US, also known as the Basic Latin block of the Unicode character set.
57       * Every implementation of the Java platform is required to support this character encoding.
58       * @see Charset
59       */
60      public static final String US_ASCII = "US-ASCII";
61  
62      /**
63       * Sixteen-bit Unicode Transformation Format, byte order specified by a mandatory initial byte-order mark (either
64       * order accepted on input, big-endian used on output).
65       * Every implementation of the Java platform is required to support this character encoding.
66       * @see Charset
67       */
68      public static final String UTF_16 = "UTF-16";
69  
70      /**
71       * Sixteen-bit Unicode Transformation Format, big-endian byte order.
72       * Every implementation of the Java platform is required to support this character encoding.
73       * @see Charset
74       */
75      public static final String UTF_16BE = "UTF-16BE";
76  
77      /**
78       * Sixteen-bit Unicode Transformation Format, little-endian byte order.
79       * Every implementation of the Java platform is required to support this character encoding.
80       * @see Charset
81       */
82      public static final String UTF_16LE = "UTF-16LE";
83  
84      /**
85       * Eight-bit Unicode Transformation Format.
86       * Every implementation of the Java platform is required to support this character encoding.
87       * @see Charset
88       */
89      public static final String UTF_8 = "UTF-8";
90  
91      /**
92       * The <code>file.encoding</code> System Property.
93       */
94      public static final String FILE_ENCODING = System.getProperty( "file.encoding" );
95      
96      /**
97       * Create a new Writer with XML encoding detection rules.
98       * @see XmlStreamWriter
99       */
100     public static XmlStreamWriter newXmlWriter( OutputStream out )
101     throws IOException
102     {
103         return new XmlStreamWriter( out );
104     }
105 
106     /**
107      * Create a new Writer with XML encoding detection rules.
108      * @see XmlStreamWriter
109      */
110     public static XmlStreamWriter newXmlWriter( File file )
111     throws IOException
112     {
113         return new XmlStreamWriter( file );
114     }
115 
116     /**
117      * Create a new Writer with default plaform encoding.
118      */
119     public static Writer newPlatformWriter( OutputStream out )
120     {
121         return new OutputStreamWriter( out );
122     }
123 
124     /**
125      * Create a new Writer with default plaform encoding.
126      */
127     public static Writer newPlatformWriter( File file )
128     throws IOException
129     {
130         return new FileWriter( file );
131     }
132 
133     /**
134      * Create a new Writer with specified encoding.
135      * @see <a href="http://java.sun.com/j2se/1.4.2/docs/guide/intl/encoding.doc.html">Supported encodings</a>
136      */
137     public static Writer newWriter( OutputStream out, String encoding )
138     throws UnsupportedEncodingException
139     {
140         return new OutputStreamWriter( out, encoding );
141     }
142 
143     /**
144      * Create a new Writer with specified encoding.
145      * @see <a href="http://java.sun.com/j2se/1.4.2/docs/guide/intl/encoding.doc.html">Supported encodings</a>
146      */
147     public static Writer newWriter( File file, String encoding )
148     throws UnsupportedEncodingException, FileNotFoundException
149     {
150         return newWriter( new FileOutputStream(file), encoding );
151     }
152 }