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1   package org.codehaus.plexus.util;
2   
3   /*
4    * Copyright The Codehaus Foundation.
5    *
6    * Licensed under the Apache License, Version 2.0 (the "License");
7    * you may not use this file except in compliance with the License.
8    * You may obtain a copy of the License at
9    *
10   *     http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  
19  import java.io.File;
20  import java.io.IOException;
21  import java.io.OutputStream;
22  import java.io.OutputStreamWriter;
23  import java.io.UnsupportedEncodingException;
24  import java.io.Writer;
25  import java.nio.charset.Charset;
26  import java.nio.file.Files;
27  
28  import org.codehaus.plexus.util.xml.XmlStreamWriter;
29  
30  /**
31   * Utility to create Writers, with explicit encoding choice: platform default, XML, or specified.
32   *
33   * @deprecated This class has been deprecated. When writing XML, users can create the {@link XmlStreamWriter} instance
34   *             directly. For other usages, using {@link Files} helper methods is recommended.
35   *
36   * @author <a href="mailto:hboutemy@codehaus.org">Herve Boutemy</a>
37   * @see Charset
38   * @see <a href="http://java.sun.com/j2se/1.4.2/docs/guide/intl/encoding.doc.html">Supported encodings</a>
39   *
40   * @since 1.4.4
41   */
42  @Deprecated
43  public class WriterFactory {
44      /**
45       * ISO Latin Alphabet #1, also known as ISO-LATIN-1. Every implementation of the Java platform is required to
46       * support this character encoding.
47       *
48       * @see Charset
49       */
50      public static final String ISO_8859_1 = "ISO-8859-1";
51  
52      /**
53       * Seven-bit ASCII, also known as ISO646-US, also known as the Basic Latin block of the Unicode character set. Every
54       * implementation of the Java platform is required to support this character encoding.
55       *
56       * @see Charset
57       */
58      public static final String US_ASCII = "US-ASCII";
59  
60      /**
61       * Sixteen-bit Unicode Transformation Format, byte order specified by a mandatory initial byte-order mark (either
62       * order accepted on input, big-endian used on output). Every implementation of the Java platform is required to
63       * support this character encoding.
64       *
65       * @see Charset
66       */
67      public static final String UTF_16 = "UTF-16";
68  
69      /**
70       * Sixteen-bit Unicode Transformation Format, big-endian byte order. Every implementation of the Java platform is
71       * required to support this character encoding.
72       *
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. Every implementation of the Java platform is
79       * required to support this character encoding.
80       *
81       * @see Charset
82       */
83      public static final String UTF_16LE = "UTF-16LE";
84  
85      /**
86       * Eight-bit Unicode Transformation Format. Every implementation of the Java platform is required to support this
87       * character encoding.
88       *
89       * @see Charset
90       */
91      public static final String UTF_8 = "UTF-8";
92  
93      /**
94       * The <code>file.encoding</code> System Property.
95       */
96      public static final String FILE_ENCODING = System.getProperty("file.encoding");
97  
98      /**
99       * Create a new Writer with XML encoding detection rules.
100      *
101      * @param out not null output stream.
102      * @return an XML writer instance for the output stream.
103      * @throws IOException if any.
104      * @see XmlStreamWriter
105      */
106     public static XmlStreamWriter newXmlWriter(OutputStream out) throws IOException {
107         return new XmlStreamWriter(out);
108     }
109 
110     /**
111      * Create a new Writer with XML encoding detection rules.
112      *
113      * @param file not null file.
114      * @return an XML writer instance for the output file.
115      * @throws IOException if any.
116      * @see XmlStreamWriter
117      */
118     public static XmlStreamWriter newXmlWriter(File file) throws IOException {
119         return new XmlStreamWriter(file);
120     }
121 
122     /**
123      * Create a new Writer with default platform encoding.
124      *
125      * @param out not null output stream.
126      * @return a writer instance for the output stream using the default platform charset.
127      * @see Charset#defaultCharset()
128      */
129     public static Writer newPlatformWriter(OutputStream out) {
130         return new OutputStreamWriter(out);
131     }
132 
133     /**
134      * Create a new Writer with default platform encoding.
135      *
136      * @param file not null file.
137      * @return a writer instance for the output file using the default platform charset.
138      * @throws IOException if any.
139      * @see Charset#defaultCharset()
140      */
141     public static Writer newPlatformWriter(File file) throws IOException {
142         return Files.newBufferedWriter(file.toPath());
143     }
144 
145     /**
146      * Create a new Writer with specified encoding.
147      *
148      * @param out not null output stream.
149      * @param encoding not null supported encoding.
150      * @return a writer instance for the output stream using the given encoding.
151      * @throws UnsupportedEncodingException if any.
152      * @see <a href="http://java.sun.com/j2se/1.4.2/docs/guide/intl/encoding.doc.html">Supported encodings</a>
153      */
154     public static Writer newWriter(OutputStream out, String encoding) throws UnsupportedEncodingException {
155         return new OutputStreamWriter(out, encoding);
156     }
157 
158     /**
159      * Create a new Writer with specified encoding.
160      *
161      * @param file not null file.
162      * @param encoding not null supported encoding.
163      * @return a writer instance for the output file using the given encoding.
164      * @throws IOException if any.
165      * @see <a href="http://java.sun.com/j2se/1.4.2/docs/guide/intl/encoding.doc.html">Supported encodings</a>
166      */
167     public static Writer newWriter(File file, String encoding) throws IOException {
168         return newWriter(Files.newOutputStream(file.toPath()), encoding);
169     }
170 }