2 Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
4 This file is part of GNU Classpath.
6 GNU Classpath is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Classpath is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Classpath; see the file COPYING. If not, write to the
18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 Linking this library statically or dynamically with other modules is
22 making a combined work based on this library. Thus, the terms and
23 conditions of the GNU General Public License cover the whole
26 As a special exception, the copyright holders of this library give you
27 permission to link this library with independent modules to produce an
28 executable, regardless of the license terms of these independent
29 modules, and to copy and distribute the resulting executable under
30 terms of your choice, provided that you also meet, for each linked
31 independent module, the terms and conditions of the license of that
32 module. An independent module is a module which is not derived from
33 or based on this library. If you modify this library, you may extend
34 this exception to your version of the library, but you are not
35 obligated to do so. If you do not wish to do so, delete this
36 exception statement from your version. */
39 package java.nio.channels;
41 import gnu.java.nio.ChannelReader;
42 import gnu.java.nio.ChannelWriter;
43 import gnu.java.nio.InputStreamChannel;
44 import gnu.java.nio.OutputStreamChannel;
46 import java.io.InputStream;
47 import java.io.OutputStream;
48 import java.io.Reader;
49 import java.io.Writer;
50 import java.nio.charset.Charset;
51 import java.nio.charset.CharsetDecoder;
52 import java.nio.charset.CharsetEncoder;
53 import java.nio.charset.UnsupportedCharsetException;
59 public final class Channels
62 * This class isn't intended to be instantiated.
70 * Constructs a stream that reads bytes from the given channel.
72 public static InputStream newInputStream(ReadableByteChannel ch)
74 return VMChannels.newInputStream(ch);
78 * Constructs a stream that writes bytes to the given channel.
80 public static OutputStream newOutputStream(WritableByteChannel ch)
82 return VMChannels.newOutputStream(ch);
86 * Constructs a channel that reads bytes from the given stream.
88 public static ReadableByteChannel newChannel(InputStream in)
90 return new InputStreamChannel(in);
94 * Constructs a channel that writes bytes to the given stream.
96 public static WritableByteChannel newChannel(OutputStream out)
98 return new OutputStreamChannel(out);
102 * Constructs a reader that decodes bytes from the given channel using the
105 public static Reader newReader(ReadableByteChannel ch, CharsetDecoder dec,
108 return new ChannelReader(ch, dec, minBufferCap);
112 * Constructs a reader that decodes bytes from the given channel according to
115 * @exception UnsupportedCharsetException If no support for the named charset
116 * is available in this instance of the Java virtual machine.
118 public static Reader newReader(ReadableByteChannel ch, String csName)
120 return newReader(ch, Charset.forName(csName).newDecoder(), -1);
124 * Constructs a writer that encodes characters using the given encoder and
125 * writes the resulting bytes to the given channel.
127 public static Writer newWriter(WritableByteChannel ch, CharsetEncoder enc,
130 return new ChannelWriter(ch, enc, minBufferCap);
134 * Constructs a writer that encodes characters according to the named charset
135 * and writes the resulting bytes to the given channel.
137 * @exception UnsupportedCharsetException If no support for the named charset
138 * is available in this instance of the Java virtual machine.
140 public static Writer newWriter(WritableByteChannel ch, String csName)
142 return newWriter(ch, Charset.forName(csName).newEncoder(), -1);