| /* Channels.java -- |
| Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package java.nio.channels; |
| |
| import gnu.java.nio.ChannelReader; |
| import gnu.java.nio.ChannelWriter; |
| import gnu.java.nio.InputStreamChannel; |
| import gnu.java.nio.OutputStreamChannel; |
| |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.io.Reader; |
| import java.io.Writer; |
| import java.nio.charset.Charset; |
| import java.nio.charset.CharsetDecoder; |
| import java.nio.charset.CharsetEncoder; |
| import java.nio.charset.UnsupportedCharsetException; |
| |
| |
| /** |
| * @since 1.4 |
| */ |
| public final class Channels |
| { |
| /** |
| * This class isn't intended to be instantiated. |
| */ |
| private Channels() |
| { |
| // Do nothing here. |
| } |
| |
| /** |
| * Constructs a stream that reads bytes from the given channel. |
| */ |
| public static InputStream newInputStream(ReadableByteChannel ch) |
| { |
| return VMChannels.newInputStream(ch); |
| } |
| |
| /** |
| * Constructs a stream that writes bytes to the given channel. |
| */ |
| public static OutputStream newOutputStream(WritableByteChannel ch) |
| { |
| return VMChannels.newOutputStream(ch); |
| } |
| |
| /** |
| * Constructs a channel that reads bytes from the given stream. |
| */ |
| public static ReadableByteChannel newChannel(InputStream in) |
| { |
| return new InputStreamChannel(in); |
| } |
| |
| /** |
| * Constructs a channel that writes bytes to the given stream. |
| */ |
| public static WritableByteChannel newChannel(OutputStream out) |
| { |
| return new OutputStreamChannel(out); |
| } |
| |
| /** |
| * Constructs a reader that decodes bytes from the given channel using the |
| * given decoder. |
| */ |
| public static Reader newReader(ReadableByteChannel ch, CharsetDecoder dec, |
| int minBufferCap) |
| { |
| return new ChannelReader(ch, dec, minBufferCap); |
| } |
| |
| /** |
| * Constructs a reader that decodes bytes from the given channel according to |
| * the named charset. |
| * |
| * @exception UnsupportedCharsetException If no support for the named charset |
| * is available in this instance of the Java virtual machine. |
| */ |
| public static Reader newReader(ReadableByteChannel ch, String csName) |
| { |
| return newReader(ch, Charset.forName(csName).newDecoder(), -1); |
| } |
| |
| /** |
| * Constructs a writer that encodes characters using the given encoder and |
| * writes the resulting bytes to the given channel. |
| */ |
| public static Writer newWriter(WritableByteChannel ch, CharsetEncoder enc, |
| int minBufferCap) |
| { |
| return new ChannelWriter(ch, enc, minBufferCap); |
| } |
| |
| /** |
| * Constructs a writer that encodes characters according to the named charset |
| * and writes the resulting bytes to the given channel. |
| * |
| * @exception UnsupportedCharsetException If no support for the named charset |
| * is available in this instance of the Java virtual machine. |
| */ |
| public static Writer newWriter(WritableByteChannel ch, String csName) |
| { |
| return newWriter(ch, Charset.forName(csName).newEncoder(), -1); |
| } |
| } |