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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libjava/] [classpath/] [java/] [nio/] [channels/] [Channels.java] - Blame information for rev 775

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1 771 jeremybenn
/* Channels.java --
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   Copyright (C) 2002, 2003, 2004, 2005  Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING.  If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library.  Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module.  An independent module is a module which is not derived from
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or based on this library.  If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so.  If you do not wish to do so, delete this
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exception statement from your version. */
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package java.nio.channels;
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import gnu.java.nio.ChannelReader;
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import gnu.java.nio.ChannelWriter;
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import gnu.java.nio.InputStreamChannel;
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import gnu.java.nio.OutputStreamChannel;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.io.Reader;
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import java.io.Writer;
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import java.nio.charset.Charset;
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import java.nio.charset.CharsetDecoder;
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import java.nio.charset.CharsetEncoder;
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import java.nio.charset.UnsupportedCharsetException;
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/**
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 * @since 1.4
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 */
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public final class Channels
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{
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  /**
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   * This class isn't intended to be instantiated.
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   */
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  private Channels()
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  {
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    // Do nothing here.
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  }
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  /**
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   * Constructs a stream that reads bytes from the given channel.
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   */
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  public static InputStream newInputStream(ReadableByteChannel ch)
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  {
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    return VMChannels.newInputStream(ch);
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  }
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  /**
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   * Constructs a stream that writes bytes to the given channel.
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   */
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  public static OutputStream newOutputStream(WritableByteChannel ch)
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  {
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    return VMChannels.newOutputStream(ch);
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  }
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  /**
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   * Constructs a channel that reads bytes from the given stream.
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   */
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  public static ReadableByteChannel newChannel(InputStream in)
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  {
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    return new InputStreamChannel(in);
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  }
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  /**
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   * Constructs a channel that writes bytes to the given stream.
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   */
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  public static WritableByteChannel newChannel(OutputStream out)
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  {
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    return new OutputStreamChannel(out);
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  }
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  /**
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   * Constructs a reader that decodes bytes from the given channel using the
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   * given decoder.
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   */
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  public static Reader newReader(ReadableByteChannel ch, CharsetDecoder dec,
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                                 int minBufferCap)
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  {
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    return new ChannelReader(ch, dec, minBufferCap);
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  }
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  /**
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   * Constructs a reader that decodes bytes from the given channel according to
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   * the named charset.
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   *
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   * @exception UnsupportedCharsetException If no support for the named charset
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   * is available in this instance of the Java virtual machine.
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   */
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  public static Reader newReader(ReadableByteChannel ch, String csName)
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  {
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    return newReader(ch, Charset.forName(csName).newDecoder(), -1);
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  }
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  /**
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   * Constructs a writer that encodes characters using the given encoder and
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   * writes the resulting bytes to the given channel.
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   */
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  public static Writer newWriter(WritableByteChannel ch, CharsetEncoder enc,
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                                 int minBufferCap)
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  {
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    return new ChannelWriter(ch, enc, minBufferCap);
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  }
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  /**
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   * Constructs a writer that encodes characters according to the named charset
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   * and writes the resulting bytes to the given channel.
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   *
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   * @exception UnsupportedCharsetException If no support for the named charset
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   * is available in this instance of the Java virtual machine.
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   */
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  public static Writer newWriter(WritableByteChannel ch, String csName)
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  {
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    return newWriter(ch, Charset.forName(csName).newEncoder(), -1);
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  }
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}

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