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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/java/nio/channels/Channels.java | |
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Diffstat (limited to 'libjava/classpath/java/nio/channels/Channels.java')
-rw-r--r-- | libjava/classpath/java/nio/channels/Channels.java | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/libjava/classpath/java/nio/channels/Channels.java b/libjava/classpath/java/nio/channels/Channels.java new file mode 100644 index 000000000..382a3d705 --- /dev/null +++ b/libjava/classpath/java/nio/channels/Channels.java @@ -0,0 +1,144 @@ +/* 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); + } +} |