diff -r 000000000000 -r 6ae5e4f8329b org/sonews/daemon/LineEncoder.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/org/sonews/daemon/LineEncoder.java Mon Aug 24 13:00:05 2009 +0200 @@ -0,0 +1,80 @@ +/* + * SONEWS News Server + * see AUTHORS for the list of contributors + * + * This program 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 3 of the License, or + * (at your option) any later version. + * + * This program 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 this program. If not, see . + */ + +package org.sonews.daemon; + +import java.nio.ByteBuffer; +import java.nio.CharBuffer; +import java.nio.channels.ClosedChannelException; +import java.nio.charset.Charset; +import java.nio.charset.CharsetEncoder; +import java.nio.charset.CoderResult; + +/** + * Encodes a line to buffers using the correct charset. + * @author Christian Lins + * @since sonews/0.5.0 + */ +class LineEncoder +{ + + private CharBuffer characters; + private Charset charset; + + /** + * Constructs new LineEncoder. + * @param characters + * @param charset + */ + public LineEncoder(CharBuffer characters, Charset charset) + { + this.characters = characters; + this.charset = charset; + } + + /** + * Encodes the characters of this instance to the given ChannelLineBuffers + * using the Charset of this instance. + * @param buffer + * @throws java.nio.channels.ClosedChannelException + */ + public void encode(ChannelLineBuffers buffer) + throws ClosedChannelException + { + CharsetEncoder encoder = charset.newEncoder(); + while (characters.hasRemaining()) + { + ByteBuffer buf = ChannelLineBuffers.newLineBuffer(); + assert buf.position() == 0; + assert buf.capacity() >= 512; + + CoderResult res = encoder.encode(characters, buf, true); + + // Set limit to current position and current position to 0; + // means make ready for read from buffer + buf.flip(); + buffer.addOutputBuffer(buf); + + if (res.isUnderflow()) // All input processed + { + break; + } + } + } + +}