org.jboss.netty.handler.codec.string
Class StringEncoder
java.lang.Object
org.jboss.netty.handler.codec.oneone.OneToOneEncoder
org.jboss.netty.handler.codec.string.StringEncoder
- All Implemented Interfaces:
- ChannelDownstreamHandler, ChannelHandler
@ChannelHandler.Sharable
public class StringEncoder
- extends OneToOneEncoder
Encodes the requested String
into a ChannelBuffer
.
A typical setup for a text-based line protocol in a TCP/IP socket would be:
ChannelPipeline
pipeline = ...;
// Decoders
pipeline.addLast("frameDecoder", new DelimiterBasedFrameDecoder
(Delimiters.lineDelimiter()
));
pipeline.addLast("stringDecoder", new StringDecoder
(CharsetUtil.UTF_8));
// Encoder
pipeline.addLast("stringEncoder", new StringEncoder
(CharsetUtil.UTF_8));
and then you can use a String
instead of a ChannelBuffer
as a message:
void messageReceived(ChannelHandlerContext
ctx, MessageEvent
e) {
String msg = (String) e.getMessage();
ch.write("Did you say '" + msg + "'?\n");
}
- Version:
- $Rev:231 $, $Date:2008-06-12 16:44:50 +0900 (목, 12 6월 2008) $
- Author:
- The Netty Project, Trustin Lee
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
StringEncoder
public StringEncoder()
- Creates a new instance with the current system character set.
StringEncoder
public StringEncoder(Charset charset)
- Creates a new instance with the specified character set.
StringEncoder
@Deprecated
public StringEncoder(String charsetName)
- Deprecated. Use
StringEncoder(Charset)
instead.
encode
protected Object encode(ChannelHandlerContext ctx,
Channel channel,
Object msg)
throws Exception
- Description copied from class:
OneToOneEncoder
- Transforms the specified message into another message and return the
transformed message. Note that you can not return
null
, unlike
you can in OneToOneDecoder.decode(ChannelHandlerContext, Channel, Object)
;
you must return something, at least ChannelBuffers.EMPTY_BUFFER
.
- Specified by:
encode
in class OneToOneEncoder
- Throws:
Exception
Copyright © 2008-2011 JBoss, a division of Red Hat, Inc.. All Rights Reserved.