
@ChannelPipelineCoverage(value="all") public class ProtobufDecoder extends OneToOneDecoder
ChannelBuffer into a
Google Protocol Buffers
Message. Please note that this decoder must be used with a proper
FrameDecoder such as LengthFieldBasedFrameDecoder if you are
using a stream-based transport such as TCP/IP. A typical setup for TCP/IP
would be:
and then you can use aChannelPipelinepipeline = ...; // Decoders pipeline.addLast("frameDecoder", newLengthFieldBasedFrameDecoder(1048576, 0, 4, 0, 4)); pipeline.addLast("protobufDecoder", newProtobufDecoder(MyMessage.getDefaultInstance())); // Encoder pipeline.addLast("frameEncoder", newLengthFieldPrepender(4)); pipeline.addLast("protobufEncoder", newProtobufEncoder());
MyMessage instead of a ChannelBuffer
as a message:
void messageReceived(ChannelHandlerContext ctx, MessageEvent e) {
MyMessage req = (MyMessage) e.getMessage();
MyMessage res = MyMessage.newBuilder().setText(
"Did you say '" + req.getText() + "'?").build();
ch.write(res);
}
| Constructor and Description |
|---|
ProtobufDecoder(com.google.protobuf.Message prototype)
Creates a new instance.
|
ProtobufDecoder(com.google.protobuf.Message prototype,
com.google.protobuf.ExtensionRegistry extensionRegistry) |
| Modifier and Type | Method and Description |
|---|---|
protected Object |
decode(ChannelHandlerContext ctx,
Channel channel,
Object msg) |
handleUpstreampublic ProtobufDecoder(com.google.protobuf.Message prototype)
public ProtobufDecoder(com.google.protobuf.Message prototype,
com.google.protobuf.ExtensionRegistry extensionRegistry)
protected Object decode(ChannelHandlerContext ctx, Channel channel, Object msg) throws Exception
decode in class OneToOneDecoderExceptionCopyright © 2008-2013 JBoss, by Red Hat. All Rights Reserved.