package com.manning.nettyinaction.chapter10;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.MessageToMessageEncoder;
import java.util.List;
/**
* @author <a href="mailto:norman.maurer@googlemail.com">Norman Maurer</a>
*/
public class AbsIntegerEncoder extends MessageToMessageEncoder<ByteBuf> {
@Override
protected void encode(ChannelHandlerContext channelHandlerContext, ByteBuf in, List<Object> out) throws Exception {
while (in.readableBytes() >= 4) {
int value = Math.abs(in.readInt());
out.add(value);
}
}
}