Example usage for io.netty.buffer ByteBufUtil prettyHexDump

Introduction

In this page you can find the example usage for io.netty.buffer ByteBufUtil prettyHexDump.

Prototype

public static String prettyHexDump(ByteBuf buffer) 

Source Link

Document

Returns a multi-line hexadecimal dump of the specified ByteBuf that is easy to read by humans.

Usage

From source file:pl.tcs.btppllib.OcitResponseTelegramHandler.java

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) {
    ByteBuf buf = (ByteBuf) msg; // (1)
    log.debug("****** Message received ******");
    log.debug(ByteBufUtil.prettyHexDump(buf));
    log.debug("******************************");

    final int bufLen = buf.readableBytes();

    if (bufLen < 18) {
        throw new CriticalException(String.format("Incomplete telegram received [size]=%d", bufLen));
    }/*from www .j a v a 2 s .  c om*/

    try {
        // member = 6, otype = 8, method = 10
        int memberPos = 6, otypePos = 8, methodPos = 10;

        final int member = buf.getUnsignedShort(memberPos);
        final int otype = buf.getUnsignedShort(otypePos);
        final int method = buf.getUnsignedShort(methodPos);

        Class handlerClazz = HandlersMapping.getResponseHandler(member, otype, method);
        if (handlerClazz != null) {
            log.debug(String.format("Found response handler for member=%d otype=%d method=%d with name=%s",
                    member, otype, method, handlerClazz.getSimpleName()));

            OcitResponseTelegram resp = (OcitResponseTelegram) handlerClazz.newInstance();
            resp.fromByteBuf(buf); // initialize fields

            List<ResponseTelegramAction> allActions = resp.getActions();
            for (ResponseTelegramAction action : allActions) {
                executor.submit(action);
            }
        }
    } catch (InstantiationException | IllegalAccessException e) {
        throw new CriticalException(e);
    } finally {
        buf.release();
    }
}

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