Modify message body in HornetQ transformer?

[mattrk]

Hello,

Modifying message properties in a transformer is fairly straight forward, and an example transformer is supplied.

However, I would like to modify a message body but am unsure how to get/set text from/for a org.hornetq.core.server.ServerMessage ...

Based on my current searches/reading of documentation the most promising approach seems to be SimpleString messageContents = message.getBodyBuffer().readNullableSimpleString(); (and the reverse).

However, when I do messageContents.toString(), I just get back

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Does anyone have any suggestions as to how I can proceed or know of useful documentation for this issue?

I'm hoping it's something relatively simple. However, I'm pretty puzzled at present.

Thanks & regards,

Matthew

[mattrk]

OK. I have sort of worked it out, in case it is useful for others.

I used Qpid Proton to set the message body, so the body is a string in an AmqpValue object -- it is that object that I got back when I called readNullableSimpleString();

The following code retrieves the bytes and presents them in a readable format:

byte[] amqpValue = new byte[message.getBodyBuffer().readableBytes()];

message.getBodyBuffer().getBytes(0, amqpValue);

String byteString = null;

try

{

    byteString = new String(amqpValue, "UTF-8");

}

catch (UnsupportedEncodingException e)

{

    logger.severe(e.getMessage());

}

logger.info("amqpValue: " + byteString);

So, now it is a simple case of getting/converting the right bytes.

The issue of setting the message body back after modification remains...

Thanks & regards,

Matthew