Can you write a custom layout which wraps another layout and implements that
code on the result? Encapsulation should be easier to support than extension.
-ck
> On Jan 9, 2020, at 8:31 AM, buks...@gmail.com wrote:
>
> Hi Ralph,
> I cant understand where the hook for the PatternConverter would be.
>
> My override is:
> private void tryAppend(final LogEvent event) throws ExecutionException,
> InterruptedException, TimeoutException {
>
> final Layout<? extends Serializable> layout = getLayout();
> String logMessage = (String)layout.toSerializable(event);
> BuildProperties buildProperties =
> (BuildProperties)
> AppContext.getApplicationContext().getBean(BuildProperties.class);
> LogViewerDao logViewerDao = new LogViewerDao(buildProperties, event,
> logMessage);
> manager.send(logViewerDao.toJson().getBytes());
> }
>
> The 2.10 version has:
> private void tryAppend(final LogEvent event) throws ExecutionException,
> InterruptedException, TimeoutException {
> final Layout<? extends Serializable> layout = getLayout();
> byte[] data;
> if (layout instanceof SerializedLayout) {
> final byte[] header = layout.getHeader();
> final byte[] body = layout.toByteArray(event);
> data = new byte[header.length + body.length];
> System.arraycopy(header, 0, data, 0, header.length);
> System.arraycopy(body, 0, data, header.length, body.length);
> } else {
> data = layout.toByteArray(event);
> }
> manager.send(data);
> }
>
> Even here the layout is resolved and directly after that sent to the
> KafkaManager.
> In my version I need some action between where the layout data is embedded as
> an attribute in another object;
>
> Kind Regards,
> Buks
>
> -----Original Message-----
> From: Ralph Goers <ralph.go...@dslextreme.com>
> Sent: Wednesday, 08 January 2020 17:23
> To: Log4J Users List <log4j-user@logging.apache.org>
> Subject: Re: Need to override the Append method of the KafkaAppender
>
> If you need to wrap the message then you should create a pattern converter.
>
> Ralph
>
>> On Jan 8, 2020, at 5:23 AM, Buks van der Lingen <buks...@gmail.com> wrote:
>>
>> Hi,
>> I have a need to wrap the message created by the PatternLayout assigned to
>> my KafkaAppender and pass that to the KafkaManager.
>>
>> The wrapper contains Spring-Boot environment/Build and other properties.
>>
>> The KafkaManager is private in the appender and I can’t get around the
>> implementation at append(); For now I duplicated the KafkaAppender and
>> just added the functionality I need in append();
>>
>> If anyone has a better idea pls advise?
>>
>> Kind Regards,
>> Buks
>>
>> Sent from Mail for Windows 10
>>
>
>
>
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