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Closes https://github.com/osiegmar/logback-gelf/issues/110 #111

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Closes https://github.com/osiegmar/logback-gelf/issues/110 #111

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25 changes: 18 additions & 7 deletions src/main/java/de/siegmar/logbackgelf/GelfEncoder.java
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Original file line number Diff line number Diff line change
Expand Up @@ -414,13 +414,7 @@ public byte[] encode(final ILoggingEvent event) {
collectAdditionalFields(event)
);

final var sb = gelfMessage.toJSON();

if (appendNewline) {
sb.append(System.lineSeparator());
}

return sb.toString().getBytes(StandardCharsets.UTF_8);
return gelfMessageToJson(gelfMessage);
}

protected GelfMessage buildGelfMessage(final long timestamp, final int logLevel, final String shortMessage,
Expand Down Expand Up @@ -472,6 +466,23 @@ private void addFieldMapperData(final ILoggingEvent event, final Map<String, Obj
}
}


/**
* Allow subclasses to customize the message before it is converted to String.
*
* @param gelfMessage the GELF message to serialize.
* @return the serialized GELF message (in JSON format).
*/
protected byte[] gelfMessageToJson(final GelfMessage gelfMessage) {
final var sb = gelfMessage.toJSON();

if (appendNewline) {
sb.append(System.lineSeparator());
}

return sb.toString().getBytes(StandardCharsets.UTF_8);
}

@SuppressWarnings({"PMD.ReturnEmptyArrayRatherThanNull", "PMD.ReturnEmptyCollectionRatherThanNull"})
@Override
public byte[] footerBytes() {
Expand Down