private void writeHeaders(
StompHeaderAccessor headers, Message<byte[]> message, DataOutputStream output)
throws IOException {
Map<String, List<String>> stompHeaders = headers.toStompHeaderMap();
if (SimpMessageType.HEARTBEAT.equals(headers.getMessageType())) {
logger.trace("Encoded heartbeat");
} else if (logger.isDebugEnabled()) {
logger.debug("Encoded STOMP command=" + headers.getCommand() + " headers=" + stompHeaders);
}
for (Entry<String, List<String>> entry : stompHeaders.entrySet()) {
byte[] key = getUtf8BytesEscapingIfNecessary(entry.getKey(), headers);
for (String value : entry.getValue()) {
output.write(key);
output.write(COLON);
output.write(getUtf8BytesEscapingIfNecessary(value, headers));
output.write(LF);
}
}
if ((headers.getCommand() == StompCommand.SEND)
|| (headers.getCommand() == StompCommand.MESSAGE)
|| (headers.getCommand() == StompCommand.ERROR)) {
output.write("content-length:".getBytes(UTF8_CHARSET));
output.write(Integer.toString(message.getPayload().length).getBytes(UTF8_CHARSET));
output.write(LF);
}
}
private boolean isHeartbeat(StompHeaderAccessor headers) {
return headers.getMessageType() == SimpMessageType.HEARTBEAT;
}
