void append()

in src/main/java/org/apache/log4j/net/SyslogAppender.java [296:353]
48 lines of code
16 McCabe index (conditional complexity)

  void append(LoggingEvent event) {

    if(!isAsSevereAsThreshold(event.getLevel()))
      return;

    // We must not attempt to append if sqw is null.
    if(sqw == null) {
      errorHandler.error("No syslog host is set for SyslogAppedender named \""+
			this.name+"\".");
      return;
    }

    if (!layoutHeaderChecked) {
        if (layout != null && layout.getHeader() != null) {
            sendLayoutMessage(layout.getHeader());
        }
        layoutHeaderChecked = true;
    }

    String hdr = getPacketHeader(event.timeStamp);
    String packet;
    if (layout == null) {
        packet = String.valueOf(event.getMessage());
    } else {
        packet = layout.format(event);
    }
    if(facilityPrinting || hdr.length() > 0) {
        StringBuffer buf = new StringBuffer(hdr);
        if(facilityPrinting) {
            buf.append(facilityStr);
        }
        buf.append(packet);
        packet = buf.toString();
    }

    sqw.setLevel(event.getLevel().getSyslogEquivalent());
    //
    //   if message has a remote likelihood of exceeding 1024 bytes
    //      when encoded, consider splitting message into multiple packets
    if (packet.length() > 256) {
        splitPacket(hdr, packet);
    } else {
        sqw.write(packet);
    }

    if (layout == null || layout.ignoresThrowable()) {
      String[] s = event.getThrowableStrRep();
      if (s != null) {
        for(int i = 0; i < s.length; i++) {
            if (s[i].startsWith("\t")) {
               sqw.write(hdr+TAB+s[i].substring(1));
            } else {
               sqw.write(hdr+s[i]);
            }
        }
      }
    }
  }