protected void log()

in src/main/java/org/apache/commons/logging/impl/SimpleLog.java [279:334]
41 lines of code
12 McCabe index (conditional complexity)

    protected void log(final int type, final Object message, final Throwable t) {
        // Use a string buffer for better performance
        final StringBuilder buf = new StringBuilder();

        // Append date-time if so configured
        if(showDateTime) {
            final Date now = new Date();
            String dateText;
            synchronized(dateFormatter) {
                dateText = dateFormatter.format(now);
            }
            buf.append(dateText);
            buf.append(" ");
        }

        // Append a readable representation of the log level
        switch(type) {
            case SimpleLog.LOG_LEVEL_TRACE: buf.append("[TRACE] "); break;
            case SimpleLog.LOG_LEVEL_DEBUG: buf.append("[DEBUG] "); break;
            case SimpleLog.LOG_LEVEL_INFO:  buf.append("[INFO] ");  break;
            case SimpleLog.LOG_LEVEL_WARN:  buf.append("[WARN] ");  break;
            case SimpleLog.LOG_LEVEL_ERROR: buf.append("[ERROR] "); break;
            case SimpleLog.LOG_LEVEL_FATAL: buf.append("[FATAL] "); break;
        }

        // Append the name of the log instance if so configured
        if(showShortName) {
            if(shortLogName == null) {
                // Cut all but the last component of the name for both styles
                final String slName = logName.substring(logName.lastIndexOf(".") + 1);
                shortLogName = slName.substring(slName.lastIndexOf("/") + 1);
            }
            buf.append(String.valueOf(shortLogName)).append(" - ");
        } else if(showLogName) {
            buf.append(String.valueOf(logName)).append(" - ");
        }

        // Append the message
        buf.append(String.valueOf(message));

        // Append stack trace if not null
        if(t != null) {
            buf.append(" <");
            buf.append(t.toString());
            buf.append(">");

            final StringWriter sw = new StringWriter(1024);
            final PrintWriter pw = new PrintWriter(sw);
            t.printStackTrace(pw);
            pw.close();
            buf.append(sw.toString());
        }

        // Print to the appropriate destination
        write(buf);
    }