public void log()

in juneau-rest/juneau-rest-server/src/main/java/org/apache/juneau/rest/logger/CallLogger.java [579:690]
86 lines of code
32 McCabe index (conditional complexity)

	public void log(HttpServletRequest req, HttpServletResponse res) {

		CallLoggerRule rule = getRule(req, res);

		if (! isEnabled(rule, req))
			return;

		Level level = firstNonNull(rule.getLevel(), this.level);

		if (level == Level.OFF)
			return;

		Throwable e = castOrNull(req.getAttribute("Exception"), Throwable.class);
		Long execTime = castOrNull(req.getAttribute("ExecTime"), Long.class);

		CallLoggingDetail reqd = firstNonNull(rule.getRequestDetail(), requestDetail);
		CallLoggingDetail resd = firstNonNull(rule.getResponseDetail(), responseDetail);

		String method = req.getMethod();
		int status = res.getStatus();
		String uri = req.getRequestURI();
		byte[] reqContent = getRequestContent(req);
		byte[] resContent = getResponseContent(req, res);

		StringBuilder sb = new StringBuilder();

		if (reqd != STATUS_LINE || resd != STATUS_LINE)
			sb.append("\n=== HTTP Call (incoming) ======================================================\n");

		ThrownStats sti = getThrownStats(e);

		sb.append('[').append(status);

		if (sti != null) {
			int count = sti.getCount();
			sb.append(',').append(StringUtils.toHex8(sti.getHash())).append('.').append(count);
			if (count > 1)
				e = null;
		}

		sb.append("] ");

		sb.append("HTTP ").append(method).append(' ').append(uri);

		if (reqd != STATUS_LINE || resd != STATUS_LINE) {

			if (reqd.isOneOf(HEADER, ENTITY)) {
				String qs = req.getQueryString();
				if (qs != null)
					sb.append('?').append(qs);
			}

			if (reqContent != null && reqd.isOneOf(HEADER ,ENTITY))
				sb.append("\n\tRequest length: ").append(reqContent.length).append(" bytes");

			if (resd.isOneOf(HEADER, ENTITY))
				sb.append("\n\tResponse code: ").append(status);

			if (resContent != null && resd.isOneOf(HEADER, ENTITY))
				sb.append("\n\tResponse length: ").append(resContent.length).append(" bytes");

			if (execTime != null && resd.isOneOf(HEADER, ENTITY))
				sb.append("\n\tExec time: ").append(execTime).append("ms");

			if (reqd.isOneOf(HEADER, ENTITY)) {
				Enumeration<String> hh = req.getHeaderNames();
				if (hh.hasMoreElements()) {
					sb.append("\n---Request Headers---");
					while (hh.hasMoreElements()) {
						String h = hh.nextElement();
						sb.append("\n\t").append(h).append(": ").append(req.getHeader(h));
					}
				}
			}

			if (resd.isOneOf(HEADER, ENTITY)) {
				Collection<String> hh = res.getHeaderNames();
				if (hh.size() > 0) {
					sb.append("\n---Response Headers---");
					for (String h : hh) {
						sb.append("\n\t").append(h).append(": ").append(res.getHeader(h));
					}
				}
			}

			if (reqContent != null && reqContent.length > 0 && reqd == ENTITY) {
				try {
					sb.append("\n---Request Content UTF-8---");
					sb.append("\n").append(new String(reqContent, IOUtils.UTF8));
					sb.append("\n---Request Content Hex---");
					sb.append("\n").append(toSpacedHex(reqContent));
				} catch (Exception e1) {
					sb.append("\n").append(e1.getLocalizedMessage());
				}
			}

			if (resContent != null && resContent.length > 0 && resd == ENTITY) {
				try {
					sb.append("\n---Response Content UTF-8---");
					sb.append("\n").append(new String(resContent, IOUtils.UTF8));
					sb.append("\n---Response Content Hex---");
					sb.append("\n").append(toSpacedHex(resContent));
				} catch (Exception e1) {
					sb.append(e1.getLocalizedMessage());
				}
			}
			sb.append("\n=== END ======================================================================");
		}

		log(level, sb.toString(), e);

	}