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Correlation ids

Pragya Keshap answered on February 11, 2023 Popularity 8/10 Helpfulness 2/10

answer Correlation ids

Correlation ids

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A Correlation ID, also known as a Transit ID, is a unique identifier value that is attached to requests and messages that allow reference to a particular transaction or event chain. The Correlation Pattern, which depends on the use of Correlation ID is a well documented Enterprise Integration Pattern.

public class CorrelationHeaderFilter implements Filter {

    //...

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain)
            throws IOException, ServletException {

        final HttpServletRequest httpServletRequest = (HttpServletRequest) servletRequest;
        String currentCorrId = httpServletRequest.getHeader(RequestCorrelation.CORRELATION_ID_HEADER);

        if (!currentRequestIsAsyncDispatcher(httpServletRequest)) {
            if (currentCorrId == null) {
                currentCorrId = UUID.randomUUID().toString();
                LOGGER.info("No correlationId found in Header. Generated : " + currentCorrId);
            } else {
                LOGGER.info("Found correlationId in Header : " + currentCorrId);
            }

            RequestCorrelation.setId(currentCorrId);
        }

        filterChain.doFilter(httpServletRequest, servletResponse);
    }


    //...

    private boolean currentRequestIsAsyncDispatcher(HttpServletRequest httpServletRequest) {
        return httpServletRequest.getDispatcherType().equals(DispatcherType.ASYNC);
    }

https://www.rapid7.com/blog/post/2016/12/23/the-value-of-correlation-ids/#:~:text=A%20Correlation%20ID%2C%20also%20known,well%20documented%20Enterprise%20Integration%20Pattern.

Popularity 8/10 Helpfulness 2/10 Language java

Source: Grepper

Tags: correlation ids java

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Contributed on Feb 11 2023

Pragya Keshap

0 Answers Avg Quality 2/10

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