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US990352: Add log to caf-correlation for testing #12

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US990352: Add log to caf-correlation for testing #12

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8 changes: 8 additions & 0 deletions ...on-jservlet/src/main/java/com/github/cafapi/correlation/jservlet/CorrelationIdFilter.java
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Original file line number Diff line number Diff line change
Expand Up @@ -27,10 +27,15 @@
import java.io.IOException;
import java.util.Optional;
import java.util.UUID;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.MDC;

public class CorrelationIdFilter implements Filter
{
private static final Logger logger = LoggerFactory.getLogger(CorrelationIdFilter.class);

@Override
public void init(final FilterConfig filterConfig)
{
Expand All @@ -48,6 +53,9 @@ public void doFilter(
final String correlationId = Optional.ofNullable(req.getHeader(CorrelationIdConfigurationConstants.HEADER_NAME))
.filter(s -> !s.isEmpty())
.orElseGet(() -> UUID.randomUUID().toString());

logger.error("990352:doFilter(): correlationID: {}", correlationId);

MDC.put(CorrelationIdConfigurationConstants.MDC_KEY, correlationId);
resp.addHeader(CorrelationIdConfigurationConstants.HEADER_NAME, correlationId);
chain.doFilter(request, response);
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