nl.surfnet.coin.shared.log.diagnostics
Class DiagnosticsLoggerFilter

java.lang.Object
  nl.surfnet.coin.shared.log.diagnostics.DiagnosticsLoggerFilter

All Implemented Interfaces:

javax.servlet.Filter

public class DiagnosticsLoggerFilter
extends Object
implements javax.servlet.Filter

A Filter that uses MDC to log the aggregated diagnostic information, based on the outcome of the filter chain.

Usage: include this filter in the servlet filter chain. Mind that only filters coming after this one, and the actual servlet being called, will be subject to the processing by this filter.

Author:

Geert van der Ploeg

Nested Class Summary

static class

DiagnosticsLoggerFilter.StatusExposingResponse Wrapper for HttpServletResponse that overrides all methods that write its status code, to expose the status to users.

Field Summary

static String	MEMORY_APPENDER
static String	MEMORY_LOGGER

Constructor Summary

DiagnosticsLoggerFilter()

Method Summary

void	destroy()
void	doFilter(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, javax.servlet.FilterChain chain)
void	init(javax.servlet.FilterConfig filterConfig)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

MEMORY_APPENDER

public static final String MEMORY_APPENDER

See Also:

Constant Field Values

MEMORY_LOGGER

public static final String MEMORY_LOGGER

See Also:

Constant Field Values

Constructor Detail

DiagnosticsLoggerFilter

public DiagnosticsLoggerFilter()

Method Detail

init

public void init(javax.servlet.FilterConfig filterConfig)
          throws javax.servlet.ServletException

Specified by:

init in interface javax.servlet.Filter

Throws:

javax.servlet.ServletException

doFilter

public void doFilter(javax.servlet.ServletRequest request,
                     javax.servlet.ServletResponse response,
                     javax.servlet.FilterChain chain)
              throws IOException,
                     javax.servlet.ServletException

Specified by:

doFilter in interface javax.servlet.Filter

Throws:

IOException

javax.servlet.ServletException

destroy

public void destroy()

Specified by:

destroy in interface javax.servlet.Filter