Constructor Detail

• RequestDumperFilter

  public RequestDumperFilter()

Method Detail

• doFilter

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

  Log the interesting request parameters, invoke the next Filter in the sequence, and log the interesting response parameters.

  Specified by:

  doFilter in interface Filter

  Parameters:

  request - The servlet request to be processed

  response - The servlet response to be created

  chain - The filter chain being processed

  Throws:

  IOException - if an input/output error occurs

  ServletException - if a servlet error occurs

• init

  public void init(FilterConfig filterConfig)
            throws ServletException

  Description copied from interface: Filter
  Called by the web container to indicate to a filter that it is being placed into service. The servlet container calls the init method exactly once after instantiating the filter. The init method must complete successfully before the filter is asked to do any filtering work.

  The web container cannot place the filter into service if the init method either:

  • Throws a ServletException
  • Does not return within a time period defined by the web container

  Specified by:

  init in interface Filter

  Parameters:

  filterConfig - The configuration information associated with the filter instance being initialised

  Throws:

  ServletException - if the initialisation fails

• destroy

  public void destroy()

  Description copied from interface: Filter
  Called by the web container to indicate to a filter that it is being taken out of service. This method is only called once all threads within the filter's doFilter method have exited or after a timeout period has passed. After the web container calls this method, it will not call the doFilter method again on this instance of the filter.
  
  This method gives the filter an opportunity to clean up any resources that are being held (for example, memory, file handles, threads) and make sure that any persistent state is synchronized with the filter's current state in memory.

  Specified by:

  destroy in interface Filter