SoapActionPerformanceFilter.java

/*
 *
 * Copyright (c) void.fm
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package etm.contrib.integration.web;

import etm.core.monitor.EtmPoint;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;

/**
 * A Servlet Filter that spans performance monitoring around WebService document/literal
 * requests that contain a SoapAction HTTP header. Uses {@link etm.core.configuration.EtmManager#getEtmMonitor()}
 * to retrieve the currently active EtmMonitor. Therefore it is recommended to use
 * this filter in conjunction with {@link EtmMonitorContextListener}.
 * <p/>
 * Delegates monitoring to {@link HttpRequestPerformanceFilter} for missing or empty soap actions.
 *
 * @author void.fm
 * @version $Revision$
 */
public class SoapActionPerformanceFilter extends HttpRequestPerformanceFilter {

  public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
    String soapAction = ((HttpServletRequest) servletRequest).getHeader("SoapAction");
    if (soapAction == null || soapAction.length() == 0) {
      super.doFilter(servletRequest, servletResponse, filterChain);
    } else {
      EtmPoint point = etmMonitor.createPoint("SoapAction " + soapAction);
      try {
        filterChain.doFilter(servletRequest, servletResponse);
      } finally {
        point.collect();
      }
    }
  }

  public void destroy() {
  }
}