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/* WMS Filter
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* Author: MP
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* Status: Just a test
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* MPTODO: make this a true servlet filter to append sld to any incoming wms request
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*/
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package edu.ucsb.nceas.metacat.spatial;
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import javax.servlet.*;
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import javax.servlet.http.*;
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import java.io.IOException;
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import java.util.Enumeration;
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public final class WmsFilter implements Filter {
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private FilterConfig filterConfig = null;
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public void init(FilterConfig filterConfig)
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throws ServletException {
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this.filterConfig = filterConfig;
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}
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public void destroy() {
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this.filterConfig = null;
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}
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public void doFilter(ServletRequest request,
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ServletResponse response, FilterChain chain)
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throws IOException, ServletException {
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if (filterConfig == null)
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return;
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System.out.println("\n===============");
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System.out.println(" The filter Works !!!");
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long before = System.currentTimeMillis();
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// Attributes != Paramters but there is no setParameter
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//request.setAttribute("SLD", "http://pmark.msi.ucsb.edu:8180/knb/style/skins/ebm/spatial/data_bounds_style.sld");
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Enumeration e = request.getParameterNames();
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while( e.hasMoreElements() ) {
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String name = (String) e.nextElement();
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System.out.println( name + " = " + request.getParameter(name));
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}
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chain.doFilter(request, response);
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long after = System.currentTimeMillis();
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System.out.println(" *** Time " + (after - before) + "ms");
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System.out.println("===============\n");
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// A simple redirect won't work since it will filter itself endlessly
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//HttpServletResponse hres = (HttpServletResponse) response;
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//HttpServletRequest hreq = (HttpServletRequest) response;
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//hres.sendRedirect( hreq.getRequestURL().toString() );
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}
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}
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