package org.appfuse.webapp.filter;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import javax.servlet.FilterChain;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;
/**
* Borrowed from the Display Tag project:
* http://displaytag.sourceforge.net/xref-test/org/displaytag/filter/MockFilterSupport.html
*
* Todo: look into using Spring's MockFilterChain:
* http://www.springframework.org/docs/api/org/springframework/mock/web/MockFilterChain.html
*/
public class MockFilterChain implements FilterChain {
private final Log log = LogFactory.getLog(MockFilterChain.class);
private String forwardURL;
public void doFilter(ServletRequest request, ServletResponse response)
throws IOException, ServletException {
String uri = ((HttpServletRequest) request).getRequestURI();
String requestContext = ((HttpServletRequest) request).getContextPath();
if (StringUtils.isNotEmpty(requestContext) && uri.startsWith(requestContext)) {
uri = uri.substring(requestContext.length());
}
this.forwardURL = uri;
log.debug("Forwarding to: " + uri);
RequestDispatcher dispatcher = request.getRequestDispatcher(uri);
dispatcher.forward(request, response);
}
public String getForwardURL() {
return this.forwardURL;
}
}