HttpServletRequest from Seam

[supernovasoftware.com]

Is it possible to directly access the HttpServletRequest in a bean.

For example I am now using a custom filter to add the follwing items to the request so that I can access them from Seam Components.

This currently works fine, but I am wondering if I can do away with this filter.

package pipetracker.web.servlet;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public class ExposeHttpServletRequestFilter implements Filter
{

 private static final Log logger = LogFactory.getLog(ExposeHttpServletRequestFilter.class);

 @SuppressWarnings("unused")
 private ServletContext servletContext;

 public void destroy()
 {
 }

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

 HttpServletRequest httpServletRequest = (HttpServletRequest) request;

 addRemoteUser(httpServletRequest);
 addBasePath(httpServletRequest);

 try
 {
 chain.doFilter(request, response);
 } catch (Exception e)
 {
 logger.error("ended request due to exception", e);
 throw new ServletException(e);
 } finally
 {
 logger.debug("ended request");
 }
 }

 public void init(FilterConfig config) throws ServletException
 {
 servletContext = config.getServletContext();
 }

 private void addRemoteUser(HttpServletRequest httpServletRequest)
 {
 logger.info(httpServletRequest.getRemoteUser());
 httpServletRequest.setAttribute("remoteUsr", httpServletRequest.getRemoteUser());
 }

 private void addBasePath(HttpServletRequest httpServletRequest)
 {
 StringBuffer basePath = new StringBuffer();
 basePath.append(httpServletRequest.getScheme() + "://").append(httpServletRequest.getServerName() + ":" + httpServletRequest.getServerPort()).append(httpServletRequest.getContextPath() + "/");
 httpServletRequest.setAttribute("basePath", basePath.toString());
 }

}

[eekboom]

FacesContext facesContext = FacesContext.getCurrentInstance();
ExternalContext externalContext = facesContext.getExternalContext();
HttpServletRequest request = (HttpServletRequest) externalContext.getRequest();

[supernovasoftware.com]

I did away with the filter. I am posting an example here in case anyone finds it useful. I mainly use this to set the href value is the base tag in xhtml.

People have helped me on this so I am going to start posting general examples here.

@Stateless
@Name("exposeHttpServletRequest")
@Scope(ScopeType.EVENT)
@Interceptors(SeamInterceptor.class)
public class ExposeHttpServletRequestBean implements Serializable, ExposeHttpServletRequest
{
 private static final long serialVersionUID = 2675604092563757800L;

 @SuppressWarnings("unused")
 @Out(scope = ScopeType.EVENT, required = false)
 private String userJAAS;

 @SuppressWarnings("unused")
 @Out(scope = ScopeType.EVENT, required = false)
 private String basePath;

 @In
 private FacesContext facesContext;

 private HttpServletRequest request;

 @Create
 public void setup() {
 request = (HttpServletRequest) facesContext.getExternalContext().getRequest();
 }

 @Factory("userJAAS")
 public void loadUserJAAS()
 {
 userJAAS = request.getRemoteUser();
 }

 @Factory("basePath")
 public void loadBasePath()
 {
 basePath = request.getScheme() + "://" +
 request.getServerName() + ":" +
 request.getServerPort() + request.getContextPath() + "/";
 }

@Local
public interface ExposeHttpServletRequest {
 public void loadUserJAAS();
 public void loadBasePath();
 public void setup();
}

[js8523]

Hi

Probably the best place to put examples is the wiki.

Thanks,

James