//$Id: HttpError.java 5350 2007-06-20 17:53:19Z gavin $
package org.jboss.seam.faces;
import static org.jboss.seam.annotations.Install.BUILT_IN;
import java.io.IOException;
import javax.faces.context.FacesContext;
import javax.servlet.http.HttpServletResponse;
import org.jboss.seam.Component;
import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.Install;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Scope;
import org.jboss.seam.annotations.intercept.BypassInterceptors;
import org.jboss.seam.contexts.Contexts;
/**
* Convenient HTTP errors
*
* @author Gavin King
*/
@Scope(ScopeType.APPLICATION)
@BypassInterceptors
@Name("org.jboss.seam.faces.httpError")
@Install(precedence=BUILT_IN, classDependencies="javax.faces.context.FacesContext")
public class HttpError
{
/**
* Send a HTTP error as the response
*/
public void send(int code)
{
try
{
getResponse().sendError(code);
}
catch (IOException ioe)
{
throw new IllegalStateException(ioe);
}
FacesContext.getCurrentInstance().responseComplete();
}
/**
* Send a HTTP error as the response
*/
public void send(int code, String message)
{
try
{
getResponse().sendError(code, message);
}
catch (IOException ioe)
{
throw new IllegalStateException(ioe);
}
FacesContext.getCurrentInstance().responseComplete();
}
private static HttpServletResponse getResponse()
{
return (HttpServletResponse) FacesContext.getCurrentInstance().getExternalContext().getResponse();
}
public static HttpError instance()
{
if ( !Contexts.isApplicationContextActive() )
{
throw new IllegalStateException("No active application scope");
}
return (HttpError) Component.getInstance(HttpError.class, ScopeType.APPLICATION);
}
}