CoreDefaultExceptionMapper.java

package fr.openwide.core.wicket.more;

import org.apache.wicket.DefaultExceptionMapper;
import org.apache.wicket.authorization.AuthorizationException;
import org.apache.wicket.request.IExceptionMapper;
import org.apache.wicket.request.IRequestHandler;
import org.apache.wicket.request.http.handler.ErrorCodeRequestHandler;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.security.access.AccessDeniedException;

public class CoreDefaultExceptionMapper implements IExceptionMapper {
	
	private static final Logger LOGGER = LoggerFactory.getLogger(CoreDefaultExceptionMapper.class);
	
	private static final IExceptionMapper DELEGATE = new DefaultExceptionMapper();

	@Override
	public IRequestHandler map(Exception e) {
		if (e instanceof AuthorizationException) {
			/*
			 * Make Spring Security work for us: it will save the original request for later redirect and redirect
			 * to the login page
			 */
			throw new AccessDeniedException("Access denied by Wicket's security layer", e);
		}
		try {
			return DELEGATE.map(e);
		} catch (RuntimeException e2) {
			if (LOGGER.isDebugEnabled()) {
				LOGGER.error("An error occurred while handling a previous error: " + e2.getMessage(), e2);
			}

			// We were already handling an exception! give up
			LOGGER.error("unexpected exception when handling another exception: " + e.getMessage(), e);
			return new ErrorCodeRequestHandler(500);
		}
	}

}