MdoParamMenuIdInterceptor.java

package fr.mch.mdo.restaurant.web.struts;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

import org.apache.struts2.StrutsStatics;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.Interceptor;

import fr.mch.mdo.restaurant.Constants;
import fr.mch.mdo.restaurant.dto.beans.MdoUserContext;

/**
 * @author Mathieu MA
 * 
 *         To change this generated comment edit the template variable
 *         "typecomment": Window>Preferences>Java>Templates. To enable and
 *         disable the creation of type comments go to
 *         Window>Preferences>Java>Code Generation.
 */
public class MdoParamMenuIdInterceptor implements Interceptor
{
	/**
	 * Default Serial Version UID.
	 */
	private static final long serialVersionUID = 1L;

	private String selectedMenuItemIdKey;

	public void init() {
	}

	public void destroy() {
	}

	/*
	 * Cette méthode est utilisée pour vérifier le choix du language de
	 * l'utilisateur. Dans le cas où l'utilisateur n'a pas choisi une langue,
	 * c'est le language du navigateur qui est pris en compte.
	 */
	public String intercept(ActionInvocation invocation) throws Exception {
		// Get the action context from the invocation so we can access the
		// HttpServletRequest and HttpSession objects.
		final ActionContext context = invocation.getInvocationContext();
		HttpServletRequest request = (HttpServletRequest) context.get(StrutsStatics.HTTP_REQUEST);

		String selectedMenuItemId = request.getParameter(selectedMenuItemIdKey);

		HttpSession session = request.getSession();
		MdoUserContext userContext = (MdoUserContext) session.getAttribute(Constants.USER_SESSION_PREFIX_KEY);
		if (userContext == null) {
			MdoStrutsDispatcher.initSession(request);
		} else {
			if (selectedMenuItemId != null) {
				userContext.setSelectedMenuItemId(selectedMenuItemId);
			}
		}
		return invocation.invoke();
	}

	public String getSelectedMenuItemIdKey() {
		return selectedMenuItemIdKey;
	}

	public void setSelectedMenuItemIdKey(String selectedMenuItemIdKey) {
		this.selectedMenuItemIdKey = selectedMenuItemIdKey;
	}
}