shoppageaction.java

噶额外噶外骨骼感广泛高热感 就 啊啊

/*
 * @author                        : Neelesh
 * @Version                       : 1.0
 *
 * Development Environment        : Oracle9i JDeveloper
 * Name of the File               : ShopPageAction.java
 * Creation/Modification History  :
 *
 * Neelesh   14-Jan-2003      Created
 *
 */
package oracle.otnsamples.vsm.actions.mall;


// Servlet and IO API
import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import oracle.otnsamples.util.MessageCache;
import oracle.otnsamples.util.ServiceLocator;
import oracle.otnsamples.vsm.services.MallNavigation;
import oracle.otnsamples.vsm.services.MallNavigationHome;
import oracle.otnsamples.vsm.services.ServiceException;
import oracle.otnsamples.vsm.services.data.Category;
import oracle.otnsamples.vsm.services.data.Shop;
import oracle.otnsamples.vsm.services.data.SubCategory;

import org.apache.struts.action.ActionError;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;


/**
 * The class stores the shop details in the request.Extends HomePageAction
 * class for details about the cart and navigation menus
 *
 * @author Neelesh
 * @version 1.0
 */
public class ShopPageAction extends HomePageAction {
  /**
   * This is the action called from the Struts framework to display the results
   * of item search
   *
   * @param <b>mapping</b> The ActionMapping used to select this instance.
   * @param <b>form</b> The optional ActionForm bean for this request.
   * @param <b>request</b> The HTTP Request we are processing.
   * @param <b>response</b> The HTTP Response we are processing.
   *
   * @return <b>ActionForward</b> The  control forward information
   *
   * @throws <b>IOException</b>
   * @throws <b>ServletException</b>
   */
  public ActionForward execute(
                               ActionMapping mapping, ActionForm form,
                               HttpServletRequest request,
                               HttpServletResponse response)
                               throws IOException, ServletException {

    // adds navigation related data to request
    super.execute(mapping, form, request, response);

    MallNavigationHome navigationHome =
      (MallNavigationHome) ServiceLocator.getLocator().getService("MallNavigation");
    MallNavigation navigation = null;

    try {
      navigation = navigationHome.create();

      String langID = getLocale(request).getLanguage();
      Shop shop     =
        navigation.getShop(request.getParameter("shopID"), langID);
      request.setAttribute("shop", shop);

      // Subcategories and shop name needed for the shop page
      SubCategory[] subCats =
        navigation.findSubCategoriesInShop(
                                           request.getParameter("shopID"),
                                           langID);
      request.setAttribute("subcats", subCats);
      // If the category name is present in the request,
      // add it as a request attribute
      if(request.getParameter("catName") != null) {
        request.setAttribute("catName", request.getParameter("catName"));
      } else {
        // else, find the category name and add it request
        Category category =
          navigation.getCategory(shop.getCategoryId(), langID);
        request.setAttribute("catName", category.getName());
      }
    } catch(ServiceException ex) {
      // handle errors
      servlet.log("ShopPageError", ex);            
      ActionErrors errors = new ActionErrors();
      errors.add(
                 "ShopPageError",
                 new ActionError(
                                 "error.shoppageaction",
                                 MessageCache.getMessage(
                                                         ex.getMessageCode(),
                                                         getLocale(request))));
      saveErrors(request, errors);
    } catch(Exception ex) {
      // handle errors
      servlet.log("ShopPageError", ex);
      ActionErrors errors = new ActionErrors();
      errors.add("ShopPageError", new ActionError("error.shoppageaction"));
      saveErrors(request, errors);
    } finally {
      // remove SLSB instance
      if(navigation != null) {

        try {
          navigation.remove();
        } catch(Exception ex) {
        }
      }
    }
    return mapping.findForward("success");
  }
}