cancelorderaction.java

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


// IO and servlet 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.OrderException;
import oracle.otnsamples.vsm.services.OrderManagement;
import oracle.otnsamples.vsm.services.OrderManagementHome;

import org.apache.struts.action.Action;
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;


/**
 * This Action class cancels an order specified by the user.
 * 
 * @author Sujatha
 * @version 1.0
 */
public class CancelOrderAction extends Action {
  /**
   * This is the action called from the Struts framework to cancel an order
   *
   * @param mapping The ActionMapping used to select this instance.
   * @param form The optional ActionForm bean for this request.
   * @param request The HTTP Request we are processing.
   * @param response The HTTP Response we are processing.
   */
  public ActionForward execute(
                               ActionMapping mapping, ActionForm form,
                               HttpServletRequest request,
                               HttpServletResponse response)
                               throws IOException, ServletException {

    OrderManagementHome orderHome = null;
    OrderManagement orderBean     = null;

    try {
      orderHome =
        (OrderManagementHome) ServiceLocator.getLocator().getService("OrderManagement");
      orderBean = orderHome.create();

      String orderID = (String) request.getParameter("orderID");
      String itemID  = (String) request.getParameter("itemID");

      if(orderID != null && itemID != null) {
        orderBean.cancelOrderItem(orderID, itemID);
        request.setAttribute(
                             "message",
                             MessageCache.getMessage(
                                                     "message.cancelorder.success",
                                                     getLocale(request)));
      }
    } catch(OrderException ex) {
      servlet.log("CancelOrderError", ex);
      request.setAttribute(
                           "message",
                           MessageCache.getMessage(
                                                   ex.getMessageCode(),
                                                   getLocale(request)));

      return mapping.findForward("display");
    } catch(Exception ex) {
      servlet.log("CancelOrderError", ex);                
      ActionErrors errors = new ActionErrors();
      errors.add(
                 "OrderError", new ActionError("common.error", ex.getMessage()));
      saveErrors(request, errors);

      return mapping.findForward("error");
    } finally {

      try {
        if(orderBean != null) {
          orderBean.remove();
        }
      } catch(Exception ex) {
      }
    }
    return mapping.findForward("success");
  }
}