/*
 * This file was automatically generated by MD4J. 
 * 
 * Licensed under the GNU General Public License, Version 2.0 (the "License") or above;
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 * *http://www.gnu.org/licenses/gpl.txt
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 */
package gr.abiss.md4j.sampledomain.web;

import java.io.Serializable;

import java.util.HashMap;
import java.util.Map;
import java.util.Iterator;

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

import org.apache.log4j.Logger;
import org.apache.commons.lang.math.NumberUtils;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;
import org.apache.struts.action.ActionMapping;

import org.apache.commons.beanutils.BeanUtils;

import javax.ejb.EJBException;

import gr.abiss.md4j.dto.File;
import gr.abiss.md4j.business.BrokenConstraintsException;
import org.apache.struts.action.Action;
import gr.abiss.md4j.util.StringUtil;

import gr.abiss.md4j.sampledomain.web.CityCrudForm;
import gr.abiss.md4j.sampledomain.business.CityManagerLocal;
import gr.abiss.md4j.sampledomain.business.CityManagerUtil;

/**
 * @struts.action path="/City/Create" 
 *                         name="CityCrudForm"
 *                         input="/City/LoadCreate.do"
 *                         scope="request"
 *                         validate="true"
 *
 *
 * @struts.action-forward path="/City/View.do"
 *                         name="CityCreateAction" redirect="true"
 *
 */
public class CityCreateAction extends Action{

    private static Logger log = Logger.getLogger(CityCreateAction.class);

    /**
     * @see org.apache.struts.action.Action#execute(org.apache.struts.action.ActionMapping, org.apache.struts.action.ActionForm, javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
     */
    public ActionForward execute(ActionMapping mapping, ActionForm actionForm, HttpServletRequest request, HttpServletResponse response) {
        ActionForward fwd = null;
        try{
            CityCrudForm form = (CityCrudForm) actionForm;
            if(this.isTokenValid(request, true)) {
                CityManagerLocal manager = CityManagerUtil.getLocalHome().create();
                Map params = form.toMap();

        // md4j:oncreate-update-code-before-business
                form.setId(manager.save(params).toString());
                ActionForward basefw = mapping.findForward("CityCreateAction");
                fwd = new ActionForward(basefw.getPath()+"?id="+java.net.URLEncoder.encode(form.getId(), "UTF-8"), true);
            }
            // invalid token, try to redirect to view if identifier is available 
            else if(form.getId() != null){
                ActionForward basefw = mapping.findForward("CityCreateAction");
                fwd = new ActionForward(basefw.getPath()+"?id="+java.net.URLEncoder.encode(form.getId(), "UTF-8"), true);
            }
            // if no identifier is available, save an error message and FW to error page 
            else {
                ActionMessages messages = new ActionMessages();
                messages.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage("invalid input, probably taken value for unique field"));
                this.addMessages(request, messages);
            }
        } 
        catch (EJBException e) {
            // see if this is  a business validation caused exception, report as appropriate
            Exception cause = e.getCausedByException();
            if(cause.getClass().equals(BrokenConstraintsException.class)){
                ActionMessages messages = new ActionMessages();
                for(Iterator iter =  ((BrokenConstraintsException) cause).getViolated().iterator();iter.hasNext();){
                    String key = (String) iter.next();
                    // is this the right key?
                    messages.add(key, new ActionMessage("errors.unique"));
                    this.addMessages(request, messages);
                }
                fwd = mapping.getInputForward();
            }
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
        return fwd != null ? fwd : mapping.findForward("error");
    }

}