org.theospi.utils.mvc.impl.MultiModelViewController.java Source code

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Here is the source code for org.theospi.utils.mvc.impl.MultiModelViewController.java

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/**********************************************************************************
* $URL:https://source.sakaiproject.org/svn/osp/trunk/common/tool-lib/src/java/org/theospi/utils/mvc/impl/MultiModelViewController.java $
* $Id:MultiModelViewController.java 9134 2006-05-08 20:28:42Z chmaurer@iupui.edu $
***********************************************************************************
*
 * Copyright (c) 2005, 2006, 2008 The Sakai Foundation
 *
 * Licensed under the Educational Community License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.opensource.org/licenses/ECL-2.0
 *
 * 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 org.theospi.utils.mvc.impl;

import java.util.ArrayList;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.sakaiproject.metaobj.utils.mvc.intf.Controller;
import org.sakaiproject.metaobj.utils.mvc.intf.CustomCommandController;
import org.sakaiproject.metaobj.utils.mvc.intf.LoadObjectController;
import org.springframework.validation.Errors;
import org.springframework.web.servlet.ModelAndView;

public class MultiModelViewController implements LoadObjectController, CustomCommandController {
    protected final Log logger = LogFactory.getLog(getClass());

    private List controllers = null;

    public Object formBackingObject(Map request, Map session, Map application) {
        List currentList = new ArrayList();

        for (Iterator i = controllers.iterator(); i.hasNext();) {
            Controller controller = (Controller) i.next();
            ControllerWrapper wrapper = new ControllerWrapper();
            wrapper.controller = controller;
            if (controller instanceof CustomCommandController) {
                wrapper.currentObject = ((CustomCommandController) controller).formBackingObject(request, session,
                        application);
            }
            currentList.add(wrapper);
        }

        return currentList;
    }

    public Object fillBackingObject(Object incomingModel, Map request, Map session, Map application)
            throws Exception {

        List currentList = (List) incomingModel;

        for (Iterator i = currentList.iterator(); i.hasNext();) {
            ControllerWrapper controller = (ControllerWrapper) i.next();

            if (controller instanceof LoadObjectController) {
                controller.currentObject = ((LoadObjectController) controller.controller)
                        .fillBackingObject(controller.currentObject, request, session, application);
            }
        }

        return currentList;
    }

    public ModelAndView handleRequest(Object requestModel, Map request, Map session, Map application,
            Errors errors) {

        List currentList = (List) requestModel;
        Hashtable globalMap = new Hashtable();

        for (Iterator i = currentList.iterator(); i.hasNext();) {
            ControllerWrapper controller = (ControllerWrapper) i.next();
            ModelAndView controllerMv = controller.controller.handleRequest(controller.currentObject, request,
                    session, application, errors);
            globalMap.putAll(controllerMv.getModel());
        }

        return new ModelAndView("success", globalMap);
    }

    private class ControllerWrapper {
        public Controller controller;
        public Object currentObject;
    }

    public List getControllers() {
        return controllers;
    }

    public void setControllers(List controllers) {
        this.controllers = controllers;
    }

}