/*

  * Copyright 2004-2011 the Seasar Foundation and the Others.

  *

  * Licensed under the Apache 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.apache.org/licenses/LICENSE-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.seasar.teeda.core.util;

 import java.util.Iterator;

 import java.util.List;

 import javax.faces.component.UIComponent;

 import javax.faces.component.UIParameter;

 import javax.faces.context.FacesContext;

 import org.seasar.framework.beans.BeanDesc;

 import org.seasar.framework.beans.PropertyDesc;

 import org.seasar.framework.beans.factory.BeanDescFactory;

 import org.seasar.framework.util.AssertionUtil;

 public class UIParameterUtil {

     private UIParameterUtil() {

     }

     public static void saveParametersToRequest(UIComponent component,

             FacesContext context) {

         List children = component.getChildren();

         for (int i = 0; i < children.size(); ++i) {

             Object o = (UIComponent) children.get(i);

             if (o instanceof UIParameter) {

                 UIParameter param = (UIParameter) o;

                 context.getExternalContext().getRequestMap().put(

                         param.getName(), param.getValue());

             }

         }

     }

     public static void saveParametersToInstance(UIComponent component,

             Object obj) {

         AssertionUtil.assertNotNull("component", component);

         AssertionUtil.assertNotNull("obj", obj);

         for (Iterator itr = component.getChildren().iterator(); itr.hasNext();) {

             Object o = itr.next();

             if (o instanceof UIParameter) {

                 UIParameter param = (UIParameter) o;

                 String name = param.getName();

                 Object value = param.getValue();

                 BeanDesc beanDesc = BeanDescFactory.getBeanDesc(obj.getClass());

                 if (beanDesc.hasPropertyDesc(name)) {

                     PropertyDesc propertyDesc = beanDesc.getPropertyDesc(name);

                     if (propertyDesc.isWritable()) {

                         propertyDesc.setValue(obj, value);

                     }

                 }

             }

         }

     }

 }