| /* |
| * Copyright 2004-2005 the original author or authors. |
| * |
| * 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.codehaus.groovy.grails.web.pageflow; |
| |
| import groovy.lang.Closure; |
| |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| import org.springframework.util.Assert; |
| import org.springframework.webflow.RequestContext; |
| import org.springframework.webflow.ViewDescriptor; |
| import org.springframework.webflow.ViewDescriptorCreator; |
| |
| /** |
| * <p>All closures in the model associated with a view |
| * state will be executed everytime a (@link org.springframework.webflow.ViewDescriptor} |
| * is created. |
| * |
| * @author Steven Devijver |
| * @since Jul 10, 2005 |
| */ |
| public class ModelViewDescriptorCreator implements ViewDescriptorCreator { |
| |
| private Map model = null; |
| private String viewName = null; |
| |
| public ModelViewDescriptorCreator(Map model) { |
| super(); |
| this.model = model; |
| } |
| |
| public ModelViewDescriptorCreator(String viewName, Map model) { |
| this(model); |
| Assert.notNull(viewName); |
| this.viewName = viewName; |
| } |
| |
| public ViewDescriptor createViewDescriptor(RequestContext requestContext) { |
| Map tmpModel = new HashMap(requestContext.getModel()); |
| if (this.model != null) { |
| for (Iterator iter = this.model.entrySet().iterator(); iter.hasNext();) { |
| Map.Entry entry = (Map.Entry)iter.next(); |
| if (entry.getValue() != null && entry.getValue() instanceof Closure) { |
| tmpModel.put(entry.getKey(), ((Closure)entry.getValue()).call(new Object[] { requestContext })); |
| } else { |
| tmpModel.put(entry.getKey(), entry.getValue()); |
| } |
| } |
| } |
| return new ViewDescriptor(viewName, tmpModel); |
| } |
| |
| } |