1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, 13 * software distributed under the License is distributed on an 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 15 * KIND, either express or implied. See the License for the 16 * specific language governing permissions and limitations 17 * under the License. 18 */ 19 package org.apache.myfaces.webapp; 20 21 import javax.el.ExpressionFactory; 22 import javax.faces.FacesException; 23 import javax.faces.context.ExternalContext; 24 import javax.servlet.ServletContext; 25 26 /** 27 * This initializer initializes only Facelets. Specially checks for 28 * org.apache.myfaces.EXPRESSION_FACTORY parameter. 29 * 30 * @author Martin Koci 31 */ 32 public class FaceletsInitilializer extends org.apache.myfaces.webapp.AbstractFacesInitializer 33 { 34 35 @Override 36 protected void initContainerIntegration(ServletContext servletContext, ExternalContext externalContext) 37 { 38 39 ExpressionFactory expressionFactory = getUserDefinedExpressionFactory(externalContext); 40 if (expressionFactory == null) 41 { 42 throw new FacesException("No javax.el.ExpressionFactory found. Please provide" + 43 " <context-param> in web.xml: org.apache.myfaces.EXPRESSION_FACTORY"); 44 } 45 46 buildConfiguration(servletContext, externalContext, expressionFactory); 47 } 48 49 }