| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.jasper.compiler; |
| |
| import java.io.File; |
| |
| import javax.servlet.ServletContext; |
| import javax.servlet.ServletContextEvent; |
| import javax.servlet.ServletContextListener; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import org.apache.catalina.Context; |
| import org.apache.catalina.startup.Tomcat; |
| import org.apache.catalina.startup.TomcatBaseTest; |
| import org.apache.jasper.JspCompilationContext; |
| import org.apache.jasper.compiler.ELInterpreterFactory.DefaultELInterpreter; |
| |
| public class TestELInterpreterFactory extends TomcatBaseTest { |
| |
| public static class SimpleELInterpreter implements ELInterpreter { |
| |
| @Override |
| public String interpreterCall(JspCompilationContext context, |
| boolean isTagFile, String expression, Class<?> expectedType, |
| String fnmapvar) { |
| return expression; |
| } |
| } |
| |
| @Test |
| public void testBug54239() throws Exception { |
| Tomcat tomcat = getTomcatInstance(); |
| |
| File appDir = new File("test/webapp"); |
| Context ctx = tomcat.addWebapp(null, "/test", appDir.getAbsolutePath()); |
| tomcat.start(); |
| |
| ServletContext context = ctx.getServletContext(); |
| |
| ELInterpreter interpreter = |
| ELInterpreterFactory.getELInterpreter(context); |
| Assert.assertNotNull(interpreter); |
| Assert.assertTrue(interpreter instanceof DefaultELInterpreter); |
| |
| context.removeAttribute(ELInterpreter.class.getName()); |
| |
| context.setAttribute(ELInterpreter.class.getName(), |
| SimpleELInterpreter.class.getName()); |
| interpreter = ELInterpreterFactory.getELInterpreter(context); |
| Assert.assertNotNull(interpreter); |
| Assert.assertTrue(interpreter instanceof SimpleELInterpreter); |
| |
| context.removeAttribute(ELInterpreter.class.getName()); |
| |
| SimpleELInterpreter simpleInterpreter = new SimpleELInterpreter(); |
| context.setAttribute(ELInterpreter.class.getName(), simpleInterpreter); |
| interpreter = ELInterpreterFactory.getELInterpreter(context); |
| Assert.assertNotNull(interpreter); |
| Assert.assertTrue(interpreter instanceof SimpleELInterpreter); |
| Assert.assertTrue(interpreter == simpleInterpreter); |
| |
| context.removeAttribute(ELInterpreter.class.getName()); |
| |
| ctx.stop(); |
| ctx.addApplicationListener(Bug54239Listener.class.getName()); |
| ctx.start(); |
| |
| interpreter = ELInterpreterFactory.getELInterpreter(ctx.getServletContext()); |
| Assert.assertNotNull(interpreter); |
| Assert.assertTrue(interpreter instanceof SimpleELInterpreter); |
| } |
| |
| public static class Bug54239Listener implements ServletContextListener { |
| |
| @Override |
| public void contextInitialized(ServletContextEvent sce) { |
| sce.getServletContext().setInitParameter(ELInterpreter.class.getName(), |
| SimpleELInterpreter.class.getName()); |
| } |
| |
| @Override |
| public void contextDestroyed(ServletContextEvent sce) { |
| // NO-OP |
| } |
| } |
| } |