| // Copyright 2008, 2009 The Apache Software Foundation |
| // |
| // 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.apache.tapestry5.internal.spring; |
| |
| import org.apache.tapestry5.ioc.internal.util.InternalUtils; |
| import org.apache.tapestry5.spring.ApplicationContextCustomizer; |
| import org.apache.tapestry5.spring.TapestryApplicationContext; |
| import org.springframework.context.ApplicationContextException; |
| import org.springframework.web.context.ConfigurableWebApplicationContext; |
| import org.springframework.web.context.ContextLoader; |
| |
| import javax.servlet.ServletContext; |
| |
| public class CustomizingContextLoader extends ContextLoader |
| { |
| private final ApplicationContextCustomizer customizer; |
| |
| public CustomizingContextLoader(ApplicationContextCustomizer customizer) |
| { |
| this.customizer = customizer; |
| } |
| |
| @Override |
| protected void customizeContext(ServletContext servletContext, ConfigurableWebApplicationContext applicationContext) |
| { |
| customizer.customizeApplicationContext(servletContext, applicationContext); |
| } |
| |
| @Override |
| protected Class determineContextClass(ServletContext servletContext) throws ApplicationContextException |
| { |
| String contextClassName = servletContext.getInitParameter(CONTEXT_CLASS_PARAM); |
| |
| if (InternalUtils.isNonBlank(contextClassName)) |
| { |
| Class result = super.determineContextClass(servletContext); |
| |
| if (!TapestryApplicationContext.class.isAssignableFrom(result)) |
| throw new IllegalArgumentException(String.format( |
| "When using the Tapestry/Spring integration library, you must specifiy a context class that extends from %s. Class %s does not. Update the '%s' servlet context init parameter.", |
| TapestryApplicationContext.class.getName(), |
| result.getName(), |
| CONTEXT_CLASS_PARAM)); |
| |
| return result; |
| } |
| |
| return TapestryApplicationContext.class; |
| } |
| } |