org.springframework.boot.web.servlet.context.WebApplicationContextServletContextAwareProcessor Maven / Gradle / Ivy
/*
* Copyright 2012-2018 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
*
* https://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.springframework.boot.web.servlet.context;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import org.springframework.util.Assert;
import org.springframework.web.context.ConfigurableWebApplicationContext;
import org.springframework.web.context.support.ServletContextAwareProcessor;
/**
* Variant of {@link ServletContextAwareProcessor} for use with a
* {@link ConfigurableWebApplicationContext}. Can be used when registering the processor
* can occur before the {@link ServletContext} or {@link ServletConfig} have been
* initialized.
*
* @author Phillip Webb
*/
public class WebApplicationContextServletContextAwareProcessor
extends ServletContextAwareProcessor {
private final ConfigurableWebApplicationContext webApplicationContext;
public WebApplicationContextServletContextAwareProcessor(
ConfigurableWebApplicationContext webApplicationContext) {
Assert.notNull(webApplicationContext, "WebApplicationContext must not be null");
this.webApplicationContext = webApplicationContext;
}
@Override
protected ServletContext getServletContext() {
ServletContext servletContext = this.webApplicationContext.getServletContext();
return (servletContext != null) ? servletContext : super.getServletContext();
}
@Override
protected ServletConfig getServletConfig() {
ServletConfig servletConfig = this.webApplicationContext.getServletConfig();
return (servletConfig != null) ? servletConfig : super.getServletConfig();
}
}