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StaticWebApplicationContext.java
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StaticWebApplicationContext.java
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/*
* Copyright 2002-2013 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.springframework.web.context.support;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.context.support.StaticApplicationContext;
import org.springframework.core.env.ConfigurableEnvironment;
import org.springframework.core.io.Resource;
import org.springframework.core.io.support.ResourcePatternResolver;
import org.springframework.ui.context.Theme;
import org.springframework.ui.context.ThemeSource;
import org.springframework.ui.context.support.UiApplicationContextUtils;
import org.springframework.web.context.ConfigurableWebApplicationContext;
import org.springframework.web.context.ServletConfigAware;
import org.springframework.web.context.ServletContextAware;
/**
* Static {@link org.springframework.web.context.WebApplicationContext}
* implementation for testing. Not intended for use in production applications.
*
* <p>Implements the {@link org.springframework.web.context.ConfigurableWebApplicationContext}
* interface to allow for direct replacement of an {@link XmlWebApplicationContext},
* despite not actually supporting external configuration files.
*
* <p>Interprets resource paths as servlet context resources, i.e. as paths beneath
* the web application root. Absolute paths, e.g. for files outside the web app root,
* can be accessed via "file:" URLs, as implemented by
* {@link org.springframework.core.io.DefaultResourceLoader}.
*
* <p>In addition to the special beans detected by
* {@link org.springframework.context.support.AbstractApplicationContext},
* this class detects a bean of type {@link org.springframework.ui.context.ThemeSource}
* in the context, under the special bean name "themeSource".
*
* @author Rod Johnson
* @author Juergen Hoeller
* @see org.springframework.ui.context.ThemeSource
*/
public class StaticWebApplicationContext extends StaticApplicationContext
implements ConfigurableWebApplicationContext, ThemeSource {
private ServletContext servletContext;
private ServletConfig servletConfig;
private String namespace;
private ThemeSource themeSource;
public StaticWebApplicationContext() {
setDisplayName("Root WebApplicationContext");
}
/**
* Set the ServletContext that this WebApplicationContext runs in.
*/
public void setServletContext(ServletContext servletContext) {
this.servletContext = servletContext;
}
public ServletContext getServletContext() {
return this.servletContext;
}
public void setServletConfig(ServletConfig servletConfig) {
this.servletConfig = servletConfig;
if (servletConfig != null && this.servletContext == null) {
this.servletContext = servletConfig.getServletContext();
}
}
public ServletConfig getServletConfig() {
return this.servletConfig;
}
public void setNamespace(String namespace) {
this.namespace = namespace;
if (namespace != null) {
setDisplayName("WebApplicationContext for namespace '" + namespace + "'");
}
}
public String getNamespace() {
return this.namespace;
}
/**
* The {@link StaticWebApplicationContext} class does not support this method.
* @throws UnsupportedOperationException <b>always</b>
*/
public void setConfigLocation(String configLocation) {
if (configLocation != null) {
throw new UnsupportedOperationException("StaticWebApplicationContext does not support config locations");
}
}
/**
* The {@link StaticWebApplicationContext} class does not support this method.
* @throws UnsupportedOperationException <b>always</b>
*/
public void setConfigLocations(String[] configLocations) {
if (configLocations != null) {
throw new UnsupportedOperationException("StaticWebApplicationContext does not support config locations");
}
}
public String[] getConfigLocations() {
return null;
}
/**
* Register request/session scopes, a {@link ServletContextAwareProcessor}, etc.
*/
@Override
protected void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) {
beanFactory.addBeanPostProcessor(new ServletContextAwareProcessor(this.servletContext, this.servletConfig));
beanFactory.ignoreDependencyInterface(ServletContextAware.class);
beanFactory.ignoreDependencyInterface(ServletConfigAware.class);
WebApplicationContextUtils.registerWebApplicationScopes(beanFactory, this.servletContext);
WebApplicationContextUtils.registerEnvironmentBeans(beanFactory, this.servletContext, this.servletConfig);
}
/**
* This implementation supports file paths beneath the root of the ServletContext.
* @see ServletContextResource
*/
@Override
protected Resource getResourceByPath(String path) {
return new ServletContextResource(this.servletContext, path);
}
/**
* This implementation supports pattern matching in unexpanded WARs too.
* @see ServletContextResourcePatternResolver
*/
@Override
protected ResourcePatternResolver getResourcePatternResolver() {
return new ServletContextResourcePatternResolver(this);
}
/**
* Create and return a new {@link StandardServletEnvironment}.
*/
@Override
protected ConfigurableEnvironment createEnvironment() {
return new StandardServletEnvironment();
}
/**
* Initialize the theme capability.
*/
@Override
protected void onRefresh() {
this.themeSource = UiApplicationContextUtils.initThemeSource(this);
}
@Override
protected void initPropertySources() {
super.initPropertySources();
WebApplicationContextUtils.initServletPropertySources(
this.getEnvironment().getPropertySources(), this.servletContext, this.servletConfig);
}
public Theme getTheme(String themeName) {
return this.themeSource.getTheme(themeName);
}
}