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/*
* 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.catalina.core;
import java.util.Enumeration;
import jakarta.servlet.ServletConfig;
import jakarta.servlet.ServletContext;
/**
* Facade for the <b>StandardWrapper</b> object.
*
* @author Remy Maucherat
*/
public final class StandardWrapperFacade implements ServletConfig {
// ----------------------------------------------------------- Constructors
/**
* Create a new facade around a StandardWrapper.
*
* @param config the associated wrapper
*/
public StandardWrapperFacade(StandardWrapper config) {
super();
this.config = config;
}
// ----------------------------------------------------- Instance Variables
/**
* Wrapped config.
*/
private final ServletConfig config;
/**
* Wrapped context (facade).
*/
private ServletContext context = null;
// -------------------------------------------------- ServletConfig Methods
@Override
public String getServletName() {
return config.getServletName();
}
@Override
public ServletContext getServletContext() {
/*
* This method may be called concurrently but the same context object will always be returned. There is no
* concurrency issue here.
*/
if (context == null) {
context = config.getServletContext();
if (context instanceof ApplicationContext) {
context = ((ApplicationContext) context).getFacade();
}
}
return context;
}
@Override
public String getInitParameter(String name) {
return config.getInitParameter(name);
}
@Override
public Enumeration<String> getInitParameterNames() {
return config.getInitParameterNames();
}
}
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