| /* |
| * 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.commons.configuration2.web; |
| |
| import java.util.Collections; |
| import java.util.Enumeration; |
| import java.util.Iterator; |
| import java.util.Objects; |
| |
| import javax.servlet.Servlet; |
| import javax.servlet.ServletContext; |
| |
| /** |
| * A configuration wrapper to read the initialization parameters of a servlet context. This configuration is read only, |
| * adding or removing a property will throw an UnsupportedOperationException. |
| * |
| * @since 1.1 |
| */ |
| public class ServletContextConfiguration extends BaseWebConfiguration { |
| |
| /** Stores the wrapped servlet context. */ |
| protected ServletContext context; |
| |
| /** |
| * Create a ServletContextConfiguration using the context of the specified servlet. |
| * |
| * @param servlet the servlet |
| */ |
| public ServletContextConfiguration(final Servlet servlet) { |
| this.context = Objects.requireNonNull(servlet, "servlet").getServletConfig().getServletContext(); |
| } |
| |
| /** |
| * Create a ServletContextConfiguration using the servlet context initialization parameters. |
| * |
| * @param context the servlet context |
| */ |
| public ServletContextConfiguration(final ServletContext context) { |
| this.context = Objects.requireNonNull(context, "context"); |
| } |
| |
| @Override |
| protected Iterator<String> getKeysInternal() { |
| // According to the documentation of getInitParameterNames() the |
| // enumeration is of type String. |
| final Enumeration<String> en = context.getInitParameterNames(); |
| return Collections.list(en).iterator(); |
| } |
| |
| @Override |
| protected Object getPropertyInternal(final String key) { |
| return handleDelimiters(context.getInitParameter(key)); |
| } |
| } |