001/* 002 * Copyright 2002-2014 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.web.context.support; 018 019import javax.servlet.ServletContext; 020 021import org.springframework.core.env.EnumerablePropertySource; 022import org.springframework.core.env.PropertySource; 023import org.springframework.lang.Nullable; 024import org.springframework.util.StringUtils; 025 026/** 027 * {@link PropertySource} that reads init parameters from a {@link ServletContext} object. 028 * 029 * @author Chris Beams 030 * @since 3.1 031 * @see ServletConfigPropertySource 032 */ 033public class ServletContextPropertySource extends EnumerablePropertySource<ServletContext> { 034 035 public ServletContextPropertySource(String name, ServletContext servletContext) { 036 super(name, servletContext); 037 } 038 039 @Override 040 public String[] getPropertyNames() { 041 return StringUtils.toStringArray(this.source.getInitParameterNames()); 042 } 043 044 @Override 045 @Nullable 046 public String getProperty(String name) { 047 return this.source.getInitParameter(name); 048 } 049 050}