001// ***************************************************************************************************************************
002// * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.  See the NOTICE file *
003// * distributed with this work for additional information regarding copyright ownership.  The ASF licenses this file        *
004// * to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance            *
005// * with the License.  You may obtain a copy of the License at                                                              *
006// *                                                                                                                         *
007// *  http://www.apache.org/licenses/LICENSE-2.0                                                                             *
008// *                                                                                                                         *
009// * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an  *
010// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the License for the        *
011// * specific language governing permissions and limitations under the License.                                              *
012// ***************************************************************************************************************************
013package org.apache.juneau.utils;
014
015import java.io.*;
016import java.util.*;
017
018/**
019 * Same as {@link ClasspathResourceFinderBasic} but searches for resources up the parent class hierarchy chain.
020 */
021public class ClasspathResourceFinderRecursive extends ClasspathResourceFinderBasic {
022
023   /**
024    * Reusable instance.
025    */
026   public static final ClasspathResourceFinderRecursive INSTANCE = new ClasspathResourceFinderRecursive();
027
028   @Override /* ResourceFinder2 */
029   public InputStream findResource(Class<?> baseClass, String name, Locale locale) throws IOException {
030      while (baseClass != null) {
031         InputStream is = findClasspathResource(baseClass, name, locale);
032         if (is != null)
033            return is;
034         baseClass = baseClass.getSuperclass();
035      }
036      return findFileSystemResource(name, locale);
037   }
038}