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 018import org.apache.juneau.cp.*; 019 020/** 021 * Utility class for finding resources for a class. 022 * 023 * <p> 024 * Same as {@link ClasspathResourceFinderSimple}, but first searches the working directory for the file before 025 * looking in the classpath. 026 * <br>Path traversals outside the working directory are not allowed for security reasons. 027 * 028 * @deprecated Use {@link SimpleResourceFinder}. 029 */ 030@Deprecated 031public class ClasspathResourceFinderBasic extends ClasspathResourceFinderSimple { 032 033 /** 034 * Reusable instance. 035 */ 036 public static final ClasspathResourceFinderBasic INSTANCE = new ClasspathResourceFinderBasic(); 037 038 @Override /* ClasspathResourceFinder */ 039 public InputStream findResource(Class<?> baseClass, String name, Locale locale) throws IOException { 040 InputStream is = findFileSystemResource(name, locale); 041 if (is != null) 042 return is; 043 return findClasspathResource(baseClass, name, locale); 044 } 045 046 /** 047 * Workhorse method for retrieving a resource from the file system. 048 * 049 * <p> 050 * This method can be overridden by subclasses to provide customized handling of resource retrieval from file systems. 051 * 052 * @param name The resource name. 053 * @param locale 054 * The resource locale. 055 * <br>Can be <jk>null</jk>. 056 * @return The resource stream, or <jk>null</jk> if it couldn't be found. 057 * @throws IOException Thrown by underlying stream. 058 */ 059 protected InputStream findFileSystemResource(String name, Locale locale) throws IOException { 060 if (name.indexOf("..") == -1) { 061 for (String n2 : getCandidateFileNames(name, locale)) { 062 File f = new File(n2); 063 if (f.exists() && f.canRead() && ! f.isAbsolute()) { 064 return new FileInputStream(f); 065 } 066 } 067 } 068 return null; 069 } 070}