1 package org.codehaus.plexus.compiler.eclipse; 2 3 /** 4 * The MIT License 5 * <p> 6 * Copyright (c) 2005, The Codehaus 7 * <p> 8 * Permission is hereby granted, free of charge, to any person obtaining a copy of 9 * this software and associated documentation files (the "Software"), to deal in 10 * the Software without restriction, including without limitation the rights to 11 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 12 * of the Software, and to permit persons to whom the Software is furnished to do 13 * so, subject to the following conditions: 14 * <p> 15 * The above copyright notice and this permission notice shall be included in all 16 * copies or substantial portions of the Software. 17 * <p> 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 24 * SOFTWARE. 25 */ 26 import java.io.File; 27 import java.util.HashMap; 28 import java.util.List; 29 import java.util.Map; 30 31 /** 32 * @author <a href="mailto:trygvis@inamo.no">Trygve Laugstøl</a> 33 */ 34 public class SourceCodeLocator { 35 private List<String> sourceRoots; 36 37 private Map<String, File> cache; 38 39 public SourceCodeLocator(List<String> sourceRoots) { 40 this.sourceRoots = sourceRoots; 41 42 cache = new HashMap<>(); 43 } 44 45 public File findSourceCodeForClass(String className) { 46 File f = cache.get(className); 47 48 if (f != null) { 49 return f; 50 } 51 52 String sourceName = 53 className.replace('.', System.getProperty("file.separator").charAt(0)); 54 55 sourceName += ".java"; 56 57 f = findInRoots(sourceName); 58 59 cache.put(className, f); 60 61 return f; 62 } 63 64 private File findInRoots(String s) { 65 for (String root : sourceRoots) { 66 File f = new File(root, s); 67 68 if (f.exists()) { 69 return f; 70 } 71 } 72 73 return null; 74 } 75 }