1 /*
   2  * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 
  25 
  26 package jdk.tools.jaotc.collect.classname;
  27 
  28 import jdk.tools.jaotc.collect.ClassSource;
  29 import jdk.tools.jaotc.collect.FileSupport;
  30 import jdk.tools.jaotc.collect.SearchPath;
  31 import jdk.tools.jaotc.collect.SourceProvider;
  32 
  33 import java.nio.file.Path;
  34 import java.nio.file.Paths;
  35 
  36 public final class ClassNameSourceProvider implements SourceProvider {
  37     public static final String TYPE = "class";
  38     private final ClassLoader classLoader;
  39 
  40     public ClassNameSourceProvider(FileSupport fileSupport) {
  41         String classPath = System.getProperty("java.class.path");
  42         ClassLoader systemClassLoader = ClassLoader.getSystemClassLoader();
  43         if (classPath != null && !classPath.isEmpty()) {
  44             classLoader = systemClassLoader;
  45         } else {
  46             Path path = Paths.get(".").toAbsolutePath();
  47             classLoader = fileSupport.createClassLoader(path, systemClassLoader);
  48         }
  49     }
  50 
  51     @Override
  52     public ClassSource findSource(String name0, SearchPath searchPath) {
  53         String name = name0;
  54         Path path = Paths.get(name);
  55         if (ClassSource.pathIsClassFile(path)) {
  56             name = ClassSource.makeClassName(path);
  57         }
  58         try {
  59             classLoader.loadClass(name);
  60             return new ClassNameSource(name, classLoader);
  61         } catch (ClassNotFoundException e) {
  62             return null;
  63         }
  64     }
  65 
  66     @Override
  67     public boolean supports(String type) {
  68         return TYPE.equals(type);
  69     }
  70 }