1 /*
   2  * Copyright (c) 2013, 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 package sun.hotspot.tools.ctw;
  25 
  26 import java.io.IOException;
  27 import java.nio.file.DirectoryStream;
  28 import java.nio.file.Files;
  29 import java.nio.file.Path;
  30 import java.util.concurrent.Executor;
  31 
  32 /**
  33  * Handler for dirs containing jar-files with classes to compile.
  34  */
  35 public class ClassPathJarInDirEntry extends PathHandler {
  36 
  37     public ClassPathJarInDirEntry(Path root, Executor executor) {
  38         super(root, executor);
  39     }
  40 
  41     @Override
  42     public void process() {
  43         CompileTheWorld.OUT.println("# jar_in_dir: " + root);
  44         if (!Files.exists(root)) {
  45             return;
  46         }
  47         try (DirectoryStream<Path> ds
  48                 = Files.newDirectoryStream(root, "*.jar")) {
  49             for (Path p : ds) {
  50                 new ClassPathJarEntry(p, executor).process();
  51                 if (isFinished()) {
  52                     return;
  53                 }
  54             }
  55         } catch (IOException ioe) {
  56             ioe.printStackTrace();
  57         }
  58     }
  59 
  60     @Override
  61     public long classCount() {
  62         try {
  63             return Files.list(root)
  64                     .filter(p -> p.getFileName().toString().endsWith(".jar"))
  65                     .map(p -> new ClassPathJarEntry(p, executor))
  66                     .mapToLong(ClassPathJarEntry::classCount).sum();
  67         } catch (IOException e) {
  68             throw new Error("can not walk dir " + root + " : "
  69                     + e.getMessage(), e);
  70         }
  71     }
  72 }
  73