jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/jdeps/PlatformClassPath.java@fd3fdaff0257

8005428: Update jdeps to read the same profile information as by javac
Reviewed-by: alanb

     1 /*

     2  * Copyright (c) 2012, 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.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 package com.sun.tools.jdeps;

    27 import java.io.File;

    28 import java.io.IOException;

    29 import java.nio.file.FileVisitResult;

    30 import java.nio.file.Files;

    31 import java.nio.file.Path;

    32 import java.nio.file.SimpleFileVisitor;

    33 import java.nio.file.attribute.BasicFileAttributes;

    34 import java.util.*;

    36 /**

    37  * ClassPath for Java SE and JDK

    38  */

    39 class PlatformClassPath {

    40     private final static List<Archive> javaHomeArchives = init();

    41     static List<Archive> getArchives() {

    42         return javaHomeArchives;

    43     }

    45     static boolean contains(Archive archive) {

    46         return javaHomeArchives.contains(archive);

    47     }

    49     private static List<Archive> init() {

    50         List<Archive> result = new ArrayList<Archive>();

    51         String javaHome = System.getProperty("java.home");

    52         List<File> files = new ArrayList<File>();

    53         File jre = new File(javaHome, "jre");

    54         File lib = new File(javaHome, "lib");

    56         try {

    57             if (jre.exists() && jre.isDirectory()) {

    58                 result.addAll(addJarFiles(new File(jre, "lib")));

    59                 result.addAll(addJarFiles(lib));

    60             } else if (lib.exists() && lib.isDirectory()) {

    61                 // either a JRE or a jdk build image

    62                 File classes = new File(javaHome, "classes");

    63                 if (classes.exists() && classes.isDirectory()) {

    64                     // jdk build outputdir

    65                     result.add(new Archive(classes, ClassFileReader.newInstance(classes)));

    66                 }

    67                 // add other JAR files

    68                 result.addAll(addJarFiles(lib));

    69             } else {

    70                 throw new RuntimeException("\"" + javaHome + "\" not a JDK home");

    71             }

    72         } catch (IOException e) {

    73             throw new RuntimeException(e);

    74         }

    75         return result;

    76     }

    78     private static List<Archive> addJarFiles(File f) throws IOException {

    79         final List<Archive> result = new ArrayList<Archive>();

    80         final Path root = f.toPath();

    81         final Path ext = root.resolve("ext");

    82         Files.walkFileTree(root, new SimpleFileVisitor<Path>() {

    83             @Override

    84             public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs)

    85                 throws IOException

    86             {

    87                 if (dir.equals(root) || dir.equals(ext)) {

    88                     return FileVisitResult.CONTINUE;

    89                 } else {

    90                     // skip other cobundled JAR files

    91                     return FileVisitResult.SKIP_SUBTREE;

    92                 }

    93             }

    94             @Override

    95             public FileVisitResult visitFile(Path file, BasicFileAttributes attrs)

    96                 throws IOException

    97             {

    98                 File f = file.toFile();

    99                 String fn = f.getName();

   100                 if (fn.endsWith(".jar") && !fn.equals("alt-rt.jar")) {

   101                     result.add(new Archive(f, ClassFileReader.newInstance(f)));

   102                 }

   103                 return FileVisitResult.CONTINUE;

   104             }

   105         });

   106         return result;

   107     }

   108 }

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