jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/jdeps/PlatformClassPath.java@defadd528513

8015912: jdeps support to output in dot file format
8026255: Switch jdeps to follow traditional Java option style
Reviewed-by: alanb

     1 /*

     2  * Copyright (c) 2012, 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.  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.IOException;

    28 import java.nio.file.FileVisitResult;

    29 import java.nio.file.Files;

    30 import java.nio.file.Path;

    31 import java.nio.file.Paths;

    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();

    42     static List<Archive> getArchives() {

    43         return javaHomeArchives;

    44     }

    46     private static List<Archive> init() {

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

    48         Path home = Paths.get(System.getProperty("java.home"));

    49         try {

    50             if (home.endsWith("jre")) {

    51                 // jar files in <javahome>/jre/lib

    52                 result.addAll(addJarFiles(home.resolve("lib")));

    53             } else if (Files.exists(home.resolve("lib"))) {

    54                 // either a JRE or a jdk build image

    55                 Path classes = home.resolve("classes");

    56                 if (Files.isDirectory(classes)) {

    57                     // jdk build outputdir

    58                     result.add(new JDKArchive(classes, ClassFileReader.newInstance(classes)));

    59                 }

    60                 // add other JAR files

    61                 result.addAll(addJarFiles(home.resolve("lib")));

    62             } else {

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

    64             }

    65             return result;

    66         } catch (IOException e) {

    67             throw new Error(e);

    68         }

    69     }

    71     private static List<Archive> addJarFiles(final Path root) throws IOException {

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

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

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

    75             @Override

    76             public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs)

    77                 throws IOException

    78             {

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

    80                     return FileVisitResult.CONTINUE;

    81                 } else {

    82                     // skip other cobundled JAR files

    83                     return FileVisitResult.SKIP_SUBTREE;

    84                 }

    85             }

    86             @Override

    87             public FileVisitResult visitFile(Path p, BasicFileAttributes attrs)

    88                 throws IOException

    89             {

    90                 String fn = p.getFileName().toString();

    91                 if (fn.endsWith(".jar")) {

    92                     // JDK may cobundle with JavaFX that doesn't belong to any profile

    93                     // Treat jfxrt.jar as regular Archive

    94                     result.add(fn.equals("jfxrt.jar")

    95                         ? new Archive(p, ClassFileReader.newInstance(p))

    96                         : new JDKArchive(p, ClassFileReader.newInstance(p)));

    97                 }

    98                 return FileVisitResult.CONTINUE;

    99             }

   100         });

   101         return result;

   102     }

   104     /**

   105      * A JDK archive is part of the JDK containing the Java SE API

   106      * or implementation classes (i.e. JDK internal API)

   107      */

   108     static class JDKArchive extends Archive {

   109         JDKArchive(Path p, ClassFileReader reader) {

   110             super(p, reader);

   111         }

   112     }

   113 }

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