Mercurial > jdk8-mips64-public > langtools / file revision

 /*

  * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

  *

  * This code is free software; you can redistribute it and/or modify it

  * under the terms of the GNU General Public License version 2 only, as

  * published by the Free Software Foundation.  Oracle designates this

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

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

  *

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

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

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

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

  * accompanied this code).

  *

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

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

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

  *

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

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

  * questions.

  */

 package com.sun.tools.jdeps;

 import java.io.File;

 import java.io.IOException;

 import java.nio.file.FileVisitResult;

 import java.nio.file.Files;

 import java.nio.file.Path;

 import java.nio.file.SimpleFileVisitor;

 import java.nio.file.attribute.BasicFileAttributes;

 import java.util.*;

 /**

  * ClassPath for Java SE and JDK

  */

 class PlatformClassPath {

     /*

      * Profiles for Java SE

      *

      * This is a temporary workaround until a common API is defined for langtools

      * to determine which profile a given classname belongs to.  The list of

      * packages and profile names are hardcoded in jdk.properties and

      * split packages are not supported.

      */

     static class Profile {

         final String name;

         final Set<String> packages;

         Profile(String name) {

             this.name = name;

             this.packages = new HashSet<String>();

         }

     }

     private final static String JAVAFX = "javafx";

     private final static Map<String,Profile> map = getProfilePackages();

     static String getProfileName(String packageName) {

         Profile profile = map.get(packageName);

         if (packageName.startsWith(JAVAFX + ".")) {

             profile = map.get(JAVAFX);

         }

         return profile != null ? profile.name : "";

     }

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

     static List<Archive> getArchives() {

         return javaHomeArchives;

     }

     static boolean contains(Archive archive) {

         return javaHomeArchives.contains(archive);

     }

     private static List<Archive> init() {

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

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

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

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

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

         try {

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

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

                 result.addAll(addJarFiles(lib));

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

                 // either a JRE or a jdk build image

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

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

                     // jdk build outputdir

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

                 }

                 // add other JAR files

                 result.addAll(addJarFiles(lib));

             } else {

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

             }

         } catch (IOException e) {

             throw new RuntimeException(e);

         }

         // add a JavaFX profile if there is jfxrt.jar

         for (Archive archive : result) {

             if (archive.getFileName().equals("jfxrt.jar")) {

                 map.put(JAVAFX, new Profile("jfxrt.jar"));

             }

         }

         return result;

     }

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

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

         final Path root = f.toPath();

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

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

             @Override

             public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs)

                 throws IOException

             {

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

                     return FileVisitResult.CONTINUE;

                 } else {

                     // skip other cobundled JAR files

                     return FileVisitResult.SKIP_SUBTREE;

                 }

             }

             @Override

             public FileVisitResult visitFile(Path file, BasicFileAttributes attrs)

                 throws IOException

             {

                 File f = file.toFile();

                 String fn = f.getName();

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

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

                 }

                 return FileVisitResult.CONTINUE;

             }

         });

         return result;

     }

     private static Map<String,Profile> getProfilePackages() {

         Map<String,Profile> map = new HashMap<String,Profile>();

         // read the properties as a ResourceBundle as the build compiles

         // the properties file into Java class.  Another alternative is

         // to load it as Properties and fix the build to exclude this file.

         ResourceBundle profileBundle =

             ResourceBundle.getBundle("com.sun.tools.jdeps.resources.jdk");

         int i=1;

         String key;

         while (profileBundle.containsKey((key = "profile." + i + ".name"))) {

             Profile profile = new Profile(profileBundle.getString(key));

             String n = profileBundle.getString("profile." + i + ".packages");

             String[] pkgs = n.split("\\s+");

             for (String p : pkgs) {

                 if (p.isEmpty()) continue;

                 assert(map.containsKey(p) == false);

                 profile.packages.add(p);

                 map.put(p, profile);

             }

             i++;

         }

         return map;

     }

 }