aoqi@0: /*
aoqi@0:  * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.  Oracle designates this
aoqi@0:  * particular file as subject to the "Classpath" exception as provided
aoqi@0:  * by Oracle in the LICENSE file that accompanied this code.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: package com.sun.tools.jdeps;
aoqi@0: 
aoqi@0: import java.io.IOException;
aoqi@0: import java.nio.file.FileVisitResult;
aoqi@0: import java.nio.file.Files;
aoqi@0: import java.nio.file.Path;
aoqi@0: import java.nio.file.Paths;
aoqi@0: import java.nio.file.SimpleFileVisitor;
aoqi@0: import java.nio.file.attribute.BasicFileAttributes;
aoqi@0: import java.util.*;
aoqi@0: 
aoqi@0: /**
aoqi@0:  * ClassPath for Java SE and JDK
aoqi@0:  */
aoqi@0: class PlatformClassPath {
aoqi@0:     private final static List<Archive> javaHomeArchives = init();
aoqi@0: 
aoqi@0:     static List<Archive> getArchives() {
aoqi@0:         return javaHomeArchives;
aoqi@0:     }
aoqi@0: 
aoqi@0:     private static List<Archive> init() {
aoqi@0:         List<Archive> result = new ArrayList<>();
aoqi@0:         Path home = Paths.get(System.getProperty("java.home"));
aoqi@0:         try {
aoqi@0:             if (home.endsWith("jre")) {
aoqi@0:                 // jar files in <javahome>/jre/lib
aoqi@0:                 result.addAll(addJarFiles(home.resolve("lib")));
aoqi@0:             } else if (Files.exists(home.resolve("lib"))) {
aoqi@0:                 // either a JRE or a jdk build image
aoqi@0:                 Path classes = home.resolve("classes");
aoqi@0:                 if (Files.isDirectory(classes)) {
aoqi@0:                     // jdk build outputdir
aoqi@0:                     result.add(new JDKArchive(classes, ClassFileReader.newInstance(classes)));
aoqi@0:                 }
aoqi@0:                 // add other JAR files
aoqi@0:                 result.addAll(addJarFiles(home.resolve("lib")));
aoqi@0:             } else {
aoqi@0:                 throw new RuntimeException("\"" + home + "\" not a JDK home");
aoqi@0:             }
aoqi@0:             return result;
aoqi@0:         } catch (IOException e) {
aoqi@0:             throw new Error(e);
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     private static List<Archive> addJarFiles(final Path root) throws IOException {
aoqi@0:         final List<Archive> result = new ArrayList<>();
aoqi@0:         final Path ext = root.resolve("ext");
aoqi@0:         Files.walkFileTree(root, new SimpleFileVisitor<Path>() {
aoqi@0:             @Override
aoqi@0:             public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs)
aoqi@0:                 throws IOException
aoqi@0:             {
aoqi@0:                 if (dir.equals(root) || dir.equals(ext)) {
aoqi@0:                     return FileVisitResult.CONTINUE;
aoqi@0:                 } else {
aoqi@0:                     // skip other cobundled JAR files
aoqi@0:                     return FileVisitResult.SKIP_SUBTREE;
aoqi@0:                 }
aoqi@0:             }
aoqi@0:             @Override
aoqi@0:             public FileVisitResult visitFile(Path p, BasicFileAttributes attrs)
aoqi@0:                 throws IOException
aoqi@0:             {
aoqi@0:                 String fn = p.getFileName().toString();
aoqi@0:                 if (fn.endsWith(".jar")) {
aoqi@0:                     // JDK may cobundle with JavaFX that doesn't belong to any profile
aoqi@0:                     // Treat jfxrt.jar as regular Archive
aoqi@0:                     result.add(fn.equals("jfxrt.jar")
aoqi@0:                         ? new Archive(p, ClassFileReader.newInstance(p))
aoqi@0:                         : new JDKArchive(p, ClassFileReader.newInstance(p)));
aoqi@0:                 }
aoqi@0:                 return FileVisitResult.CONTINUE;
aoqi@0:             }
aoqi@0:         });
aoqi@0:         return result;
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * A JDK archive is part of the JDK containing the Java SE API
aoqi@0:      * or implementation classes (i.e. JDK internal API)
aoqi@0:      */
aoqi@0:     static class JDKArchive extends Archive {
aoqi@0:         JDKArchive(Path p, ClassFileReader reader) {
aoqi@0:             super(p, reader);
aoqi@0:         }
aoqi@0:     }
aoqi@0: }