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src/share/classes/com/sun/tools/jdeps/PlatformClassPath.java@959103a6100f (annotated)

src/share/classes/com/sun/tools/jdeps/PlatformClassPath.java

Wed, 27 Apr 2016 01:34:52 +0800

author

aoqi

date

Wed, 27 Apr 2016 01:34:52 +0800

changeset 0

959103a6100f

child 2525

2eb010b6cb22

permissions

-rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/langtools/
changeset: 2573:53ca196be1ae
tag: jdk8u25-b17

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation. Oracle designates this
aoqi@0	8	* particular file as subject to the "Classpath" exception as provided
aoqi@0	9	* by Oracle in the LICENSE file that accompanied this code.
aoqi@0	10	*
aoqi@0	11	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	12	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	13	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	14	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	15	* accompanied this code).
aoqi@0	16	*
aoqi@0	17	* You should have received a copy of the GNU General Public License version
aoqi@0	18	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	19	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	20	*
aoqi@0	21	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	22	* or visit www.oracle.com if you need additional information or have any
aoqi@0	23	* questions.
aoqi@0	24	*/
aoqi@0	25	package com.sun.tools.jdeps;
aoqi@0	26
aoqi@0	27	import java.io.IOException;
aoqi@0	28	import java.nio.file.FileVisitResult;
aoqi@0	29	import java.nio.file.Files;
aoqi@0	30	import java.nio.file.Path;
aoqi@0	31	import java.nio.file.Paths;
aoqi@0	32	import java.nio.file.SimpleFileVisitor;
aoqi@0	33	import java.nio.file.attribute.BasicFileAttributes;
aoqi@0	34	import java.util.*;
aoqi@0	35
aoqi@0	36	/**
aoqi@0	37	* ClassPath for Java SE and JDK
aoqi@0	38	*/
aoqi@0	39	class PlatformClassPath {
aoqi@0	40	private final static List<Archive> javaHomeArchives = init();
aoqi@0	41
aoqi@0	42	static List<Archive> getArchives() {
aoqi@0	43	return javaHomeArchives;
aoqi@0	44	}
aoqi@0	45
aoqi@0	46	private static List<Archive> init() {
aoqi@0	47	List<Archive> result = new ArrayList<>();
aoqi@0	48	Path home = Paths.get(System.getProperty("java.home"));
aoqi@0	49	try {
aoqi@0	50	if (home.endsWith("jre")) {
aoqi@0	51	// jar files in <javahome>/jre/lib
aoqi@0	52	result.addAll(addJarFiles(home.resolve("lib")));
aoqi@0	53	} else if (Files.exists(home.resolve("lib"))) {
aoqi@0	54	// either a JRE or a jdk build image
aoqi@0	55	Path classes = home.resolve("classes");
aoqi@0	56	if (Files.isDirectory(classes)) {
aoqi@0	57	// jdk build outputdir
aoqi@0	58	result.add(new JDKArchive(classes, ClassFileReader.newInstance(classes)));
aoqi@0	59	}
aoqi@0	60	// add other JAR files
aoqi@0	61	result.addAll(addJarFiles(home.resolve("lib")));
aoqi@0	62	} else {
aoqi@0	63	throw new RuntimeException("\"" + home + "\" not a JDK home");
aoqi@0	64	}
aoqi@0	65	return result;
aoqi@0	66	} catch (IOException e) {
aoqi@0	67	throw new Error(e);
aoqi@0	68	}
aoqi@0	69	}
aoqi@0	70
aoqi@0	71	private static List<Archive> addJarFiles(final Path root) throws IOException {
aoqi@0	72	final List<Archive> result = new ArrayList<>();
aoqi@0	73	final Path ext = root.resolve("ext");
aoqi@0	74	Files.walkFileTree(root, new SimpleFileVisitor<Path>() {
aoqi@0	75	@Override
aoqi@0	76	public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs)
aoqi@0	77	throws IOException
aoqi@0	78	{
aoqi@0	79	if (dir.equals(root) || dir.equals(ext)) {
aoqi@0	80	return FileVisitResult.CONTINUE;
aoqi@0	81	} else {
aoqi@0	82	// skip other cobundled JAR files
aoqi@0	83	return FileVisitResult.SKIP_SUBTREE;
aoqi@0	84	}
aoqi@0	85	}
aoqi@0	86	@Override
aoqi@0	87	public FileVisitResult visitFile(Path p, BasicFileAttributes attrs)
aoqi@0	88	throws IOException
aoqi@0	89	{
aoqi@0	90	String fn = p.getFileName().toString();
aoqi@0	91	if (fn.endsWith(".jar")) {
aoqi@0	92	// JDK may cobundle with JavaFX that doesn't belong to any profile
aoqi@0	93	// Treat jfxrt.jar as regular Archive
aoqi@0	94	result.add(fn.equals("jfxrt.jar")
aoqi@0	95	? new Archive(p, ClassFileReader.newInstance(p))
aoqi@0	96	: new JDKArchive(p, ClassFileReader.newInstance(p)));
aoqi@0	97	}
aoqi@0	98	return FileVisitResult.CONTINUE;
aoqi@0	99	}
aoqi@0	100	});
aoqi@0	101	return result;
aoqi@0	102	}
aoqi@0	103
aoqi@0	104	/**
aoqi@0	105	* A JDK archive is part of the JDK containing the Java SE API
aoqi@0	106	* or implementation classes (i.e. JDK internal API)
aoqi@0	107	*/
aoqi@0	108	static class JDKArchive extends Archive {
aoqi@0	109	JDKArchive(Path p, ClassFileReader reader) {
aoqi@0	110	super(p, reader);
aoqi@0	111	}
aoqi@0	112	}
aoqi@0	113	}