jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/jdeps/PlatformClassPath.java@1e39ae45d8ac (annotated)

src/share/classes/com/sun/tools/jdeps/PlatformClassPath.java@1e39ae45d8ac (annotated)

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

Thu, 17 Jul 2014 15:23:08 -0700

author: mchung
date: Thu, 17 Jul 2014 15:23:08 -0700
changeset 2538: 1e39ae45d8ac
parent 2139: defadd528513
child 2626: 9113c7c8d902
permissions: -rw-r--r--

8029548: (jdeps) use @jdk.Exported to determine supported vs JDK internal API
8031092: jdeps does not recognize --help option.
8048063: (jdeps) Add filtering capability
Reviewed-by: alanb, dfuchs

 /*
  * Copyright (c) 2012, 2014, 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 com.sun.tools.classfile.Annotation;
 import com.sun.tools.classfile.ClassFile;
 import com.sun.tools.classfile.ConstantPool;
 import com.sun.tools.classfile.ConstantPoolException;
 import com.sun.tools.classfile.RuntimeAnnotations_attribute;
 import com.sun.tools.classfile.Dependencies.ClassFileError;
 import java.io.IOException;
 import java.nio.file.FileVisitResult;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.nio.file.SimpleFileVisitor;
 import java.nio.file.attribute.BasicFileAttributes;
 import java.util.*;
 import static com.sun.tools.classfile.Attribute.*;
 /**
  * ClassPath for Java SE and JDK
  */
 class PlatformClassPath {
     private static final List<String> NON_PLATFORM_JARFILES =
         Arrays.asList("alt-rt.jar", "jfxrt.jar", "ant-javafx.jar", "javafx-mx.jar");
     private static final List<Archive> javaHomeArchives = init();
     static List<Archive> getArchives() {
         return javaHomeArchives;
     }
     private static List<Archive> init() {
         List<Archive> result = new ArrayList<>();
         Path home = Paths.get(System.getProperty("java.home"));
         try {
             if (home.endsWith("jre")) {
                 // jar files in <javahome>/jre/lib
                 result.addAll(addJarFiles(home.resolve("lib")));
                 if (home.getParent() != null) {
                     // add tools.jar and other JDK jar files
                     Path lib = home.getParent().resolve("lib");
                     if (Files.exists(lib)) {
                         result.addAll(addJarFiles(lib));
                     }
                 }
             } else if (Files.exists(home.resolve("lib"))) {
                 // either a JRE or a jdk build image
                 Path classes = home.resolve("classes");
                 if (Files.isDirectory(classes)) {
                     // jdk build outputdir
                     result.add(new JDKArchive(classes));
                 }
                 // add other JAR files
                 result.addAll(addJarFiles(home.resolve("lib")));
             } else {
                 throw new RuntimeException("\"" + home + "\" not a JDK home");
             }
             return result;
         } catch (IOException e) {
             throw new Error(e);
         }
     }
     private static List<Archive> addJarFiles(final Path root) throws IOException {
         final List<Archive> result = new ArrayList<>();
         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 p, BasicFileAttributes attrs)
                 throws IOException
             {
                 String fn = p.getFileName().toString();
                 if (fn.endsWith(".jar")) {
                     // JDK may cobundle with JavaFX that doesn't belong to any profile
                     // Treat jfxrt.jar as regular Archive
                     result.add(NON_PLATFORM_JARFILES.contains(fn)
                                    ? Archive.getInstance(p)
                                    : new JDKArchive(p));
                 }
                 return FileVisitResult.CONTINUE;
             }
         });
         return result;
     }
     /**
      * A JDK archive is part of the JDK containing the Java SE API
      * or implementation classes (i.e. JDK internal API)
      */
     static class JDKArchive extends Archive {
         private static List<String> PROFILE_JARS = Arrays.asList("rt.jar", "jce.jar");
         public static boolean isProfileArchive(Archive archive) {
             if (archive instanceof JDKArchive) {
                 return PROFILE_JARS.contains(archive.getName());
             }
             return false;
         }
         private final Map<String,Boolean> exportedPackages = new HashMap<>();
         private final Map<String,Boolean> exportedTypes = new HashMap<>();
         JDKArchive(Path p) throws IOException {
             super(p, ClassFileReader.newInstance(p));
         }
         /**
          * Tests if a given fully-qualified name is an exported type.
          */
         public boolean isExported(String cn) {
             int i = cn.lastIndexOf('.');
             String pn = i > 0 ? cn.substring(0, i) : "";
             boolean isJdkExported = isExportedPackage(pn);
             if (exportedTypes.containsKey(cn)) {
                 return exportedTypes.get(cn);
             }
             return isJdkExported;
         }
         /**
          * Tests if a given package name is exported.
          */
         public boolean isExportedPackage(String pn) {
             if (Profile.getProfile(pn) != null) {
                 return true;
             }
             return exportedPackages.containsKey(pn) ? exportedPackages.get(pn) : false;
         }
         private static final String JDK_EXPORTED_ANNOTATION = "Ljdk/Exported;";
         private Boolean isJdkExported(ClassFile cf) throws ConstantPoolException {
             RuntimeAnnotations_attribute attr = (RuntimeAnnotations_attribute)
                     cf.attributes.get(RuntimeVisibleAnnotations);
             if (attr != null) {
                 for (int i = 0; i < attr.annotations.length; i++) {
                     Annotation ann = attr.annotations[i];
                     String annType = cf.constant_pool.getUTF8Value(ann.type_index);
                     if (JDK_EXPORTED_ANNOTATION.equals(annType)) {
                         boolean isJdkExported = true;
                         for (int j = 0; j < ann.num_element_value_pairs; j++) {
                             Annotation.element_value_pair pair = ann.element_value_pairs[j];
                             Annotation.Primitive_element_value ev = (Annotation.Primitive_element_value) pair.value;
                             ConstantPool.CONSTANT_Integer_info info = (ConstantPool.CONSTANT_Integer_info)
                                     cf.constant_pool.get(ev.const_value_index);
                             isJdkExported = info.value != 0;
                         }
                         return Boolean.valueOf(isJdkExported);
                     }
                 }
             }
             return null;
         }
         void processJdkExported(ClassFile cf) throws IOException {
             try {
                 String cn = cf.getName();
                 String pn = cn.substring(0, cn.lastIndexOf('/')).replace('/', '.');
                 Boolean b = isJdkExported(cf);
                 if (b != null) {
                     exportedTypes.put(cn.replace('/', '.'), b);
                 }
                 if (!exportedPackages.containsKey(pn)) {
                     // check if package-info.class has @jdk.Exported
                     Boolean isJdkExported = null;
                     ClassFile pcf = reader().getClassFile(cn.substring(0, cn.lastIndexOf('/')+1) + "package-info");
                     if (pcf != null) {
                         isJdkExported = isJdkExported(pcf);
                     }
                     if (isJdkExported != null) {
                         exportedPackages.put(pn, isJdkExported);
                     }
                 }
             } catch (ConstantPoolException e) {
                 throw new ClassFileError(e);
             }
         }
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

src/share/classes/com/sun/tools/jdeps/PlatformClassPath.java@1e39ae45d8ac (annotated)

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