233 lines
9.3 KiB
Java
233 lines
9.3 KiB
Java
/*
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* Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package com.sun.tools.jdeps;
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import com.sun.tools.classfile.Annotation;
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import com.sun.tools.classfile.Annotation.*;
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import com.sun.tools.classfile.Attribute;
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import com.sun.tools.classfile.ClassFile;
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import com.sun.tools.classfile.ConstantPool.*;
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import com.sun.tools.classfile.ConstantPoolException;
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import com.sun.tools.classfile.RuntimeAnnotations_attribute;
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import java.io.FileReader;
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import java.io.IOException;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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import java.util.*;
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import java.util.jar.JarFile;
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/**
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* Build the profile information from ct.sym if exists.
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*/
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enum Profile {
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COMPACT1("compact1", 1),
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COMPACT2("compact2", 2),
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COMPACT3("compact3", 3),
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FULL_JRE("Full JRE", 4);
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final String name;
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final int profile;
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final Set<String> packages;
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final Set<String> proprietaryPkgs;
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Profile(String name, int profile) {
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this.name = name;
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this.profile = profile;
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this.packages = new HashSet<>();
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this.proprietaryPkgs = new HashSet<>();
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}
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public String profileName() {
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return name;
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}
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public static int getProfileCount() {
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return PackageToProfile.map.values().size();
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}
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/**
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* Returns the Profile for the given package name. It returns an empty
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* string if the given package is not in any profile.
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*/
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public static Profile getProfile(String pn) {
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Profile profile = PackageToProfile.map.get(pn);
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return (profile != null && profile.packages.contains(pn))
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? profile : null;
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}
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static class PackageToProfile {
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static String[] JAVAX_CRYPTO_PKGS = new String[] {
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"javax.crypto",
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"javax.crypto.interfaces",
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"javax.crypto.spec"
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};
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static Map<String, Profile> map = initProfiles();
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private static Map<String, Profile> initProfiles() {
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try {
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String profilesProps = System.getProperty("jdeps.profiles");
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if (profilesProps != null) {
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// for testing for JDK development build where ct.sym doesn't exist
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initProfilesFromProperties(profilesProps);
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} else {
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Path home = Paths.get(System.getProperty("java.home"));
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if (home.endsWith("jre")) {
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home = home.getParent();
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}
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Path ctsym = home.resolve("lib").resolve("ct.sym");
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if (Files.exists(ctsym)) {
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// parse ct.sym and load information about profiles
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try (JarFile jf = new JarFile(ctsym.toFile())) {
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ClassFileReader reader = ClassFileReader.newInstance(ctsym, jf);
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for (ClassFile cf : reader.getClassFiles()) {
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findProfile(cf);
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}
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}
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// special case for javax.crypto.* classes that are not
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// included in ct.sym since they are in jce.jar
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Collections.addAll(Profile.COMPACT1.packages, JAVAX_CRYPTO_PKGS);
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}
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}
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} catch (IOException | ConstantPoolException e) {
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throw new Error(e);
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}
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HashMap<String,Profile> map = new HashMap<>();
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for (Profile profile : Profile.values()) {
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for (String pn : profile.packages) {
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if (!map.containsKey(pn)) {
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// split packages in the JRE: use the smaller compact
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map.put(pn, profile);
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}
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}
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for (String pn : profile.proprietaryPkgs) {
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if (!map.containsKey(pn)) {
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map.put(pn, profile);
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}
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}
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}
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return map;
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}
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private static final String PROFILE_ANNOTATION = "Ljdk/Profile+Annotation;";
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private static final String PROPRIETARY_ANNOTATION = "Lsun/Proprietary+Annotation;";
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private static Profile findProfile(ClassFile cf) throws ConstantPoolException {
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RuntimeAnnotations_attribute attr = (RuntimeAnnotations_attribute)
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cf.attributes.get(Attribute.RuntimeInvisibleAnnotations);
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int index = 0;
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boolean proprietary = false;
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if (attr != null) {
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for (int i = 0; i < attr.annotations.length; i++) {
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Annotation ann = attr.annotations[i];
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String annType = cf.constant_pool.getUTF8Value(ann.type_index);
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if (PROFILE_ANNOTATION.equals(annType)) {
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for (int j = 0; j < ann.num_element_value_pairs; j++) {
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Annotation.element_value_pair pair = ann.element_value_pairs[j];
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Primitive_element_value ev = (Primitive_element_value) pair.value;
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CONSTANT_Integer_info info = (CONSTANT_Integer_info)
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cf.constant_pool.get(ev.const_value_index);
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index = info.value;
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break;
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}
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} else if (PROPRIETARY_ANNOTATION.equals(annType)) {
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proprietary = true;
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}
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}
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}
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Profile p = null; // default
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switch (index) {
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case 1:
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p = Profile.COMPACT1; break;
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case 2:
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p = Profile.COMPACT2; break;
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case 3:
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p = Profile.COMPACT3; break;
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case 4:
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p = Profile.FULL_JRE; break;
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default:
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// skip classes with profile=0
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// Inner classes are not annotated with the profile annotation
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return null;
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}
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String name = cf.getName();
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int i = name.lastIndexOf('/');
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name = (i > 0) ? name.substring(0, i).replace('/', '.') : "";
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if (proprietary) {
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p.proprietaryPkgs.add(name);
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} else {
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p.packages.add(name);
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}
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return p;
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}
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private static void initProfilesFromProperties(String path) throws IOException {
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Properties props = new Properties();
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try (FileReader reader = new FileReader(path)) {
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props.load(reader);
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}
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for (Profile prof : Profile.values()) {
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int i = prof.profile;
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String key = props.getProperty("profile." + i + ".name");
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if (key == null) {
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throw new RuntimeException(key + " missing in " + path);
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}
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String n = props.getProperty("profile." + i + ".packages");
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String[] pkgs = n.split("\\s+");
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for (String p : pkgs) {
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if (p.isEmpty()) continue;
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prof.packages.add(p);
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}
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}
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}
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}
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// for debugging
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public static void main(String[] args) {
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if (args.length == 0) {
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if (Profile.getProfileCount() == 0) {
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System.err.println("No profile is present in this JDK");
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}
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for (Profile p : Profile.values()) {
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String profileName = p.name;
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SortedSet<String> set = new TreeSet<>(p.packages);
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for (String s : set) {
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// filter out the inner classes that are not annotated with
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// the profile annotation
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if (PackageToProfile.map.get(s) == p) {
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System.out.format("%2d: %-10s %s%n", p.profile, profileName, s);
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profileName = "";
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} else {
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System.err.format("Split package: %s in %s and %s %n",
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s, PackageToProfile.map.get(s).name, p.name);
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}
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}
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}
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}
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for (String pn : args) {
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System.out.format("%s in %s%n", pn, getProfile(pn));
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}
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}
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}
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