| /* |
| * Copyright (c) 2015, 2018, 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. |
| * |
| * 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. |
| */ |
| |
| /* |
| * @test |
| * @summary Test StringSharingPluginTest |
| * @author Jean-Francois Denise |
| * @library ../../lib |
| * @modules java.base/jdk.internal.jimage |
| * java.base/jdk.internal.jimage.decompressor |
| * jdk.jlink/jdk.tools.jlink.internal |
| * jdk.jlink/jdk.tools.jlink.internal.plugins |
| * jdk.jlink/jdk.tools.jlink.plugin |
| * jdk.jlink/jdk.tools.jmod |
| * jdk.jlink/jdk.tools.jimage |
| * jdk.jdeps/com.sun.tools.classfile |
| * jdk.compiler |
| * @run build tests.* |
| * @run main StringSharingPluginTest |
| */ |
| |
| import java.io.IOException; |
| import java.io.UncheckedIOException; |
| import java.nio.ByteBuffer; |
| import java.nio.ByteOrder; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.function.Consumer; |
| |
| import jdk.internal.jimage.decompressor.CompressedResourceHeader; |
| import jdk.internal.jimage.decompressor.StringSharingDecompressor; |
| import jdk.tools.jlink.internal.ResourcePoolManager; |
| import jdk.tools.jlink.internal.StringTable; |
| import jdk.tools.jlink.internal.plugins.StringSharingPlugin; |
| import jdk.tools.jlink.plugin.ResourcePoolEntry; |
| import jdk.tools.jlink.plugin.ResourcePool; |
| import jdk.tools.jlink.plugin.Plugin; |
| import tests.Helper; |
| import tests.JImageValidator; |
| |
| public class StringSharingPluginTest { |
| |
| private static int strID = 1; |
| |
| public static void main(String[] args) throws Exception { |
| Helper helper = Helper.newHelper(); |
| if (helper == null) { |
| // Skip test if the jmods directory is missing (e.g. exploded image) |
| System.err.println("Test not run, NO jmods directory"); |
| return; |
| } |
| |
| List<String> classes = Arrays.asList("toto.Main", "toto.com.foo.bar.X"); |
| Path compiledClasses = helper.generateModuleCompiledClasses( |
| helper.getJmodSrcDir(), helper.getJmodClassesDir(), "composite2", classes); |
| |
| Map<String, Integer> map = new HashMap<>(); |
| Map<Integer, String> reversedMap = new HashMap<>(); |
| |
| ResourcePoolManager resources = new ResourcePoolManager(ByteOrder.nativeOrder(), new StringTable() { |
| @Override |
| public int addString(String str) { |
| Integer id = map.get(str); |
| if (id == null) { |
| id = strID; |
| map.put(str, id); |
| reversedMap.put(id, str); |
| strID += 1; |
| } |
| return id; |
| } |
| |
| @Override |
| public String getString(int id) { |
| throw new UnsupportedOperationException("Not supported yet."); |
| } |
| }); |
| Consumer<Path> c = (p) -> { |
| // take only the .class resources. |
| if (Files.isRegularFile(p) && p.toString().endsWith(".class") |
| && !p.toString().endsWith("module-info.class")) { |
| try { |
| byte[] content = Files.readAllBytes(p); |
| String path = p.toString().replace('\\', '/'); |
| path = path.substring("/modules".length()); |
| if (path.charAt(0) != '/') { |
| path = "/" + path; |
| } |
| ResourcePoolEntry res = ResourcePoolEntry.create(path, content); |
| resources.add(res); |
| } catch (Exception ex) { |
| throw new RuntimeException(ex); |
| } |
| } |
| }; |
| try (java.util.stream.Stream<Path> stream = Files.walk(compiledClasses)) { |
| stream.forEach(c); |
| } |
| Plugin plugin = new StringSharingPlugin(); |
| ResourcePoolManager resultMgr = new ResourcePoolManager(resources.byteOrder(), resources.getStringTable()); |
| ResourcePool result = plugin.transform(resources.resourcePool(), resultMgr.resourcePoolBuilder()); |
| |
| if (result.isEmpty()) { |
| throw new AssertionError("No result"); |
| } |
| |
| result.entries().forEach(res -> { |
| if (res.path().endsWith(".class")) { |
| try { |
| byte[] uncompacted = StringSharingDecompressor.normalize(reversedMap::get, res.contentBytes(), |
| CompressedResourceHeader.getSize()); |
| JImageValidator.readClass(uncompacted); |
| } catch (IOException exp) { |
| throw new UncheckedIOException(exp); |
| } |
| } |
| }); |
| } |
| } |