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