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/*
* 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);
}
}
});
}
}
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