| /* |
| * Copyright (c) 2015, 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 previsitor |
| * @author Andrei Eremeev |
| * @modules jdk.jlink/jdk.tools.jlink |
| * jdk.jlink/jdk.tools.jlink.internal |
| * jdk.jlink/jdk.tools.jlink.plugin |
| * @run main/othervm PrevisitorTest |
| */ |
| import java.nio.ByteOrder; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Optional; |
| import java.util.stream.Collectors; |
| |
| import jdk.tools.jlink.internal.ImagePluginConfiguration; |
| import jdk.tools.jlink.internal.Jlink; |
| import jdk.tools.jlink.internal.PluginRepository; |
| import jdk.tools.jlink.internal.ImagePluginStack; |
| import jdk.tools.jlink.internal.ResourcePoolManager; |
| import jdk.tools.jlink.internal.ResourcePoolManager.ResourcePoolImpl; |
| import jdk.tools.jlink.internal.ResourcePrevisitor; |
| import jdk.tools.jlink.internal.StringTable; |
| import jdk.tools.jlink.plugin.Plugin; |
| import jdk.tools.jlink.plugin.ResourcePool; |
| import jdk.tools.jlink.plugin.ResourcePoolBuilder; |
| import jdk.tools.jlink.plugin.ResourcePoolEntry; |
| |
| public class PrevisitorTest { |
| |
| public static void main(String[] args) throws Exception { |
| new PrevisitorTest().test(); |
| } |
| |
| private static Plugin createPlugin(String name) { |
| return Jlink.newPlugin(name, Collections.emptyMap(), null); |
| } |
| |
| public void test() throws Exception { |
| CustomPlugin plugin = new CustomPlugin(); |
| PluginRepository.registerPlugin(plugin); |
| List<Plugin> plugins = new ArrayList<>(); |
| plugins.add(createPlugin(CustomPlugin.NAME)); |
| ImagePluginStack stack = ImagePluginConfiguration.parseConfiguration(new Jlink.PluginsConfiguration(plugins, |
| null, null)); |
| ResourcePoolManager inResources = new ResourcePoolManager(ByteOrder.nativeOrder(), new CustomStringTable()); |
| inResources.add(ResourcePoolEntry.create("/aaa/bbb/res1.class", new byte[90])); |
| inResources.add(ResourcePoolEntry.create("/aaa/bbb/res2.class", new byte[90])); |
| inResources.add(ResourcePoolEntry.create("/aaa/bbb/res3.class", new byte[90])); |
| inResources.add(ResourcePoolEntry.create("/aaa/ddd/res1.class", new byte[90])); |
| inResources.add(ResourcePoolEntry.create("/aaa/res1.class", new byte[90])); |
| ResourcePool outResources = stack.visitResources(inResources); |
| Collection<String> input = inResources.entries() |
| .map(Object::toString) |
| .collect(Collectors.toList()); |
| Collection<String> output = outResources.entries() |
| .map(Object::toString) |
| .collect(Collectors.toList()); |
| if (!input.equals(output)) { |
| throw new AssertionError("Input and output resources differ: input: " |
| + input + ", output: " + output); |
| } |
| } |
| |
| private static class CustomStringTable implements StringTable { |
| |
| private final List<String> strings = new ArrayList<>(); |
| |
| @Override |
| public int addString(String str) { |
| strings.add(str); |
| return strings.size() - 1; |
| } |
| |
| @Override |
| public String getString(int id) { |
| return strings.get(id); |
| } |
| |
| public int size() { |
| return strings.size(); |
| } |
| } |
| |
| private static class CustomPlugin implements Plugin, ResourcePrevisitor { |
| |
| private static String NAME = "plugin"; |
| |
| private boolean isPrevisitCalled = false; |
| |
| @Override |
| public ResourcePool transform(ResourcePool inResources, ResourcePoolBuilder outResources) { |
| if (!isPrevisitCalled) { |
| throw new AssertionError("Previsit was not called"); |
| } |
| CustomStringTable table = (CustomStringTable)((ResourcePoolImpl)inResources).getStringTable(); |
| if (table.size() == 0) { |
| throw new AssertionError("Table is empty"); |
| } |
| Map<String, Integer> count = new HashMap<>(); |
| for (int i = 0; i < table.size(); ++i) { |
| String s = table.getString(i); |
| Optional<ResourcePoolEntry> e = inResources.findEntry(s); |
| if (e.isPresent()) { |
| throw new AssertionError(); |
| } |
| count.compute(s, (k, c) -> 1 + (c == null ? 0 : c)); |
| } |
| count.forEach((k, v) -> { |
| if (v != 1) { |
| throw new AssertionError("Expected one entry in the table, got: " + v + " for " + k); |
| } |
| }); |
| inResources.entries().forEach(r -> { |
| outResources.add(r); |
| }); |
| |
| return outResources.build(); |
| } |
| |
| @Override |
| public String getName() { |
| return NAME; |
| } |
| |
| @Override |
| public void previsit(ResourcePool resources, StringTable strings) { |
| isPrevisitCalled = true; |
| resources.entries().forEach(r -> { |
| String s = r.path(); |
| int lastIndexOf = s.lastIndexOf('/'); |
| if (lastIndexOf >= 0) { |
| strings.addString(s.substring(0, lastIndexOf)); |
| } |
| }); |
| } |
| } |
| } |