| /* |
| * 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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. |
| */ |
| package jdk.tools.jlink.internal.plugins; |
| |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import jdk.tools.jlink.internal.ModulePoolImpl; |
| import jdk.tools.jlink.plugin.ModulePool; |
| import jdk.tools.jlink.plugin.TransformerPlugin; |
| import jdk.tools.jlink.internal.ImagePluginStack; |
| import jdk.tools.jlink.internal.ResourcePrevisitor; |
| import jdk.tools.jlink.internal.StringTable; |
| |
| /** |
| * |
| * ZIP and String Sharing compression plugin |
| */ |
| public final class DefaultCompressPlugin implements TransformerPlugin, ResourcePrevisitor { |
| public static final String NAME = "compress"; |
| public static final String FILTER = "filter"; |
| public static final String LEVEL_0 = "0"; |
| public static final String LEVEL_1 = "1"; |
| public static final String LEVEL_2 = "2"; |
| |
| private StringSharingPlugin ss; |
| private ZipPlugin zip; |
| |
| @Override |
| public String getName() { |
| return NAME; |
| } |
| |
| @Override |
| public void visit(ModulePool in, ModulePool out) { |
| if (ss != null && zip != null) { |
| ModulePool output = new ImagePluginStack.OrderedResourcePool(in.getByteOrder(), |
| ((ModulePoolImpl) in).getStringTable()); |
| ss.visit(in, output); |
| zip.visit(output, out); |
| } else if (ss != null) { |
| ss.visit(in, out); |
| } else if (zip != null) { |
| zip.visit(in, out); |
| } |
| } |
| |
| @Override |
| public void previsit(ModulePool resources, StringTable strings) { |
| if (ss != null) { |
| ss.previsit(resources, strings); |
| } |
| } |
| |
| @Override |
| public Set<Category> getType() { |
| Set<Category> set = new HashSet<>(); |
| set.add(Category.COMPRESSOR); |
| return Collections.unmodifiableSet(set); |
| } |
| |
| @Override |
| public String getDescription() { |
| return PluginsResourceBundle.getDescription(NAME); |
| } |
| |
| @Override |
| public boolean hasArguments() { |
| return true; |
| } |
| |
| @Override |
| public String getArgumentsDescription() { |
| return PluginsResourceBundle.getArgument(NAME); |
| } |
| |
| @Override |
| public void configure(Map<String, String> config) { |
| ResourceFilter resFilter = ResourceFilter.includeFilter(config.get(FILTER)); |
| String level = config.get(NAME); |
| if (level != null) { |
| switch (level) { |
| case LEVEL_0: |
| ss = new StringSharingPlugin(resFilter); |
| break; |
| case LEVEL_1: |
| zip = new ZipPlugin(resFilter); |
| break; |
| case LEVEL_2: |
| ss = new StringSharingPlugin(resFilter); |
| zip = new ZipPlugin(resFilter); |
| break; |
| default: |
| throw new IllegalArgumentException("Invalid compression level " + level); |
| } |
| } else { |
| ss = new StringSharingPlugin(resFilter); |
| zip = new ZipPlugin(resFilter); |
| } |
| } |
| } |