JDK14/Java14源码在线阅读

/*
 * Copyright (c) 2019, Red Hat, Inc.
 * 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.Map;

import jdk.tools.jlink.internal.PluginRepository;
import jdk.tools.jlink.internal.ResourcePoolManager;
import jdk.tools.jlink.internal.ResourcePoolManager.ResourcePoolImpl;
import jdk.tools.jlink.plugin.Plugin;
import jdk.tools.jlink.plugin.ResourcePool;
import jdk.tools.jlink.plugin.ResourcePoolBuilder;

/**
 * Combined debug stripping plugin: Java debug attributes and native debug
 * symbols.
 *
 */
public final class DefaultStripDebugPlugin implements Plugin {

    public static final String NAME = "strip-debug";
    private static final String STRIP_NATIVE_DEBUG_PLUGIN = "strip-native-debug-symbols";
    private static final String EXCLUDE_DEBUGINFO = "exclude-debuginfo-files";

    private final Plugin javaStripPlugin;
    private final NativePluginFactory stripNativePluginFactory;

    public DefaultStripDebugPlugin() {
        this(new StripJavaDebugAttributesPlugin(),
             new DefaultNativePluginFactory());
    }

    public DefaultStripDebugPlugin(Plugin javaStripPlugin,
                                   NativePluginFactory nativeStripPluginFact) {
        this.javaStripPlugin = javaStripPlugin;
        this.stripNativePluginFactory = nativeStripPluginFact;
    }

    @Override
    public String getName() {
        return NAME;
    }

    @Override
    public String getDescription() {
        return PluginsResourceBundle.getDescription(NAME);
    }

    @Override
    public ResourcePool transform(ResourcePool in, ResourcePoolBuilder out) {
        Plugin stripNativePlugin = stripNativePluginFactory.create();
        if (stripNativePlugin != null) {
            Map<String, String> stripNativeConfig = Map.of(
                                     STRIP_NATIVE_DEBUG_PLUGIN, EXCLUDE_DEBUGINFO);
            stripNativePlugin.configure(stripNativeConfig);
            ResourcePoolManager outRes =
                                 new ResourcePoolManager(in.byteOrder(),
                                                        ((ResourcePoolImpl)in).getStringTable());
            ResourcePool strippedJava = javaStripPlugin.transform(in,
                                                                  outRes.resourcePoolBuilder());
            return stripNativePlugin.transform(strippedJava, out);
        } else {
            return javaStripPlugin.transform(in, out);

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