1 /* 2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 package jdk.tools.jlink.internal.plugins.asm; 26 27 import java.util.Objects; 28 import jdk.tools.jlink.plugin.Plugin; 29 import jdk.tools.jlink.plugin.ModuleEntry; 30 import jdk.tools.jlink.plugin.ModulePool; 31 import jdk.tools.jlink.internal.ModulePoolImpl; 32 33 /** 34 * Extend this class to develop your own plugin in order to transform jimage 35 * resources. 36 * 37 */ 38 public abstract class AsmPlugin implements Plugin { 39 40 public AsmPlugin() { 41 } 42 43 @Override 44 public void visit(ModulePool allContent, ModulePool outResources) { 45 Objects.requireNonNull(allContent); 46 Objects.requireNonNull(outResources); 47 ModulePoolImpl resources = new ModulePoolImpl(allContent.getByteOrder()); 48 allContent.entries().forEach(md -> { 49 if(md.getType().equals(ModuleEntry.Type.CLASS_OR_RESOURCE)) { 50 resources.add(md); 51 } else { 52 outResources.add(md); 53 } 54 }); 55 AsmPools pools = new AsmPools(resources); 56 visit(pools); 57 pools.fillOutputResources(outResources); 58 } 59 60 /** 61 * This is the method to implement in order to 62 * apply Asm transformation to jimage contained classes. 63 * @param pools The pool of Asm classes and other resource files. 64 * @param strings To add a string to the jimage strings table. 65 * @throws jdk.tools.jlink.plugin.PluginException 66 */ 67 public abstract void visit(AsmPools pools); 68 }