1 /* 2 * Copyright (c) 2016, 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 26 package jdk.tools.jlink.internal; 27 28 import jdk.tools.jlink.plugin.ResourcePoolEntry; 29 30 import java.io.InputStream; 31 import java.util.Objects; 32 33 /** 34 * A symbolic link ResourcePoolEntry. It will be created in the image 35 * as a symbolic link to the target when the target platform supports 36 * symbolic links; otherwise, it will create a file containing the 37 * path to the target file. 38 */ 39 public class SymLinkResourcePoolEntry extends AbstractResourcePoolEntry { 40 private final ResourcePoolEntry target; 41 42 /** 43 * Create a new SymLinkResourcePoolEntry. 44 * 45 * @param module The module name. 46 * @param path The path for the resource content. 47 * @param type The data type. 48 * @param target Target entry in the image 49 */ 50 public SymLinkResourcePoolEntry(String module, 51 String path, 52 ResourcePoolEntry.Type type, 53 ResourcePoolEntry target) { 54 super(module, path, type); 55 this.target = Objects.requireNonNull(target); 56 } 57 58 @Override 59 public long contentLength() { 60 return target.contentLength(); 61 } 62 63 @Override 64 public InputStream content() { 65 return target.content(); 66 } 67 68 @Override 69 public ResourcePoolEntry linkedTarget() { 70 return target; 71 } 72 }