1 /* |
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2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 package jdk.internal.jrtfs; |
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26 |
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27 import java.nio.file.attribute.BasicFileAttributes; |
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28 import java.util.Formatter; |
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29 |
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30 /** |
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31 * Base class for file attributes supported by jrt file systems. |
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32 * |
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33 * @implNote This class needs to maintain JDK 8 source compatibility. |
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34 * |
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35 * It is used internally in the JDK to implement jimage/jrtfs access, |
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36 * but also compiled and delivered as part of the jrtfs.jar to support access |
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37 * to the jimage file provided by the shipped JDK by tools running on JDK 8. |
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38 */ |
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39 public abstract class AbstractJrtFileAttributes implements BasicFileAttributes { |
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40 |
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41 // jrt fs specific attributes |
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42 /** |
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43 * Compressed resource file. If not available or not applicable, 0L is |
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44 * returned. |
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45 * |
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46 * @return the compressed resource size for compressed resources. |
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47 */ |
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48 public abstract long compressedSize(); |
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49 |
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50 /** |
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51 * "file" extension of a file resource. |
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52 * |
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53 * @return extension string for the file resource |
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54 */ |
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55 public abstract String extension(); |
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56 |
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57 @Override |
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58 public final String toString() { |
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59 StringBuilder sb = new StringBuilder(1024); |
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60 try (Formatter fm = new Formatter(sb)) { |
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61 if (creationTime() != null) { |
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62 fm.format(" creationTime : %tc%n", creationTime().toMillis()); |
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63 } else { |
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64 fm.format(" creationTime : null%n"); |
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65 } |
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66 |
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67 if (lastAccessTime() != null) { |
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68 fm.format(" lastAccessTime : %tc%n", lastAccessTime().toMillis()); |
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69 } else { |
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70 fm.format(" lastAccessTime : null%n"); |
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71 } |
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72 fm.format(" lastModifiedTime: %tc%n", lastModifiedTime().toMillis()); |
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73 fm.format(" isRegularFile : %b%n", isRegularFile()); |
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74 fm.format(" isDirectory : %b%n", isDirectory()); |
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75 fm.format(" isSymbolicLink : %b%n", isSymbolicLink()); |
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76 fm.format(" isOther : %b%n", isOther()); |
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77 fm.format(" fileKey : %s%n", fileKey()); |
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78 fm.format(" size : %d%n", size()); |
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79 fm.format(" compressedSize : %d%n", compressedSize()); |
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80 fm.format(" extension : %s%n", extension()); |
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81 } |
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82 return sb.toString(); |
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83 } |
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84 } |
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