001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 * 017 */ 018package org.apache.commons.compress.archivers.arj; 019 020import java.io.File; 021import java.util.Date; 022import java.util.regex.Matcher; 023 024import org.apache.commons.compress.archivers.ArchiveEntry; 025import org.apache.commons.compress.archivers.zip.ZipUtil; 026 027/** 028 * An entry in an ARJ archive. 029 * 030 * @NotThreadSafe 031 * @since 1.6 032 */ 033public class ArjArchiveEntry implements ArchiveEntry { 034 private final LocalFileHeader localFileHeader; 035 036 public ArjArchiveEntry() { 037 localFileHeader = new LocalFileHeader(); 038 } 039 040 ArjArchiveEntry(final LocalFileHeader localFileHeader) { 041 this.localFileHeader = localFileHeader; 042 } 043 044 /** 045 * Get this entry's name. 046 * 047 * @return This entry's name. 048 */ 049 public String getName() { 050 if ((localFileHeader.arjFlags & LocalFileHeader.Flags.PATHSYM) != 0) { 051 return localFileHeader.name.replaceAll("/", 052 Matcher.quoteReplacement(File.separator)); 053 } else { 054 return localFileHeader.name; 055 } 056 } 057 058 /** 059 * Get this entry's file size. 060 * 061 * @return This entry's file size. 062 */ 063 public long getSize() { 064 return localFileHeader.originalSize; 065 } 066 067 /** True if the entry refers to a directory */ 068 public boolean isDirectory() { 069 return localFileHeader.fileType == LocalFileHeader.FileTypes.DIRECTORY; 070 } 071 072 /** 073 * The last modified date of the entry. 074 * 075 * <p>Note the interpretation of time is different depending on 076 * the HostOS that has created the archive. While an OS that is 077 * {@link #isHostOsUnix considered to be Unix} stores time in a 078 * timezone independent manner, other platforms only use the local 079 * time. I.e. if an archive has been created at midnight UTC on a 080 * machine in timezone UTC this method will return midnight 081 * regardless of timezone if the archive has been created on a 082 * non-Unix system and a time taking the current timezone into 083 * account if the archive has beeen created on Unix.</p> 084 */ 085 public Date getLastModifiedDate() { 086 long ts = isHostOsUnix() ? localFileHeader.dateTimeModified * 1000l 087 : ZipUtil.dosToJavaTime(0xFFFFFFFFL & localFileHeader.dateTimeModified); 088 return new Date(ts); 089 } 090 091 /** 092 * File mode of this entry. 093 * 094 * <p>The format depends on the host os that created the entry.</p> 095 */ 096 public int getMode() { 097 return localFileHeader.fileAccessMode; 098 } 099 100 /** 101 * File mode of this entry as Unix stat value. 102 * 103 * <p>Will only be non-zero of the host os was UNIX. 104 */ 105 public int getUnixMode() { 106 return isHostOsUnix() ? getMode() : 0; 107 } 108 109 /** 110 * The operating system the archive has been created on. 111 * @see HostOs 112 */ 113 public int getHostOs() { 114 return localFileHeader.hostOS; 115 } 116 117 /** 118 * Is the operating system the archive has been created on one 119 * that is considered a UNIX OS by arj? 120 */ 121 public boolean isHostOsUnix() { 122 return getHostOs() == HostOs.UNIX || getHostOs() == HostOs.NEXT; 123 } 124 125 int getMethod() { 126 return localFileHeader.method; 127 } 128 129 /** 130 * The known values for HostOs. 131 */ 132 public static class HostOs { 133 public static final int DOS = 0; 134 public static final int PRIMOS = 1; 135 public static final int UNIX = 2; 136 public static final int AMIGA = 3; 137 public static final int MAC_OS = 4; 138 public static final int OS_2 = 5; 139 public static final int APPLE_GS = 6; 140 public static final int ATARI_ST = 7; 141 public static final int NEXT = 8; 142 public static final int VAX_VMS = 9; 143 public static final int WIN95 = 10; 144 public static final int WIN32 = 11; 145 } 146 147}