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 * <p>This method returns the raw name as it is stored inside of the archive.</p> 048 * 049 * @return This entry's name. 050 */ 051 @Override 052 public String getName() { 053 if ((localFileHeader.arjFlags & LocalFileHeader.Flags.PATHSYM) != 0) { 054 return localFileHeader.name.replaceAll("/", 055 Matcher.quoteReplacement(File.separator)); 056 } 057 return localFileHeader.name; 058 } 059 060 /** 061 * Get this entry's file size. 062 * 063 * @return This entry's file size. 064 */ 065 @Override 066 public long getSize() { 067 return localFileHeader.originalSize; 068 } 069 070 /** True if the entry refers to a directory. 071 * 072 * @return True if the entry refers to a directory 073 */ 074 @Override 075 public boolean isDirectory() { 076 return localFileHeader.fileType == LocalFileHeader.FileTypes.DIRECTORY; 077 } 078 079 /** 080 * The last modified date of the entry. 081 * 082 * <p>Note the interpretation of time is different depending on 083 * the HostOS that has created the archive. While an OS that is 084 * {@link #isHostOsUnix considered to be Unix} stores time in a 085 * timezone independent manner, other platforms only use the local 086 * time. I.e. if an archive has been created at midnight UTC on a 087 * machine in timezone UTC this method will return midnight 088 * regardless of timezone if the archive has been created on a 089 * non-Unix system and a time taking the current timezone into 090 * account if the archive has beeen created on Unix.</p> 091 * 092 * @return the last modified date 093 */ 094 @Override 095 public Date getLastModifiedDate() { 096 final long ts = isHostOsUnix() ? localFileHeader.dateTimeModified * 1000L 097 : ZipUtil.dosToJavaTime(0xFFFFFFFFL & localFileHeader.dateTimeModified); 098 return new Date(ts); 099 } 100 101 /** 102 * File mode of this entry. 103 * 104 * <p>The format depends on the host os that created the entry.</p> 105 * 106 * @return the file mode 107 */ 108 public int getMode() { 109 return localFileHeader.fileAccessMode; 110 } 111 112 /** 113 * File mode of this entry as Unix stat value. 114 * 115 * <p>Will only be non-zero of the host os was UNIX. 116 * 117 * @return the Unix mode 118 */ 119 public int getUnixMode() { 120 return isHostOsUnix() ? getMode() : 0; 121 } 122 123 /** 124 * The operating system the archive has been created on. 125 * @see HostOs 126 * @return the host OS code 127 */ 128 public int getHostOs() { 129 return localFileHeader.hostOS; 130 } 131 132 /** 133 * Is the operating system the archive has been created on one 134 * that is considered a UNIX OS by arj? 135 * @return whether the operating system the archive has been 136 * created on is considered a UNIX OS by arj 137 */ 138 public boolean isHostOsUnix() { 139 return getHostOs() == HostOs.UNIX || getHostOs() == HostOs.NEXT; 140 } 141 142 int getMethod() { 143 return localFileHeader.method; 144 } 145 146 /** 147 * The known values for HostOs. 148 */ 149 public static class HostOs { 150 public static final int DOS = 0; 151 public static final int PRIMOS = 1; 152 public static final int UNIX = 2; 153 public static final int AMIGA = 3; 154 public static final int MAC_OS = 4; 155 public static final int OS_2 = 5; 156 public static final int APPLE_GS = 6; 157 public static final int ATARI_ST = 7; 158 public static final int NEXT = 8; 159 public static final int VAX_VMS = 9; 160 public static final int WIN95 = 10; 161 public static final int WIN32 = 11; 162 } 163 164}