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