public class AsiExtraField extends java.lang.Object implements ZipExtraField, UnixStat, java.lang.Cloneable
This class uses the ASi extra field in the format:
Value Size Description
----- ---- -----------
(Unix3) 0x756e Short tag for this extra block type
TSize Short total data size for this block
CRC Long CRC-32 of the remaining data
Mode Short file permissions
SizDev Long symlink'd size OR major/minor dev num
UID Short user ID
GID Short group ID
(var.) variable symbolic link filename
taken from appnote.iz (Info-ZIP note, 981119) found at ftp://ftp.uu.net/pub/archiving/zip/doc/
Short is two bytes and Long is four bytes in big endian byte and word order, device numbers are currently not supported.
Since the documentation this class is based upon doesn't mention the character encoding of the file name at all, it is assumed that it uses the current platform's default encoding.
DEFAULT_DIR_PERM, DEFAULT_FILE_PERM, DEFAULT_LINK_PERM, DIR_FLAG, FILE_FLAG, LINK_FLAG, PERM_MASK| Constructor and Description |
|---|
AsiExtraField()
Constructor for AsiExtraField.
|
| Modifier and Type | Method and Description |
|---|---|
java.lang.Object |
clone() |
byte[] |
getCentralDirectoryData()
Delegate to local file data.
|
ZipShort |
getCentralDirectoryLength()
Delegate to local file data.
|
int |
getGroupId()
Get the group id.
|
ZipShort |
getHeaderId()
The Header-ID.
|
java.lang.String |
getLinkedFile()
Name of linked file
|
byte[] |
getLocalFileDataData()
The actual data to put into local file data - without Header-ID
or length specifier.
|
ZipShort |
getLocalFileDataLength()
Length of the extra field in the local file data - without
Header-ID or length specifier.
|
int |
getMode()
File mode of this file.
|
protected int |
getMode(int mode)
Get the file mode for given permissions with the correct file type.
|
int |
getUserId()
Get the user id.
|
boolean |
isDirectory()
Is this entry a directory?
|
boolean |
isLink()
Is this entry a symbolic link?
|
void |
parseFromLocalFileData(byte[] data,
int offset,
int length)
Populate data from this array as if it was in local file data.
|
void |
setDirectory(boolean dirFlag)
Indicate whether this entry is a directory.
|
void |
setGroupId(int gid)
Set the group id.
|
void |
setLinkedFile(java.lang.String name)
Indicate that this entry is a symbolic link to the given filename.
|
void |
setMode(int mode)
File mode of this file.
|
void |
setUserId(int uid)
Set the user id.
|
public ZipShort getHeaderId()
getHeaderId in interface ZipExtraFieldpublic ZipShort getLocalFileDataLength()
getLocalFileDataLength in interface ZipExtraFieldZipShort for the length of the data of this extra fieldpublic ZipShort getCentralDirectoryLength()
getCentralDirectoryLength in interface ZipExtraFieldpublic byte[] getLocalFileDataData()
getLocalFileDataData in interface ZipExtraFieldpublic byte[] getCentralDirectoryData()
getCentralDirectoryData in interface ZipExtraFieldpublic void setUserId(int uid)
uid - the user idpublic int getUserId()
public void setGroupId(int gid)
gid - the group idpublic int getGroupId()
public void setLinkedFile(java.lang.String name)
name - Name of the file this entry links to, empty String
if it is not a symbolic link.public java.lang.String getLinkedFile()
public boolean isLink()
public void setMode(int mode)
mode - the file modepublic int getMode()
public void setDirectory(boolean dirFlag)
dirFlag - if true, this entry is a directorypublic boolean isDirectory()
public void parseFromLocalFileData(byte[] data,
int offset,
int length)
throws java.util.zip.ZipException
parseFromLocalFileData in interface ZipExtraFielddata - an array of bytesoffset - the start offsetlength - the number of bytes in the array from offsetjava.util.zip.ZipException - on errorprotected int getMode(int mode)
mode - the modepublic java.lang.Object clone()
clone in class java.lang.Object