com.sh.common.zip

类 AsiExtraField

java.lang.Object

com.sh.common.zip.AsiExtraField

所有已实现的接口:

UnixStat, ZipExtraField, java.lang.Cloneable

public class AsiExtraField
extends java.lang.Object
implements ZipExtraField, UnixStat, java.lang.Cloneable

Adds Unix file permission and UID/GID fields as well as symbolic link handling.

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
 

Short is two bytes and Long is four bytes in big endian byte and word order, device numbers are currently not supported.

字段概要

从接口继承的字段 com.sh.common.zip.UnixStat

DEFAULT_DIR_PERM, DEFAULT_FILE_PERM, DEFAULT_LINK_PERM, DIR_FLAG, FILE_FLAG, LINK_FLAG, PERM_MASK

构造器概要

构造器

构造器和说明
AsiExtraField() Constructor for AsiExtraField.

方法概要

限定符和类型	方法和说明
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.
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.

从类继承的方法 java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

AsiExtraField

public AsiExtraField()

Constructor for AsiExtraField.

方法详细资料

getHeaderId

public ZipShort getHeaderId()

The Header-ID.

指定者:

getHeaderId 在接口中 ZipExtraField

返回:

the value for the header id for this extrafield

从以下版本开始:

1.1

getLocalFileDataLength

public ZipShort getLocalFileDataLength()

Length of the extra field in the local file data - without Header-ID or length specifier.

指定者:

getLocalFileDataLength 在接口中 ZipExtraField

返回:

a ZipShort for the length of the data of this extra field

从以下版本开始:

1.1

getCentralDirectoryLength

public ZipShort getCentralDirectoryLength()

Delegate to local file data.

指定者:

getCentralDirectoryLength 在接口中 ZipExtraField

返回:

the centralDirectory length

从以下版本开始:

1.1

getLocalFileDataData

public byte[] getLocalFileDataData()

The actual data to put into local file data - without Header-ID or length specifier.

指定者:

getLocalFileDataData 在接口中 ZipExtraField

返回:

get the data

从以下版本开始:

1.1

getCentralDirectoryData

public byte[] getCentralDirectoryData()

Delegate to local file data.

指定者:

getCentralDirectoryData 在接口中 ZipExtraField

返回:

the local file data

从以下版本开始:

1.1

setUserId

public void setUserId(int uid)

Set the user id.

参数:

uid - the user id

从以下版本开始:

1.1

getUserId

public int getUserId()

Get the user id.

返回:

the user id

从以下版本开始:

1.1

setGroupId

public void setGroupId(int gid)

Set the group id.

参数:

gid - the group id

从以下版本开始:

1.1

getGroupId

public int getGroupId()

Get the group id.

返回:

the group id

从以下版本开始:

1.1

setLinkedFile

public void setLinkedFile(java.lang.String name)

Indicate that this entry is a symbolic link to the given filename.

参数:

name - Name of the file this entry links to, empty String if it is not a symbolic link.

从以下版本开始:

1.1

getLinkedFile

public java.lang.String getLinkedFile()

Name of linked file

返回:

name of the file this entry links to if it is a symbolic link, the empty string otherwise.

从以下版本开始:

1.1

isLink

public boolean isLink()

Is this entry a symbolic link?

返回:

true if this is a symbolic link

从以下版本开始:

1.1

setMode

public void setMode(int mode)

File mode of this file.

参数:

mode - the file mode

从以下版本开始:

1.1

getMode

public int getMode()

File mode of this file.

返回:

the file mode

从以下版本开始:

1.1

setDirectory

public void setDirectory(boolean dirFlag)

Indicate whether this entry is a directory.

参数:

dirFlag - if true, this entry is a directory

从以下版本开始:

1.1

isDirectory

public boolean isDirectory()

Is this entry a directory?

返回:

true if this entry is a directory

从以下版本开始:

1.1

parseFromLocalFileData

public void parseFromLocalFileData(byte[] data,
                                   int offset,
                                   int length)
                            throws java.util.zip.ZipException

Populate data from this array as if it was in local file data.

指定者:

parseFromLocalFileData 在接口中 ZipExtraField

参数:

data - an array of bytes

offset - the start offset

length - the number of bytes in the array from offset

抛出:

java.util.zip.ZipException - on error

从以下版本开始:

1.1

clone

public java.lang.Object clone()

覆盖:

clone 在类中 java.lang.Object