net.jsign.zip

Class CentralDirectoryFileHeader

java.lang.Object

net.jsign.zip.CentralDirectoryFileHeader

public class CentralDirectoryFileHeader
extends Object

Central Directory File Header:

 central file header signature   4 bytes  (0x02014b50)
 version made by                 2 bytes
 version needed to extract       2 bytes
 general purpose bit flag        2 bytes
 compression method              2 bytes
 last mod file time              2 bytes
 last mod file date              2 bytes
 crc-32                          4 bytes
 compressed size                 4 bytes
 uncompressed size               4 bytes
 file name length                2 bytes
 extra field length              2 bytes
 file comment length             2 bytes
 disk number start               2 bytes
 internal file attributes        2 bytes
 external file attributes        4 bytes
 relative offset of local header 4 bytes

 file name (variable size)
 extra field (variable size)
 file comment (variable size)
 

Since:

6.0

Field Summary

Fields

Modifier and Type	Field and Description
long	compressedSize
int	compressionMethod
int	crc32
int	diskNumberStart
int	externalFileAttributes
Map<Integer,net.jsign.zip.ExtraField>	extraFields
byte[]	fileComment
byte[]	fileName
int	generalPurposeBitFlag
int	internalFileAttributes
int	lastModFileDate
int	lastModFileTime
long	localHeaderOffset
static int	SIGNATURE
long	uncompressedSize
int	versionMadeBy
int	versionNeededToExtract

Constructor Summary

Constructors

Constructor and Description
CentralDirectoryFileHeader()

Method Summary

Modifier and Type	Method and Description
long	getCompressedSize()
long	getLocalHeaderOffset()
long	getUncompressedSize()
void	read(ReadableByteChannel channel)
void	setLocalHeaderOffset(long offset)
ByteBuffer	toBuffer()
void	write(OutputStream out)
void	write(WritableByteChannel channel)

Methods inherited from class java.lang.Object

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

Field Detail

compressedSize

public long compressedSize

compressionMethod

public int compressionMethod

crc32

public int crc32

diskNumberStart

public int diskNumberStart

externalFileAttributes

public int externalFileAttributes

extraFields

public Map<Integer,net.jsign.zip.ExtraField> extraFields

fileComment

public byte[] fileComment

fileName

public byte[] fileName

generalPurposeBitFlag

public int generalPurposeBitFlag

internalFileAttributes

public int internalFileAttributes

lastModFileDate

public int lastModFileDate

lastModFileTime

public int lastModFileTime

localHeaderOffset

public long localHeaderOffset

SIGNATURE

public static final int SIGNATURE

See Also:

Constant Field Values

uncompressedSize

public long uncompressedSize

versionMadeBy

public int versionMadeBy

versionNeededToExtract

public int versionNeededToExtract

Constructor Detail

CentralDirectoryFileHeader

public CentralDirectoryFileHeader()

Method Detail

getCompressedSize

public long getCompressedSize()

getLocalHeaderOffset

public long getLocalHeaderOffset()

getUncompressedSize

public long getUncompressedSize()

read

public void read(ReadableByteChannel channel)
          throws IOException

Throws:

IOException

setLocalHeaderOffset

public void setLocalHeaderOffset(long offset)

toBuffer

public ByteBuffer toBuffer()

write

public void write(OutputStream out)
           throws IOException

Throws:

IOException

write

public void write(WritableByteChannel channel)
           throws IOException

Throws:

IOException