Package org.apache.commons.compress.archivers.zip

Class JarMarker

java.lang.Object

org.apache.commons.compress.archivers.zip.JarMarker

All Implemented Interfaces:

ZipExtraField

public final class JarMarker
extends Object
implements ZipExtraField

If this extra field is added as the very first extra field of the archive, Solaris will consider it an executable jar file.

This class is immutable

Field Summary

Fields inherited from interface org.apache.commons.compress.archivers.zip.ZipExtraField

EXTRAFIELD_HEADER_SIZE

Constructor Summary

Constructors

Constructor	Description
JarMarker()	No-arg constructor

Method Summary

Modifier and Type	Method	Description
byte[]	getCentralDirectoryData()	The actual data to put central directory - without Header-ID or length specifier.
ZipShort	getCentralDirectoryLength()	Length of the extra field in the central directory - without Header-ID or length specifier.
ZipShort	getHeaderId()	The Header-ID.
static JarMarker	getInstance()	Since JarMarker is stateless we can always use the same instance.
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.
void	parseFromCentralDirectoryData(byte[] buffer, int offset, int length)	Doesn't do anything special since this class always uses the same data in central directory and local file data.
void	parseFromLocalFileData(byte[] data, int offset, int length)	Populate data from this array as if it was in local file data.

Methods inherited from class java.lang.Object

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

Constructor Details

JarMarker

public JarMarker()

No-arg constructor

Method Details

getInstance

public static JarMarker getInstance()

Since JarMarker is stateless we can always use the same instance.

Returns:

the DEFAULT jarmaker.

getCentralDirectoryData

public byte[] getCentralDirectoryData()

The actual data to put central directory - without Header-ID or length specifier.

Specified by:

getCentralDirectoryData in interface ZipExtraField

Returns:

the data

getCentralDirectoryLength

public ZipShort getCentralDirectoryLength()

Length of the extra field in the central directory - without Header-ID or length specifier.

Specified by:

getCentralDirectoryLength in interface ZipExtraField

Returns:

0

getHeaderId

public ZipShort getHeaderId()

The Header-ID.

Specified by:

getHeaderId in interface ZipExtraField

Returns:

the header id

getLocalFileDataData

public byte[] getLocalFileDataData()

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

Specified by:

getLocalFileDataData in interface ZipExtraField

Returns:

the data

getLocalFileDataLength

public ZipShort getLocalFileDataLength()

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

Specified by:

getLocalFileDataLength in interface ZipExtraField

Returns:

0

parseFromCentralDirectoryData

public void parseFromCentralDirectoryData(byte[] buffer,
 int offset,
 int length)
                                   throws ZipException

Doesn't do anything special since this class always uses the same data in central directory and local file data.

Specified by:

parseFromCentralDirectoryData in interface ZipExtraField

Parameters:

buffer - the buffer to read data from

offset - offset into buffer to read data

length - the length of data

Throws:

ZipException - on error

parseFromLocalFileData

public void parseFromLocalFileData(byte[] data,
 int offset,
 int length)
                            throws ZipException

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

Specified by:

parseFromLocalFileData in interface ZipExtraField

Parameters:

data - an array of bytes

offset - the start offset

length - the number of bytes in the array from offset

Throws:

ZipException - on error