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

Class UnrecognizedExtraField

java.lang.Object

org.apache.commons.compress.archivers.zip.UnrecognizedExtraField

All Implemented Interfaces:

ZipExtraField

public class UnrecognizedExtraField
extends Object
implements ZipExtraField

Simple placeholder for all those extra fields we don't want to deal with.

Assumes local file data and central directory entries are identical - unless told the opposite.

This class is not thread-safe

Field Summary

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

EXTRAFIELD_HEADER_SIZE

Constructor Summary

Constructors

Constructor	Description
UnrecognizedExtraField()

Method Summary

Modifier and Type	Method	Description
byte[]	getCentralDirectoryData()	Get the central data.
ZipShort	getCentralDirectoryLength()	Get the central data length.
ZipShort	getHeaderId()	Get the header id.
byte[]	getLocalFileDataData()	Get the local data.
ZipShort	getLocalFileDataLength()	Get the length of the local data.
void	parseFromCentralDirectoryData(byte[] data, int offset, int length)	Populate data from this array as if it was in central directory data.
void	parseFromLocalFileData(byte[] data, int offset, int length)	Populate data from this array as if it was in local file data.
void	setCentralDirectoryData(byte[] data)	Set the extra field data in central directory.
void	setHeaderId(ZipShort headerId)	Set the header id.
void	setLocalFileDataData(byte[] data)	Set the extra field data in the local file data - without Header-ID or length specifier.

Methods inherited from class java.lang.Object

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

Constructor Detail

UnrecognizedExtraField

public UnrecognizedExtraField()

Method Detail

setHeaderId

public void setHeaderId(ZipShort headerId)

Set the header id.

Parameters:

headerId - the header id to use

getHeaderId

public ZipShort getHeaderId()

Get the header id.

Specified by:

getHeaderId in interface ZipExtraField

Returns:

the header id

setLocalFileDataData

public void setLocalFileDataData(byte[] data)

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

Parameters:

data - the field data to use

getLocalFileDataLength

public ZipShort getLocalFileDataLength()

Get the length of the local data.

Specified by:

getLocalFileDataLength in interface ZipExtraField

Returns:

the length of the local data

getLocalFileDataData

public byte[] getLocalFileDataData()

Get the local data.

Specified by:

getLocalFileDataData in interface ZipExtraField

Returns:

the local data

setCentralDirectoryData

public void setCentralDirectoryData(byte[] data)

Set the extra field data in central directory.

Parameters:

data - the data to use

getCentralDirectoryLength

public ZipShort getCentralDirectoryLength()

Get the central data length. If there is no central data, get the local file data length.

Specified by:

getCentralDirectoryLength in interface ZipExtraField

Returns:

the central data length

getCentralDirectoryData

public byte[] getCentralDirectoryData()

Get the central data.

Specified by:

getCentralDirectoryData in interface ZipExtraField

Returns:

the central data if present, else return the local file data

parseFromLocalFileData

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

Description copied from interface: ZipExtraField

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

Specified by:

parseFromLocalFileData in interface ZipExtraField

Parameters:

data - the array of bytes.

offset - the source location in the data array.

length - the number of bytes to use in the data array.

See Also:

ZipExtraField.parseFromLocalFileData(byte[], int, int)

parseFromCentralDirectoryData

public void parseFromCentralDirectoryData(byte[] data,
                                          int offset,
                                          int length)

Description copied from interface: ZipExtraField

Populate data from this array as if it was in central directory data.

Specified by:

parseFromCentralDirectoryData in interface ZipExtraField

Parameters:

data - the array of bytes.

offset - the source location in the data array.

length - the number of bytes to use in the data array.

See Also:

ZipExtraField.parseFromCentralDirectoryData(byte[], int, int)