org.zeroturnaround.zip.extra

Class ExtraFieldUtils

java.lang.Object

org.zeroturnaround.zip.extra.ExtraFieldUtils

public class ExtraFieldUtils
extends Object

This is a class that has been made significantly smaller (deleted a bunch of methods) and originally is from the Apache Ant Project (http://ant.apache.org), org.apache.tools.zip package. All license and other documentation is intact. ZipExtraField related methods

Constructor Summary

Constructors

Constructor and Description
ExtraFieldUtils()

Method Summary

Modifier and Type	Method and Description
static ZipExtraField	createExtraField(ZipShort headerId) Create an instance of the appropriate ExtraField, falls back to UnrecognizedExtraField.
static byte[]	mergeLocalFileDataData(List<ZipExtraField> data) Merges the local file data fields of the given ZipExtraFields.
static List<ZipExtraField>	parse(byte[] data) Split the array into ExtraFields and populate them with the given data as local file data, throwing an exception if the data cannot be parsed.
static ZipExtraField[]	parseA(byte[] data)
static void	register(Class<?> c) Register a ZipExtraField implementation.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExtraFieldUtils

public ExtraFieldUtils()

Method Detail

register

public static void register(Class<?> c)

Register a ZipExtraField implementation.

The given class must have a no-arg constructor and implement the ZipExtraField interface.

Parameters:

c - the class to register

Since:

1.1

createExtraField

public static ZipExtraField createExtraField(ZipShort headerId)
                                      throws InstantiationException,
                                             IllegalAccessException

Create an instance of the appropriate ExtraField, falls back to UnrecognizedExtraField.

Parameters:

headerId - the header identifier

Returns:

an instance of the appropriate ExtraField

Throws:

InstantiationException - if unable to instantiate the class

IllegalAccessException - if not allowed to instantiate the class

Since:

1.1

parseA

public static ZipExtraField[] parseA(byte[] data)
                              throws ZipException

Throws:

ZipException

parse

public static List<ZipExtraField> parse(byte[] data)
                                 throws ZipException

Split the array into ExtraFields and populate them with the given data as local file data, throwing an exception if the data cannot be parsed.

Parameters:

data - an array of bytes as it appears in local file data

Returns:

an array of ExtraFields

Throws:

ZipException - on error

mergeLocalFileDataData

public static byte[] mergeLocalFileDataData(List<ZipExtraField> data)

Merges the local file data fields of the given ZipExtraFields.

Parameters:

data - an array of ExtraFiles

Returns:

an array of bytes

Since:

1.1