com.sh.common.zip

类 ExtraFieldUtils

java.lang.Object

com.sh.common.zip.ExtraFieldUtils

public class ExtraFieldUtils
extends java.lang.Object

ZipExtraField related methods

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	ExtraFieldUtils.UnparseableExtraField "enum" for the possible actions to take if the extra field cannot be parsed.

构造器概要

构造器

构造器和说明
ExtraFieldUtils()

方法概要

限定符和类型	方法和说明
static ZipExtraField	createExtraField(ZipShort headerId) Create an instance of the approriate ExtraField, falls back to UnrecognizedExtraField.
static byte[]	mergeCentralDirectoryData(ZipExtraField[] data) Merges the central directory fields of the given ZipExtraFields.
static byte[]	mergeLocalFileDataData(ZipExtraField[] data) Merges the local file data fields of the given ZipExtraFields.
static 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[]	parse(byte[] data, boolean local) Split the array into ExtraFields and populate them with the given data, throwing an exception if the data cannot be parsed.
static ZipExtraField[]	parse(byte[] data, boolean local, ExtraFieldUtils.UnparseableExtraField onUnparseableData) Split the array into ExtraFields and populate them with the given data.
static void	register(java.lang.Class c) Register a ZipExtraField implementation.

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

ExtraFieldUtils

public ExtraFieldUtils()

方法详细资料

register

public static void register(java.lang.Class c)

Register a ZipExtraField implementation.

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

参数:

c - the class to register

从以下版本开始:

1.1

createExtraField

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

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

参数:

headerId - the header identifier

返回:

an instance of the appropiate ExtraField

抛出:

java.lang.InstantiationException - if unable to instantiate the class

java.lang.IllegalAccessException - if not allowed to instatiate the class

从以下版本开始:

1.1

parse

public static ZipExtraField[] parse(byte[] data)
                             throws java.util.zip.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.

参数:

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

返回:

an array of ExtraFields

抛出:

java.util.zip.ZipException - on error

parse

public static ZipExtraField[] parse(byte[] data,
                                    boolean local)
                             throws java.util.zip.ZipException

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

参数:

data - an array of bytes

local - whether data originates from the local file data or the central directory

返回:

an array of ExtraFields

抛出:

java.util.zip.ZipException - on error

从以下版本开始:

1.1

parse

public static ZipExtraField[] parse(byte[] data,
                                    boolean local,
                                    ExtraFieldUtils.UnparseableExtraField onUnparseableData)
                             throws java.util.zip.ZipException

Split the array into ExtraFields and populate them with the given data.

参数:

data - an array of bytes

local - whether data originates from the local file data or the central directory

onUnparseableData - what to do if the extra field data cannot be parsed.

返回:

an array of ExtraFields

抛出:

java.util.zip.ZipException - on error

从以下版本开始:

Ant 1.8.1

mergeLocalFileDataData

public static byte[] mergeLocalFileDataData(ZipExtraField[] data)

Merges the local file data fields of the given ZipExtraFields.

参数:

data - an array of ExtraFiles

返回:

an array of bytes

从以下版本开始:

1.1

mergeCentralDirectoryData

public static byte[] mergeCentralDirectoryData(ZipExtraField[] data)

Merges the central directory fields of the given ZipExtraFields.

参数:

data - an array of ExtraFields

返回:

an array of bytes

从以下版本开始:

1.1