org.apache.commons.compress.archivers.zip
Class ExtraFieldUtils

java.lang.Object
  extended by org.apache.commons.compress.archivers.zip.ExtraFieldUtils

public class ExtraFieldUtils
extends Object

ZipExtraField related methods

Version:
$Revision: 155439 $
Author:
Stefan Bodewig

Constructor Summary
ExtraFieldUtils()
           
 
Method Summary
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 give data.
static void register(Class clazz)
          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

createExtraField

public static ZipExtraField createExtraField(ZipShort headerID)
                                      throws InstantiationException,
                                             IllegalAccessException
Create an instance of the approriate ExtraField, falls back to UnrecognizedExtraField. Throws java.lang.IllegalAccessException if cant create implementation.

Parameters:
headerID - the header ID
Returns:
the extra field implementation
Throws:
InstantiationException - if cant create implementation
IllegalAccessException - if cant create implementation
Since:
1.1

mergeCentralDirectoryData

public static byte[] mergeCentralDirectoryData(ZipExtraField[] data)
Merges the central directory fields of the given ZipExtraFields.

Parameters:
data - the central directory data
Returns:
the merged data
Since:
1.1

mergeLocalFileDataData

public static byte[] mergeLocalFileDataData(ZipExtraField[] data)
Merges the local file data fields of the given ZipExtraFields.

Parameters:
data - the data
Returns:
the merged data
Since:
1.1

parse

public static ZipExtraField[] parse(byte[] data)
                             throws ZipException
Split the array into ExtraFields and populate them with the give data.

Parameters:
data - the data to parse
Returns:
the parsed fields
Throws:
ZipException - on error
Since:
1.1

register

public static void register(Class clazz)
Register a ZipExtraField implementation.

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

Parameters:
clazz - The Class for particular implementation
Since:
1.1


Copyright © 2011 Apache Software Foundation. All Rights Reserved.