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ExtraFieldUtils (Apache Ant API)

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org.apache.tools.zip
Class ExtraFieldUtils


java.lang.Object

  |

  +--org.apache.tools.zip.ExtraFieldUtils

public class ExtraFieldUtils
extends java.lang.Object

ZipExtraField related methods

Version:: $Revision: 1.2 $
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(java.lang.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(java.lang.Class c)

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

Since:: 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.

java.lang.InstantiationException; java.lang.IllegalAccessException
Since:: 1.1

parse


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

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

java.util.zip.ZipException
Since:: 1.1

mergeLocalFileDataData


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

Merges the local file data fields of the given ZipExtraFields.

Since:: 1.1

mergeCentralDirectoryData


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

Merges the central directory fields of the given ZipExtraFields.

Since:: 1.1