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## 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

Constructor Summary
`UnrecognizedExtraField()`

Method Summary
`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)`

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Copyright © 2010 The Apache Software Foundation. All Rights Reserved.