org.apache.tools.zip

## Class UnparseableExtraFieldData

- java.lang.Object
- - org.apache.tools.zip.UnparseableExtraFieldData

All Implemented Interfaces:
  CentralDirectoryParsingZipExtraField, ZipExtraField

    public final class UnparseableExtraFieldData
    extends java.lang.Object
    implements CentralDirectoryParsingZipExtraField

Wrapper for extra field data that doesn't conform to the recommended format of header-tag + size + data.

The header-id is artificial (and not listed as a know ID in the .ZIP File Format Specification). Since it isn't used anywhere except to satisfy the ZipExtraField contract it shouldn't matter anyway.

Since:
  Ant 1.8.1
See Also:
  .ZIP File Format Specification

### Constructor Summary

Constructors
Constructor and Description
`UnparseableExtraFieldData()`

### Method Summary

Methods
`byte[]` `getCentralDirectoryData()` The actual data to put into central directory.
`ZipShort` `getCentralDirectoryLength()` Length of the complete extra field in the central directory.
`ZipShort` `getHeaderId()` The Header-ID.
`byte[]` `getLocalFileDataData()` The actual data to put into local file data.
`ZipShort` `getLocalFileDataLength()` Length of the complete extra field in the local file data.
`void` `parseFromCentralDirectoryData(byte[] buffer, int offset, int length)` Populate data from this array as if it was in central directory data.
`void` `parseFromLocalFileData(byte[] buffer, int offset, int length)` Populate data from this array as if it was in local file data.

### Methods inherited from class java.lang.Object

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

### Constructor Detail

#### UnparseableExtraFieldData

    public UnparseableExtraFieldData()

### Method Detail

#### getHeaderId

    public ZipShort getHeaderId()

The Header-ID.

Specified by:
  `getHeaderId` in interface `ZipExtraField`
Returns:
  a completely arbitrary value that should be ignored.

#### getLocalFileDataLength

    public ZipShort getLocalFileDataLength()

Length of the complete extra field in the local file data.

Specified by:
  `getLocalFileDataLength` in interface `ZipExtraField`
Returns:
  The LocalFileDataLength value

#### getCentralDirectoryLength

    public ZipShort getCentralDirectoryLength()

Length of the complete extra field in the central directory.

Specified by:
  `getCentralDirectoryLength` in interface `ZipExtraField`
Returns:
  The CentralDirectoryLength value

#### getLocalFileDataData

    public byte[] getLocalFileDataData()

The actual data to put into local file data.

Specified by:
  `getLocalFileDataData` in interface `ZipExtraField`
Returns:
  The LocalFileDataData value

#### getCentralDirectoryData

    public byte[] getCentralDirectoryData()

The actual data to put into central directory.

Specified by:
  `getCentralDirectoryData` in interface `ZipExtraField`
Returns:
  The CentralDirectoryData value

#### parseFromLocalFileData

    public void parseFromLocalFileData(byte[] buffer,
                              int offset,
                              int length)

Populate data from this array as if it was in local file data.

Specified by:
  `parseFromLocalFileData` in interface `ZipExtraField`
Parameters:
  `buffer` - the buffer to read data from
  `offset` - offset into buffer to read data
  `length` - the length of data

#### parseFromCentralDirectoryData

    public void parseFromCentralDirectoryData(byte[] buffer,
                                     int offset,
                                     int length)

Populate data from this array as if it was in central directory data.

Specified by:
  `parseFromCentralDirectoryData` in interface `CentralDirectoryParsingZipExtraField`
Parameters:
  `buffer` - the buffer to read data from
  `offset` - offset into buffer to read data
  `length` - the length of data
Throws:
  `ZipException` - on error