readium-shared/org.readium.r2.shared.util.zip.compress.archivers.zip/ZipExtraField

ZipExtraField

interface ZipExtraField

General format of extra field data.

Extra fields usually appear twice per file, once in the local file data and once in the central directory. Usually they are the same, but they don't have to be. java.util.zip.ZipOutputStream will only use the local file data in both places.

Inheritors

Properties

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val EXTRAFIELD_HEADER_SIZE: Int = 4
Size of an extra field field header (id + length).

Functions

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abstract fun getCentralDirectoryData(): Array<Byte>
The actual data to put into central directory - without Header-ID or length specifier.
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abstract fun getCentralDirectoryLength(): ZipShort
Length of the extra field in the central directory - without Header-ID or length specifier.
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abstract fun getHeaderId(): ZipShort
The Header-ID.
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abstract fun getLocalFileDataData(): Array<Byte>
The actual data to put into local file data - without Header-ID or length specifier.
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abstract fun getLocalFileDataLength(): ZipShort
Length of the extra field in the local file data - without Header-ID or length specifier.
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abstract fun parseFromCentralDirectoryData(buffer: Array<Byte>, offset: Int, length: Int)
Populate data from this array as if it was in central directory data.
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abstract fun parseFromLocalFileData(buffer: Array<Byte>, offset: Int, length: Int)
Populate data from this array as if it was in local file data.
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