Package de.schlichtherle.util.zip

A drop-in replacement for the classes in the package java.util.zip which read and write ZIP files.

See:
Description

Interface Summary

ZIP	A package private interface with some useful constants for ZIP compatible files.

Class Summary

BasicZipFile	This class is not intended for public use!
BasicZipFile.CheckedInputStream
BasicZipFile.IrregularOffsetMapper
BasicZipFile.OffsetMapper
BasicZipFile.PooledInflaterInputStream
BasicZipFile.RawCheckedInputStream	A stream which reads and returns deflated data from its input while a CRC-32 checksum is computed over the inflated data and checked in the method close.
BasicZipOutputStream	This class is not intended for public use!
BasicZipOutputStream.ZipDeflater	A Deflater which can be asked for its current deflation level and counts input and output data length as a long integer value.
DateTimeConverter	Converts Java time values to DOS date/time values and vice versa.
DefaultExtraField	Default implementation for an Extra Field in a Local or Central Header of a ZIP archive.
ExtraField	Abstract base class for an Extra Field in a Local or Central Header of a ZIP archive.
ExtraFields	Represents a collection of Extra Fields as they may be present at several locations in ZIP archive files.
InflaterPool	Provides utility methods for pooling Inflaters.
LittleEndian	Provides static utility methods for reading and writing integer values in little endian format from or to byte arrays.
UByte	Provides constants and static utility methods for unsigned byte integer values (8 bits).
UInt	Provides constants and static utility methods for unsigned integer values (32 bits).
ULong	Provides constants and static utility methods for unsigned long integer values (63 bits).
UShort	Provides constants and static utility methods for unsigned short integer values (16 bits).
ZipEntry	Drop-in replacement for java.util.zip.ZipEntry.
ZipFile	Drop-in replacement for java.util.zip.ZipFile.
ZipOutputStream	Drop-in replacement for java.util.zip.ZipOutputStream.

Exception Summary

CRC32Exception

Thrown to indicate a CRC-32 mismatch between the declared value in the Central File Header and the Data Descriptor or between the declared value and the computed value from the decompressed data.

Package de.schlichtherle.util.zip Description

A drop-in replacement for the classes in the package java.util.zip which read and write ZIP files.

The classes in this package read and write ZIP files according to a subset of PKWARE's ZIP File Format Specification , Version 6.3.2 from September 28, 2007. The subset has been selected in order to achieve the following objectives:

• Full interoperability with ZIP files read or written by the package java.util.zip of Sun's Java SE 6 implementation.
• Support for arbitrary character sets, in particular IBM Code Page 437 (alias IBM PC) for PKZIP compatibility and UTF-8 for Java Archive (JAR) compatibility. Note that using any other character set except CP437 or UTF-8 is strongly discouraged because it will result in interoperability issues with third party tools, especially when interchanging archive files between different locales!
• Support for reading and writing ZIP64 extensions with the following restrictions:
  1. The maximum file size is Long.MAX_VALUE.
  2. The maximum number of entries in the Central Directory is Integer.MAX_VALUE.
  3. The offsets in ZIP64 files must respect a preamble if present, i.e. they must by exact. This is in contrast to ZIP32 files where the offsets do not need to respect a preamble if present. Preambles are primarily used to contain self extracting (SFX) executable code.
• ZipFile supports reading archive data from the random access read only interface ReadOnlyFile, which allows to read archive data from complex data sources such as RAES encrypted ZIP files directly without the need to decrypt these to a temporary file first (see package de.schlichtherle.crypto.io.raes).