org.apache.commons.compress.compressors.z

Class ZCompressorInputStream

java.lang.Object

java.io.InputStream

org.apache.commons.compress.compressors.CompressorInputStream

org.apache.commons.compress.compressors.z._internal_.InternalLZWInputStream

org.apache.commons.compress.compressors.z.ZCompressorInputStream

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public class ZCompressorInputStream
extends InternalLZWInputStream

Input stream that decompresses .Z files.

Since:

1.7

Field Summary

Fields inherited from class org.apache.commons.compress.compressors.z._internal_.InternalLZWInputStream

bitsCached, bitsCachedSize, characters, clearCode, codeSize, in, prefixes, previousCode, tableSize

Constructor Summary

Constructors

Constructor and Description
ZCompressorInputStream(java.io.InputStream inputStream)

Method Summary

Modifier and Type	Method and Description
protected int	addEntry(int previousCode, byte character) Add a new entry to the dictionary.
protected int	decompressNextSymbol() Read the next code and expand it.
protected int	readNextCode() Reads the next code from the stream.

Methods inherited from class org.apache.commons.compress.compressors.z._internal_.InternalLZWInputStream

addEntry, addRepeatOfPreviousCode, close, expandCodeToOutputStack, initializeTables, read, read, setClearCode

Methods inherited from class org.apache.commons.compress.compressors.CompressorInputStream

count, count, getBytesRead, getCount, pushedBackBytes

Methods inherited from class java.io.InputStream

available, mark, markSupported, read, reset, skip

Methods inherited from class java.lang.Object

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

Constructor Detail

ZCompressorInputStream

public ZCompressorInputStream(java.io.InputStream inputStream)
                       throws java.io.IOException

Throws:

java.io.IOException

Method Detail

readNextCode

protected int readNextCode()
                    throws java.io.IOException

Reads the next code from the stream.

This method is only protected for technical reasons and is not part of Commons Compress' published API. It may change or disappear without warning.

Overrides:

readNextCode in class InternalLZWInputStream

Throws:

java.io.IOException

addEntry

protected int addEntry(int previousCode,
                       byte character)
                throws java.io.IOException

Add a new entry to the dictionary.

This method is only protected for technical reasons and is not part of Commons Compress' published API. It may change or disappear without warning.

Specified by:

addEntry in class InternalLZWInputStream

Throws:

java.io.IOException

decompressNextSymbol

protected int decompressNextSymbol()
                            throws java.io.IOException

Read the next code and expand it.

This method is only protected for technical reasons and is not part of Commons Compress' published API. It may change or disappear without warning.

Specified by:

decompressNextSymbol in class InternalLZWInputStream

Throws:

java.io.IOException