Package org.apache.commons.compress.archivers.jar

Class JarArchiveInputStream

java.lang.Object

java.io.InputStream

org.apache.commons.compress.archivers.ArchiveInputStream

org.apache.commons.compress.archivers.zip.ZipArchiveInputStream

org.apache.commons.compress.archivers.jar.JarArchiveInputStream

All Implemented Interfaces:

Closeable, AutoCloseable, InputStreamStatistics

public class JarArchiveInputStream
extends ZipArchiveInputStream

Implements an input stream that can read entries from jar files.

This class is not thread-safe

Constructor Summary

Constructors

Constructor	Description
JarArchiveInputStream(InputStream inputStream)	Creates an instance from the input stream using the default encoding.
JarArchiveInputStream(InputStream inputStream, String encoding)	Creates an instance from the input stream using the specified encoding.

Method Summary

Modifier and Type	Method	Description
ArchiveEntry	getNextEntry()	Returns the next Archive Entry in this Stream.
JarArchiveEntry	getNextJarEntry()
static boolean	matches(byte[] signature, int length)	Checks if the signature matches what is expected for a jar file (in this case it is the same as for a zip file).

Methods inherited from class org.apache.commons.compress.archivers.zip.ZipArchiveInputStream

canReadEntryData, close, getCompressedCount, getNextZipEntry, getUncompressedCount, read, skip

Methods inherited from class org.apache.commons.compress.archivers.ArchiveInputStream

count, count, getBytesRead, getCount, pushedBackBytes, read

Methods inherited from class java.io.InputStream

available, mark, markSupported, read, reset

Methods inherited from class java.lang.Object

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

Constructor Detail

JarArchiveInputStream

public JarArchiveInputStream(InputStream inputStream)

Creates an instance from the input stream using the default encoding.

Parameters:

inputStream - the input stream to wrap

JarArchiveInputStream

public JarArchiveInputStream(InputStream inputStream,
                             String encoding)

Creates an instance from the input stream using the specified encoding.

Parameters:

inputStream - the input stream to wrap

encoding - the encoding to use

Since:

1.10

Method Detail

getNextJarEntry

public JarArchiveEntry getNextJarEntry()
                                throws IOException

Throws:

IOException

getNextEntry

public ArchiveEntry getNextEntry()
                          throws IOException

Description copied from class: ArchiveInputStream

Returns the next Archive Entry in this Stream.

Overrides:

getNextEntry in class ZipArchiveInputStream

Returns:

the next entry, or null if there are no more entries

Throws:

IOException - if the next entry could not be read

matches

public static boolean matches(byte[] signature,
                              int length)

Checks if the signature matches what is expected for a jar file (in this case it is the same as for a zip file).

Parameters:

signature - the bytes to check

length - the number of bytes to check

Returns:

true, if this stream is a jar archive stream, false otherwise