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

java.lang.Object
  java.io.InputStream
      org.apache.commons.compress.archivers.ArchiveInputStream
          org.apache.commons.compress.archivers.zip.ZipArchiveInputStream

All Implemented Interfaces:

java.io.Closeable

Direct Known Subclasses:

JarArchiveInputStream

public class ZipArchiveInputStream
extends ArchiveInputStream

Implements an input stream that can read Zip archives.

Note that ZipEntry.getSize() may return -1 if the DEFLATE algorithm is used, as the size information is not available from the header.

The ZipFile class is preferred when reading from files.

See Also:

ZipFile

Constructor Summary

ZipArchiveInputStream(java.io.InputStream inputStream)

ZipArchiveInputStream(java.io.InputStream inputStream, java.lang.String encoding, boolean useUnicodeExtraFields)

Method Summary

void	close()
ArchiveEntry	getNextEntry() Returns the next Archive Entry in this Stream.
ZipArchiveEntry	getNextZipEntry()
static boolean	matches(byte[] signature, int length)
int	read(byte[] buffer, int start, int length)
long	skip(long value)

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

count, getCount, 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

ZipArchiveInputStream

public ZipArchiveInputStream(java.io.InputStream inputStream)

ZipArchiveInputStream

public ZipArchiveInputStream(java.io.InputStream inputStream,
                             java.lang.String encoding,
                             boolean useUnicodeExtraFields)

Parameters:

encoding - the encoding to use for file names, use null for the platform's default encoding

useUnicodeExtraFields - whether to use InfoZIP Unicode Extra Fields (if present) to set the file names.

Method Detail

getNextZipEntry

public ZipArchiveEntry getNextZipEntry()
                                throws java.io.IOException

Throws:

java.io.IOException

getNextEntry

public ArchiveEntry getNextEntry()
                          throws java.io.IOException

Description copied from class: ArchiveInputStream

Returns the next Archive Entry in this Stream.

Specified by:

getNextEntry in class ArchiveInputStream

Returns:

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

Throws:

java.io.IOException - if the next entry could not be read

read

public int read(byte[] buffer,
                int start,
                int length)
         throws java.io.IOException

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Overrides:

close in class java.io.InputStream

Throws:

java.io.IOException

skip

public long skip(long value)
          throws java.io.IOException

Overrides:

skip in class java.io.InputStream

Throws:

java.io.IOException

matches

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