java.util.zip
Class ZipInputStream

java.lang.Object
  java.io.InputStream
      java.io.FilterInputStream
          java.util.zip.InflaterInputStream
              java.util.zip.ZipInputStream

All Implemented Interfaces:

Closeable, ZipConstants

Direct Known Subclasses:

JarInputStream

public class ZipInputStream
extends InflaterInputStream
implements ZipConstants

ZipInputStream is an input stream for reading zip files.

See Also:

ZipEntry, ZipFile

Field Summary

(package private) ZipEntry	currentEntry
(package private) static int	DEFLATED
(package private) static int	STORED
(package private) static int	ZIPDataDescriptorFlag
(package private) static int	ZIPLocalHeaderVersionNeeded

Fields inherited from class java.util.zip.InflaterInputStream

buf, BUF_SIZE, closed, eof, inf, len, nativeEndBufSize

Fields inherited from class java.io.FilterInputStream

in

Fields inherited from interface java.util.zip.ZipConstants

CENATT, CENATX, CENCOM, CENCRC, CENDSK, CENEXT, CENFLG, CENHDR, CENHOW, CENLEN, CENNAM, CENOFF, CENSIG, CENSIZ, CENTIM, CENVEM, CENVER, ENDCOM, ENDHDR, ENDOFF, ENDSIG, ENDSIZ, ENDSUB, ENDTOT, EXTCRC, EXTHDR, EXTLEN, EXTSIG, EXTSIZ, LOCCRC, LOCEXT, LOCFLG, LOCHDR, LOCHOW, LOCLEN, LOCNAM, LOCSIG, LOCSIZ, LOCTIM, LOCVER

Constructor Summary

ZipInputStream(InputStream stream)
Constructs a new ZipInputStream on the specified input stream.

Method Summary

int	available() Returns 1 if the EOF has been reached, otherwise returns 0.
void	close() Closes this ZipInputStream.
void	closeEntry() Closes the current zip entry and positions to read the next entry.
protected ZipEntry	createZipEntry(String name)
ZipEntry	getNextEntry() Reads the next zip entry from this ZipInputStream.
int	read(byte[] buffer, int start, int length) Reads up to the specified number of uncompressed bytes into the buffer starting at the offset.
long	skip(long value) Skips up to the specified number of bytes in the current zip entry.

Methods inherited from class java.util.zip.InflaterInputStream

fill, mark, markSupported, read, reset

Methods inherited from class java.io.FilterInputStream

read

Methods inherited from class java.lang.Object

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

Field Detail

DEFLATED

static final int DEFLATED

See Also:

Constant Field Values

STORED

static final int STORED

See Also:

Constant Field Values

ZIPDataDescriptorFlag

static final int ZIPDataDescriptorFlag

See Also:

Constant Field Values

ZIPLocalHeaderVersionNeeded

static final int ZIPLocalHeaderVersionNeeded

See Also:

Constant Field Values

currentEntry

ZipEntry currentEntry

Constructor Detail

ZipInputStream

public ZipInputStream(InputStream stream)

Constructs a new ZipInputStream on the specified input stream.

Parameters:

stream - the input stream

Method Detail

close

public void close()
           throws IOException

Closes this ZipInputStream.

Specified by:

close in interface Closeable

Overrides:

close in class InflaterInputStream

Throws:

IOException - If an error occurs closing the stream

closeEntry

public void closeEntry()
                throws IOException

Closes the current zip entry and positions to read the next entry.

Throws:

IOException

getNextEntry

public ZipEntry getNextEntry()
                      throws IOException

Reads the next zip entry from this ZipInputStream.

Throws:

IOException

read

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

Reads up to the specified number of uncompressed bytes into the buffer starting at the offset.

Overrides:

read in class InflaterInputStream

Parameters:

buffer - a byte array

start - the starting offset into the buffer

length - the number of bytes to read

Returns:

the number of bytes read

Throws:

IOException - If an error occurs reading

skip

public long skip(long value)
          throws IOException

Skips up to the specified number of bytes in the current zip entry.

Overrides:

skip in class InflaterInputStream

Parameters:

value - the number of bytes to skip

Returns:

the number of bytes skipped

Throws:

IOException - If an error occurs skipping

available

public int available()
              throws IOException

Returns 1 if the EOF has been reached, otherwise returns 0.

Overrides:

available in class InflaterInputStream

Returns:

0 after EOF of current entry, 1 otherwise

Throws:

IOException - If an error occurs

createZipEntry

protected ZipEntry createZipEntry(String name)