com.myJava.file.archive.zip64
Class ZipInputStream

java.lang.Object
  extended by java.io.InputStream
      extended by java.io.FilterInputStream
          extended by com.myJava.file.archive.zip64.InflaterInputStream
              extended by com.myJava.file.archive.zip64.ZipInputStream
All Implemented Interfaces:
ZipConstants, java.io.Closeable

public class ZipInputStream
extends InflaterInputStream
implements ZipConstants

This class implements an input stream filter for reading files in the ZIP file format. Includes support for both compressed and uncompressed entries.

Version:
1.33, 02/07/03
This class was derived from the original java.util.zip.ZipInputStream.
The following modifications were made :
- This new class reads zip32 and zip64 archives but IGNORES file size written in local entry headers. (these data are read from the EXT area)
- Package change
- Only DEFLATED files are handled
- Multivolumes support
- Buffer size parameterization
Author:
David Connelly, Olivier Petrucci

CAUTION :
This file has been integrated into Areca.
It is has also possibly been adapted to meet Areca's needs. If such modifications has been made, they are described above.
Thanks to the authors for their work.
Areca Build ID : 7299034069467778562

Field Summary
 
Fields inherited from class com.myJava.file.archive.zip64.InflaterInputStream
buf, inf, len
 
Fields inherited from class java.io.FilterInputStream
in
 
Fields inherited from interface com.myJava.file.archive.zip64.ZipConstants
CENATT, CENATX, CENCOM, CENCRC, CENDSK, CENEXT, CENFLG, CENHDR, CENHOW, CENLEN, CENNAM, CENOFF, CENSIG, CENSIZ, CENTIM, CENVEM, CENVER, DEFAULT_CHARSET, ENDCOM, ENDHDR, ENDOFF, ENDSIG, ENDSIZ, ENDSUB, ENDTOT, EXTCRC, EXTHDR, EXTHDR64, EXTLEN, EXTLEN64, EXTSIG, EXTSIZ, LOCCRC, LOCEXT, LOCFLG, LOCHDR, LOCHOW, LOCLEN, LOCNAM, LOCSIG, LOCSIZ, LOCTIM, LOCVER, MAX_INT, MVSIG, SIZE_INT, SIZE_LONG, SIZE_SHORT, ZIP64ENDLENGTH, ZIP64ENDLOCSIG, ZIP64ENDSIG, ZIP64SIZEFLAG, ZIP64VERSION, ZIP64XTRAFIELD, ZIP64XTRALENGTH, ZIPVERSION
 
Constructor Summary
ZipInputStream(java.io.InputStream in)
           
 
Method Summary
 int available()
          Returns 0 after EOF has reached, otherwise always return 1.
 void close()
          Closes the input stream.
 void closeEntry()
           
protected  ZipEntry createZipEntry(java.lang.String name)
           
 java.nio.charset.Charset getCharset()
           
 ZipEntry getNextEntry()
           
 int read(byte[] b, int off, int len)
          Reads uncompressed data into an array of bytes.
 void setCharset(java.nio.charset.Charset charset)
           
 long skip(long n)
          Skips specified number of bytes of uncompressed data.
 
Methods inherited from class com.myJava.file.archive.zip64.InflaterInputStream
fill, getTotalOut, read, resetInflater
 
Methods inherited from class java.io.FilterInputStream
mark, markSupported, read, reset
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

ZipInputStream

public ZipInputStream(java.io.InputStream in)
Method Detail

getNextEntry

public ZipEntry getNextEntry()
                      throws java.io.IOException
Throws:
java.io.IOException

closeEntry

public void closeEntry()
                throws java.io.IOException
Throws:
java.io.IOException

available

public int available()
              throws java.io.IOException
Description copied from class: InflaterInputStream
Returns 0 after EOF has reached, otherwise always return 1.

Programs should not count on this method to return the actual number of bytes that could be read without blocking.

Overrides:
available in class InflaterInputStream
Returns:
1 before EOF and 0 after EOF.
Throws:
java.io.IOException - if an I/O error occurs.

getCharset

public java.nio.charset.Charset getCharset()

setCharset

public void setCharset(java.nio.charset.Charset charset)

read

public int read(byte[] b,
                int off,
                int len)
         throws java.io.IOException
Description copied from class: InflaterInputStream
Reads uncompressed data into an array of bytes. This method will block until some input can be decompressed.

Overrides:
read in class InflaterInputStream
Parameters:
b - the buffer into which the data is read
off - the start offset of the data
len - the maximum number of bytes read
Returns:
the actual number of bytes read, or -1 if the end of the compressed input is reached or a preset dictionary is needed
Throws:
java.util.zip.ZipException - if a ZIP format error has occurred
java.io.IOException - if an I/O error has occurred

skip

public long skip(long n)
          throws java.io.IOException
Description copied from class: InflaterInputStream
Skips specified number of bytes of uncompressed data.

Overrides:
skip in class InflaterInputStream
Parameters:
n - the number of bytes to skip
Returns:
the actual number of bytes skipped.
Throws:
java.io.IOException - if an I/O error has occurred

close

public void close()
           throws java.io.IOException
Description copied from class: InflaterInputStream
Closes the input stream.

Specified by:
close in interface java.io.Closeable
Overrides:
close in class InflaterInputStream
Throws:
java.io.IOException - if an I/O error has occurred

createZipEntry

protected ZipEntry createZipEntry(java.lang.String name)