Class java.util.zip.ZipInputStream





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Class java.util.zip.ZipInputStream


java.lang.Object
|
+----java.io.InputStream
|
+----java.io.FilterInputStream
|
+----java.util.zip.InflaterInputStream
|
+----java.util.zip.ZipInputStream



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.








ZipInputStream(InputStream)
Creates a new ZIP input stream.






close()
Closes the ZIP input stream.

closeEntry()
Closes the current ZIP entry and positions the stream for reading the
next entry.

getNextEntry()
Reads the next ZIP file entry and positions stream at the beginning
of the entry data.

read(byte[], int, int)
Reads from the current ZIP entry into an array of bytes.

skip(long)
Skips specified number of bytes in the current ZIP entry.







ZipInputStream

public ZipInputStream(InputStream in)


Creates a new ZIP input stream.


Parameters:
in - the actual input stream







getNextEntry

public ZipEntry getNextEntry() throws IOException


Reads the next ZIP file entry and positions stream at the beginning
of the entry data.


Throws: ZipException
if a ZIP file error has occurred
Throws: IOException
if an I/O error has occurred



closeEntry

public void closeEntry() throws IOException


Closes the current ZIP entry and positions the stream for reading the
next entry.


Throws: ZipException
if a ZIP file error has occurred
Throws: IOException
if an I/O error has occurred



read

public int read(byte b[],
int off,
int len) throws IOException


Reads from the current ZIP entry into an array of bytes. Blocks until
some input is available.


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
entry is reached
Throws: ZipException
if a ZIP file error has occurred
Throws: IOException
if an I/O error has occurred
Overrides:
read in class InflaterInputStream



skip

public long skip(long n) throws IOException


Skips specified number of bytes in the current ZIP entry.


Parameters:
n - the number of bytes to skip
Returns:
the actual number of bytes skipped
Throws: ZipException
if a ZIP file error has occurred
Throws: IOException
if an I/O error has occurred
Overrides:
skip in class InflaterInputStream



close

public void close() throws IOException


Closes the ZIP input stream.


Throws: IOException
if an I/O error has occurred
Overrides:
close in class FilterInputStream




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