de.schlichtherle.util.zip
Class BasicZipFile.IntervalInputStream

java.lang.Object
  java.io.InputStream
      de.schlichtherle.util.zip.BasicZipFile.AccountedInputStream
          de.schlichtherle.util.zip.BasicZipFile.IntervalInputStream

All Implemented Interfaces:

Closeable

Enclosing class:

BasicZipFile

private class BasicZipFile.IntervalInputStream
extends BasicZipFile.AccountedInputStream

InputStream that delegates requests to the underlying RandomAccessFile, making sure that only bytes from a certain range can be read. Calling close() on the enclosing BasicZipFile instance causes all corresponding instances of this member class to get close()d, too. Note that this class is not thread safe!

Field Summary

private boolean	addDummyByte
private long	fp
private long	remaining

Constructor Summary

BasicZipFile.IntervalInputStream(long start, long remaining)

Method Summary

(package private) void	addDummy() Inflater needs an extra dummy byte for nowrap - see Inflater's javadocs.
int	available()
int	read()
int	read(byte[] b, int off, int len)

Methods inherited from class de.schlichtherle.util.zip.BasicZipFile.AccountedInputStream

close

Methods inherited from class java.io.InputStream

mark, markSupported, read, reset, skip

Methods inherited from class java.lang.Object

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

Field Detail

remaining

private long remaining

fp

private long fp

addDummyByte

private boolean addDummyByte

Constructor Detail

BasicZipFile.IntervalInputStream

BasicZipFile.IntervalInputStream(long start,
                                 long remaining)

Parameters:

start - The start address (not offset) in archive.

remaining - The remaining bytes allowed to be read in archive.

Method Detail

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException

read

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

Overrides:

read in class InputStream

Throws:

IOException

addDummy

void addDummy()

Inflater needs an extra dummy byte for nowrap - see Inflater's javadocs.

available

public int available()
              throws IOException

Overrides:

available in class InputStream

Returns:

The number of bytes remaining in this entry, yet maximum Integer.MAX_VALUE. Note that this is only relevant for entries which have been stored with the STORED method. For entries stored according to the DEFLATED method, the value returned by this method on the InputStream returned by BasicZipFile.getInputStream(java.lang.String) is actually determined by an InflaterInputStream.

Throws:

IOException