Package org.verapdf.cos.filters

Class COSFilterFlateDecode

java.lang.Object

java.io.InputStream

org.verapdf.as.io.ASInputStream

org.verapdf.as.filters.ASInFilter

org.verapdf.as.filters.io.ASBufferedInFilter

org.verapdf.cos.filters.COSFilterFlateDecode

All Implemented Interfaces:

Closeable, AutoCloseable, BaseParserInputStream

public class COSFilterFlateDecode
extends ASBufferedInFilter

This class implements Flate decoding.

Author:

Sergey Shemyakov

Field Summary

Fields inherited from class org.verapdf.as.filters.io.ASBufferedInFilter

BF_BUFFER_SIZE, buffer, START_BUFFER_SIZE

Fields inherited from class org.verapdf.as.io.ASInputStream

isClosed, isSourceClosed, resourceUsers

Constructor Summary

Constructors

Constructor	Description
COSFilterFlateDecode(ASInputStream stream)	Constructor from Flate encoded stream.

Method Summary

Modifier and Type	Method	Description
int	read(byte[] buffer, int size)	Decodes flate compressed data from stream and reads up to size bytes of decompressed data into given array.
int	readByByte(byte[] buffer, int startOffset, int size)
void	reset()

Methods inherited from class org.verapdf.as.filters.io.ASBufferedInFilter

addToBuffer, bufferPop, bufferPopArray, bufferSize, closeResource, concatenate, feedBuffer, getBufferBegin, getBufferCapacity, getBufferEnd, getReadCounter, getStream, getStreamUntilToken, initialize, isEOF, peek, peek, processBuffer, read, readByte, resetReadCounter, skip, unread, unread

Methods inherited from class org.verapdf.as.filters.ASInFilter

close, decrementResourceUsers, getInputStream, incrementResourceUsers, read, setInputStream

Methods inherited from class org.verapdf.as.io.ASInputStream

createStreamFromStream

Methods inherited from class java.io.InputStream

available, mark, markSupported, nullInputStream, read, readAllBytes, readNBytes, readNBytes, skip, skipNBytes, transferTo

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.verapdf.parser.BaseParserInputStream

close, read

Constructor Details

COSFilterFlateDecode

public COSFilterFlateDecode(ASInputStream stream)
                     throws IOException

Constructor from Flate encoded stream.

Parameters:

stream - is Flate encoded stream.

Throws:

IOException

Method Details

read

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

Decodes flate compressed data from stream and reads up to size bytes of decompressed data into given array.

Overrides:

read in class ASBufferedInFilter

Parameters:

buffer - is array into which data will be decompressed.

size - is maximal amount of decompressed bytes.

Returns:

amount of actually read bytes.

Throws:

IOException

readByByte

public int readByByte(byte[] buffer,
 int startOffset,
 int size)
               throws IOException

Throws:

IOException

reset

public void reset()
           throws IOException

Overrides:

reset in class ASBufferedInFilter

Throws:

IOException