org.apache.cassandra.hints

Class CompressedChecksummedDataInput

java.lang.Object

java.io.InputStream

org.apache.cassandra.io.util.RebufferingInputStream

org.apache.cassandra.io.util.RandomAccessReader

org.apache.cassandra.io.util.RandomAccessReader.RandomAccessReaderWithOwnChannel

org.apache.cassandra.hints.ChecksummedDataInput

org.apache.cassandra.hints.CompressedChecksummedDataInput

All Implemented Interfaces:

java.io.Closeable, java.io.DataInput, java.lang.AutoCloseable, DataInputPlus, FileDataInput, RewindableDataInput

public final class CompressedChecksummedDataInput
extends ChecksummedDataInput

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.cassandra.hints.ChecksummedDataInput

ChecksummedDataInput.Builder

Nested classes/interfaces inherited from class org.apache.cassandra.io.util.RandomAccessReader

RandomAccessReader.BufferedRandomAccessFileMark, RandomAccessReader.RandomAccessReaderWithOwnChannel

Nested classes/interfaces inherited from interface org.apache.cassandra.io.util.DataInputPlus

DataInputPlus.DataInputStreamPlus

Field Summary

Fields inherited from class org.apache.cassandra.io.util.RandomAccessReader

bufferOffset, bufferSize, bufferType, channel, DEFAULT_BUFFER_SIZE, limiter, markedPointer, MAX_BUFFER_SIZE, regions

Fields inherited from class org.apache.cassandra.io.util.RebufferingInputStream

buffer

Constructor Summary

Constructors

Constructor and Description
CompressedChecksummedDataInput(CompressedChecksummedDataInputBuilder builder)

Method Summary

Modifier and Type	Method and Description
boolean	isEOF() Since an entire block of compressed data is read off of disk, not just a hint at a time, we don't report EOF until the decompressed data has also been read completely
protected void	reBufferMmap()
protected void	reBufferStandard()
protected void	releaseBuffer()
static ChecksummedDataInput	upgradeInput(ChecksummedDataInput input, ICompressor compressor)

Methods inherited from class org.apache.cassandra.hints.ChecksummedDataInput

bytesPastLimit, checkCrc, checkLimit, limit, open, read, readFully, reBuffer, resetCrc, resetLimit

Methods inherited from class org.apache.cassandra.io.util.RandomAccessReader.RandomAccessReaderWithOwnChannel

close

Methods inherited from class org.apache.cassandra.io.util.RandomAccessReader

allocateBuffer, available, bytesPastMark, bytesPastMark, bytesRemaining, current, getChannel, getFilePointer, getPath, getPosition, length, mark, markSupported, open, readLine, reset, reset, seek, toString

Methods inherited from class org.apache.cassandra.io.util.RebufferingInputStream

read, readBoolean, readByte, readChar, readDouble, readFloat, readFully, readInt, readLong, readPrimitiveSlowly, readShort, readUnsignedByte, readUnsignedShort, readUnsignedVInt, readUTF, readVInt, skipBytes

Methods inherited from class java.io.InputStream

mark, read, skip

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.cassandra.io.util.DataInputPlus

readUnsignedVInt, readVInt, skipBytes, skipBytesFully

Methods inherited from interface java.io.DataInput

readBoolean, readByte, readChar, readDouble, readFloat, readFully, readInt, readLong, readShort, readUnsignedByte, readUnsignedShort, readUTF

Constructor Detail

CompressedChecksummedDataInput

public CompressedChecksummedDataInput(CompressedChecksummedDataInputBuilder builder)

Method Detail

isEOF

public boolean isEOF()

Since an entire block of compressed data is read off of disk, not just a hint at a time, we don't report EOF until the decompressed data has also been read completely

Specified by:

isEOF in interface FileDataInput

Overrides:

isEOF in class RandomAccessReader

Returns:

true if there is no more data to read

reBufferStandard

protected void reBufferStandard()

Overrides:

reBufferStandard in class RandomAccessReader

releaseBuffer

protected void releaseBuffer()

Overrides:

releaseBuffer in class ChecksummedDataInput

reBufferMmap

protected void reBufferMmap()

Overrides:

reBufferMmap in class RandomAccessReader

upgradeInput

public static ChecksummedDataInput upgradeInput(ChecksummedDataInput input,
                                                ICompressor compressor)