org.apache.cassandra.db.streaming

Class CompressedInputStream

java.lang.Object

java.io.InputStream

org.apache.cassandra.io.util.RebufferingInputStream

org.apache.cassandra.db.streaming.CompressedInputStream

All Implemented Interfaces:

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

public class CompressedInputStream
extends RebufferingInputStream
implements java.lang.AutoCloseable

InputStream which reads data from underlining source with given CompressionInfo. Uses RebufferingInputStream.buffer as a buffer for uncompressed data (which is read by stream consumers - CassandraStreamReader.StreamDeserializer in this case).

Nested Class Summary

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.RebufferingInputStream

buffer

Constructor Summary

Constructors

Constructor and Description
CompressedInputStream(DataInputPlus source, CompressionInfo info, ChecksumType checksumType, java.util.function.DoubleSupplier crcCheckChanceSupplier)

Method Summary

Modifier and Type	Method and Description
void	close() Releases the resources specific to this instance, but not the DataInputPlus that is used by the Reader.
long	getTotalCompressedBytesRead()
void	position(long position) Invoked when crossing into the next stream boundary in CassandraStreamReader.sections.
protected void	reBuffer() Implementations must implement this method to refill the buffer.

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

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

Methods inherited from class java.io.InputStream

available, mark, markSupported, read, reset, skip

Methods inherited from class java.lang.Object

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

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

skipBytesFully

Constructor Detail

CompressedInputStream

public CompressedInputStream(DataInputPlus source,
                             CompressionInfo info,
                             ChecksumType checksumType,
                             java.util.function.DoubleSupplier crcCheckChanceSupplier)

Parameters:

source - Input source to read compressed data from

info - Compression info

Method Detail

position

public void position(long position)
              throws java.io.IOException

Invoked when crossing into the next stream boundary in CassandraStreamReader.sections.

Throws:

java.io.IOException

reBuffer

protected void reBuffer()
                 throws java.io.IOException

Description copied from class: RebufferingInputStream

Implementations must implement this method to refill the buffer. They can expect the buffer to be empty when this method is invoked.

Specified by:

reBuffer in class RebufferingInputStream

Throws:

java.io.IOException

getTotalCompressedBytesRead

public long getTotalCompressedBytesRead()

close

public void close()

Releases the resources specific to this instance, but not the DataInputPlus that is used by the Reader.

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Overrides:

close in class java.io.InputStream