org.apache.cassandra.db.commitlog

Class EncryptedFileSegmentInputStream

java.lang.Object

java.io.InputStream

org.apache.cassandra.io.util.RebufferingInputStream

org.apache.cassandra.io.util.DataInputBuffer

org.apache.cassandra.io.util.FileSegmentInputStream

org.apache.cassandra.db.commitlog.EncryptedFileSegmentInputStream

All Implemented Interfaces:

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

public class EncryptedFileSegmentInputStream
extends FileSegmentInputStream
implements FileDataInput, java.io.DataInput

Each segment of an encrypted file may contain many encrypted chunks, and each chunk needs to be individually decrypted to reconstruct the full segment.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	EncryptedFileSegmentInputStream.ChunkProvider

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
EncryptedFileSegmentInputStream(java.lang.String filePath, long segmentOffset, int position, int expectedLength, EncryptedFileSegmentInputStream.ChunkProvider chunkProvider)

Method Summary

Modifier and Type	Method and Description
long	bytesPastMark(DataPosition mark)
long	bytesRemaining()
long	getFilePointer()
boolean	isEOF()
void	reBuffer() Implementations must implement this method to refill the buffer.
void	seek(long position)

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

getPath, mark, markSupported, reset

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

available, close

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

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

Methods inherited from class java.io.InputStream

mark, 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.FileDataInput

getPath

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

mark, reset

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, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedShort, readUTF

Methods inherited from interface java.io.Closeable

close

Constructor Detail

EncryptedFileSegmentInputStream

public EncryptedFileSegmentInputStream(java.lang.String filePath,
                                       long segmentOffset,
                                       int position,
                                       int expectedLength,
                                       EncryptedFileSegmentInputStream.ChunkProvider chunkProvider)

Method Detail

getFilePointer

public long getFilePointer()

Specified by:

getFilePointer in interface FileDataInput

Overrides:

getFilePointer in class FileSegmentInputStream

isEOF

public boolean isEOF()

Specified by:

isEOF in interface FileDataInput

Overrides:

isEOF in class FileSegmentInputStream

bytesRemaining

public long bytesRemaining()

Specified by:

bytesRemaining in interface FileDataInput

Overrides:

bytesRemaining in class FileSegmentInputStream

seek

public void seek(long position)

Specified by:

seek in interface FileDataInput

Overrides:

seek in class FileSegmentInputStream

bytesPastMark

public long bytesPastMark(DataPosition mark)

Specified by:

bytesPastMark in interface RewindableDataInput

Overrides:

bytesPastMark in class FileSegmentInputStream

reBuffer

public void reBuffer()

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.

Overrides:

reBuffer in class DataInputBuffer