Package com.mapr.fs

Class MapRFsDataInputStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

java.io.DataInputStream

org.apache.hadoop.fs.FSDataInputStream

com.mapr.fs.MapRFsDataInputStream

All Implemented Interfaces:

Closeable, DataInput, AutoCloseable, org.apache.hadoop.fs.ByteBufferPositionedReadable, org.apache.hadoop.fs.ByteBufferReadable, org.apache.hadoop.fs.CanSetDropBehind, org.apache.hadoop.fs.CanSetReadahead, org.apache.hadoop.fs.CanUnbuffer, org.apache.hadoop.fs.HasEnhancedByteBufferAccess, org.apache.hadoop.fs.HasFileDescriptor, org.apache.hadoop.fs.PositionedReadable, org.apache.hadoop.fs.Seekable, org.apache.hadoop.fs.statistics.IOStatisticsSource, org.apache.hadoop.fs.StreamCapabilities

public class MapRFsDataInputStream
extends org.apache.hadoop.fs.FSDataInputStream

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.fs.FSDataInputStream

org.apache.hadoop.fs.FSDataInputStream.FadviseType

Nested classes/interfaces inherited from interface org.apache.hadoop.fs.StreamCapabilities

org.apache.hadoop.fs.StreamCapabilities.StreamCapability

Field Summary

Fields inherited from class java.io.FilterInputStream

in

Fields inherited from interface org.apache.hadoop.fs.StreamCapabilities

ABORTABLE_STREAM, DROPBEHIND, HFLUSH, HSYNC, IOSTATISTICS, IOSTATISTICS_CONTEXT, PREADBYTEBUFFER, READAHEAD, READBYTEBUFFER, UNBUFFER, VECTOREDIO

Constructor Summary

Constructors

Constructor	Description
MapRFsDataInputStream(MapRFsInStream x)

Method Summary

Modifier and Type	Method	Description
void	adviseFile(org.apache.hadoop.fs.FSDataInputStream.FadviseType type, long offset, long count)
long	getChunkSize()
long[]	getFidServers()
String	getFidStr()
long	getFileLength()
long	getPos()
org.apache.hadoop.fs.FSInputStream	getWrappedStream()
int	read(long pos, byte[] buf, int off, int len)
void	readFully(long pos, byte[] buf)
void	seek(long pos)
boolean	seekToNewSource(long pos)

Methods inherited from class org.apache.hadoop.fs.FSDataInputStream

getFileDescriptor, getIOStatistics, hasCapability, maxReadSizeForVectorReads, minSeekForVectorReads, read, read, read, read, readFully, readFully, readVectored, releaseBuffer, setDropBehind, setReadahead, toString, unbuffer

Methods inherited from class java.io.DataInputStream

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

Methods inherited from class java.io.FilterInputStream

available, close, mark, markSupported, read, reset, skip

Methods inherited from class java.io.InputStream

nullInputStream, readAllBytes, readNBytes, readNBytes, skipNBytes, transferTo

Methods inherited from class java.lang.Object

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

Constructor Details

MapRFsDataInputStream

public MapRFsDataInputStream(MapRFsInStream x)
                      throws IOException

Throws:

IOException

Method Details

getPos

public long getPos()
            throws IOException

Specified by:

getPos in interface org.apache.hadoop.fs.Seekable

Overrides:

getPos in class org.apache.hadoop.fs.FSDataInputStream

Throws:

IOException

read

public int read(long pos,
 byte[] buf,
 int off,
 int len)
         throws IOException

Specified by:

read in interface org.apache.hadoop.fs.PositionedReadable

Overrides:

read in class org.apache.hadoop.fs.FSDataInputStream

Throws:

IOException

readFully

public void readFully(long pos,
 byte[] buf)
               throws IOException

Specified by:

readFully in interface org.apache.hadoop.fs.PositionedReadable

Overrides:

readFully in class org.apache.hadoop.fs.FSDataInputStream

Throws:

IOException

seek

public void seek(long pos)
          throws IOException

Specified by:

seek in interface org.apache.hadoop.fs.Seekable

Overrides:

seek in class org.apache.hadoop.fs.FSDataInputStream

Throws:

IOException

seekToNewSource

public boolean seekToNewSource(long pos)
                        throws IOException

Specified by:

seekToNewSource in interface org.apache.hadoop.fs.Seekable

Overrides:

seekToNewSource in class org.apache.hadoop.fs.FSDataInputStream

Throws:

IOException

getWrappedStream

public org.apache.hadoop.fs.FSInputStream getWrappedStream()

Overrides:

getWrappedStream in class org.apache.hadoop.fs.FSDataInputStream

getFileLength

public long getFileLength()

Overrides:

getFileLength in class org.apache.hadoop.fs.FSDataInputStream

adviseFile

public void adviseFile(org.apache.hadoop.fs.FSDataInputStream.FadviseType type,
 long offset,
 long count)
                throws IOException

Overrides:

adviseFile in class org.apache.hadoop.fs.FSDataInputStream

Throws:

IOException

getFidStr

public String getFidStr()

Overrides:

getFidStr in class org.apache.hadoop.fs.FSDataInputStream

getFidServers

public long[] getFidServers()

Overrides:

getFidServers in class org.apache.hadoop.fs.FSDataInputStream

getChunkSize

public long getChunkSize()

Overrides:

getChunkSize in class org.apache.hadoop.fs.FSDataInputStream