Package org.apache.cassandra.io.util

Class TrackedDataInputPlus

java.lang.Object

org.apache.cassandra.io.util.TrackedDataInputPlus

All Implemented Interfaces:

DataInput, BytesReadTracker, DataInputPlus

public class TrackedDataInputPlus
extends Object
implements DataInputPlus, BytesReadTracker

This class is to track bytes read from given DataInput

Nested Class Summary

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

DataInputPlus.DataInputStreamPlus

Constructor Summary

Constructors

Constructor	Description
TrackedDataInputPlus(DataInput source)	Create a TrackedDataInputPlus from given DataInput with no limit of bytes to read
TrackedDataInputPlus(DataInput source, long limit)	Create a TrackedDataInputPlus from given DataInput with limit of bytes to read.

Method Summary

Modifier and Type	Method	Description
long	getBytesRead()
boolean	readBoolean()
byte	readByte()
char	readChar()
double	readDouble()
float	readFloat()
void	readFully(byte[] b)
void	readFully(byte[] b, int off, int len)
int	readInt()
String	readLine()
long	readLong()
short	readShort()
int	readUnsignedByte()
int	readUnsignedShort()
String	readUTF()
void	reset(long count)	reset counter to @param count
int	skipBytes(int n)	Always skips the requested number of bytes, unless EOF is reached

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

readUnsignedVInt, readUnsignedVInt32, readVInt, readVInt32, skipBytesFully

Constructor Details

TrackedDataInputPlus

public TrackedDataInputPlus(DataInput source)

Create a TrackedDataInputPlus from given DataInput with no limit of bytes to read

TrackedDataInputPlus

public TrackedDataInputPlus(DataInput source,
 long limit)

Create a TrackedDataInputPlus from given DataInput with limit of bytes to read. If limit is reached IOException will be thrown when trying to read more bytes.

Method Details

getBytesRead

public long getBytesRead()

Specified by:

getBytesRead in interface BytesReadTracker

reset

public void reset(long count)

reset counter to @param count

Specified by:

reset in interface BytesReadTracker

readBoolean

public boolean readBoolean()
                    throws IOException

Specified by:

readBoolean in interface DataInput

Throws:

IOException

readByte

public byte readByte()
              throws IOException

Specified by:

readByte in interface DataInput

Throws:

IOException

readChar

public char readChar()
              throws IOException

Specified by:

readChar in interface DataInput

Throws:

IOException

readDouble

public double readDouble()
                  throws IOException

Specified by:

readDouble in interface DataInput

Throws:

IOException

readFloat

public float readFloat()
                throws IOException

Specified by:

readFloat in interface DataInput

Throws:

IOException

readFully

public void readFully(byte[] b,
 int off,
 int len)
               throws IOException

Specified by:

readFully in interface DataInput

Throws:

IOException

readFully

public void readFully(byte[] b)
               throws IOException

Specified by:

readFully in interface DataInput

Throws:

IOException

readInt

public int readInt()
            throws IOException

Specified by:

readInt in interface DataInput

Throws:

IOException

readLine

public String readLine()
                throws IOException

Specified by:

readLine in interface DataInput

Throws:

IOException

readLong

public long readLong()
              throws IOException

Specified by:

readLong in interface DataInput

Throws:

IOException

readShort

public short readShort()
                throws IOException

Specified by:

readShort in interface DataInput

Throws:

IOException

readUTF

public String readUTF()
               throws IOException

Specified by:

readUTF in interface DataInput

Throws:

IOException

readUnsignedByte

public int readUnsignedByte()
                     throws IOException

Specified by:

readUnsignedByte in interface DataInput

Throws:

IOException

readUnsignedShort

public int readUnsignedShort()
                      throws IOException

Specified by:

readUnsignedShort in interface DataInput

Throws:

IOException

skipBytes

public int skipBytes(int n)
              throws IOException

Description copied from interface: DataInputPlus

Always skips the requested number of bytes, unless EOF is reached

Specified by:

skipBytes in interface DataInput

Specified by:

skipBytes in interface DataInputPlus

Parameters:

n - number of bytes to skip

Returns:

number of bytes skipped

Throws:

IOException