org.apache.ignite.internal.processors.hadoop.shuffle

Class HadoopShuffleMessage

java.lang.Object

org.apache.ignite.internal.processors.hadoop.shuffle.HadoopShuffleMessage

All Implemented Interfaces:

Externalizable, Serializable, HadoopMessage, Message

public class HadoopShuffleMessage
extends Object
implements Message, HadoopMessage

Shuffle message.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	HadoopShuffleMessage.Visitor Visitor.

Constructor Summary

Constructors

Constructor and Description
HadoopShuffleMessage()
HadoopShuffleMessage(HadoopJobId jobId, int reducer, int size)

Method Summary

Methods

Modifier and Type	Method and Description
void	addKey(long keyPtr, int keySize)
void	addValue(long valPtr, int valSize)
boolean	available(int size, boolean valOnly)
byte[]	buffer()
byte	directType() Gets message type.
byte	fieldsCount() Gets fields count.
long	id()
HadoopJobId	jobId()
int	offset()
void	onAckReceived() Method called when ack message received.
void	readExternal(ObjectInput in)
boolean	readFrom(ByteBuffer buf, MessageReader reader) Reads this message from provided byte buffer.
int	reducer()
String	toString()
void	visit(HadoopShuffleMessage.Visitor v)
void	writeExternal(ObjectOutput out)
boolean	writeTo(ByteBuffer buf, MessageWriter writer) Writes this message to provided byte buffer.

Methods inherited from class java.lang.Object

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

Constructor Detail

HadoopShuffleMessage

public HadoopShuffleMessage()

HadoopShuffleMessage

public HadoopShuffleMessage(HadoopJobId jobId,
                    int reducer,
                    int size)

Parameters:

size - Size.

Method Detail

id

public long id()

Returns:

Message ID.

jobId

public HadoopJobId jobId()

Returns:

Job ID.

reducer

public int reducer()

Returns:

Reducer.

buffer

public byte[] buffer()

Returns:

Buffer.

offset

public int offset()

Returns:

Offset.

available

public boolean available(int size,
                boolean valOnly)

Parameters:

size - Size.

valOnly - Only value wll be added.

Returns:

true If this message can fit additional data of this size

addKey

public void addKey(long keyPtr,
          int keySize)

Parameters:

keyPtr - Key pointer.

keySize - Key size.

addValue

public void addValue(long valPtr,
            int valSize)

Parameters:

valPtr - Value pointer.

valSize - Value size.

visit

public void visit(HadoopShuffleMessage.Visitor v)
           throws IgniteCheckedException

Parameters:

v - Visitor.

Throws:

IgniteCheckedException

writeTo

public boolean writeTo(ByteBuffer buf,
              MessageWriter writer)

Writes this message to provided byte buffer.

Specified by:

writeTo in interface Message

Parameters:

buf - Byte buffer.

writer - Writer.

Returns:

Whether message was fully written.

readFrom

public boolean readFrom(ByteBuffer buf,
               MessageReader reader)

Reads this message from provided byte buffer.

Specified by:

readFrom in interface Message

Parameters:

buf - Byte buffer.

reader - Reader.

Returns:

Whether message was fully read.

directType

public byte directType()

Gets message type.

Specified by:

directType in interface Message

Returns:

Message type.

fieldsCount

public byte fieldsCount()

Gets fields count.

Specified by:

fieldsCount in interface Message

Returns:

Fields count.

onAckReceived

public void onAckReceived()

Method called when ack message received.

Specified by:

onAckReceived in interface Message

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException

toString

public String toString()

Overrides:

toString in class Object