org.apache.ignite.internal.processors.igfs

Class IgfsFileAffinityRange

java.lang.Object

org.apache.ignite.internal.processors.igfs.IgfsFileAffinityRange

All Implemented Interfaces:

Externalizable, Serializable, Message

public class IgfsFileAffinityRange
extends Object
implements Message, Externalizable

Affinity range.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static int	RANGE_STATUS_INITIAL Initial range status, right after creation.
static int	RANGE_STATUS_MOVED Fragmentizer finished block copy for this range.
static int	RANGE_STATUS_MOVING Moving range state.

Constructor Summary

Constructors

Constructor and Description
IgfsFileAffinityRange() Empty constructor required by Externalizable.

Method Summary

Methods

Modifier and Type	Method and Description
IgniteUuid	affinityKey()
boolean	belongs(long blockStartOff)
IgfsFileAffinityRange	concat(IgfsFileAffinityRange range) Tries to concatenate this range with a given one.
byte	directType() Gets message type.
boolean	done()
boolean	empty()
long	endOffset()
void	expand(long blockStartOff, int expansionSize) Expands this range by given block.
byte	fieldsCount() Gets fields count.
boolean	greater(long blockStartOff)
boolean	less(long blockStartOff)
void	markDone() Marks this range as done.
void	readExternal(ObjectInput in)
boolean	readFrom(ByteBuffer buf, MessageReader reader) Reads this message from provided byte buffer.
boolean	regionEqual(IgfsFileAffinityRange other) Checks if range regions are equal.
Collection<IgfsFileAffinityRange>	split(long maxSize) Splits range into collection if smaller ranges with length equal to maxSize.
long	startOffset()
int	status()
String	toString()
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

Field Detail

RANGE_STATUS_INITIAL

public static final int RANGE_STATUS_INITIAL

Initial range status, right after creation.

See Also:

Constant Field Values

RANGE_STATUS_MOVING

public static final int RANGE_STATUS_MOVING

Moving range state. Fragmentizer started blocks copy.

See Also:

Constant Field Values

RANGE_STATUS_MOVED

public static final int RANGE_STATUS_MOVED

Fragmentizer finished block copy for this range.

See Also:

Constant Field Values

Constructor Detail

IgfsFileAffinityRange

public IgfsFileAffinityRange()

Empty constructor required by Externalizable.

Method Detail

affinityKey

public IgniteUuid affinityKey()

Returns:

Affinity key for this range.

startOffset

public long startOffset()

Returns:

Range start offset.

endOffset

public long endOffset()

Returns:

Range end offset.

belongs

public boolean belongs(long blockStartOff)

Parameters:

blockStartOff - Block start offset to check.

Returns:

True if block with given start offset belongs to this range.

less

public boolean less(long blockStartOff)

Parameters:

blockStartOff - Block start offset to check.

Returns:

True if block with given start offset is located before this range.

greater

public boolean greater(long blockStartOff)

Parameters:

blockStartOff - Block start offset to check.

Returns:

True if block with given start offset is located after this range.

empty

public boolean empty()

Returns:

If range is empty, i.e. has zero length.

status

public int status()

Returns:

Range status.

expand

public void expand(long blockStartOff,
          int expansionSize)

Expands this range by given block.

Parameters:

blockStartOff - Offset of block start.

expansionSize - Block size.

split

public Collection<IgfsFileAffinityRange> split(long maxSize)

Splits range into collection if smaller ranges with length equal to maxSize.

Parameters:

maxSize - Split part maximum size.

Returns:

Collection of range parts.

concat

@Nullable
public IgfsFileAffinityRange concat(IgfsFileAffinityRange range)

Tries to concatenate this range with a given one. If ranges are not adjacent, will return null.

Parameters:

range - Range to concatenate with.

Returns:

Concatenation result or null if ranges are not adjacent.

markDone

public void markDone()

Marks this range as done.

done

public boolean done()

Returns:

Done flag.

regionEqual

public boolean regionEqual(IgfsFileAffinityRange other)

Checks if range regions are equal.

Parameters:

other - Other range to check against.

Returns:

True if range regions are equal.

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

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.

toString

public String toString()

Overrides:

toString in class Object