alluxio.wire

Class WorkerIdentity.ParserV0

java.lang.Object

alluxio.wire.WorkerIdentity.ParserV0

Enclosing class:

WorkerIdentity

public static class WorkerIdentity.ParserV0
extends Object

Parser for legacy long-based worker IDs.
Code that needs to be forward- and backward-compatible should not rely on a version specific parser implementation.

Field Summary

Fields

Modifier and Type	Field and Description
static WorkerIdentity.ParserV0	INSTANCE
static int	VERSION

Method Summary

Modifier and Type	Method and Description
protected void	ensureVersionMatch(WorkerIdentity identity)
WorkerIdentity	fromLong(long workerId) Parses from a long worker ID.
WorkerIdentity	fromProto(WorkerIdentity workerIdentityProto) Parses from a Protobuf representation.
int	getVersion()
Object	getVersionSpecificRepresentation(WorkerIdentity identity)
protected Long	getVersionSpecificRepresentation0(WorkerIdentity workerIdentity)
protected byte[]	parseIdentifier(com.google.protobuf.ByteString identifier)
long	toLong(WorkerIdentity identity) Converts to a numeric worker ID represented as a long.
WorkerIdentity	toProto(WorkerIdentity workerIdentity) Converts to a protobuf representation.

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final WorkerIdentity.ParserV0 INSTANCE

VERSION

public static final int VERSION

See Also:

Constant Field Values

Method Detail

getVersion

public int getVersion()

parseIdentifier

protected byte[] parseIdentifier(com.google.protobuf.ByteString identifier)
                          throws ProtoParsingException

Throws:

ProtoParsingException

getVersionSpecificRepresentation0

protected Long getVersionSpecificRepresentation0(WorkerIdentity workerIdentity)

fromLong

public WorkerIdentity fromLong(long workerId)

Parses from a long worker ID.
Code that needs to be forward- and backward-compatible should not rely on a version specific parser implementation.

Parameters:

workerId - worker ID

Returns:

worker identity

toLong

public long toLong(WorkerIdentity identity)
            throws IllegalArgumentException

Converts to a numeric worker ID represented as a long.

Parameters:

identity - identity

Returns:

numeric worker ID

Throws:

IllegalArgumentException - if the identity was not created from a numeric ID

getVersionSpecificRepresentation

public Object getVersionSpecificRepresentation(WorkerIdentity identity)

Returns:

a version-specific representation of worker identity

ensureVersionMatch

protected void ensureVersionMatch(WorkerIdentity identity)
                           throws IllegalArgumentException

Throws:

IllegalArgumentException

toProto

public WorkerIdentity toProto(WorkerIdentity workerIdentity)

Converts to a protobuf representation.

Parameters:

workerIdentity - the object to convert

Returns:

worker identity

fromProto

public WorkerIdentity fromProto(WorkerIdentity workerIdentityProto)
                         throws ProtoParsingException

Parses from a Protobuf representation.

Parameters:

workerIdentityProto - the proto message

Returns:

the worker identity

Throws:

MissingRequiredFieldsParsingException - if the version or the identifier fields are missing in the protobuf representation

InvalidVersionParsingException - if the version is not getVersion()

ProtoParsingException - if the protobuf representation is invalid