alluxio.stress.client

Enum ClientIOOperation

java.lang.Object

java.lang.Enum<ClientIOOperation>

alluxio.stress.client.ClientIOOperation

All Implemented Interfaces:

Serializable, Comparable<ClientIOOperation>

public enum ClientIOOperation
extends Enum<ClientIOOperation>

The operations for the client io stress tests. There are 2 main types of reads: streaming and positioned. The streaming reads do not take file offsets as part of the api, so a random, streaming read is implemented with a seek() call before the read call. For positioned reads, the file offset is an explicit parameter in the api, so no seek() calls are necessary to read from any file offset.

Enum Constant Summary

Enum Constants

Enum Constant and Description
POS_READ Positioned read api.
POS_READ_FULLY Positioned read fully api.
READ_ARRAY Streaming read api, using arrays.
READ_BYTE_BUFFER Streaming read api, using byte buffers.
READ_FULLY Streaming read fully api.
WRITE The write operation, for writing data for the read operations.

Method Summary

Modifier and Type	Method and Description
static ClientIOOperation	fromString(String text) Creates an instance type from the string.
static boolean	isPosRead(ClientIOOperation operation)
static boolean	isRead(ClientIOOperation operation)
String	toString()
static ClientIOOperation	valueOf(String name) Returns the enum constant of this type with the specified name.
static ClientIOOperation[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

WRITE

public static final ClientIOOperation WRITE

The write operation, for writing data for the read operations.

READ_ARRAY

public static final ClientIOOperation READ_ARRAY

Streaming read api, using arrays.

READ_BYTE_BUFFER

public static final ClientIOOperation READ_BYTE_BUFFER

Streaming read api, using byte buffers.

READ_FULLY

public static final ClientIOOperation READ_FULLY

Streaming read fully api.

POS_READ

public static final ClientIOOperation POS_READ

Positioned read api.

POS_READ_FULLY

public static final ClientIOOperation POS_READ_FULLY

Positioned read fully api.

Method Detail

values

public static ClientIOOperation[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (ClientIOOperation c : ClientIOOperation.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static ClientIOOperation valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

isRead

public static boolean isRead(ClientIOOperation operation)

Parameters:

operation - the operation

Returns:

true if the operation is a read

isPosRead

public static boolean isPosRead(ClientIOOperation operation)

Parameters:

operation - the operation

Returns:

true if the operation is a positioned read

toString

public String toString()

Overrides:

toString in class Enum<ClientIOOperation>

fromString

public static ClientIOOperation fromString(String text)

Creates an instance type from the string. This method is case insensitive.

Parameters:

text - the instance type in string

Returns:

the created instance