org.apache.hadoop.hbase

Class HBaseCommonTestingUtility.PortAllocator

java.lang.Object

org.apache.hadoop.hbase.HBaseCommonTestingUtility.PortAllocator

Enclosing class:

HBaseCommonTestingUtility

static class HBaseCommonTestingUtility.PortAllocator
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
(package private) static interface	HBaseCommonTestingUtility.PortAllocator.AvailablePortChecker

Field Summary

Fields

Modifier and Type	Field and Description
private static int	MAX_RANDOM_PORT
private static int	MIN_RANDOM_PORT
private HBaseCommonTestingUtility.PortAllocator.AvailablePortChecker	portChecker
private Random	random
private Set<Integer>	takenRandomPorts A set of ports that have been claimed using randomFreePort().

Constructor Summary

Constructors

Constructor and Description
PortAllocator(Random random)
PortAllocator(Random random, HBaseCommonTestingUtility.PortAllocator.AvailablePortChecker portChecker)

Method Summary

Modifier and Type	Method and Description
int	randomFreePort() Returns a random free port and marks that port as taken.
private int	randomPort() Returns a random port.

Methods inherited from class java.lang.Object

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

Field Detail

MIN_RANDOM_PORT

private static final int MIN_RANDOM_PORT

See Also:

Constant Field Values

MAX_RANDOM_PORT

private static final int MAX_RANDOM_PORT

See Also:

Constant Field Values

takenRandomPorts

private final Set<Integer> takenRandomPorts

A set of ports that have been claimed using randomFreePort().

random

private final Random random

portChecker

private final HBaseCommonTestingUtility.PortAllocator.AvailablePortChecker portChecker

Constructor Detail

PortAllocator

public PortAllocator(Random random)

PortAllocator

public PortAllocator(Random random,
                     HBaseCommonTestingUtility.PortAllocator.AvailablePortChecker portChecker)

Method Detail

randomFreePort

public int randomFreePort()

Returns a random free port and marks that port as taken. Not thread-safe. Expected to be called from single-threaded test setup code/

randomPort

private int randomPort()

Returns a random port. These ports cannot be registered with IANA and are intended for dynamic allocation (see http://bit.ly/dynports).