org.snf4j.core

Class Constants

java.lang.Object

org.snf4j.core.Constants

public class Constants
extends Object

Holder for constants globally used by the API.

Author:

SNF4J.ORG

Field Summary

Fields

Modifier and Type	Field and Description
static String	ALLOCATOR_CACHE_AGE_THRESHOLD_PROPERTY System property specifying the cache age threshold after reaching which the cache should be considered by the CachingAllocator for the size reduction.
static String	ALLOCATOR_MAX_CACHE_SIZE_PROPERTY System property specifying the maximum size of the caches used by the CachingAllocator.
static String	ALLOCATOR_MIN_CACHE_SIZE_PROPERTY System property specifying the minimum size for the caches used by the CachingAllocator.
static String	ALLOCATOR_NUM_OF_CACHES_PROPERTY System property specifying number of caches used by the CachingAllocator.
static String	EXCEPTION_LOGGER_SYSTEM_PROERTY System property specifying the full class name of an external exception logger.
static String	IGNORE_NO_SESSION_TIMER_EXCEPTION System property specifying if it will be possible to create engine driven datagram-oriented sessions without a session timer.
static String	LOGGER_FACTORY_SYSTEM_PROERTY System property specifying the full class name of an external logger factory.
static String	MAX_HANDSHAKE_LOOPS_THRESHOLD System property specifying a threshold for the maximum number of loops needed to finish the handshake phase for the engine driven sessions.
static String	NO Value No.
static String	SELECTOR_REBUILD_THRESHOLD_SYSTEM_PROPERY System property specifying the threshold for the automatic selector rebuild.
static String	SELECTOR_SELECT_TIMEOUT System property specifying the maximum time in milliseconds the selector will block while waiting for a channel to become ready.
static String	SHORT_NAME Short name for the API.
static String	YES Value Yes.

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

LOGGER_FACTORY_SYSTEM_PROERTY

public static final String LOGGER_FACTORY_SYSTEM_PROERTY

System property specifying the full class name of an external logger factory. The pointed class must implement the ILoggerFactory interface.

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Constant Field Values

EXCEPTION_LOGGER_SYSTEM_PROERTY

public static final String EXCEPTION_LOGGER_SYSTEM_PROERTY

System property specifying the full class name of an external exception logger. The pointed class must implement the IExceptionLogger interface.

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Constant Field Values

SELECTOR_REBUILD_THRESHOLD_SYSTEM_PROPERY

public static final String SELECTOR_REBUILD_THRESHOLD_SYSTEM_PROPERY

System property specifying the threshold for the automatic selector rebuild. It is provided as a way to work around the 100% CPU bug in JDK (JDK-6403933).

The default value for this property is 512.

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Constant Field Values

SELECTOR_SELECT_TIMEOUT

public static final String SELECTOR_SELECT_TIMEOUT

System property specifying the maximum time in milliseconds the selector will block while waiting for a channel to become ready. If set to zero the selector will block Indefinitely.

The default value for this property is 1000

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Constant Field Values

IGNORE_NO_SESSION_TIMER_EXCEPTION

public static final String IGNORE_NO_SESSION_TIMER_EXCEPTION

System property specifying if it will be possible to create engine driven datagram-oriented sessions without a session timer.

The allowed values are:
0 - IllegalStateException will be thrown if no timer is configured,
1 - no exception will be thrown,
any other value will be interpreted as 0

NOTE: Allowing to create an engine driven datagram-oriented session without a timer will make the session not capable of retransmitting lost datagrams and timing out the handshake phase.

The default value for this property is 0

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Constant Field Values

MAX_HANDSHAKE_LOOPS_THRESHOLD

public static final String MAX_HANDSHAKE_LOOPS_THRESHOLD

System property specifying a threshold for the maximum number of loops needed to finish the handshake phase for the engine driven sessions. Usually the handshake phase requires small number of loops to finish so reaching the threshold set to a big value may indicate that an IEngine implementation used to drive a session stuck in some bad state causing an infinite loop.

The default value for this property is 500.

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Constant Field Values

SHORT_NAME

public static final String SHORT_NAME

Short name for the API.

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Constant Field Values

YES

public static final String YES

Value Yes.

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Constant Field Values

NO

public static final String NO

Value No.

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Constant Field Values

ALLOCATOR_NUM_OF_CACHES_PROPERTY

public static final String ALLOCATOR_NUM_OF_CACHES_PROPERTY

System property specifying number of caches used by the CachingAllocator. Each cache is used to hold byte buffers of the specified capacity. This property has global effect what means that setting/changing it once the first instance of the allocator has been already created will have no effect on newly created allocators.

The default value for this property is 8.

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Constant Field Values

ALLOCATOR_MAX_CACHE_SIZE_PROPERTY

public static final String ALLOCATOR_MAX_CACHE_SIZE_PROPERTY

System property specifying the maximum size of the caches used by the CachingAllocator. The maximum size determining the max number of byte buffers stored in one cache. Setting/changing this property will affect all newly created instances of the allocator.

The default value for this property is 512.

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Constant Field Values

ALLOCATOR_MIN_CACHE_SIZE_PROPERTY

public static final String ALLOCATOR_MIN_CACHE_SIZE_PROPERTY

System property specifying the minimum size for the caches used by the CachingAllocator. The minimum size determining the minimal number of byte buffers that have to be stored in one cache (i.e. auto reducing mechanisms will not reduce the size below this value). Setting/changing this property will affect all newly created instances of the allocator.

The default value for this property is 256.

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Constant Field Values

ALLOCATOR_CACHE_AGE_THRESHOLD_PROPERTY

public static final String ALLOCATOR_CACHE_AGE_THRESHOLD_PROPERTY

System property specifying the cache age threshold after reaching which the cache should be considered by the CachingAllocator for the size reduction. The cache age is interpreted as the number of performed allocations and releasings the oldest byte buffer survived in the cache. Setting/changing this property will affect all newly created instances of the allocator.

The default value for this property is 1000000.

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Constant Field Values