gov.nasa.worldwind.util

Class NetworkCheckThread

java.lang.Object

java.lang.Thread

gov.nasa.worldwind.util.NetworkCheckThread

All Implemented Interfaces:

java.lang.Runnable

public class NetworkCheckThread
extends java.lang.Thread

Periodically checks network availability.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler

Field Summary

Fields

Modifier and Type	Field and Description
protected static long	DEFAULT_NET_CHECK_INTERVAL
protected java.util.concurrent.atomic.AtomicBoolean	isNetAvailable
protected java.util.concurrent.atomic.AtomicLong	netChecInterval
protected java.util.concurrent.atomic.AtomicBoolean	showNetStatus

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor and Description
NetworkCheckThread(java.util.concurrent.atomic.AtomicBoolean showNetStatus, java.util.concurrent.atomic.AtomicBoolean isNetAvailable, java.lang.Long interval) Constructs a new instance of this class.

Method Summary

Modifier and Type	Method and Description
void	run()

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_NET_CHECK_INTERVAL

protected static final long DEFAULT_NET_CHECK_INTERVAL

See Also:

Constant Field Values

isNetAvailable

protected java.util.concurrent.atomic.AtomicBoolean isNetAvailable

netChecInterval

protected java.util.concurrent.atomic.AtomicLong netChecInterval

showNetStatus

protected java.util.concurrent.atomic.AtomicBoolean showNetStatus

Constructor Detail

NetworkCheckThread

public NetworkCheckThread(java.util.concurrent.atomic.AtomicBoolean showNetStatus,
                          java.util.concurrent.atomic.AtomicBoolean isNetAvailable,
                          java.lang.Long interval)

Constructs a new instance of this class. Once started, the thread checks network availability at a specified frequency and stores the result in an atomic variable specified to the constructor. The thread terminates when it's interrupted or when a specified boolean atomic variable has the value false.

Parameters:

showNetStatus - a reference to an atomic variable indicating whether the thread should continue running. This variable is tested prior to each network check. The thread terminates when it becomes false.

isNetAvailable - a reference to an atomic variable in which to write the status of the network check.

interval - the interval at which to perform the network check, or null if the default interval of one second is to be used.

Method Detail

run

public void run()

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread