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java.lang.Objectorg.apache.hadoop.hbase.util.Threads
@InterfaceAudience.Public @InterfaceStability.Stable public class Threads
Thread Utility
| Field Summary | |
|---|---|
protected static org.apache.commons.logging.Log |
LOG
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| Constructor Summary | |
|---|---|
Threads()
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| Method Summary | |
|---|---|
static ThreadPoolExecutor |
getBoundedCachedThreadPool(int maxCachedThread,
long timeout,
TimeUnit unit,
ThreadFactory threadFactory)
Create a new CachedThreadPool with a bounded number as the maximum thread size in the pool. |
static ThreadFactory |
getNamedThreadFactory(String prefix)
Returns a ThreadFactory that names each created thread uniquely,
with a common prefix. |
static ThreadFactory |
newDaemonThreadFactory(String prefix)
Same as {#newDaemonThreadFactory(String, UncaughtExceptionHandler)}, without setting the exception handler. |
static ThreadFactory |
newDaemonThreadFactory(String prefix,
Thread.UncaughtExceptionHandler handler)
Get a named ThreadFactory that just builds daemon threads. |
static Thread |
setDaemonThreadRunning(Thread t)
Utility method that sets name, daemon status and starts passed thread. |
static Thread |
setDaemonThreadRunning(Thread t,
String name)
Utility method that sets name, daemon status and starts passed thread. |
static Thread |
setDaemonThreadRunning(Thread t,
String name,
Thread.UncaughtExceptionHandler handler)
Utility method that sets name, daemon status and starts passed thread. |
static void |
shutdown(Thread t)
Shutdown passed thread using isAlive and join. |
static void |
shutdown(Thread t,
long joinwait)
Shutdown passed thread using isAlive and join. |
static void |
sleep(long millis)
If interrupted, just prints out the interrupt on STDOUT, resets interrupt and returns |
static void |
sleepWithoutInterrupt(long msToWait)
Sleeps for the given amount of time even if interrupted. |
static void |
threadDumpingIsAlive(Thread t)
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| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
|---|
protected static final org.apache.commons.logging.Log LOG
| Constructor Detail |
|---|
public Threads()
| Method Detail |
|---|
public static Thread setDaemonThreadRunning(Thread t)
t - thread to run
t.
public static Thread setDaemonThreadRunning(Thread t,
String name)
t - thread to frobname - new name
t.
public static Thread setDaemonThreadRunning(Thread t,
String name,
Thread.UncaughtExceptionHandler handler)
t - thread to frobname - new namehandler - A handler to set on the thread. Pass null if want to
use default handler.
t.public static void shutdown(Thread t)
t - Thread to shutdown
public static void shutdown(Thread t,
long joinwait)
joinwait - Pass 0 if we're to wait forever.t - Thread to shutdown
public static void threadDumpingIsAlive(Thread t)
throws InterruptedException
t - Waits on the passed thread to die dumping a threaddump every
minute while its up.
InterruptedExceptionpublic static void sleep(long millis)
millis - How long to sleep for in milliseconds.public static void sleepWithoutInterrupt(long msToWait)
msToWait - the amount of time to sleep in milliseconds
public static ThreadPoolExecutor getBoundedCachedThreadPool(int maxCachedThread,
long timeout,
TimeUnit unit,
ThreadFactory threadFactory)
maxCachedThread - the maximum thread could be created in the pooltimeout - the maximum time to waitunit - the time unit of the timeout argumentthreadFactory - the factory to use when creating new threads
public static ThreadFactory getNamedThreadFactory(String prefix)
ThreadFactory that names each created thread uniquely,
with a common prefix.
prefix - The prefix of every created Thread's name
ThreadFactory that names threadspublic static ThreadFactory newDaemonThreadFactory(String prefix)
public static ThreadFactory newDaemonThreadFactory(String prefix,
Thread.UncaughtExceptionHandler handler)
ThreadFactory that just builds daemon threads.
prefix - name prefix for all threads created from the factoryhandler - unhandles exception handler to set for all threads
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