Package org.apache.jmeter.timers

Class SyncTimer

java.lang.Object

org.apache.jmeter.testelement.AbstractTestElement

org.apache.jmeter.timers.SyncTimer

All Implemented Interfaces:

Serializable, Cloneable, Searchable, TestBean, TestElement, TestStateListener, ThreadListener, Timer

public class SyncTimer
extends AbstractTestElement
implements Timer, Serializable, TestBean, TestStateListener, ThreadListener

The purpose of the SyncTimer is to block threads until X number of threads have been blocked, and then they are all released at once. A SyncTimer can thus create large instant loads at various points of the test plan.

See Also:

Serialized Form

Field Summary

Fields inherited from interface org.apache.jmeter.testelement.TestElement

COMMENTS, ENABLED, GUI_CLASS, NAME, TEST_CLASS

Constructor Summary

Constructors

Constructor	Description
SyncTimer()

Method Summary

Modifier and Type	Method	Description
Object	clone()	We have to control the cloning process because we need some cross-thread communication if our synctimers are to be able to determine when to block and when to release.
long	delay()	This method is called after a sampling process is done to know how much time the sampling thread has to wait until sampling again.
int	getGroupSize()
long	getTimeoutInMs()
void	setGroupSize(int numThreads)
void	setTimeoutInMs(long timeoutInMs)
void	testEnded()	Called once for all threads after the end of a test.
void	testEnded(String host)	Reset timerCounter
void	testStarted()	Called just before the start of the test from the main engine thread.
void	testStarted(String host)	Reset timerCounter
void	threadFinished()	Called for each thread after all samples have been processed.
void	threadStarted()	Called for each thread before starting sampling.

Methods inherited from class org.apache.jmeter.testelement.AbstractTestElement

addPropertiesValues, addProperty, addProperty, addTestElement, canRemove, clear, clearTemporary, clearTestElementChildren, emptyTemporary, equals, getComment, getName, getProperty, getPropertyAsBoolean, getPropertyAsBoolean, getPropertyAsDouble, getPropertyAsFloat, getPropertyAsInt, getPropertyAsInt, getPropertyAsLong, getPropertyAsLong, getPropertyAsString, getPropertyAsString, getSearchableTokens, getThreadContext, getThreadName, hashCode, isEnabled, isRunningVersion, isTemporary, logProperties, mergeIn, propertyIterator, recoverRunningVersion, removeProperty, setComment, setEnabled, setName, setProperty, setProperty, setProperty, setProperty, setProperty, setProperty, setProperty, setProperty, setProperty, setRunningVersion, setTemporary, setThreadContext, setThreadName, traverse, traverseCollection, traverseMap, traverseProperty

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SyncTimer

public SyncTimer()

Method Detail

getGroupSize

public int getGroupSize()

Returns:

Returns the numThreads.

setGroupSize

public void setGroupSize(int numThreads)

Parameters:

numThreads - The numThreads to set.

delay

public long delay()

This method is called after a sampling process is done to know how much time the sampling thread has to wait until sampling again.

Specified by:

delay in interface Timer

Returns:

the computed delay value.

clone

public Object clone()

We have to control the cloning process because we need some cross-thread communication if our synctimers are to be able to determine when to block and when to release.

Specified by:

clone in interface TestElement

Overrides:

clone in class AbstractTestElement

testEnded

public void testEnded()

Called once for all threads after the end of a test. This will use the same element instances as at the start of the test.

N.B. testStarted() and testEnded() are called from different threads.

Specified by:

testEnded in interface TestStateListener

See Also:

StandardJMeterEngine.stopTest()

testEnded

public void testEnded(String host)

Reset timerCounter

Specified by:

testEnded in interface TestStateListener

Parameters:

host - name of host

See Also:

StandardJMeterEngine.stopTest()

testStarted

public void testStarted()

Called just before the start of the test from the main engine thread. This is before the test elements are cloned. Note that not all the test variables will have been set up at this point.

N.B. testStarted() and testEnded() are called from different threads.

Specified by:

testStarted in interface TestStateListener

See Also:

StandardJMeterEngine.run()

testStarted

public void testStarted(String host)

Reset timerCounter

Specified by:

testStarted in interface TestStateListener

Parameters:

host - name of host

See Also:

StandardJMeterEngine.run()

threadStarted

public void threadStarted()

Description copied from interface: ThreadListener

Called for each thread before starting sampling. WARNING: this is called before any Config test elements are processed, so any properties they define will not have been merged in yet.

Specified by:

threadStarted in interface ThreadListener

See Also:

JMeterThread.threadStarted()

threadFinished

public void threadFinished()

Description copied from interface: ThreadListener

Called for each thread after all samples have been processed.

Specified by:

threadFinished in interface ThreadListener

See Also:

JMeterThread.threadFinished(org.apache.jmeter.engine.event.LoopIterationListener)

getTimeoutInMs

public long getTimeoutInMs()

Returns:

the timeoutInMs

setTimeoutInMs

public void setTimeoutInMs(long timeoutInMs)

Parameters:

timeoutInMs - the timeoutInMs to set