org.apache.jmeter.control
Class CriticalSectionController

java.lang.Object
  org.apache.jmeter.testelement.AbstractTestElement
      org.apache.jmeter.control.GenericController
          org.apache.jmeter.control.CriticalSectionController

All Implemented Interfaces:

Serializable, Cloneable, Controller, Searchable, TestElement, TestStateListener, ThreadListener, TestCompilerHelper

public class CriticalSectionController
extends GenericController
implements ThreadListener, TestStateListener

This is a Critical Section Controller; it will execute the set of statements (samplers/controllers, etc) under named lock.

In a programming world - this is equivalent of :

 try {
          named_lock.lock();
          statements ....
 } finally {
          named_lock.unlock();
 }
 

In JMeter you may have :

 Thread-Group (set to loop a number of times or indefinitely,
    ... Samplers ... (e.g. Counter )
    ... Other Controllers ....
    ... CriticalSectionController ( lock name like "foobar" )
       ... statements to perform when lock acquired
       ...
    ... Other Controllers /Samplers }
 

Since:

2.12

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.jmeter.control.GenericController

current, subControllersAndSamplers

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

COMMENTS, ENABLED, GUI_CLASS, NAME, TEST_CLASS

Constructor Summary

CriticalSectionController()
constructor

CriticalSectionController(String name)
constructor

Method Summary

String	getLockName()
Sampler	next() Determines the next sampler to be processed.
protected void	reInitialize() Called after execution of last child of the controller We release lock
void	setLockName(String name) Condition Accessor - this is gonna be any string value
void	testEnded() Called once for all threads after the end of a test.
void	testEnded(String host) Called once for all threads after the end of a test.
void	testStarted() Called just before the start of the test from the main engine thread.
void	testStarted(String host) Called just before the start of the test from the main engine thread.
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.control.GenericController

addIterationListener, addTestElement, addTestElementOnce, currentReturnedNull, fireIterationStart, fireIterEvents, getCurrentElement, getIterCount, getSubControllers, incrementCurrent, incrementIterCount, initialize, initializeSubControllers, isDone, isFirst, nextIsAController, nextIsASampler, nextIsNull, readResolve, reInitializeSubController, removeCurrentElement, removeIterationListener, resetCurrent, resetIterCount, setCurrentElement, setDone, setFirst, triggerEndOfLoop

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

addPropertiesValues, addProperty, addProperty, canRemove, clear, clearTemporary, clearTestElementChildren, clone, 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

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

canRemove, clear, clearTestElementChildren, clone, getComment, getName, getProperty, getPropertyAsBoolean, getPropertyAsBoolean, getPropertyAsDouble, getPropertyAsFloat, getPropertyAsInt, getPropertyAsInt, getPropertyAsLong, getPropertyAsLong, getPropertyAsString, getPropertyAsString, getThreadContext, getThreadName, isEnabled, isRunningVersion, isTemporary, propertyIterator, recoverRunningVersion, removeProperty, setComment, setEnabled, setName, setProperty, setProperty, setProperty, setProperty, setProperty, setProperty, setProperty, setProperty, setProperty, setRunningVersion, setTemporary, setThreadContext, setThreadName, traverse

Constructor Detail

CriticalSectionController

public CriticalSectionController()

constructor

CriticalSectionController

public CriticalSectionController(String name)

constructor

Method Detail

setLockName

public void setLockName(String name)

Condition Accessor - this is gonna be any string value

getLockName

public String getLockName()

Returns:

String lock name

next

public Sampler next()

Description copied from class: GenericController

Determines the next sampler to be processed.

If isDone, returns null.

Gets the list element using current pointer. If this is null, calls GenericController.nextIsNull().

If the list element is a sampler, calls GenericController.nextIsASampler(Sampler), otherwise calls GenericController.nextIsAController(Controller)

If any of the called methods throws NextIsNullException, returns null, otherwise the value obtained above is returned.

Specified by:

next in interface Controller

Overrides:

next in class GenericController

Returns:

the next sampler or null

See Also:

Controller.next()

reInitialize

protected void reInitialize()

Called after execution of last child of the controller We release lock

Overrides:

reInitialize in class GenericController

See Also:

GenericController.reInitialize()

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)

testStarted

public void testStarted()

Description copied from interface: TestStateListener

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)

Description copied from interface: TestStateListener

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

Parameters:

host - name of host

See Also:

StandardJMeterEngine.run()

testEnded

public void testEnded()

Description copied from interface: TestStateListener

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)

Description copied from interface: TestStateListener

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

Parameters:

host - name of host

See Also:

StandardJMeterEngine.stopTest()